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-rw-r--r--010vm.cc9
-rw-r--r--013update_operation.cc2
-rw-r--r--018type_abbreviations.cc2
-rw-r--r--020run.cc6
-rw-r--r--021check_instruction.cc2
-rw-r--r--022arithmetic.cc66
-rw-r--r--023boolean.cc6
-rw-r--r--024jump.cc16
-rw-r--r--025compare.cc36
-rw-r--r--026call.cc2
-rw-r--r--027call_ingredient.cc4
-rw-r--r--028call_return.cc6
-rw-r--r--029tools.cc2
-rw-r--r--030container.cc14
-rw-r--r--031merge.cc14
-rw-r--r--032array.cc22
-rw-r--r--033exclusive_container.cc12
-rw-r--r--034address.cc4
-rw-r--r--035lookup.cc2
-rw-r--r--038new_text.cc2
-rw-r--r--039location_array.cc2
-rw-r--r--041jump_target.cc4
-rw-r--r--042name.cc6
-rw-r--r--043space.cc4
-rw-r--r--050scenario.cc2
-rw-r--r--053recipe_header.cc8
-rw-r--r--054static_dispatch.cc14
-rw-r--r--056shape_shifting_recipe.cc8
-rw-r--r--057immutable.cc12
-rw-r--r--058to_text.cc2
-rw-r--r--069hash.cc4
-rw-r--r--071recipe.cc6
-rw-r--r--072scheduler.cc8
-rw-r--r--073wait.cc22
-rw-r--r--074deep_copy.cc6
-rw-r--r--080display.cc4
-rw-r--r--082scenario_screen.cc4
-rw-r--r--087file.cc22
-rw-r--r--091socket.cc22
-rw-r--r--099hardware_checks.cc2
-rw-r--r--html/010vm.cc.html505
-rw-r--r--html/013update_operation.cc.html2
-rw-r--r--html/018type_abbreviations.cc.html2
-rw-r--r--html/020run.cc.html6
-rw-r--r--html/021check_instruction.cc.html2
-rw-r--r--html/022arithmetic.cc.html66
-rw-r--r--html/023boolean.cc.html6
-rw-r--r--html/024jump.cc.html16
-rw-r--r--html/025compare.cc.html36
-rw-r--r--html/026call.cc.html2
-rw-r--r--html/027call_ingredient.cc.html4
-rw-r--r--html/028call_return.cc.html6
-rw-r--r--html/029tools.cc.html2
-rw-r--r--html/030container.cc.html14
-rw-r--r--html/031merge.cc.html14
-rw-r--r--html/032array.cc.html22
-rw-r--r--html/033exclusive_container.cc.html12
-rw-r--r--html/034address.cc.html4
-rw-r--r--html/035lookup.cc.html2
-rw-r--r--html/038new_text.cc.html2
-rw-r--r--html/039location_array.cc.html2
-rw-r--r--html/041jump_target.cc.html4
-rw-r--r--html/042name.cc.html6
-rw-r--r--html/043space.cc.html4
-rw-r--r--html/050scenario.cc.html2
-rw-r--r--html/053recipe_header.cc.html8
-rw-r--r--html/054static_dispatch.cc.html14
-rw-r--r--html/056shape_shifting_recipe.cc.html8
-rw-r--r--html/057immutable.cc.html12
-rw-r--r--html/058to_text.cc.html2
-rw-r--r--html/069hash.cc.html4
-rw-r--r--html/071recipe.cc.html6
-rw-r--r--html/072scheduler.cc.html8
-rw-r--r--html/073wait.cc.html22
-rw-r--r--html/074deep_copy.cc.html6
-rw-r--r--html/080display.cc.html4
-rw-r--r--html/082scenario_screen.cc.html4
-rw-r--r--html/087file.cc.html22
-rw-r--r--html/091socket.cc.html22
-rw-r--r--html/099hardware_checks.cc.html2
80 files changed, 634 insertions, 644 deletions
diff --git a/010vm.cc b/010vm.cc
index 50cb4215..839cd356 100644
--- a/010vm.cc
+++ b/010vm.cc
@@ -606,13 +606,8 @@ string to_string(const recipe& r) {
 string to_original_string(const recipe& r) {
   ostringstream out;
   out << "recipe " << r.name << " [\n";
-  for (int i = 0;  i < SIZE(r.steps);  ++i) {
-    const instruction& inst = r.steps.at(i);
-    if (inst.original_string.empty())
-      out << "  " << to_original_string(r.steps.at(i)) << '\n';
-    else
-      out << "  " << r.steps.at(i).original_string << '\n';
-  }
+  for (int i = 0;  i < SIZE(r.steps);  ++i)
+    out << "  " << to_original_string(r.steps.at(i)) << '\n';
   out << "]\n";
   return out.str();
 }
diff --git a/013update_operation.cc b/013update_operation.cc
index 53ff252a..0468e80d 100644
--- a/013update_operation.cc
+++ b/013update_operation.cc
@@ -13,7 +13,7 @@ void update_instruction_operations(const recipe_ordinal r) {
     instruction& inst = caller.steps.at(index);
     if (inst.is_label) continue;
     if (!contains_key(Recipe_ordinal, inst.name)) {
-      raise << maybe(caller.name) << "instruction '" << inst.name << "' has no recipe in '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller.name) << "instruction '" << inst.name << "' has no recipe in '" << to_original_string(inst) << "'\n" << end();
       continue;
     }
     inst.operation = get(Recipe_ordinal, inst.name);
diff --git a/018type_abbreviations.cc b/018type_abbreviations.cc
index 1e487633..65905702 100644
--- a/018type_abbreviations.cc
+++ b/018type_abbreviations.cc
@@ -171,7 +171,7 @@ void expand_type_abbreviations(const recipe& caller) {
   trace(9991, "transform") << "--- expand type abbreviations in recipe '" << caller.name << "'" << end();
   for (int i = 0;  i < SIZE(caller.steps);  ++i) {
     const instruction& inst = caller.steps.at(i);
-    trace(9991, "transform") << "instruction '" << inst.original_string << end();
+    trace(9991, "transform") << "instruction '" << to_original_string(inst) << end();
     for (long int i = 0;  i < SIZE(inst.ingredients);  ++i) {
       expand_type_abbreviations(inst.ingredients.at(i).type);
       trace(9992, "transform") << "ingredient type after expanding abbreviations: " << names_to_string(inst.ingredients.at(i).type) << end();
diff --git a/020run.cc b/020run.cc
index fdf8244a..084cafbb 100644
--- a/020run.cc
+++ b/020run.cc
@@ -94,7 +94,7 @@ void run_current_routine() {
     //: used by a later layer
     Writing_products_of_instruction = true;
     if (SIZE(products) < SIZE(current_instruction().products)) {
-      raise << SIZE(products) << " vs " << SIZE(current_instruction().products) << ": failed to write to all products in '" << current_instruction().original_string << "'\n" << end();
+      raise << SIZE(products) << " vs " << SIZE(current_instruction().products) << ": failed to write to all products in '" << to_original_string(current_instruction()) << "'\n" << end();
     }
     else {
       for (int i = 0;  i < SIZE(current_instruction().products);  ++i)
@@ -322,11 +322,11 @@ void write_memory(reagent/*copy*/ x, const vector<double>& data) {
   if (is_literal(x)) return;
   // End Preprocess write_memory(x, data)
   if (x.value == 0) {
-    raise << "can't write to location 0 in '" << current_instruction().original_string << "'\n" << end();
+    raise << "can't write to location 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     return;
   }
   if (size_mismatch(x, data)) {
-    raise << maybe(current_recipe_name()) << "size mismatch in storing to '" << x.original_string << "' (" << size_of(x) << " vs " << SIZE(data) << ") at '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "size mismatch in storing to '" << x.original_string << "' (" << size_of(x) << " vs " << SIZE(data) << ") at '" << to_original_string(current_instruction()) << "'\n" << end();
     return;
   }
   // End write_memory(x) Special-cases
diff --git a/021check_instruction.cc b/021check_instruction.cc
index 6b716362..b8aa3663 100644
--- a/021check_instruction.cc
+++ b/021check_instruction.cc
@@ -22,7 +22,7 @@ void check_instruction(const recipe_ordinal r) {
       // Primitive Recipe Checks
       case COPY: {
         if (SIZE(inst.products) > SIZE(inst.ingredients)) {
-          raise << maybe(get(Recipe, r).name) << "too many products in '" << inst.original_string << "'\n" << end();
+          raise << maybe(get(Recipe, r).name) << "too many products in '" << to_original_string(inst) << "'\n" << end();
           break;
         }
         for (int i = 0;  i < SIZE(inst.products);  ++i) {
diff --git a/022arithmetic.cc b/022arithmetic.cc
index 0b842dd4..530541aa 100644
--- a/022arithmetic.cc
+++ b/022arithmetic.cc
@@ -14,7 +14,7 @@ case ADD: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'add' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'add' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -86,7 +86,7 @@ case SUBTRACT: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'subtract' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'subtract' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -142,7 +142,7 @@ case MULTIPLY: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'multiply' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'multiply' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -199,7 +199,7 @@ case DIVIDE: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'divide' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'divide' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -247,15 +247,15 @@ put(Recipe_ordinal, "divide-with-remainder", DIVIDE_WITH_REMAINDER);
 :(before "End Primitive Recipe Checks")
 case DIVIDE_WITH_REMAINDER: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'divide-with-remainder' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'divide-with-remainder' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0)) || !is_mu_number(inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'divide-with-remainder' requires number ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'divide-with-remainder' requires number ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (SIZE(inst.products) > 2) {
-    raise << maybe(get(Recipe, r).name) << "'divide-with-remainder' yields two products in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'divide-with-remainder' yields two products in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   for (int i = 0;  i < SIZE(inst.products);  ++i) {
@@ -273,7 +273,7 @@ case DIVIDE_WITH_REMAINDER: {
   long long int a = static_cast<long long int>(ingredients.at(0).at(0));
   long long int b = static_cast<long long int>(ingredients.at(1).at(0));
   if (b == 0) {
-    raise << maybe(current_recipe_name()) << "divide by zero in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "divide by zero in '" << to_original_string(current_instruction()) << "'\n" << end();
     products.resize(2);
     products.at(0).push_back(0);
     products.at(1).push_back(0);
@@ -331,15 +331,15 @@ put(Recipe_ordinal, "shift-left", SHIFT_LEFT);
 :(before "End Primitive Recipe Checks")
 case SHIFT_LEFT: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'shift-left' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'shift-left' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0)) || !is_mu_number(inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'shift-left' requires number ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'shift-left' requires number ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'shift-left' yields one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'shift-left' yields one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -355,7 +355,7 @@ case SHIFT_LEFT: {
   int b = static_cast<int>(ingredients.at(1).at(0));
   products.resize(1);
   if (b < 0) {
-    raise << maybe(current_recipe_name()) << "second ingredient can't be negative in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "second ingredient can't be negative in '" << to_original_string(current_instruction()) << "'\n" << end();
     products.at(0).push_back(0);
     break;
   }
@@ -402,15 +402,15 @@ put(Recipe_ordinal, "shift-right", SHIFT_RIGHT);
 :(before "End Primitive Recipe Checks")
 case SHIFT_RIGHT: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'shift-right' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'shift-right' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0)) || !is_mu_number(inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'shift-right' requires number ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'shift-right' requires number ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'shift-right' yields one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'shift-right' yields one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -426,7 +426,7 @@ case SHIFT_RIGHT: {
   int b = static_cast<int>(ingredients.at(1).at(0));
   products.resize(1);
   if (b < 0) {
-    raise << maybe(current_recipe_name()) << "second ingredient can't be negative in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "second ingredient can't be negative in '" << to_original_string(current_instruction()) << "'\n" << end();
     products.at(0).push_back(0);
     break;
   }
@@ -473,15 +473,15 @@ put(Recipe_ordinal, "and-bits", AND_BITS);
 :(before "End Primitive Recipe Checks")
 case AND_BITS: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'and-bits' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'and-bits' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0)) || !is_mu_number(inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'and-bits' requires number ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'and-bits' requires number ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'and-bits' yields one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'and-bits' yields one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -531,15 +531,15 @@ put(Recipe_ordinal, "or-bits", OR_BITS);
 :(before "End Primitive Recipe Checks")
 case OR_BITS: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'or-bits' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'or-bits' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0)) || !is_mu_number(inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'or-bits' requires number ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'or-bits' requires number ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'or-bits' yields one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'or-bits' yields one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -583,15 +583,15 @@ put(Recipe_ordinal, "xor-bits", XOR_BITS);
 :(before "End Primitive Recipe Checks")
 case XOR_BITS: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'xor-bits' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'xor-bits' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0)) || !is_mu_number(inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'xor-bits' requires number ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'xor-bits' requires number ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'xor-bits' yields one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'xor-bits' yields one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -635,15 +635,15 @@ put(Recipe_ordinal, "flip-bits", FLIP_BITS);
 :(before "End Primitive Recipe Checks")
 case FLIP_BITS: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'flip-bits' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'flip-bits' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
-    raise << maybe(get(Recipe, r).name) << "'flip-bits' requires a number ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'flip-bits' requires a number ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'flip-bits' yields one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'flip-bits' yields one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -692,7 +692,7 @@ put(Recipe_ordinal, "round", ROUND);
 :(before "End Primitive Recipe Checks")
 case ROUND: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'round' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'round' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -733,7 +733,7 @@ put(Recipe_ordinal, "truncate", TRUNCATE);
 :(before "End Primitive Recipe Checks")
 case TRUNCATE: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'truncate' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'truncate' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -768,7 +768,7 @@ put(Recipe_ordinal, "square-root", SQUARE_ROOT);
 :(before "End Primitive Recipe Checks")
 case SQUARE_ROOT: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'square-root' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'square-root' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -791,7 +791,7 @@ put(Recipe_ordinal, "character-to-code", CHARACTER_TO_CODE);
 :(before "End Primitive Recipe Checks")
 case CHARACTER_TO_CODE: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'character-to-code' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'character-to-code' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_character(inst.ingredients.at(0))) {
@@ -799,7 +799,7 @@ case CHARACTER_TO_CODE: {
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'character-to-code' requires exactly one product, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'character-to-code' requires exactly one product, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.products.at(0))) {
diff --git a/023boolean.cc b/023boolean.cc
index 89dfc8a5..3d51fd7a 100644
--- a/023boolean.cc
+++ b/023boolean.cc
@@ -13,7 +13,7 @@ case AND: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'and' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'and' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_boolean(inst.products.at(0))) {
@@ -71,7 +71,7 @@ case OR: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'or' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'or' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_boolean(inst.products.at(0))) {
@@ -123,7 +123,7 @@ put(Recipe_ordinal, "not", NOT);
 :(before "End Primitive Recipe Checks")
 case NOT: {
   if (SIZE(inst.products) != SIZE(inst.ingredients)) {
-    raise << "ingredients and products should match in '" << inst.original_string << "'\n" << end();
+    raise << "ingredients and products should match in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   for (int i = 0;  i < SIZE(inst.ingredients);  ++i) {
diff --git a/024jump.cc b/024jump.cc
index 734cfc49..5e345eca 100644
--- a/024jump.cc
+++ b/024jump.cc
@@ -16,11 +16,11 @@ put(Recipe_ordinal, "jump", JUMP);
 :(before "End Primitive Recipe Checks")
 case JUMP: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' should get exactly one ingredient\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' should get exactly one ingredient\n" << end();
     break;
   }
   if (!is_literal(inst.ingredients.at(0))) {
-    raise << maybe(get(Recipe, r).name) << "first ingredient of '" << inst.original_string << "' should be a label or offset, but '" << inst.ingredients.at(0).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(0).type) << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "first ingredient of '" << to_original_string(inst) << "' should be a label or offset, but '" << inst.ingredients.at(0).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(0).type) << "'\n" << end();
     break;
   }
   break;
@@ -55,15 +55,15 @@ put(Recipe_ordinal, "jump-if", JUMP_IF);
 :(before "End Primitive Recipe Checks")
 case JUMP_IF: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' should get exactly two ingredients\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' should get exactly two ingredients\n" << end();
     break;
   }
   if (!is_mu_scalar(inst.ingredients.at(0))) {
-    raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' requires a boolean for its first ingredient, but '" << inst.ingredients.at(0).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(0).type) << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' requires a boolean for its first ingredient, but '" << inst.ingredients.at(0).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(0).type) << "'\n" << end();
     break;
   }
   if (!is_literal(inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' requires a label or offset for its second ingredient, but '" << inst.ingredients.at(1).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(1).type) << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' requires a label or offset for its second ingredient, but '" << inst.ingredients.at(1).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(1).type) << "'\n" << end();
     break;
   }
   // End JUMP_IF Checks
@@ -108,15 +108,15 @@ put(Recipe_ordinal, "jump-unless", JUMP_UNLESS);
 :(before "End Primitive Recipe Checks")
 case JUMP_UNLESS: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' should get exactly two ingredients\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' should get exactly two ingredients\n" << end();
     break;
   }
   if (!is_mu_scalar(inst.ingredients.at(0))) {
-    raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' requires a boolean for its first ingredient, but '" << inst.ingredients.at(0).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(0).type) << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' requires a boolean for its first ingredient, but '" << inst.ingredients.at(0).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(0).type) << "'\n" << end();
     break;
   }
   if (!is_literal(inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' requires a label or offset for its second ingredient, but '" << inst.ingredients.at(1).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(1).type) << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' requires a label or offset for its second ingredient, but '" << inst.ingredients.at(1).name << "' has type '" << names_to_string_without_quotes(inst.ingredients.at(1).type) << "'\n" << end();
     break;
   }
   // End JUMP_UNLESS Checks
diff --git a/025compare.cc b/025compare.cc
index 0c398655..92878208 100644
--- a/025compare.cc
+++ b/025compare.cc
@@ -7,18 +7,18 @@ put(Recipe_ordinal, "equal", EQUAL);
 :(before "End Primitive Recipe Checks")
 case EQUAL: {
   if (SIZE(inst.ingredients) <= 1) {
-    raise << maybe(get(Recipe, r).name) << "'equal' needs at least two ingredients to compare in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'equal' needs at least two ingredients to compare in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   const reagent& exemplar = inst.ingredients.at(0);
   for (int i = /*skip exemplar*/1;  i < SIZE(inst.ingredients);  ++i) {
     if (!types_match(inst.ingredients.at(i), exemplar) && !types_match(exemplar, inst.ingredients.at(i))) {
-      raise << maybe(get(Recipe, r).name) << "'equal' expects ingredients to be all of the same type, but got '" << inst.original_string << "'\n" << end();
+      raise << maybe(get(Recipe, r).name) << "'equal' expects ingredients to be all of the same type, but got '" << to_original_string(inst) << "'\n" << end();
       goto finish_checking_instruction;
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'equal' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'equal' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_boolean(inst.products.at(0))) {
@@ -81,16 +81,16 @@ put(Recipe_ordinal, "not-equal", NOT_EQUAL);
 :(before "End Primitive Recipe Checks")
 case NOT_EQUAL: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'equal' needs two ingredients to compare in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'equal' needs two ingredients to compare in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   const reagent& exemplar = inst.ingredients.at(0);
   if (!types_match(inst.ingredients.at(1), exemplar) && !types_match(exemplar, inst.ingredients.at(1))) {
-    raise << maybe(get(Recipe, r).name) << "'equal' expects ingredients to be all of the same type, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'equal' expects ingredients to be all of the same type, but got '" << to_original_string(inst) << "'\n" << end();
     goto finish_checking_instruction;
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'equal' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'equal' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_boolean(inst.products.at(0))) {
@@ -135,7 +135,7 @@ put(Recipe_ordinal, "greater-than", GREATER_THAN);
 :(before "End Primitive Recipe Checks")
 case GREATER_THAN: {
   if (SIZE(inst.ingredients) <= 1) {
-    raise << maybe(get(Recipe, r).name) << "'greater-than' needs at least two ingredients to compare in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'greater-than' needs at least two ingredients to compare in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   for (int i = 0;  i < SIZE(inst.ingredients);  ++i) {
@@ -145,7 +145,7 @@ case GREATER_THAN: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'greater-than' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'greater-than' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_boolean(inst.products.at(0))) {
@@ -202,7 +202,7 @@ put(Recipe_ordinal, "lesser-than", LESSER_THAN);
 :(before "End Primitive Recipe Checks")
 case LESSER_THAN: {
   if (SIZE(inst.ingredients) <= 1) {
-    raise << maybe(get(Recipe, r).name) << "'lesser-than' needs at least two ingredients to compare in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'lesser-than' needs at least two ingredients to compare in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   for (int i = 0;  i < SIZE(inst.ingredients);  ++i) {
@@ -212,7 +212,7 @@ case LESSER_THAN: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'lesser-than' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'lesser-than' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_boolean(inst.products.at(0))) {
@@ -269,7 +269,7 @@ put(Recipe_ordinal, "greater-or-equal", GREATER_OR_EQUAL);
 :(before "End Primitive Recipe Checks")
 case GREATER_OR_EQUAL: {
   if (SIZE(inst.ingredients) <= 1) {
-    raise << maybe(get(Recipe, r).name) << "'greater-or-equal' needs at least two ingredients to compare in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'greater-or-equal' needs at least two ingredients to compare in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   for (int i = 0;  i < SIZE(inst.ingredients);  ++i) {
@@ -279,7 +279,7 @@ case GREATER_OR_EQUAL: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'greater-or-equal' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'greater-or-equal' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_boolean(inst.products.at(0))) {
@@ -344,7 +344,7 @@ put(Recipe_ordinal, "lesser-or-equal", LESSER_OR_EQUAL);
 :(before "End Primitive Recipe Checks")
 case LESSER_OR_EQUAL: {
   if (SIZE(inst.ingredients) <= 1) {
-    raise << maybe(get(Recipe, r).name) << "'lesser-or-equal' needs at least two ingredients to compare in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'lesser-or-equal' needs at least two ingredients to compare in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   for (int i = 0;  i < SIZE(inst.ingredients);  ++i) {
@@ -354,7 +354,7 @@ case LESSER_OR_EQUAL: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'greater-or-equal' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'greater-or-equal' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_boolean(inst.products.at(0))) {
@@ -419,7 +419,7 @@ put(Recipe_ordinal, "max", MAX);
 :(before "End Primitive Recipe Checks")
 case MAX: {
   if (SIZE(inst.ingredients) <= 1) {
-    raise << maybe(get(Recipe, r).name) << "'max' needs at least two ingredients to compare in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'max' needs at least two ingredients to compare in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   for (int i = 0;  i < SIZE(inst.ingredients);  ++i) {
@@ -429,7 +429,7 @@ case MAX: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'max' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'max' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
@@ -458,7 +458,7 @@ put(Recipe_ordinal, "min", MIN);
 :(before "End Primitive Recipe Checks")
 case MIN: {
   if (SIZE(inst.ingredients) <= 1) {
-    raise << maybe(get(Recipe, r).name) << "'min' needs at least two ingredients to compare in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'min' needs at least two ingredients to compare in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   for (int i = 0;  i < SIZE(inst.ingredients);  ++i) {
@@ -468,7 +468,7 @@ case MIN: {
     }
   }
   if (SIZE(inst.products) > 1) {
-    raise << maybe(get(Recipe, r).name) << "'min' yields exactly one product in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'min' yields exactly one product in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!inst.products.empty() && !is_dummy(inst.products.at(0)) && !is_mu_number(inst.products.at(0))) {
diff --git a/026call.cc b/026call.cc
index 269515cc..dd9db69c 100644
--- a/026call.cc
+++ b/026call.cc
@@ -102,7 +102,7 @@ const instruction& to_instruction(const call& call) {
 :(after "Defined Recipe Checks")
 // not a primitive; check that it's present in the book of recipes
 if (!contains_key(Recipe, inst.operation)) {
-  raise << maybe(get(Recipe, r).name) << "undefined operation in '" << inst.original_string << "'\n" << end();
+  raise << maybe(get(Recipe, r).name) << "undefined operation in '" << to_original_string(inst) << "'\n" << end();
   break;
 }
 :(replace{} "default:" following "End Primitive Recipe Implementations")
diff --git a/027call_ingredient.cc b/027call_ingredient.cc
index 2cf0b38d..ed0b8e5a 100644
--- a/027call_ingredient.cc
+++ b/027call_ingredient.cc
@@ -43,7 +43,7 @@ put(Recipe_ordinal, "next-ingredient", NEXT_INGREDIENT);
 :(before "End Primitive Recipe Checks")
 case NEXT_INGREDIENT: {
   if (!inst.ingredients.empty()) {
-    raise << maybe(get(Recipe, r).name) << "'next-ingredient' didn't expect any ingredients in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'next-ingredient' didn't expect any ingredients in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
@@ -140,7 +140,7 @@ put(Recipe_ordinal, "ingredient", INGREDIENT);
 :(before "End Primitive Recipe Checks")
 case INGREDIENT: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'ingredient' expects exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'ingredient' expects exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_literal(inst.ingredients.at(0)) && !is_mu_number(inst.ingredients.at(0))) {
diff --git a/028call_return.cc b/028call_return.cc
index 2b3b3904..3e547f06 100644
--- a/028call_return.cc
+++ b/028call_return.cc
@@ -93,16 +93,16 @@ void check_types_of_return_instructions(const recipe_ordinal r) {
         if (has_property(return_inst.ingredients.at(i), "same-as-ingredient")) {
           string_tree* tmp = property(return_inst.ingredients.at(i), "same-as-ingredient");
           if (!tmp || !tmp->atom) {
-            raise << maybe(caller.name) << "'same-as-ingredient' metadata should take exactly one value in '" << return_inst.original_string << "'\n" << end();
+            raise << maybe(caller.name) << "'same-as-ingredient' metadata should take exactly one value in '" << to_original_string(return_inst) << "'\n" << end();
             goto finish_return_check;
           }
           int ingredient_index = to_integer(tmp->value);
           if (ingredient_index >= SIZE(caller_instruction.ingredients)) {
-            raise << maybe(caller.name) << "too few ingredients in '" << caller_instruction.original_string << "'\n" << end();
+            raise << maybe(caller.name) << "too few ingredients in '" << to_original_string(caller_instruction) << "'\n" << end();
             goto finish_return_check;
           }
           if (!is_dummy(caller_instruction.products.at(i)) && !is_literal(caller_instruction.ingredients.at(ingredient_index)) && caller_instruction.products.at(i).name != caller_instruction.ingredients.at(ingredient_index).name) {
-            raise << maybe(caller.name) << "'" << caller_instruction.original_string << "' should write to '" << caller_instruction.ingredients.at(ingredient_index).original_string << "' rather than '" << caller_instruction.products.at(i).original_string << "'\n" << end();
+            raise << maybe(caller.name) << "'" << to_original_string(caller_instruction) << "' should write to '" << caller_instruction.ingredients.at(ingredient_index).original_string << "' rather than '" << caller_instruction.products.at(i).original_string << "'\n" << end();
           }
         }
       }
diff --git a/029tools.cc b/029tools.cc
index 474bdc62..249451cb 100644
--- a/029tools.cc
+++ b/029tools.cc
@@ -13,7 +13,7 @@ put(Recipe_ordinal, "trace", TRACE);
 :(before "End Primitive Recipe Checks")
 case TRACE: {
   if (SIZE(inst.ingredients) < 3) {
-    raise << maybe(get(Recipe, r).name) << "'trace' takes three or more ingredients rather than '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'trace' takes three or more ingredients rather than '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
diff --git a/030container.cc b/030container.cc
index 8346a240..4cb147fe 100644
--- a/030container.cc
+++ b/030container.cc
@@ -178,9 +178,9 @@ void compute_container_sizes(const recipe_ordinal r) {
     instruction& inst = caller.steps.at(i);
     trace(9993, "transform") << "- compute container sizes for " << to_string(inst) << end();
     for (int i = 0;  i < SIZE(inst.ingredients);  ++i)
-      compute_container_sizes(inst.ingredients.at(i), " in '"+inst.original_string+"'");
+      compute_container_sizes(inst.ingredients.at(i), " in '"+to_original_string(inst)+"'");
     for (int i = 0;  i < SIZE(inst.products);  ++i)
-      compute_container_sizes(inst.products.at(i), " in '"+inst.original_string+"'");
+      compute_container_sizes(inst.products.at(i), " in '"+to_original_string(inst)+"'");
   }
 }
 
@@ -361,7 +361,7 @@ put(Recipe_ordinal, "get", GET);
 :(before "End Primitive Recipe Checks")
 case GET: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'get' expects exactly 2 ingredients in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'get' expects exactly 2 ingredients in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   reagent/*copy*/ base = inst.ingredients.at(0);  // new copy for every invocation
@@ -407,7 +407,7 @@ case GET: {
   // Update GET base in Run
   int base_address = base.value;
   if (base_address == 0) {
-    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   const type_tree* base_type = base.type;
@@ -509,7 +509,7 @@ put(Recipe_ordinal, "put", PUT);
 :(before "End Primitive Recipe Checks")
 case PUT: {
   if (SIZE(inst.ingredients) != 3) {
-    raise << maybe(get(Recipe, r).name) << "'put' expects exactly 3 ingredients in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'put' expects exactly 3 ingredients in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   reagent/*copy*/ base = inst.ingredients.at(0);
@@ -563,7 +563,7 @@ case PUT: {
   // Update PUT base in Run
   int base_address = base.value;
   if (base_address == 0) {
-    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   const type_tree* base_type = base.type;
@@ -830,7 +830,7 @@ void check_or_set_invalid_types(const recipe_ordinal r) {
 
 void check_or_set_invalid_types(reagent& r, const recipe& caller, const instruction& inst) {
   // Begin check_or_set_invalid_types(r)
-  check_or_set_invalid_types(r.type, maybe(caller.name), "'"+inst.original_string+"'");
+  check_or_set_invalid_types(r.type, maybe(caller.name), "'"+to_original_string(inst)+"'");
 }
 
 void check_or_set_invalid_types(type_tree* type, const string& location_for_error_messages, const string& name_for_error_messages) {
diff --git a/031merge.cc b/031merge.cc
index 3faee8d8..4e4e4e34 100644
--- a/031merge.cc
+++ b/031merge.cc
@@ -119,7 +119,7 @@ void check_merge_calls(const recipe_ordinal r) {
     const instruction& inst = caller.steps.at(i);
     if (inst.name != "merge") continue;
     if (SIZE(inst.products) != 1) {
-      raise << maybe(caller.name) << "'merge' should yield a single product in '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller.name) << "'merge' should yield a single product in '" << to_original_string(inst) << "'\n" << end();
       continue;
     }
     reagent/*copy*/ product = inst.products.at(0);
@@ -127,12 +127,12 @@ void check_merge_calls(const recipe_ordinal r) {
     const type_tree* product_base_type = product.type->atom ? product.type : product.type->left;
     assert(product_base_type->atom);
     if (product_base_type->value == 0 || !contains_key(Type, product_base_type->value)) {
-      raise << maybe(caller.name) << "'merge' should yield a container in '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller.name) << "'merge' should yield a container in '" << to_original_string(inst) << "'\n" << end();
       continue;
     }
     const type_info& info = get(Type, product_base_type->value);
     if (info.kind != CONTAINER && info.kind != EXCLUSIVE_CONTAINER) {
-      raise << maybe(caller.name) << "'merge' should yield a container in '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller.name) << "'merge' should yield a container in '" << to_original_string(inst) << "'\n" << end();
       continue;
     }
     check_merge_call(inst.ingredients, product, caller, inst);
@@ -147,7 +147,7 @@ void check_merge_call(const vector<reagent>& ingredients, const reagent& product
     assert(!state.data.empty());
     trace(9999, "transform") << ingredient_index << " vs " << SIZE(ingredients) << end();
     if (ingredient_index >= SIZE(ingredients)) {
-      raise << maybe(caller.name) << "too few ingredients in '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller.name) << "too few ingredients in '" << to_original_string(inst) << "'\n" << end();
       return;
     }
     reagent& container = state.data.top().container;
@@ -170,7 +170,7 @@ void check_merge_call(const vector<reagent>& ingredients, const reagent& product
             state.data.pop();
             if (state.data.empty()) {
               if (ingredient_index < SIZE(ingredients))
-                raise << maybe(caller.name) << "too many ingredients in '" << inst.original_string << "'\n" << end();
+                raise << maybe(caller.name) << "too many ingredients in '" << to_original_string(inst) << "'\n" << end();
               return;
             }
             ++state.data.top().container_element_index;
@@ -186,7 +186,7 @@ void check_merge_call(const vector<reagent>& ingredients, const reagent& product
       // End check_merge_call Special-cases
       default: {
         if (!types_coercible(container, ingredients.at(ingredient_index))) {
-          raise << maybe(caller.name) << "incorrect type of ingredient " << ingredient_index << " in '" << inst.original_string << "'\n" << end();
+          raise << maybe(caller.name) << "incorrect type of ingredient " << ingredient_index << " in '" << to_original_string(inst) << "'\n" << end();
           raise << "  (expected '" << debug_string(container) << "')\n" << end();
           raise << "  (got '" << debug_string(ingredients.at(ingredient_index)) << "')\n" << end();
           return;
@@ -197,7 +197,7 @@ void check_merge_call(const vector<reagent>& ingredients, const reagent& product
           state.data.pop();
           if (state.data.empty()) {
             if (ingredient_index < SIZE(ingredients))
-              raise << maybe(caller.name) << "too many ingredients in '" << inst.original_string << "'\n" << end();
+              raise << maybe(caller.name) << "too many ingredients in '" << to_original_string(inst) << "'\n" << end();
             return;
           }
           ++state.data.top().container_element_index;
diff --git a/032array.cc b/032array.cc
index 7c134bdb..778daa97 100644
--- a/032array.cc
+++ b/032array.cc
@@ -20,7 +20,7 @@ put(Recipe_ordinal, "create-array", CREATE_ARRAY);
 :(before "End Primitive Recipe Checks")
 case CREATE_ARRAY: {
   if (inst.products.empty()) {
-    raise << maybe(get(Recipe, r).name) << "'create-array' needs one product and no ingredients but got '" << inst.original_string << '\n' << end();
+    raise << maybe(get(Recipe, r).name) << "'create-array' needs one product and no ingredients but got '" << to_original_string(inst) << '\n' << end();
     break;
   }
   reagent/*copy*/ product = inst.products.at(0);
@@ -30,13 +30,13 @@ case CREATE_ARRAY: {
     break;
   }
   if (!product.type->right) {
-    raise << maybe(get(Recipe, r).name) << "create array of what? '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "create array of what? '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   // 'create-array' will need to check properties rather than types
   type_tree* array_length_from_type = product.type->right->right;
   if (!array_length_from_type) {
-    raise << maybe(get(Recipe, r).name) << "create array of what size? '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "create array of what size? '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!product.type->right->right->atom)
@@ -320,7 +320,7 @@ put(Recipe_ordinal, "index", INDEX);
 :(before "End Primitive Recipe Checks")
 case INDEX: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'index' expects exactly 2 ingredients in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'index' expects exactly 2 ingredients in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   reagent/*copy*/ base = inst.ingredients.at(0);
@@ -353,14 +353,14 @@ case INDEX: {
   int base_address = base.value;
   trace(9998, "run") << "base address is " << base_address << end();
   if (base_address == 0) {
-    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   reagent/*copy*/ index = current_instruction().ingredients.at(1);
   // Update INDEX index in Run
   vector<double> index_val(read_memory(index));
   if (index_val.at(0) < 0 || index_val.at(0) >= get_or_insert(Memory, base_address)) {
-    raise << maybe(current_recipe_name()) << "invalid index " << no_scientific(index_val.at(0)) << " in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "invalid index " << no_scientific(index_val.at(0)) << " in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   reagent/*local*/ element;
@@ -506,7 +506,7 @@ put(Recipe_ordinal, "put-index", PUT_INDEX);
 :(before "End Primitive Recipe Checks")
 case PUT_INDEX: {
   if (SIZE(inst.ingredients) != 3) {
-    raise << maybe(get(Recipe, r).name) << "'put-index' expects exactly 3 ingredients in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'put-index' expects exactly 3 ingredients in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   reagent/*copy*/ base = inst.ingredients.at(0);
@@ -543,14 +543,14 @@ case PUT_INDEX: {
   // Update PUT_INDEX base in Run
   int base_address = base.value;
   if (base_address == 0) {
-    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   reagent/*copy*/ index = current_instruction().ingredients.at(1);
   // Update PUT_INDEX index in Run
   vector<double> index_val(read_memory(index));
   if (index_val.at(0) < 0 || index_val.at(0) >= get_or_insert(Memory, base_address)) {
-    raise << maybe(current_recipe_name()) << "invalid index " << no_scientific(index_val.at(0)) << " in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "invalid index " << no_scientific(index_val.at(0)) << " in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   int address = base_address + /*skip length*/1 + index_val.at(0)*size_of(array_element(base.type));
@@ -625,7 +625,7 @@ put(Recipe_ordinal, "length", LENGTH);
 :(before "End Primitive Recipe Checks")
 case LENGTH: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'length' expects exactly 2 ingredients in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'length' expects exactly 2 ingredients in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   reagent/*copy*/ array = inst.ingredients.at(0);
@@ -641,7 +641,7 @@ case LENGTH: {
   reagent/*copy*/ array = current_instruction().ingredients.at(0);
   // Update LENGTH array in Run
   if (array.value == 0) {
-    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   products.resize(1);
diff --git a/033exclusive_container.cc b/033exclusive_container.cc
index 6eac8f47..eee16643 100644
--- a/033exclusive_container.cc
+++ b/033exclusive_container.cc
@@ -100,7 +100,7 @@ put(Recipe_ordinal, "maybe-convert", MAYBE_CONVERT);
 case MAYBE_CONVERT: {
   const recipe& caller = get(Recipe, r);
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(caller.name) << "'maybe-convert' expects exactly 2 ingredients in '" << inst.original_string << "'\n" << end();
+    raise << maybe(caller.name) << "'maybe-convert' expects exactly 2 ingredients in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   reagent/*copy*/ base = inst.ingredients.at(0);
@@ -121,7 +121,7 @@ case MAYBE_CONVERT: {
   }
   if (inst.products.empty()) break;
   if (SIZE(inst.products) != 2) {
-    raise << maybe(caller.name) << "'maybe-convert' expects exactly 2 products in '" << inst.original_string << "'\n" << end();
+    raise << maybe(caller.name) << "'maybe-convert' expects exactly 2 products in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   reagent/*copy*/ product = inst.products.at(0);
@@ -129,7 +129,7 @@ case MAYBE_CONVERT: {
   reagent& offset = inst.ingredients.at(1);
   populate_value(offset);
   if (offset.value >= SIZE(get(Type, base_type->value).elements)) {
-    raise << maybe(caller.name) << "invalid tag " << offset.value << " in '" << inst.original_string << '\n' << end();
+    raise << maybe(caller.name) << "invalid tag " << offset.value << " in '" << to_original_string(inst) << '\n' << end();
     break;
   }
   const reagent& variant = variant_type(base, offset.value);
@@ -151,7 +151,7 @@ case MAYBE_CONVERT: {
   // Update MAYBE_CONVERT base in Run
   int base_address = base.value;
   if (base_address == 0) {
-    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   int tag = current_instruction().ingredients.at(1).value;
@@ -322,13 +322,13 @@ case EXCLUSIVE_CONTAINER: {
   if (types_strictly_match(container, inst.ingredients.at(ingredient_index)))
     return;
   if (!is_literal(ingredients.at(ingredient_index))) {
-    raise << maybe(caller.name) << "ingredient " << ingredient_index << " of 'merge' should be a literal, for the tag of exclusive-container '" << container_info.name << "' in '" << inst.original_string << "'\n" << end();
+    raise << maybe(caller.name) << "ingredient " << ingredient_index << " of 'merge' should be a literal, for the tag of exclusive-container '" << container_info.name << "' in '" << to_original_string(inst) << "'\n" << end();
     return;
   }
   reagent/*copy*/ ingredient = ingredients.at(ingredient_index);  // unnecessary copy just to keep this function from modifying caller
   populate_value(ingredient);
   if (ingredient.value >= SIZE(container_info.elements)) {
-    raise << maybe(caller.name) << "invalid tag at " << ingredient_index << " for '" << container_info.name << "' in '" << inst.original_string << "'\n" << end();
+    raise << maybe(caller.name) << "invalid tag at " << ingredient_index << " for '" << container_info.name << "' in '" << to_original_string(inst) << "'\n" << end();
     return;
   }
   const reagent& variant = variant_type(container, ingredient.value);
diff --git a/034address.cc b/034address.cc
index 27f7af87..65b97dc0 100644
--- a/034address.cc
+++ b/034address.cc
@@ -163,7 +163,7 @@ put(Recipe_ordinal, "new", NEW);
 case NEW: {
   const recipe& caller = get(Recipe, r);
   if (inst.ingredients.empty() || SIZE(inst.ingredients) > 2) {
-    raise << maybe(caller.name) << "'new' requires one or two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(caller.name) << "'new' requires one or two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   // End NEW Check Special-cases
@@ -181,7 +181,7 @@ case NEW: {
     break;
   }
   if (!product_of_new_is_valid(inst)) {
-    raise << maybe(caller.name) << "product of 'new' has incorrect type: '" << inst.original_string << "'\n" << end();
+    raise << maybe(caller.name) << "product of 'new' has incorrect type: '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
diff --git a/035lookup.cc b/035lookup.cc
index 33b842f8..842ba01d 100644
--- a/035lookup.cc
+++ b/035lookup.cc
@@ -108,7 +108,7 @@ void lookup_memory_core(reagent& x, bool check_for_null) {
   }
   else if (check_for_null) {
     if (Current_routine)
-      raise << "tried to /lookup 0 in '" << current_instruction().original_string << "'\n" << end();
+      raise << "tried to /lookup 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     else
       raise << "tried to /lookup 0\n" << end();
   }
diff --git a/038new_text.cc b/038new_text.cc
index 95a394c1..cf7c01b5 100644
--- a/038new_text.cc
+++ b/038new_text.cc
@@ -170,7 +170,7 @@ put(Recipe_ordinal, "assert", ASSERT);
 :(before "End Primitive Recipe Checks")
 case ASSERT: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'assert' takes exactly two ingredients rather than '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'assert' takes exactly two ingredients rather than '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_scalar(inst.ingredients.at(0))) {
diff --git a/039location_array.cc b/039location_array.cc
index 648ebad6..1c12d316 100644
--- a/039location_array.cc
+++ b/039location_array.cc
@@ -6,7 +6,7 @@ put(Recipe_ordinal, "to-location-array", TO_LOCATION_ARRAY);
 case TO_LOCATION_ARRAY: {
   const recipe& caller = get(Recipe, r);
   if (!is_address_of_array_of_numbers(inst.products.at(0))) {
-    raise << maybe(caller.name) << "product of 'to-location-array' has incorrect type: '" << inst.original_string << "'\n" << end();
+    raise << maybe(caller.name) << "product of 'to-location-array' has incorrect type: '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
diff --git a/041jump_target.cc b/041jump_target.cc
index 426ef2ad..ada1eaf5 100644
--- a/041jump_target.cc
+++ b/041jump_target.cc
@@ -49,14 +49,14 @@ void transform_labels(const recipe_ordinal r) {
     instruction& inst = get(Recipe, r).steps.at(i);
     if (inst.name == "jump") {
       if (inst.ingredients.empty()) {
-        raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' expects an ingredient but got 0\n" << end();
+        raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' expects an ingredient but got 0\n" << end();
         return;
       }
       replace_offset(inst.ingredients.at(0), offset, i, r);
     }
     if (inst.name == "jump-if" || inst.name == "jump-unless") {
       if (SIZE(inst.ingredients) < 2) {
-        raise << maybe(get(Recipe, r).name) << "'" << inst.original_string << "' expects 2 ingredients but got " << SIZE(inst.ingredients) << '\n' << end();
+        raise << maybe(get(Recipe, r).name) << "'" << to_original_string(inst) << "' expects 2 ingredients but got " << SIZE(inst.ingredients) << '\n' << end();
         return;
       }
       replace_offset(inst.ingredients.at(1), offset, i, r);
diff --git a/042name.cc b/042name.cc
index ad16449f..34e3efe0 100644
--- a/042name.cc
+++ b/042name.cc
@@ -98,7 +98,7 @@ void transform_names(const recipe_ordinal r) {
 
 bool is_disqualified(/*mutable*/ reagent& x, const instruction& inst, const string& recipe_name) {
   if (!x.type) {
-    raise << maybe(recipe_name) << "missing type for '" << x.original_string << "' in '" << inst.original_string << "'\n" << end();
+    raise << maybe(recipe_name) << "missing type for '" << x.original_string << "' in '" << to_original_string(inst) << "'\n" << end();
     // missing-type Error 1
     return true;
   }
@@ -232,7 +232,7 @@ $error: 0
 :(before "End update GET offset_value in Check")
 else {
   if (!offset.initialized) {
-    raise << maybe(get(Recipe, r).name) << "uninitialized offset '" << offset.name << "' in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "uninitialized offset '" << offset.name << "' in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   offset_value = offset.value;
@@ -303,7 +303,7 @@ def main [
 // convert variant names of exclusive containers
 if (inst.name == "maybe-convert") {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "exactly 2 ingredients expected in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "exactly 2 ingredients expected in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   assert(is_literal(inst.ingredients.at(1)));
diff --git a/043space.cc b/043space.cc
index 0cd16151..90bb3350 100644
--- a/043space.cc
+++ b/043space.cc
@@ -62,7 +62,7 @@ void absolutize(reagent& x) {
   if (is_raw(x) || is_dummy(x)) return;
   if (x.name == "default-space") return;
   if (!x.initialized)
-    raise << current_instruction().original_string << ": reagent not initialized: '" << x.original_string << "'\n" << end();
+    raise << to_original_string(current_instruction()) << ": reagent not initialized: '" << x.original_string << "'\n" << end();
   x.set_value(address(x.value, space_base(x)));
   x.properties.push_back(pair<string, string_tree*>("raw", NULL));
   assert(is_raw(x));
@@ -311,7 +311,7 @@ bool caller_uses_product(int product_index) {
 
 void rewrite_default_space_instruction(instruction& curr) {
   if (!curr.ingredients.empty())
-    raise << "'" << curr.original_string << "' can't take any ingredients\n" << end();
+    raise << "'" << to_original_string(curr) << "' can't take any ingredients\n" << end();
   curr.name = "new";
   curr.ingredients.push_back(reagent("location:type"));
   curr.ingredients.push_back(reagent("number-of-locals:literal"));
diff --git a/050scenario.cc b/050scenario.cc
index c1eeecf2..e926a8a2 100644
--- a/050scenario.cc
+++ b/050scenario.cc
@@ -757,7 +757,7 @@ put(Recipe_ordinal, "check-trace-count-for-label", CHECK_TRACE_COUNT_FOR_LABEL);
 :(before "End Primitive Recipe Checks")
 case CHECK_TRACE_COUNT_FOR_LABEL: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'check-trace-count-for-label' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'check-trace-count-for-label' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
diff --git a/053recipe_header.cc b/053recipe_header.cc
index 9128f3bb..54bc452e 100644
--- a/053recipe_header.cc
+++ b/053recipe_header.cc
@@ -297,7 +297,7 @@ void check_calls_against_header(const recipe_ordinal r) {
     for (long int i = 0;  i < min(SIZE(inst.ingredients), SIZE(callee.ingredients));  ++i) {
       // ingredients coerced from call to callee
       if (!types_coercible(callee.ingredients.at(i), inst.ingredients.at(i))) {
-        raise << maybe(caller.name) << "ingredient " << i << " has the wrong type at '" << inst.original_string << "'\n" << end();
+        raise << maybe(caller.name) << "ingredient " << i << " has the wrong type at '" << to_original_string(inst) << "'\n" << end();
         raise << "  ['" << to_string(callee.ingredients.at(i).type) << "' vs '" << to_string(inst.ingredients.at(i).type) << "']\n" << end();
       }
     }
@@ -305,7 +305,7 @@ void check_calls_against_header(const recipe_ordinal r) {
       if (is_dummy(inst.products.at(i))) continue;
       // products coerced from callee to call
       if (!types_coercible(inst.products.at(i), callee.products.at(i))) {
-        raise << maybe(caller.name) << "product " << i << " has the wrong type at '" << inst.original_string << "'\n" << end();
+        raise << maybe(caller.name) << "product " << i << " has the wrong type at '" << to_original_string(inst) << "'\n" << end();
         raise << "  ['" << to_string(inst.products.at(i).type) << "' vs '" << to_string(callee.products.at(i).type) << "']\n" << end();
       }
     }
@@ -337,12 +337,12 @@ void check_return_instructions_against_header(const recipe_ordinal r) {
     const instruction& inst = caller_recipe.steps.at(i);
     if (inst.name != "reply" && inst.name != "return") continue;
     if (SIZE(caller_recipe.products) != SIZE(inst.ingredients)) {
-      raise << maybe(caller_recipe.name) << "replied with the wrong number of products at '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller_recipe.name) << "replied with the wrong number of products at '" << to_original_string(inst) << "'\n" << end();
       continue;
     }
     for (int i = 0;  i < SIZE(caller_recipe.products);  ++i) {
       if (!types_match(caller_recipe.products.at(i), inst.ingredients.at(i)))
-        raise << maybe(caller_recipe.name) << "replied with the wrong type at '" << inst.original_string << "'\n" << end();
+        raise << maybe(caller_recipe.name) << "replied with the wrong type at '" << to_original_string(inst) << "'\n" << end();
     }
   }
 }
diff --git a/054static_dispatch.cc b/054static_dispatch.cc
index a78411e9..e73ab3f5 100644
--- a/054static_dispatch.cc
+++ b/054static_dispatch.cc
@@ -167,7 +167,7 @@ void resolve_ambiguous_calls(const recipe_ordinal r) {
     instruction& inst = caller_recipe.steps.at(index);
     if (inst.is_label) continue;
     if (non_ghost_size(get_or_insert(Recipe_variants, inst.name)) == 0) continue;
-    trace(9992, "transform") << "instruction " << inst.original_string << end();
+    trace(9992, "transform") << "instruction " << to_original_string(inst) << end();
     Resolve_stack.push_front(call(r));
     Resolve_stack.front().running_step_index = index;
     string new_name = best_variant(inst, caller_recipe);
@@ -202,11 +202,11 @@ string best_variant(instruction& inst, const recipe& caller_recipe) {
   // error messages
   if (get(Recipe_ordinal, inst.name) >= MAX_PRIMITIVE_RECIPES) {  // we currently don't check types for primitive variants
     if (SIZE(variants) == 1) {
-      raise << maybe(caller_recipe.name) << "types don't match in call for '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller_recipe.name) << "types don't match in call for '" << to_original_string(inst) << "'\n" << end();
       raise << "  which tries to call '" << original_header_label(get(Recipe, variants.at(0))) << "'\n" << end();
     }
     else {
-      raise << maybe(caller_recipe.name) << "failed to find a matching call for '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller_recipe.name) << "failed to find a matching call for '" << to_original_string(inst) << "'\n" << end();
       raise << "  available variants are:\n" << end();
       for (int i = 0;  i < SIZE(variants);  ++i)
         raise << "    " << original_header_label(get(Recipe, variants.at(i))) << '\n' << end();
@@ -215,17 +215,17 @@ string best_variant(instruction& inst, const recipe& caller_recipe) {
       const recipe& specializer_recipe = get(Recipe, p->running_recipe);
       const instruction& specializer_inst = specializer_recipe.steps.at(p->running_step_index);
       if (specializer_recipe.name != "interactive")
-        raise << "  (from '" << specializer_inst.original_string << "' in " << specializer_recipe.name << ")\n" << end();
+        raise << "  (from '" << to_original_string(specializer_inst) << "' in " << specializer_recipe.name << ")\n" << end();
       else
-        raise << "  (from '" << specializer_inst.original_string << "')\n" << end();
+        raise << "  (from '" << to_original_string(specializer_inst) << "')\n" << end();
       // One special-case to help with the rewrite_stash transform. (cross-layer)
       if (specializer_inst.products.at(0).name.find("stash_") == 0) {
         instruction stash_inst;
         if (next_stash(*p, &stash_inst)) {
           if (specializer_recipe.name != "interactive")
-            raise << "  (part of '" << stash_inst.original_string << "' in " << specializer_recipe.name << ")\n" << end();
+            raise << "  (part of '" << to_original_string(stash_inst) << "' in " << specializer_recipe.name << ")\n" << end();
           else
-            raise << "  (part of '" << stash_inst.original_string << "')\n" << end();
+            raise << "  (part of '" << to_original_string(stash_inst) << "')\n" << end();
         }
       }
     }
diff --git a/056shape_shifting_recipe.cc b/056shape_shifting_recipe.cc
index 1cafbb13..7f74136d 100644
--- a/056shape_shifting_recipe.cc
+++ b/056shape_shifting_recipe.cc
@@ -263,9 +263,9 @@ void compute_type_names(recipe& variant) {
     instruction& inst = variant.steps.at(i);
     trace(9993, "transform") << "  instruction: " << to_string(inst) << end();
     for (int in = 0;  in < SIZE(inst.ingredients);  ++in)
-      save_or_deduce_type_name(inst.ingredients.at(in), type_names, variant, " in '" + inst.original_string + "'");
+      save_or_deduce_type_name(inst.ingredients.at(in), type_names, variant, " in '" + to_original_string(inst) + "'");
     for (int out = 0;  out < SIZE(inst.products);  ++out)
-      save_or_deduce_type_name(inst.products.at(out), type_names, variant, " in '" + inst.original_string + "'");
+      save_or_deduce_type_name(inst.products.at(out), type_names, variant, " in '" + to_original_string(inst) + "'");
   }
 }
 
@@ -316,7 +316,7 @@ void accumulate_type_ingredients(const type_tree* exemplar_type, const type_tree
     // probably a bug in mu
     // todo: make this smarter; only flag an error if exemplar_type contains some *new* type ingredient
     raise << maybe(exemplar.name) << "missing type ingredient for " << exemplar_reagent.original_string << '\n' << end();
-    raise << "  (called from '" << call_instruction.original_string << "')\n" << end();
+    raise << "  (called from '" << to_original_string(call_instruction) << "')\n" << end();
     return;
   }
   if (!exemplar_type->atom && exemplar_type->right == NULL && !refinement_type->atom && refinement_type->right != NULL) {
@@ -338,7 +338,7 @@ void accumulate_type_ingredients(const type_tree* exemplar_type, const type_tree
       }
       else {
         if (!deeply_equal_type_names(get(mappings, exemplar_type->name), curr_refinement_type)) {
-          raise << maybe(caller_recipe.name) << "no call found for '" << call_instruction.original_string << "'\n" << end();
+          raise << maybe(caller_recipe.name) << "no call found for '" << to_original_string(call_instruction) << "'\n" << end();
           *error = true;
           delete curr_refinement_type;
           return;
diff --git a/057immutable.cc b/057immutable.cc
index ef7dc464..57d36ceb 100644
--- a/057immutable.cc
+++ b/057immutable.cc
@@ -442,9 +442,9 @@ void check_immutable_ingredient_in_instruction(const instruction& inst, const se
         && current_ingredient_and_aliases.find(inst.products.at(i)) != current_ingredient_and_aliases.end()) {
       string current_product_name = inst.products.at(i).name;
       if (current_product_name == original_ingredient_name)
-        raise << maybe(caller.name) << "cannot modify '" << current_product_name << "' in instruction '" << inst.original_string << "' because it's an ingredient of recipe " << caller.name << " but not also a product\n" << end();
+        raise << maybe(caller.name) << "cannot modify '" << current_product_name << "' in instruction '" << to_original_string(inst) << "' because it's an ingredient of recipe " << caller.name << " but not also a product\n" << end();
       else
-        raise << maybe(caller.name) << "cannot modify '" << current_product_name << "' in instruction '" << inst.original_string << "' because that would modify " << original_ingredient_name << " which is an ingredient of recipe " << caller.name << " but not also a product\n" << end();
+        raise << maybe(caller.name) << "cannot modify '" << current_product_name << "' in instruction '" << to_original_string(inst) << "' because that would modify " << original_ingredient_name << " which is an ingredient of recipe " << caller.name << " but not also a product\n" << end();
       return;
     }
   }
@@ -465,9 +465,9 @@ void check_immutable_ingredient_in_instruction(const instruction& inst, const se
       if (inst.operation == PUT || inst.operation == PUT_INDEX) {
         if (current_ingredient_index == 0) {
           if (current_ingredient_name == original_ingredient_name)
-            raise << maybe(caller.name) << "cannot modify '" << current_ingredient_name << "' in instruction '" << inst.original_string << "' because it's an ingredient of recipe " << caller.name << " but not also a product\n" << end();
+            raise << maybe(caller.name) << "cannot modify '" << current_ingredient_name << "' in instruction '" << to_original_string(inst) << "' because it's an ingredient of recipe " << caller.name << " but not also a product\n" << end();
           else
-            raise << maybe(caller.name) << "cannot modify '" << current_ingredient_name << "' in instruction '" << inst.original_string << "' because that would modify '" << original_ingredient_name << "' which is an ingredient of recipe " << caller.name << " but not also a product\n" << end();
+            raise << maybe(caller.name) << "cannot modify '" << current_ingredient_name << "' in instruction '" << to_original_string(inst) << "' because that would modify '" << original_ingredient_name << "' which is an ingredient of recipe " << caller.name << " but not also a product\n" << end();
         }
       }
     }
@@ -475,9 +475,9 @@ void check_immutable_ingredient_in_instruction(const instruction& inst, const se
       // defined recipe
       if (is_modified_in_recipe(inst.operation, current_ingredient_index, caller)) {
         if (current_ingredient_name == original_ingredient_name)
-          raise << maybe(caller.name) << "cannot modify '" << current_ingredient_name << "' in instruction '" << inst.original_string << "' because it's an ingredient of recipe " << caller.name << " but not also a product\n" << end();
+          raise << maybe(caller.name) << "cannot modify '" << current_ingredient_name << "' in instruction '" << to_original_string(inst) << "' because it's an ingredient of recipe " << caller.name << " but not also a product\n" << end();
         else
-          raise << maybe(caller.name) << "cannot modify '" << current_ingredient_name << "' in instruction '" << inst.original_string << "' because that would modify '" << original_ingredient_name << "' which is an ingredient of recipe " << caller.name << " but not also a product\n" << end();
+          raise << maybe(caller.name) << "cannot modify '" << current_ingredient_name << "' in instruction '" << to_original_string(inst) << "' because that would modify '" << original_ingredient_name << "' which is an ingredient of recipe " << caller.name << " but not also a product\n" << end();
       }
     }
   }
diff --git a/058to_text.cc b/058to_text.cc
index e845218c..8c86e36c 100644
--- a/058to_text.cc
+++ b/058to_text.cc
@@ -9,7 +9,7 @@ put(Recipe_ordinal, "to-text", TO_TEXT);
 :(before "End Primitive Recipe Checks")
 case TO_TEXT: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'to-text' requires a single ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'to-text' requires a single ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   // can handle any type
diff --git a/069hash.cc b/069hash.cc
index 94cfcda9..51925e3d 100644
--- a/069hash.cc
+++ b/069hash.cc
@@ -15,7 +15,7 @@ put(Recipe_ordinal, "hash", HASH);
 :(before "End Primitive Recipe Checks")
 case HASH: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'hash' takes exactly one ingredient rather than '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'hash' takes exactly one ingredient rather than '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
@@ -351,7 +351,7 @@ put(Recipe_ordinal, "hash_old", HASH_OLD);
 :(before "End Primitive Recipe Checks")
 case HASH_OLD: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'hash_old' takes exactly one ingredient rather than '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'hash_old' takes exactly one ingredient rather than '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_text(inst.ingredients.at(0))) {
diff --git a/071recipe.cc b/071recipe.cc
index f4256996..1a145ed6 100644
--- a/071recipe.cc
+++ b/071recipe.cc
@@ -169,14 +169,14 @@ void check_indirect_calls_against_header(const recipe_ordinal r) {
     if (is_indirect_call_with_ingredients(inst.operation)) {
       for (long int i = /*skip callee*/1;  i < min(SIZE(inst.ingredients), SIZE(callee_header.ingredients)+/*skip callee*/1);  ++i) {
         if (!types_coercible(callee_header.ingredients.at(i-/*skip callee*/1), inst.ingredients.at(i)))
-          raise << maybe(caller.name) << "ingredient " << i-/*skip callee*/1 << " has the wrong type at '" << inst.original_string << "'\n" << end();
+          raise << maybe(caller.name) << "ingredient " << i-/*skip callee*/1 << " has the wrong type at '" << to_original_string(inst) << "'\n" << end();
       }
     }
     if (is_indirect_call_with_products(inst.operation)) {
       for (long int i = 0;  i < min(SIZE(inst.products), SIZE(callee_header.products));  ++i) {
         if (is_dummy(inst.products.at(i))) continue;
         if (!types_coercible(callee_header.products.at(i), inst.products.at(i)))
-          raise << maybe(caller.name) << "product " << i << " has the wrong type at '" << inst.original_string << "'\n" << end();
+          raise << maybe(caller.name) << "product " << i << " has the wrong type at '" << to_original_string(inst) << "'\n" << end();
       }
     }
   }
@@ -356,7 +356,7 @@ check_for_recipe_literals(inst, get(Recipe, r));
 void check_for_recipe_literals(const instruction& inst, const recipe& caller) {
   for (int i = 0;  i < SIZE(inst.ingredients);  ++i) {
     if (is_mu_recipe(inst.ingredients.at(i))) {
-      raise << maybe(caller.name) << "missing type for '" << inst.ingredients.at(i).original_string << "' in '" << inst.original_string << "'\n" << end();
+      raise << maybe(caller.name) << "missing type for '" << inst.ingredients.at(i).original_string << "' in '" << to_original_string(inst) << "'\n" << end();
       if (is_present_in_ingredients(caller, inst.ingredients.at(i).name))
         raise << "  did you forget 'load-ingredients'?\n" << end();
     }
diff --git a/072scheduler.cc b/072scheduler.cc
index 3dad805c..945e0402 100644
--- a/072scheduler.cc
+++ b/072scheduler.cc
@@ -458,7 +458,7 @@ put(Recipe_ordinal, "routine-state", ROUTINE_STATE);
 :(before "End Primitive Recipe Checks")
 case ROUTINE_STATE: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'routine-state' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'routine-state' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -491,7 +491,7 @@ put(Recipe_ordinal, "stop", STOP);
 :(before "End Primitive Recipe Checks")
 case STOP: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'stop' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'stop' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -589,7 +589,7 @@ put(Recipe_ordinal, "limit-time", LIMIT_TIME);
 :(before "End Primitive Recipe Checks")
 case LIMIT_TIME: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'limit-time' requires exactly two ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'limit-time' requires exactly two ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -627,7 +627,7 @@ put(Recipe_ordinal, "number-of-instructions", NUMBER_OF_INSTRUCTIONS);
 :(before "End Primitive Recipe Checks")
 case NUMBER_OF_INSTRUCTIONS: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'number-of-instructions' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'number-of-instructions' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
diff --git a/073wait.cc b/073wait.cc
index 06bf7ec0..a223e7bd 100644
--- a/073wait.cc
+++ b/073wait.cc
@@ -78,7 +78,7 @@ put(Recipe_ordinal, "wait-for-reset-then-set", WAIT_FOR_RESET_THEN_SET);
 :(before "End Primitive Recipe Checks")
 case WAIT_FOR_RESET_THEN_SET: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'wait-for-reset-then-set' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'wait-for-reset-then-set' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_location(inst.ingredients.at(0))) {
@@ -109,7 +109,7 @@ put(Recipe_ordinal, "reset", RESET);
 :(before "End Primitive Recipe Checks")
 case RESET: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'reset' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'reset' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_location(inst.ingredients.at(0))) {
@@ -158,7 +158,7 @@ put(Recipe_ordinal, "get-location", GET_LOCATION);
 :(before "End Primitive Recipe Checks")
 case GET_LOCATION: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'get-location' expects exactly 2 ingredients in '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'get-location' expects exactly 2 ingredients in '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   reagent/*copy*/ base = inst.ingredients.at(0);
@@ -203,7 +203,7 @@ case GET_LOCATION: {
   canonize(base);
   int base_address = base.value;
   if (base_address == 0) {
-    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "tried to access location 0 in '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   const type_tree* base_type = get_base_type(base.type);
@@ -325,7 +325,7 @@ put(Recipe_ordinal, "wait-for-routine", WAIT_FOR_ROUTINE);
 :(before "End Primitive Recipe Checks")
 case WAIT_FOR_ROUTINE: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'wait-for-routine' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'wait-for-routine' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -337,7 +337,7 @@ case WAIT_FOR_ROUTINE: {
 :(before "End Primitive Recipe Implementations")
 case WAIT_FOR_ROUTINE: {
   if (ingredients.at(0).at(0) == Current_routine->id) {
-    raise << maybe(current_recipe_name()) << "routine can't wait for itself! '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "routine can't wait for itself! '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   Current_routine->state = WAITING;
@@ -424,7 +424,7 @@ put(Recipe_ordinal, "current-routine-is-blocked", CURRENT_ROUTINE_IS_BLOCKED);
 :(before "End Primitive Recipe Checks")
 case CURRENT_ROUTINE_IS_BLOCKED: {
   if (!inst.ingredients.empty()) {
-    raise << maybe(get(Recipe, r).name) << "'current-routine-is-blocked' should have no ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'current-routine-is-blocked' should have no ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
@@ -442,7 +442,7 @@ put(Recipe_ordinal, "current-routine-is-unblocked", CURRENT_ROUTINE_IS_UNBLOCKED
 :(before "End Primitive Recipe Checks")
 case CURRENT_ROUTINE_IS_UNBLOCKED: {
   if (!inst.ingredients.empty()) {
-    raise << maybe(get(Recipe, r).name) << "'current-routine-is-unblocked' should have no ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'current-routine-is-unblocked' should have no ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
@@ -487,7 +487,7 @@ put(Recipe_ordinal, "wait-for-routine-to-block", WAIT_FOR_ROUTINE_TO_BLOCK);
 :(before "End Primitive Recipe Checks")
 case WAIT_FOR_ROUTINE_TO_BLOCK: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'wait-for-routine-to-block' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'wait-for-routine-to-block' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -499,7 +499,7 @@ case WAIT_FOR_ROUTINE_TO_BLOCK: {
 :(before "End Primitive Recipe Implementations")
 case WAIT_FOR_ROUTINE_TO_BLOCK: {
   if (ingredients.at(0).at(0) == Current_routine->id) {
-    raise << maybe(current_recipe_name()) << "routine can't wait for itself! '" << current_instruction().original_string << "'\n" << end();
+    raise << maybe(current_recipe_name()) << "routine can't wait for itself! '" << to_original_string(current_instruction()) << "'\n" << end();
     break;
   }
   Current_routine->state = WAITING;
@@ -536,7 +536,7 @@ put(Recipe_ordinal, "restart", RESTART);
 :(before "End Primitive Recipe Checks")
 case RESTART: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'restart' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'restart' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
diff --git a/074deep_copy.cc b/074deep_copy.cc
index 0579098f..cc3a3424 100644
--- a/074deep_copy.cc
+++ b/074deep_copy.cc
@@ -195,15 +195,15 @@ put(Recipe_ordinal, "deep-copy", DEEP_COPY);
 :(before "End Primitive Recipe Checks")
 case DEEP_COPY: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'deep-copy' takes exactly one ingredient rather than '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'deep-copy' takes exactly one ingredient rather than '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'deep-copy' takes exactly one ingredient rather than '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'deep-copy' takes exactly one ingredient rather than '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!types_strictly_match(inst.ingredients.at(0), inst.products.at(0))) {
-    raise << maybe(get(Recipe, r).name) << "'deep-copy' requires its ingredient and product to be the same type, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'deep-copy' requires its ingredient and product to be the same type, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
diff --git a/080display.cc b/080display.cc
index b17fc974..4b1c3344 100644
--- a/080display.cc
+++ b/080display.cc
@@ -90,7 +90,7 @@ put(Recipe_ordinal, "print-character-to-display", PRINT_CHARACTER_TO_DISPLAY);
 :(before "End Primitive Recipe Checks")
 case PRINT_CHARACTER_TO_DISPLAY: {
   if (inst.ingredients.empty()) {
-    raise << maybe(get(Recipe, r).name) << "'print-character-to-display' requires at least one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'print-character-to-display' requires at least one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -172,7 +172,7 @@ put(Recipe_ordinal, "move-cursor-on-display", MOVE_CURSOR_ON_DISPLAY);
 :(before "End Primitive Recipe Checks")
 case MOVE_CURSOR_ON_DISPLAY: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'move-cursor-on-display' requires two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'move-cursor-on-display' requires two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
diff --git a/082scenario_screen.cc b/082scenario_screen.cc
index e2fe16e5..dff695d7 100644
--- a/082scenario_screen.cc
+++ b/082scenario_screen.cc
@@ -188,7 +188,7 @@ put(Recipe_ordinal, "screen-should-contain", SCREEN_SHOULD_CONTAIN);
 :(before "End Primitive Recipe Checks")
 case SCREEN_SHOULD_CONTAIN: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'screen-should-contain' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'screen-should-contain' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_literal_text(inst.ingredients.at(0))) {
@@ -212,7 +212,7 @@ put(Recipe_ordinal, "screen-should-contain-in-color", SCREEN_SHOULD_CONTAIN_IN_C
 :(before "End Primitive Recipe Checks")
 case SCREEN_SHOULD_CONTAIN_IN_COLOR: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'screen-should-contain-in-color' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'screen-should-contain-in-color' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
diff --git a/087file.cc b/087file.cc
index 402d8bde..44da9b02 100644
--- a/087file.cc
+++ b/087file.cc
@@ -16,7 +16,7 @@ put(Recipe_ordinal, "$open-file-for-reading", _OPEN_FILE_FOR_READING);
 :(before "End Primitive Recipe Checks")
 case _OPEN_FILE_FOR_READING: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$open-file-for-reading' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$open-file-for-reading' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_text(inst.ingredients.at(0))) {
@@ -24,7 +24,7 @@ case _OPEN_FILE_FOR_READING: {
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$open-file-for-reading' requires exactly one product, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$open-file-for-reading' requires exactly one product, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.products.at(0))) {
@@ -51,7 +51,7 @@ put(Recipe_ordinal, "$open-file-for-writing", _OPEN_FILE_FOR_WRITING);
 :(before "End Primitive Recipe Checks")
 case _OPEN_FILE_FOR_WRITING: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$open-file-for-writing' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$open-file-for-writing' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_text(inst.ingredients.at(0))) {
@@ -59,7 +59,7 @@ case _OPEN_FILE_FOR_WRITING: {
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$open-file-for-writing' requires exactly one product, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$open-file-for-writing' requires exactly one product, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.products.at(0))) {
@@ -85,7 +85,7 @@ put(Recipe_ordinal, "$read-from-file", _READ_FROM_FILE);
 :(before "End Primitive Recipe Checks")
 case _READ_FROM_FILE: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$read-from-file' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$read-from-file' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -93,7 +93,7 @@ case _READ_FROM_FILE: {
     break;
   }
   if (SIZE(inst.products) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'$read-from-file' requires exactly two products, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$read-from-file' requires exactly two products, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_character(inst.products.at(0))) {
@@ -149,7 +149,7 @@ put(Recipe_ordinal, "$write-to-file", _WRITE_TO_FILE);
 :(before "End Primitive Recipe Checks")
 case _WRITE_TO_FILE: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'$write-to-file' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$write-to-file' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -161,7 +161,7 @@ case _WRITE_TO_FILE: {
     break;
   }
   if (!inst.products.empty()) {
-    raise << maybe(get(Recipe, r).name) << "'$write-to-file' writes to no products, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$write-to-file' writes to no products, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
@@ -197,7 +197,7 @@ put(Recipe_ordinal, "$close-file", _CLOSE_FILE);
 :(before "End Primitive Recipe Checks")
 case _CLOSE_FILE: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$close-file' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$close-file' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -205,11 +205,11 @@ case _CLOSE_FILE: {
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$close-file' requires exactly one product, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$close-file' requires exactly one product, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (inst.products.at(0).name != inst.ingredients.at(0).name) {
-    raise << maybe(get(Recipe, r).name) << "'$close-file' requires its product to be the same as its ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$close-file' requires its product to be the same as its ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
diff --git a/091socket.cc b/091socket.cc
index 111b8d8a..7b6ca5b1 100644
--- a/091socket.cc
+++ b/091socket.cc
@@ -17,7 +17,7 @@ put(Recipe_ordinal, "$open-client-socket", _OPEN_CLIENT_SOCKET);
 :(before "End Primitive Recipe Checks")
 case _OPEN_CLIENT_SOCKET: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'$open-client-socket' requires exactly two ingredients, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$open-client-socket' requires exactly two ingredients, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_text(inst.ingredients.at(0))) {
@@ -29,7 +29,7 @@ case _OPEN_CLIENT_SOCKET: {
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$open-client-socket' requires exactly one product, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$open-client-socket' requires exactly one product, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.products.at(0))) {
@@ -80,7 +80,7 @@ put(Recipe_ordinal, "$open-server-socket", _OPEN_SERVER_SOCKET);
 :(before "End Primitive Recipe Checks")
 case _OPEN_SERVER_SOCKET: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$open-server-socket' requires exactly one ingredient (the port to listen for requests on), but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$open-server-socket' requires exactly one ingredient (the port to listen for requests on), but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -88,7 +88,7 @@ case _OPEN_SERVER_SOCKET: {
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$open-server-socket' requires exactly one product, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$open-server-socket' requires exactly one product, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.products.at(0))) {
@@ -142,7 +142,7 @@ put(Recipe_ordinal, "$accept", _ACCEPT);
 :(before "End Primitive Recipe Checks")
 case _ACCEPT: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$accept' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$accept' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -150,7 +150,7 @@ case _ACCEPT: {
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$accept' requires exactly one product, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$accept' requires exactly one product, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.products.at(0))) {
@@ -191,7 +191,7 @@ put(Recipe_ordinal, "$read-from-socket", _READ_FROM_SOCKET);
 :(before "End Primitive Recipe Checks")
 case _READ_FROM_SOCKET: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$read-from-socket' requires exactly one ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$read-from-socket' requires exactly one ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -200,7 +200,7 @@ case _READ_FROM_SOCKET: {
   }
   int nprod = SIZE(inst.products);
   if (nprod == 0 || nprod > 4) {
-    raise << maybe(get(Recipe, r).name) << "'$read-from-socket' requires 1-4 products, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$read-from-socket' requires 1-4 products, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_character(inst.products.at(0))) {
@@ -284,7 +284,7 @@ put(Recipe_ordinal, "$write-to-socket", _WRITE_TO_SOCKET);
 :(before "End Primitive Recipe Checks")
 case _WRITE_TO_SOCKET: {
   if (SIZE(inst.ingredients) != 2) {
-    raise << maybe(get(Recipe, r).name) << "'$write-to-socket' requires exactly two ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$write-to-socket' requires exactly two ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   break;
@@ -312,7 +312,7 @@ put(Recipe_ordinal, "$close-socket", _CLOSE_SOCKET);
 :(before "End Primitive Recipe Checks")
 case _CLOSE_SOCKET: {
   if (SIZE(inst.ingredients) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$close-socket' requires exactly two ingredient, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$close-socket' requires exactly two ingredient, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (!is_mu_number(inst.ingredients.at(0))) {
@@ -320,7 +320,7 @@ case _CLOSE_SOCKET: {
     break;
   }
   if (SIZE(inst.products) != 1) {
-    raise << maybe(get(Recipe, r).name) << "'$close-socket' requires exactly one product, but got '" << inst.original_string << "'\n" << end();
+    raise << maybe(get(Recipe, r).name) << "'$close-socket' requires exactly one product, but got '" << to_original_string(inst) << "'\n" << end();
     break;
   }
   if (inst.products.at(0).name != inst.ingredients.at(0).name) {
diff --git a/099hardware_checks.cc b/099hardware_checks.cc
index a3dd6de5..42ad271f 100644
--- a/099hardware_checks.cc
+++ b/099hardware_checks.cc
@@ -48,7 +48,7 @@ void check_for_misuse_of_real_hardware(const recipe_ordinal r) {
       const reagent& expected_ing = callee.ingredients.at(i);
       for (int j = 0;  j < SIZE(Real_hardware_types);  ++j) {
         if (*Real_hardware_types.at(j) == *expected_ing.type)
-          raise << maybe(caller.name) << "'" << inst.original_string << "': only 'main' can pass 0 into a " << to_string(expected_ing.type) << '\n' << end();
+          raise << maybe(caller.name) << "'" << to_original_string(inst) << "': only 'main' can pass 0 into a " << to_string(expected_ing.type) << '\n' << end();
       }
     }
   }
diff --git a/html/010vm.cc.html b/html/010vm.cc.html
index a450da45..d2b6ed56 100644
--- a/html/010vm.cc.html
+++ b/html/010vm.cc.html
@@ -670,267 +670,262 @@ if ('onhashchange' in window) {
 <span id="L606" class="LineNr">606 </span>string to_original_string<span class="Delimiter">(</span><span class="Normal">const</span> recipe&amp; r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L607" class="LineNr">607 </span>  ostringstream out<span class="Delimiter">;</span>
 <span id="L608" class="LineNr">608 </span>  out &lt;&lt; <span class="Constant">&quot;recipe &quot;</span> &lt;&lt; r<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; [</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
-<span id="L609" class="LineNr">609 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>r<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L610" class="LineNr">610 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
-<span id="L611" class="LineNr">611 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>original_string<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
-<span id="L612" class="LineNr">612 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;  &quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L613" class="LineNr">613 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span>
-<span id="L614" class="LineNr">614 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;  &quot;</span> &lt;&lt; r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L615" class="LineNr">615 </span>  <span class="Delimiter">}</span>
-<span id="L616" class="LineNr">616 </span>  out &lt;&lt; <span class="Constant">&quot;]</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
-<span id="L617" class="LineNr">617 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L618" class="LineNr">618 </span><span class="Delimiter">}</span>
-<span id="L619" class="LineNr">619 </span>
-<span id="L620" class="LineNr">620 </span>string debug_string<span class="Delimiter">(</span><span class="Normal">const</span> recipe&amp; x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L621" class="LineNr">621 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L622" class="LineNr">622 </span>  out &lt;&lt; <span class="Constant">&quot;- <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; x<span class="Delimiter">.</span>name &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L623" class="LineNr">623 </span>  <span class="Comment">// Begin debug_string(recipe x)</span>
-<span id="L624" class="LineNr">624 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>  index &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>x<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L625" class="LineNr">625 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = x<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
-<span id="L626" class="LineNr">626 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;inst: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L627" class="LineNr">627 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;  ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
-<span id="L628" class="LineNr">628 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
-<span id="L629" class="LineNr">629 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;    &quot;</span> &lt;&lt; debug_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L630" class="LineNr">630 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;  products</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
-<span id="L631" class="LineNr">631 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
-<span id="L632" class="LineNr">632 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;    &quot;</span> &lt;&lt; debug_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L633" class="LineNr">633 </span>  <span class="Delimiter">}</span>
-<span id="L634" class="LineNr">634 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L635" class="LineNr">635 </span><span class="Delimiter">}</span>
-<span id="L636" class="LineNr">636 </span>
-<span id="L637" class="LineNr">637 </span>string to_original_string<span class="Delimiter">(</span><span class="Normal">const</span> instruction&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L638" class="LineNr">638 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span>label<span class="Delimiter">;</span>
-<span id="L639" class="LineNr">639 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>original_string<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span>original_string<span class="Delimiter">;</span>
-<span id="L640" class="LineNr">640 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L641" class="LineNr">641 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L642" class="LineNr">642 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;, &quot;</span><span class="Delimiter">;</span>
-<span id="L643" class="LineNr">643 </span>  <span class="Conceal">¦</span> out &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string<span class="Delimiter">;</span>
-<span id="L644" class="LineNr">644 </span>  <span class="Delimiter">}</span>
-<span id="L645" class="LineNr">645 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> out &lt;&lt; <span class="Constant">&quot; &lt;- &quot;</span><span class="Delimiter">;</span>
-<span id="L646" class="LineNr">646 </span>  out &lt;&lt; inst<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
-<span id="L647" class="LineNr">647 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
-<span id="L648" class="LineNr">648 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L649" class="LineNr">649 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;, &quot;</span><span class="Delimiter">;</span>
-<span id="L650" class="LineNr">650 </span>  <span class="Conceal">¦</span> out &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string<span class="Delimiter">;</span>
-<span id="L651" class="LineNr">651 </span>  <span class="Delimiter">}</span>
-<span id="L652" class="LineNr">652 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L653" class="LineNr">653 </span><span class="Delimiter">}</span>
-<span id="L654" class="LineNr">654 </span>
-<span id="L655" class="LineNr">655 </span>string <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> instruction&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L656" class="LineNr">656 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span>label<span class="Delimiter">;</span>
-<span id="L657" class="LineNr">657 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L658" class="LineNr">658 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L659" class="LineNr">659 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;, &quot;</span><span class="Delimiter">;</span>
-<span id="L660" class="LineNr">660 </span>  <span class="Conceal">¦</span> out &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
-<span id="L661" class="LineNr">661 </span>  <span class="Delimiter">}</span>
-<span id="L662" class="LineNr">662 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> out &lt;&lt; <span class="Constant">&quot; &lt;- &quot;</span><span class="Delimiter">;</span>
-<span id="L663" class="LineNr">663 </span>  out &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
-<span id="L664" class="LineNr">664 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L665" class="LineNr">665 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;, &quot;</span><span class="Delimiter">;</span>
-<span id="L666" class="LineNr">666 </span>  <span class="Conceal">¦</span> out &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
-<span id="L667" class="LineNr">667 </span>  <span class="Delimiter">}</span>
-<span id="L668" class="LineNr">668 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L669" class="LineNr">669 </span><span class="Delimiter">}</span>
-<span id="L670" class="LineNr">670 </span>
-<span id="L671" class="LineNr">671 </span>string <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L672" class="LineNr">672 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>is_dummy<span class="Delimiter">(</span>r<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">&quot;_&quot;</span><span class="Delimiter">;</span>
-<span id="L673" class="LineNr">673 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L674" class="LineNr">674 </span>  out &lt;&lt; <span class="Constant">&quot;{&quot;</span><span class="Delimiter">;</span>
-<span id="L675" class="LineNr">675 </span>  out &lt;&lt; r<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">);</span>
-<span id="L676" class="LineNr">676 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L677" class="LineNr">677 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>r<span class="Delimiter">.</span>properties<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
-<span id="L678" class="LineNr">678 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;, </span><span class="cSpecial">\&quot;</span><span class="Constant">&quot;</span> &lt;&lt; r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>first &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\&quot;</span><span class="Constant">: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second<span class="Delimiter">);</span>
-<span id="L679" class="LineNr">679 </span>  <span class="Delimiter">}</span>
-<span id="L680" class="LineNr">680 </span>  out &lt;&lt; <span class="Constant">&quot;}&quot;</span><span class="Delimiter">;</span>
-<span id="L681" class="LineNr">681 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L609" class="LineNr">609 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>r<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
+<span id="L610" class="LineNr">610 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;  &quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+<span id="L611" class="LineNr">611 </span>  out &lt;&lt; <span class="Constant">&quot;]</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
+<span id="L612" class="LineNr">612 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L613" class="LineNr">613 </span><span class="Delimiter">}</span>
+<span id="L614" class="LineNr">614 </span>
+<span id="L615" class="LineNr">615 </span>string debug_string<span class="Delimiter">(</span><span class="Normal">const</span> recipe&amp; x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L616" class="LineNr">616 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L617" class="LineNr">617 </span>  out &lt;&lt; <span class="Constant">&quot;- <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; x<span class="Delimiter">.</span>name &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+<span id="L618" class="LineNr">618 </span>  <span class="Comment">// Begin debug_string(recipe x)</span>
+<span id="L619" class="LineNr">619 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>  index &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>x<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L620" class="LineNr">620 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = x<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
+<span id="L621" class="LineNr">621 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;inst: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+<span id="L622" class="LineNr">622 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;  ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
+<span id="L623" class="LineNr">623 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
+<span id="L624" class="LineNr">624 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;    &quot;</span> &lt;&lt; debug_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+<span id="L625" class="LineNr">625 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;  products</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
+<span id="L626" class="LineNr">626 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
+<span id="L627" class="LineNr">627 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;    &quot;</span> &lt;&lt; debug_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+<span id="L628" class="LineNr">628 </span>  <span class="Delimiter">}</span>
+<span id="L629" class="LineNr">629 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L630" class="LineNr">630 </span><span class="Delimiter">}</span>
+<span id="L631" class="LineNr">631 </span>
+<span id="L632" class="LineNr">632 </span>string to_original_string<span class="Delimiter">(</span><span class="Normal">const</span> instruction&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L633" class="LineNr">633 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span>label<span class="Delimiter">;</span>
+<span id="L634" class="LineNr">634 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>original_string<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span>original_string<span class="Delimiter">;</span>
+<span id="L635" class="LineNr">635 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L636" class="LineNr">636 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L637" class="LineNr">637 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;, &quot;</span><span class="Delimiter">;</span>
+<span id="L638" class="LineNr">638 </span>  <span class="Conceal">¦</span> out &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string<span class="Delimiter">;</span>
+<span id="L639" class="LineNr">639 </span>  <span class="Delimiter">}</span>
+<span id="L640" class="LineNr">640 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> out &lt;&lt; <span class="Constant">&quot; &lt;- &quot;</span><span class="Delimiter">;</span>
+<span id="L641" class="LineNr">641 </span>  out &lt;&lt; inst<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
+<span id="L642" class="LineNr">642 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
+<span id="L643" class="LineNr">643 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L644" class="LineNr">644 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;, &quot;</span><span class="Delimiter">;</span>
+<span id="L645" class="LineNr">645 </span>  <span class="Conceal">¦</span> out &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string<span class="Delimiter">;</span>
+<span id="L646" class="LineNr">646 </span>  <span class="Delimiter">}</span>
+<span id="L647" class="LineNr">647 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L648" class="LineNr">648 </span><span class="Delimiter">}</span>
+<span id="L649" class="LineNr">649 </span>
+<span id="L650" class="LineNr">650 </span>string <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> instruction&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L651" class="LineNr">651 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span>label<span class="Delimiter">;</span>
+<span id="L652" class="LineNr">652 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L653" class="LineNr">653 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L654" class="LineNr">654 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;, &quot;</span><span class="Delimiter">;</span>
+<span id="L655" class="LineNr">655 </span>  <span class="Conceal">¦</span> out &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
+<span id="L656" class="LineNr">656 </span>  <span class="Delimiter">}</span>
+<span id="L657" class="LineNr">657 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> out &lt;&lt; <span class="Constant">&quot; &lt;- &quot;</span><span class="Delimiter">;</span>
+<span id="L658" class="LineNr">658 </span>  out &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
+<span id="L659" class="LineNr">659 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L660" class="LineNr">660 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;, &quot;</span><span class="Delimiter">;</span>
+<span id="L661" class="LineNr">661 </span>  <span class="Conceal">¦</span> out &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
+<span id="L662" class="LineNr">662 </span>  <span class="Delimiter">}</span>
+<span id="L663" class="LineNr">663 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L664" class="LineNr">664 </span><span class="Delimiter">}</span>
+<span id="L665" class="LineNr">665 </span>
+<span id="L666" class="LineNr">666 </span>string <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L667" class="LineNr">667 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>is_dummy<span class="Delimiter">(</span>r<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">&quot;_&quot;</span><span class="Delimiter">;</span>
+<span id="L668" class="LineNr">668 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L669" class="LineNr">669 </span>  out &lt;&lt; <span class="Constant">&quot;{&quot;</span><span class="Delimiter">;</span>
+<span id="L670" class="LineNr">670 </span>  out &lt;&lt; r<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">);</span>
+<span id="L671" class="LineNr">671 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
+<span id="L672" class="LineNr">672 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>r<span class="Delimiter">.</span>properties<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
+<span id="L673" class="LineNr">673 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;, </span><span class="cSpecial">\&quot;</span><span class="Constant">&quot;</span> &lt;&lt; r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>first &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\&quot;</span><span class="Constant">: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second<span class="Delimiter">);</span>
+<span id="L674" class="LineNr">674 </span>  <span class="Delimiter">}</span>
+<span id="L675" class="LineNr">675 </span>  out &lt;&lt; <span class="Constant">&quot;}&quot;</span><span class="Delimiter">;</span>
+<span id="L676" class="LineNr">676 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L677" class="LineNr">677 </span><span class="Delimiter">}</span>
+<span id="L678" class="LineNr">678 </span>
+<span id="L679" class="LineNr">679 </span><span class="Comment">// special name for ignoring some products</span>
+<span id="L680" class="LineNr">680 </span><span class="Normal">bool</span> is_dummy<span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L681" class="LineNr">681 </span>  <span class="Identifier">return</span> x<span class="Delimiter">.</span>name == <span class="Constant">&quot;_&quot;</span><span class="Delimiter">;</span>
 <span id="L682" class="LineNr">682 </span><span class="Delimiter">}</span>
 <span id="L683" class="LineNr">683 </span>
-<span id="L684" class="LineNr">684 </span><span class="Comment">// special name for ignoring some products</span>
-<span id="L685" class="LineNr">685 </span><span class="Normal">bool</span> is_dummy<span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L686" class="LineNr">686 </span>  <span class="Identifier">return</span> x<span class="Delimiter">.</span>name == <span class="Constant">&quot;_&quot;</span><span class="Delimiter">;</span>
-<span id="L687" class="LineNr">687 </span><span class="Delimiter">}</span>
-<span id="L688" class="LineNr">688 </span>
-<span id="L689" class="LineNr">689 </span>string debug_string<span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L690" class="LineNr">690 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L691" class="LineNr">691 </span>  out &lt;&lt; x<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; x<span class="Delimiter">.</span>value &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; -- &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>x<span class="Delimiter">);</span>
-<span id="L692" class="LineNr">692 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L693" class="LineNr">693 </span><span class="Delimiter">}</span>
-<span id="L694" class="LineNr">694 </span>
-<span id="L695" class="LineNr">695 </span>string <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> string_tree* property<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L696" class="LineNr">696 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!property<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;()&quot;</span><span class="Delimiter">;</span>
-<span id="L697" class="LineNr">697 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L698" class="LineNr">698 </span>  dump<span class="Delimiter">(</span>property<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L699" class="LineNr">699 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L700" class="LineNr">700 </span><span class="Delimiter">}</span>
-<span id="L701" class="LineNr">701 </span>
-<span id="L702" class="LineNr">702 </span><span class="Normal">void</span> dump<span class="Delimiter">(</span><span class="Normal">const</span> string_tree* x<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L703" class="LineNr">703 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L704" class="LineNr">704 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L705" class="LineNr">705 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">'&quot;'</span> &lt;&lt; x<span class="Delimiter">-&gt;</span>value &lt;&lt; <span class="Constant">'&quot;'</span><span class="Delimiter">;</span>
-<span id="L706" class="LineNr">706 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L707" class="LineNr">707 </span>  <span class="Delimiter">}</span>
-<span id="L708" class="LineNr">708 </span>  out &lt;&lt; <span class="Constant">'('</span><span class="Delimiter">;</span>
-<span id="L709" class="LineNr">709 </span>  <span class="Normal">const</span> string_tree* curr = x<span class="Delimiter">;</span>
-<span id="L710" class="LineNr">710 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &amp;&amp; !curr<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L711" class="LineNr">711 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L712" class="LineNr">712 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
-<span id="L713" class="LineNr">713 </span>  <span class="Conceal">¦</span> curr = curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
+<span id="L684" class="LineNr">684 </span>string debug_string<span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L685" class="LineNr">685 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L686" class="LineNr">686 </span>  out &lt;&lt; x<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; x<span class="Delimiter">.</span>value &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; -- &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>x<span class="Delimiter">);</span>
+<span id="L687" class="LineNr">687 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L688" class="LineNr">688 </span><span class="Delimiter">}</span>
+<span id="L689" class="LineNr">689 </span>
+<span id="L690" class="LineNr">690 </span>string <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> string_tree* property<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L691" class="LineNr">691 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!property<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;()&quot;</span><span class="Delimiter">;</span>
+<span id="L692" class="LineNr">692 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L693" class="LineNr">693 </span>  dump<span class="Delimiter">(</span>property<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L694" class="LineNr">694 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L695" class="LineNr">695 </span><span class="Delimiter">}</span>
+<span id="L696" class="LineNr">696 </span>
+<span id="L697" class="LineNr">697 </span><span class="Normal">void</span> dump<span class="Delimiter">(</span><span class="Normal">const</span> string_tree* x<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L698" class="LineNr">698 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L699" class="LineNr">699 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L700" class="LineNr">700 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">'&quot;'</span> &lt;&lt; x<span class="Delimiter">-&gt;</span>value &lt;&lt; <span class="Constant">'&quot;'</span><span class="Delimiter">;</span>
+<span id="L701" class="LineNr">701 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L702" class="LineNr">702 </span>  <span class="Delimiter">}</span>
+<span id="L703" class="LineNr">703 </span>  out &lt;&lt; <span class="Constant">'('</span><span class="Delimiter">;</span>
+<span id="L704" class="LineNr">704 </span>  <span class="Normal">const</span> string_tree* curr = x<span class="Delimiter">;</span>
+<span id="L705" class="LineNr">705 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &amp;&amp; !curr<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L706" class="LineNr">706 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L707" class="LineNr">707 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
+<span id="L708" class="LineNr">708 </span>  <span class="Conceal">¦</span> curr = curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
+<span id="L709" class="LineNr">709 </span>  <span class="Delimiter">}</span>
+<span id="L710" class="LineNr">710 </span>  <span class="Comment">// check for dotted list; should never happen</span>
+<span id="L711" class="LineNr">711 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L712" class="LineNr">712 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;. &quot;</span><span class="Delimiter">;</span>
+<span id="L713" class="LineNr">713 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
 <span id="L714" class="LineNr">714 </span>  <span class="Delimiter">}</span>
-<span id="L715" class="LineNr">715 </span>  <span class="Comment">// check for dotted list; should never happen</span>
-<span id="L716" class="LineNr">716 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L717" class="LineNr">717 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;. &quot;</span><span class="Delimiter">;</span>
-<span id="L718" class="LineNr">718 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L719" class="LineNr">719 </span>  <span class="Delimiter">}</span>
-<span id="L720" class="LineNr">720 </span>  out &lt;&lt; <span class="Constant">')'</span><span class="Delimiter">;</span>
-<span id="L721" class="LineNr">721 </span><span class="Delimiter">}</span>
-<span id="L722" class="LineNr">722 </span>
-<span id="L723" class="LineNr">723 </span>string <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L724" class="LineNr">724 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>type == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;()&quot;</span><span class="Delimiter">;</span>
-<span id="L725" class="LineNr">725 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L726" class="LineNr">726 </span>  dump<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L727" class="LineNr">727 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L728" class="LineNr">728 </span><span class="Delimiter">}</span>
-<span id="L729" class="LineNr">729 </span>
-<span id="L730" class="LineNr">730 </span><span class="Normal">void</span> dump<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* x<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L731" class="LineNr">731 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L732" class="LineNr">732 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L733" class="LineNr">733 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>value<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L734" class="LineNr">734 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L735" class="LineNr">735 </span>  <span class="Delimiter">}</span>
-<span id="L736" class="LineNr">736 </span>  out &lt;&lt; <span class="Constant">'('</span><span class="Delimiter">;</span>
-<span id="L737" class="LineNr">737 </span>  <span class="Normal">const</span> type_tree* curr = x<span class="Delimiter">;</span>
-<span id="L738" class="LineNr">738 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &amp;&amp; !curr<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L739" class="LineNr">739 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L740" class="LineNr">740 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
-<span id="L741" class="LineNr">741 </span>  <span class="Conceal">¦</span> curr = curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
+<span id="L715" class="LineNr">715 </span>  out &lt;&lt; <span class="Constant">')'</span><span class="Delimiter">;</span>
+<span id="L716" class="LineNr">716 </span><span class="Delimiter">}</span>
+<span id="L717" class="LineNr">717 </span>
+<span id="L718" class="LineNr">718 </span>string <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L719" class="LineNr">719 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>type == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;()&quot;</span><span class="Delimiter">;</span>
+<span id="L720" class="LineNr">720 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L721" class="LineNr">721 </span>  dump<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L722" class="LineNr">722 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L723" class="LineNr">723 </span><span class="Delimiter">}</span>
+<span id="L724" class="LineNr">724 </span>
+<span id="L725" class="LineNr">725 </span><span class="Normal">void</span> dump<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* x<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L726" class="LineNr">726 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L727" class="LineNr">727 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L728" class="LineNr">728 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>value<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L729" class="LineNr">729 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L730" class="LineNr">730 </span>  <span class="Delimiter">}</span>
+<span id="L731" class="LineNr">731 </span>  out &lt;&lt; <span class="Constant">'('</span><span class="Delimiter">;</span>
+<span id="L732" class="LineNr">732 </span>  <span class="Normal">const</span> type_tree* curr = x<span class="Delimiter">;</span>
+<span id="L733" class="LineNr">733 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &amp;&amp; !curr<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L734" class="LineNr">734 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L735" class="LineNr">735 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
+<span id="L736" class="LineNr">736 </span>  <span class="Conceal">¦</span> curr = curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
+<span id="L737" class="LineNr">737 </span>  <span class="Delimiter">}</span>
+<span id="L738" class="LineNr">738 </span>  <span class="Comment">// check for dotted list; should never happen</span>
+<span id="L739" class="LineNr">739 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L740" class="LineNr">740 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;. &quot;</span><span class="Delimiter">;</span>
+<span id="L741" class="LineNr">741 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
 <span id="L742" class="LineNr">742 </span>  <span class="Delimiter">}</span>
-<span id="L743" class="LineNr">743 </span>  <span class="Comment">// check for dotted list; should never happen</span>
-<span id="L744" class="LineNr">744 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L745" class="LineNr">745 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;. &quot;</span><span class="Delimiter">;</span>
-<span id="L746" class="LineNr">746 </span>  <span class="Conceal">¦</span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L747" class="LineNr">747 </span>  <span class="Delimiter">}</span>
-<span id="L748" class="LineNr">748 </span>  out &lt;&lt; <span class="Constant">')'</span><span class="Delimiter">;</span>
-<span id="L749" class="LineNr">749 </span><span class="Delimiter">}</span>
-<span id="L750" class="LineNr">750 </span>
-<span id="L751" class="LineNr">751 </span><span class="Normal">void</span> dump<span class="Delimiter">(</span><a href='010vm.cc.html#L123'>type_ordinal</a> type<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L752" class="LineNr">752 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> type<span class="Delimiter">))</span>
-<span id="L753" class="LineNr">753 </span>  <span class="Conceal">¦</span> out &lt;&lt; get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> type<span class="Delimiter">).</span>name<span class="Delimiter">;</span>
-<span id="L754" class="LineNr">754 </span>  <span class="Normal">else</span>
-<span id="L755" class="LineNr">755 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;?&quot;</span> &lt;&lt; type<span class="Delimiter">;</span>
-<span id="L756" class="LineNr">756 </span><span class="Delimiter">}</span>
-<span id="L757" class="LineNr">757 </span>
-<span id="L758" class="LineNr">758 </span>string names_to_string<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L759" class="LineNr">759 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>type == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;()&quot;</span><span class="Delimiter">;</span>  <span class="Comment">// should never happen</span>
-<span id="L760" class="LineNr">760 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L761" class="LineNr">761 </span>  dump_names<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L762" class="LineNr">762 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L763" class="LineNr">763 </span><span class="Delimiter">}</span>
-<span id="L764" class="LineNr">764 </span>
-<span id="L765" class="LineNr">765 </span><span class="Normal">void</span> dump_names<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* x<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L766" class="LineNr">766 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L767" class="LineNr">767 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L768" class="LineNr">768 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">'&quot;'</span> &lt;&lt; x<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">'&quot;'</span><span class="Delimiter">;</span>
-<span id="L769" class="LineNr">769 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L770" class="LineNr">770 </span>  <span class="Delimiter">}</span>
-<span id="L771" class="LineNr">771 </span>  out &lt;&lt; <span class="Constant">'('</span><span class="Delimiter">;</span>
-<span id="L772" class="LineNr">772 </span>  <span class="Normal">const</span> type_tree* curr = x<span class="Delimiter">;</span>
-<span id="L773" class="LineNr">773 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &amp;&amp; !curr<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L774" class="LineNr">774 </span>  <span class="Conceal">¦</span> dump_names<span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L775" class="LineNr">775 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
-<span id="L776" class="LineNr">776 </span>  <span class="Conceal">¦</span> curr = curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
+<span id="L743" class="LineNr">743 </span>  out &lt;&lt; <span class="Constant">')'</span><span class="Delimiter">;</span>
+<span id="L744" class="LineNr">744 </span><span class="Delimiter">}</span>
+<span id="L745" class="LineNr">745 </span>
+<span id="L746" class="LineNr">746 </span><span class="Normal">void</span> dump<span class="Delimiter">(</span><a href='010vm.cc.html#L123'>type_ordinal</a> type<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L747" class="LineNr">747 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> type<span class="Delimiter">))</span>
+<span id="L748" class="LineNr">748 </span>  <span class="Conceal">¦</span> out &lt;&lt; get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> type<span class="Delimiter">).</span>name<span class="Delimiter">;</span>
+<span id="L749" class="LineNr">749 </span>  <span class="Normal">else</span>
+<span id="L750" class="LineNr">750 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;?&quot;</span> &lt;&lt; type<span class="Delimiter">;</span>
+<span id="L751" class="LineNr">751 </span><span class="Delimiter">}</span>
+<span id="L752" class="LineNr">752 </span>
+<span id="L753" class="LineNr">753 </span>string names_to_string<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L754" class="LineNr">754 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>type == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;()&quot;</span><span class="Delimiter">;</span>  <span class="Comment">// should never happen</span>
+<span id="L755" class="LineNr">755 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L756" class="LineNr">756 </span>  dump_names<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L757" class="LineNr">757 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L758" class="LineNr">758 </span><span class="Delimiter">}</span>
+<span id="L759" class="LineNr">759 </span>
+<span id="L760" class="LineNr">760 </span><span class="Normal">void</span> dump_names<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* x<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L761" class="LineNr">761 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L762" class="LineNr">762 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L763" class="LineNr">763 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">'&quot;'</span> &lt;&lt; x<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">'&quot;'</span><span class="Delimiter">;</span>
+<span id="L764" class="LineNr">764 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L765" class="LineNr">765 </span>  <span class="Delimiter">}</span>
+<span id="L766" class="LineNr">766 </span>  out &lt;&lt; <span class="Constant">'('</span><span class="Delimiter">;</span>
+<span id="L767" class="LineNr">767 </span>  <span class="Normal">const</span> type_tree* curr = x<span class="Delimiter">;</span>
+<span id="L768" class="LineNr">768 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &amp;&amp; !curr<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L769" class="LineNr">769 </span>  <span class="Conceal">¦</span> dump_names<span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L770" class="LineNr">770 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
+<span id="L771" class="LineNr">771 </span>  <span class="Conceal">¦</span> curr = curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
+<span id="L772" class="LineNr">772 </span>  <span class="Delimiter">}</span>
+<span id="L773" class="LineNr">773 </span>  <span class="Comment">// check for dotted list; should never happen</span>
+<span id="L774" class="LineNr">774 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L775" class="LineNr">775 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;. &quot;</span><span class="Delimiter">;</span>
+<span id="L776" class="LineNr">776 </span>  <span class="Conceal">¦</span> dump_names<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
 <span id="L777" class="LineNr">777 </span>  <span class="Delimiter">}</span>
-<span id="L778" class="LineNr">778 </span>  <span class="Comment">// check for dotted list; should never happen</span>
-<span id="L779" class="LineNr">779 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L780" class="LineNr">780 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;. &quot;</span><span class="Delimiter">;</span>
-<span id="L781" class="LineNr">781 </span>  <span class="Conceal">¦</span> dump_names<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L782" class="LineNr">782 </span>  <span class="Delimiter">}</span>
-<span id="L783" class="LineNr">783 </span>  out &lt;&lt; <span class="Constant">')'</span><span class="Delimiter">;</span>
-<span id="L784" class="LineNr">784 </span><span class="Delimiter">}</span>
-<span id="L785" class="LineNr">785 </span>
-<span id="L786" class="LineNr">786 </span>string names_to_string_without_quotes<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L787" class="LineNr">787 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>type == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;()&quot;</span><span class="Delimiter">;</span>
-<span id="L788" class="LineNr">788 </span>  ostringstream out<span class="Delimiter">;</span>
-<span id="L789" class="LineNr">789 </span>  dump_names_without_quotes<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L790" class="LineNr">790 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
-<span id="L791" class="LineNr">791 </span><span class="Delimiter">}</span>
-<span id="L792" class="LineNr">792 </span>
-<span id="L793" class="LineNr">793 </span><span class="Normal">void</span> dump_names_without_quotes<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* x<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L794" class="LineNr">794 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L795" class="LineNr">795 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L796" class="LineNr">796 </span>  <span class="Conceal">¦</span> out &lt;&lt; x<span class="Delimiter">-&gt;</span>name<span class="Delimiter">;</span>
-<span id="L797" class="LineNr">797 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L798" class="LineNr">798 </span>  <span class="Delimiter">}</span>
-<span id="L799" class="LineNr">799 </span>  out &lt;&lt; <span class="Constant">'('</span><span class="Delimiter">;</span>
-<span id="L800" class="LineNr">800 </span>  <span class="Normal">const</span> type_tree* curr = x<span class="Delimiter">;</span>
-<span id="L801" class="LineNr">801 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &amp;&amp; !curr<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L802" class="LineNr">802 </span>  <span class="Conceal">¦</span> dump_names_without_quotes<span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L803" class="LineNr">803 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
-<span id="L804" class="LineNr">804 </span>  <span class="Conceal">¦</span> curr = curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
+<span id="L778" class="LineNr">778 </span>  out &lt;&lt; <span class="Constant">')'</span><span class="Delimiter">;</span>
+<span id="L779" class="LineNr">779 </span><span class="Delimiter">}</span>
+<span id="L780" class="LineNr">780 </span>
+<span id="L781" class="LineNr">781 </span>string names_to_string_without_quotes<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L782" class="LineNr">782 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>type == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;()&quot;</span><span class="Delimiter">;</span>
+<span id="L783" class="LineNr">783 </span>  ostringstream out<span class="Delimiter">;</span>
+<span id="L784" class="LineNr">784 </span>  dump_names_without_quotes<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L785" class="LineNr">785 </span>  <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
+<span id="L786" class="LineNr">786 </span><span class="Delimiter">}</span>
+<span id="L787" class="LineNr">787 </span>
+<span id="L788" class="LineNr">788 </span><span class="Normal">void</span> dump_names_without_quotes<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* x<span class="Delimiter">,</span> ostream&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L789" class="LineNr">789 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L790" class="LineNr">790 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L791" class="LineNr">791 </span>  <span class="Conceal">¦</span> out &lt;&lt; x<span class="Delimiter">-&gt;</span>name<span class="Delimiter">;</span>
+<span id="L792" class="LineNr">792 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L793" class="LineNr">793 </span>  <span class="Delimiter">}</span>
+<span id="L794" class="LineNr">794 </span>  out &lt;&lt; <span class="Constant">'('</span><span class="Delimiter">;</span>
+<span id="L795" class="LineNr">795 </span>  <span class="Normal">const</span> type_tree* curr = x<span class="Delimiter">;</span>
+<span id="L796" class="LineNr">796 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &amp;&amp; !curr<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L797" class="LineNr">797 </span>  <span class="Conceal">¦</span> dump_names_without_quotes<span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
+<span id="L798" class="LineNr">798 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">' '</span><span class="Delimiter">;</span>
+<span id="L799" class="LineNr">799 </span>  <span class="Conceal">¦</span> curr = curr<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
+<span id="L800" class="LineNr">800 </span>  <span class="Delimiter">}</span>
+<span id="L801" class="LineNr">801 </span>  <span class="Comment">// check for dotted list; should never happen</span>
+<span id="L802" class="LineNr">802 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L803" class="LineNr">803 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;. &quot;</span><span class="Delimiter">;</span>
+<span id="L804" class="LineNr">804 </span>  <span class="Conceal">¦</span> dump_names_without_quotes<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
 <span id="L805" class="LineNr">805 </span>  <span class="Delimiter">}</span>
-<span id="L806" class="LineNr">806 </span>  <span class="Comment">// check for dotted list; should never happen</span>
-<span id="L807" class="LineNr">807 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L808" class="LineNr">808 </span>  <span class="Conceal">¦</span> out &lt;&lt; <span class="Constant">&quot;. &quot;</span><span class="Delimiter">;</span>
-<span id="L809" class="LineNr">809 </span>  <span class="Conceal">¦</span> dump_names_without_quotes<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
-<span id="L810" class="LineNr">810 </span>  <span class="Delimiter">}</span>
-<span id="L811" class="LineNr">811 </span>  out &lt;&lt; <span class="Constant">')'</span><span class="Delimiter">;</span>
-<span id="L812" class="LineNr">812 </span><span class="Delimiter">}</span>
-<span id="L813" class="LineNr">813 </span>
-<span id="L814" class="LineNr">814 </span><span class="Comment">//: helper to print numbers without excessive precision</span>
-<span id="L815" class="LineNr">815 </span>
-<span id="L816" class="LineNr">816 </span><span class="Delimiter">:(before &quot;End Types&quot;)</span>
-<span id="L817" class="LineNr">817 </span><span class="Normal">struct</span> no_scientific <span class="Delimiter">{</span>
-<span id="L818" class="LineNr">818 </span>  <span class="Normal">double</span> x<span class="Delimiter">;</span>
-<span id="L819" class="LineNr">819 </span>  <span class="Normal">explicit</span> no_scientific<span class="Delimiter">(</span><span class="Normal">double</span> y<span class="Delimiter">)</span> :x<span class="Delimiter">(</span>y<span class="Delimiter">)</span> <span class="Delimiter">{}</span>
-<span id="L820" class="LineNr">820 </span><span class="Delimiter">};</span>
-<span id="L821" class="LineNr">821 </span>
-<span id="L822" class="LineNr">822 </span><span class="Delimiter">:(code)</span>
-<span id="L823" class="LineNr">823 </span>ostream&amp; <span class="Normal">operator</span>&lt;&lt;<span class="Delimiter">(</span>ostream&amp; os<span class="Delimiter">,</span> no_scientific x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L824" class="LineNr">824 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!isfinite<span class="Delimiter">(</span>x<span class="Delimiter">.</span>x<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L825" class="LineNr">825 </span>  <span class="Conceal">¦</span> <span class="Comment">// Infinity or NaN</span>
-<span id="L826" class="LineNr">826 </span>  <span class="Conceal">¦</span> os &lt;&lt; x<span class="Delimiter">.</span>x<span class="Delimiter">;</span>
-<span id="L827" class="LineNr">827 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span> os<span class="Delimiter">;</span>
-<span id="L828" class="LineNr">828 </span>  <span class="Delimiter">}</span>
-<span id="L829" class="LineNr">829 </span>  ostringstream tmp<span class="Delimiter">;</span>
-<span id="L830" class="LineNr">830 </span>  <span class="Comment">// more accurate, but too slow</span>
-<span id="L831" class="LineNr">831 </span><span class="CommentedCode">//?   tmp.precision(308);  // for 64-bit numbers</span>
-<span id="L832" class="LineNr">832 </span>  tmp &lt;&lt; std::fixed &lt;&lt; x<span class="Delimiter">.</span>x<span class="Delimiter">;</span>
-<span id="L833" class="LineNr">833 </span>  os &lt;&lt; trim_floating_point<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
-<span id="L834" class="LineNr">834 </span>  <span class="Identifier">return</span> os<span class="Delimiter">;</span>
-<span id="L835" class="LineNr">835 </span><span class="Delimiter">}</span>
-<span id="L836" class="LineNr">836 </span>
-<span id="L837" class="LineNr">837 </span>string trim_floating_point<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L838" class="LineNr">838 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">;</span>
-<span id="L839" class="LineNr">839 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">'.'</span><span class="Delimiter">)</span> == string::npos<span class="Delimiter">)</span> <span class="Identifier">return</span> in<span class="Delimiter">;</span>
-<span id="L840" class="LineNr">840 </span>  <span class="Normal">int</span> length = <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
-<span id="L841" class="LineNr">841 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>length &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L842" class="LineNr">842 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>length-<span class="Constant">1</span><span class="Delimiter">)</span> != <span class="Constant">'0'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span id="L843" class="LineNr">843 </span>  <span class="Conceal">¦</span> --length<span class="Delimiter">;</span>
-<span id="L844" class="LineNr">844 </span>  <span class="Delimiter">}</span>
-<span id="L845" class="LineNr">845 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>length-<span class="Constant">1</span><span class="Delimiter">)</span> == <span class="Constant">'.'</span><span class="Delimiter">)</span> --length<span class="Delimiter">;</span>
-<span id="L846" class="LineNr">846 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>length == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;0&quot;</span><span class="Delimiter">;</span>
-<span id="L847" class="LineNr">847 </span>  <span class="Identifier">return</span> in<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> length<span class="Delimiter">);</span>
-<span id="L848" class="LineNr">848 </span><span class="Delimiter">}</span>
-<span id="L849" class="LineNr">849 </span>
-<span id="L850" class="LineNr">850 </span><span class="Normal">void</span> test_trim_floating_point<span class="Delimiter">()</span> <span class="Delimiter">{</span>
-<span id="L851" class="LineNr">851 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
-<span id="L852" class="LineNr">852 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;.0&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;0&quot;</span><span class="Delimiter">);</span>
-<span id="L853" class="LineNr">853 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;1.5000&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;1.5&quot;</span><span class="Delimiter">);</span>
-<span id="L854" class="LineNr">854 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;1.000001&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;1.000001&quot;</span><span class="Delimiter">);</span>
-<span id="L855" class="LineNr">855 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;23.000000&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;23&quot;</span><span class="Delimiter">);</span>
-<span id="L856" class="LineNr">856 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;23.0&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;23&quot;</span><span class="Delimiter">);</span>
-<span id="L857" class="LineNr">857 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;23.&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;23&quot;</span><span class="Delimiter">);</span>
-<span id="L858" class="LineNr">858 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;23&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;23&quot;</span><span class="Delimiter">);</span>
-<span id="L859" class="LineNr">859 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;230&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;230&quot;</span><span class="Delimiter">);</span>
-<span id="L860" class="LineNr">860 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;3.000000&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;3&quot;</span><span class="Delimiter">);</span>
-<span id="L861" class="LineNr">861 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;3.0&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;3&quot;</span><span class="Delimiter">);</span>
-<span id="L862" class="LineNr">862 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;3.&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;3&quot;</span><span class="Delimiter">);</span>
-<span id="L863" class="LineNr">863 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;3&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;3&quot;</span><span class="Delimiter">);</span>
-<span id="L864" class="LineNr">864 </span><span class="Delimiter">}</span>
-<span id="L865" class="LineNr">865 </span>
-<span id="L866" class="LineNr">866 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
-<span id="L867" class="LineNr">867 </span><span class="PreProc">#include </span><span class="Constant">&lt;utility&gt;</span>
-<span id="L868" class="LineNr">868 </span><span class="Normal">using</span> std::pair<span class="Delimiter">;</span>
-<span id="L869" class="LineNr">869 </span><span class="PreProc">#include </span><span class="Constant">&lt;math.h&gt;</span>
+<span id="L806" class="LineNr">806 </span>  out &lt;&lt; <span class="Constant">')'</span><span class="Delimiter">;</span>
+<span id="L807" class="LineNr">807 </span><span class="Delimiter">}</span>
+<span id="L808" class="LineNr">808 </span>
+<span id="L809" class="LineNr">809 </span><span class="Comment">//: helper to print numbers without excessive precision</span>
+<span id="L810" class="LineNr">810 </span>
+<span id="L811" class="LineNr">811 </span><span class="Delimiter">:(before &quot;End Types&quot;)</span>
+<span id="L812" class="LineNr">812 </span><span class="Normal">struct</span> no_scientific <span class="Delimiter">{</span>
+<span id="L813" class="LineNr">813 </span>  <span class="Normal">double</span> x<span class="Delimiter">;</span>
+<span id="L814" class="LineNr">814 </span>  <span class="Normal">explicit</span> no_scientific<span class="Delimiter">(</span><span class="Normal">double</span> y<span class="Delimiter">)</span> :x<span class="Delimiter">(</span>y<span class="Delimiter">)</span> <span class="Delimiter">{}</span>
+<span id="L815" class="LineNr">815 </span><span class="Delimiter">};</span>
+<span id="L816" class="LineNr">816 </span>
+<span id="L817" class="LineNr">817 </span><span class="Delimiter">:(code)</span>
+<span id="L818" class="LineNr">818 </span>ostream&amp; <span class="Normal">operator</span>&lt;&lt;<span class="Delimiter">(</span>ostream&amp; os<span class="Delimiter">,</span> no_scientific x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L819" class="LineNr">819 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!isfinite<span class="Delimiter">(</span>x<span class="Delimiter">.</span>x<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<span id="L820" class="LineNr">820 </span>  <span class="Conceal">¦</span> <span class="Comment">// Infinity or NaN</span>
+<span id="L821" class="LineNr">821 </span>  <span class="Conceal">¦</span> os &lt;&lt; x<span class="Delimiter">.</span>x<span class="Delimiter">;</span>
+<span id="L822" class="LineNr">822 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span> os<span class="Delimiter">;</span>
+<span id="L823" class="LineNr">823 </span>  <span class="Delimiter">}</span>
+<span id="L824" class="LineNr">824 </span>  ostringstream tmp<span class="Delimiter">;</span>
+<span id="L825" class="LineNr">825 </span>  <span class="Comment">// more accurate, but too slow</span>
+<span id="L826" class="LineNr">826 </span><span class="CommentedCode">//?   tmp.precision(308);  // for 64-bit numbers</span>
+<span id="L827" class="LineNr">827 </span>  tmp &lt;&lt; std::fixed &lt;&lt; x<span class="Delimiter">.</span>x<span class="Delimiter">;</span>
+<span id="L828" class="LineNr">828 </span>  os &lt;&lt; trim_floating_point<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
+<span id="L829" class="LineNr">829 </span>  <span class="Identifier">return</span> os<span class="Delimiter">;</span>
+<span id="L830" class="LineNr">830 </span><span class="Delimiter">}</span>
+<span id="L831" class="LineNr">831 </span>
+<span id="L832" class="LineNr">832 </span>string trim_floating_point<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L833" class="LineNr">833 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">;</span>
+<span id="L834" class="LineNr">834 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">'.'</span><span class="Delimiter">)</span> == string::npos<span class="Delimiter">)</span> <span class="Identifier">return</span> in<span class="Delimiter">;</span>
+<span id="L835" class="LineNr">835 </span>  <span class="Normal">int</span> length = <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
+<span id="L836" class="LineNr">836 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>length &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L837" class="LineNr">837 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>length-<span class="Constant">1</span><span class="Delimiter">)</span> != <span class="Constant">'0'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+<span id="L838" class="LineNr">838 </span>  <span class="Conceal">¦</span> --length<span class="Delimiter">;</span>
+<span id="L839" class="LineNr">839 </span>  <span class="Delimiter">}</span>
+<span id="L840" class="LineNr">840 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>length-<span class="Constant">1</span><span class="Delimiter">)</span> == <span class="Constant">'.'</span><span class="Delimiter">)</span> --length<span class="Delimiter">;</span>
+<span id="L841" class="LineNr">841 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>length == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;0&quot;</span><span class="Delimiter">;</span>
+<span id="L842" class="LineNr">842 </span>  <span class="Identifier">return</span> in<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> length<span class="Delimiter">);</span>
+<span id="L843" class="LineNr">843 </span><span class="Delimiter">}</span>
+<span id="L844" class="LineNr">844 </span>
+<span id="L845" class="LineNr">845 </span><span class="Normal">void</span> test_trim_floating_point<span class="Delimiter">()</span> <span class="Delimiter">{</span>
+<span id="L846" class="LineNr">846 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
+<span id="L847" class="LineNr">847 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;.0&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;0&quot;</span><span class="Delimiter">);</span>
+<span id="L848" class="LineNr">848 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;1.5000&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;1.5&quot;</span><span class="Delimiter">);</span>
+<span id="L849" class="LineNr">849 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;1.000001&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;1.000001&quot;</span><span class="Delimiter">);</span>
+<span id="L850" class="LineNr">850 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;23.000000&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;23&quot;</span><span class="Delimiter">);</span>
+<span id="L851" class="LineNr">851 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;23.0&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;23&quot;</span><span class="Delimiter">);</span>
+<span id="L852" class="LineNr">852 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;23.&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;23&quot;</span><span class="Delimiter">);</span>
+<span id="L853" class="LineNr">853 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;23&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;23&quot;</span><span class="Delimiter">);</span>
+<span id="L854" class="LineNr">854 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;230&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;230&quot;</span><span class="Delimiter">);</span>
+<span id="L855" class="LineNr">855 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;3.000000&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;3&quot;</span><span class="Delimiter">);</span>
+<span id="L856" class="LineNr">856 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;3.0&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;3&quot;</span><span class="Delimiter">);</span>
+<span id="L857" class="LineNr">857 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;3.&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;3&quot;</span><span class="Delimiter">);</span>
+<span id="L858" class="LineNr">858 </span>  <a href='002test.cc.html#L32'>CHECK_EQ</a><span class="Delimiter">(</span>trim_floating_point<span class="Delimiter">(</span><span class="Constant">&quot;3&quot;</span><span class="Delimiter">),</span> <span class="Constant">&quot;3&quot;</span><span class="Delimiter">);</span>
+<span id="L859" class="LineNr">859 </span><span class="Delimiter">}</span>
+<span id="L860" class="LineNr">860 </span>
+<span id="L861" class="LineNr">861 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
+<span id="L862" class="LineNr">862 </span><span class="PreProc">#include </span><span class="Constant">&lt;utility&gt;</span>
+<span id="L863" class="LineNr">863 </span><span class="Normal">using</span> std::pair<span class="Delimiter">;</span>
+<span id="L864" class="LineNr">864 </span><span class="PreProc">#include </span><span class="Constant">&lt;math.h&gt;</span>
 </pre>
 </body>
 </html>
diff --git a/html/013update_operation.cc.html b/html/013update_operation.cc.html
index 9852aecb..437ffbd7 100644
--- a/html/013update_operation.cc.html
+++ b/html/013update_operation.cc.html
@@ -77,7 +77,7 @@ if ('onhashchange' in window) {
 <span id="L13" class="LineNr">13 </span>  <span class="Conceal">¦</span> instruction&amp; inst = caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
 <span id="L14" class="LineNr">14 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L15" class="LineNr">15 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>name<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L16" class="LineNr">16 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' has no <a href='010vm.cc.html#L19'>recipe</a> in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L16" class="LineNr">16 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' has no <a href='010vm.cc.html#L19'>recipe</a> in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L17" class="LineNr">17 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L18" class="LineNr">18 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L19" class="LineNr">19 </span>  <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>operation = get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>name<span class="Delimiter">);</span>
diff --git a/html/018type_abbreviations.cc.html b/html/018type_abbreviations.cc.html
index 7a686942..b6550542 100644
--- a/html/018type_abbreviations.cc.html
+++ b/html/018type_abbreviations.cc.html
@@ -236,7 +236,7 @@ if ('onhashchange' in window) {
 <span id="L171" class="LineNr">171 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- expand type abbreviations in <a href='010vm.cc.html#L19'>recipe</a> '&quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L172" class="LineNr">172 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
-<span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L175" class="LineNr">175 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L176" class="LineNr">176 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> expand_type_abbreviations<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">);</span>
 <span id="L177" class="LineNr">177 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient type after expanding abbreviations: &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
diff --git a/html/020run.cc.html b/html/020run.cc.html
index 460df2cd..c35f9efa 100644
--- a/html/020run.cc.html
+++ b/html/020run.cc.html
@@ -161,7 +161,7 @@ if ('onhashchange' in window) {
 <span id="L94" class="LineNr"> 94 </span>  <span class="Conceal">¦</span> <span class="Comment">//: used by a later layer</span>
 <span id="L95" class="LineNr"> 95 </span>  <span class="Conceal">¦</span> Writing_products_of_instruction = <span class="Constant">true</span><span class="Delimiter">;</span>
 <span id="L96" class="LineNr"> 96 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>products<span class="Delimiter">)</span> &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>products<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; vs &quot;</span> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;: failed to write to all products in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>products<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; vs &quot;</span> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;: failed to write to all products in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
 <span id="L100" class="LineNr">100 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
@@ -389,11 +389,11 @@ if ('onhashchange' in window) {
 <span id="L322" class="LineNr">322 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>is_literal<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L323" class="LineNr">323 </span>  <span class="Comment">// End Preprocess write_memory(x, data)</span>
 <span id="L324" class="LineNr">324 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>value == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L325" class="LineNr">325 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;can't write to location 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L325" class="LineNr">325 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;can't write to location 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L326" class="LineNr">326 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L327" class="LineNr">327 </span>  <span class="Delimiter">}</span>
 <span id="L328" class="LineNr">328 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>size_mismatch<span class="Delimiter">(</span>x<span class="Delimiter">,</span> data<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L329" class="LineNr">329 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;size mismatch in storing to '&quot;</span> &lt;&lt; x<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' (&quot;</span> &lt;&lt; size_of<span class="Delimiter">(</span>x<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; vs &quot;</span> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;) at '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L329" class="LineNr">329 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;size mismatch in storing to '&quot;</span> &lt;&lt; x<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' (&quot;</span> &lt;&lt; size_of<span class="Delimiter">(</span>x<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; vs &quot;</span> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;) at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L330" class="LineNr">330 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L331" class="LineNr">331 </span>  <span class="Delimiter">}</span>
 <span id="L332" class="LineNr">332 </span>  <span class="Comment">// End write_memory(x) Special-cases</span>
diff --git a/html/021check_instruction.cc.html b/html/021check_instruction.cc.html
index c6d9b584..07182373 100644
--- a/html/021check_instruction.cc.html
+++ b/html/021check_instruction.cc.html
@@ -85,7 +85,7 @@ if ('onhashchange' in window) {
 <span id="L22" class="LineNr"> 22 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// Primitive Recipe Checks</span>
 <span id="L23" class="LineNr"> 23 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">case</span> <a href='010vm.cc.html#L189'>COPY</a>: <span class="Delimiter">{</span>
 <span id="L24" class="LineNr"> 24 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L25" class="LineNr"> 25 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too many products in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L25" class="LineNr"> 25 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too many products in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L26" class="LineNr"> 26 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L27" class="LineNr"> 27 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L28" class="LineNr"> 28 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
diff --git a/html/022arithmetic.cc.html b/html/022arithmetic.cc.html
index 96df7af8..34d451df 100644
--- a/html/022arithmetic.cc.html
+++ b/html/022arithmetic.cc.html
@@ -78,7 +78,7 @@ if ('onhashchange' in window) {
 <span id="L14" class="LineNr"> 14 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L15" class="LineNr"> 15 </span>  <span class="Delimiter">}</span>
 <span id="L16" class="LineNr"> 16 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L17" class="LineNr"> 17 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'add' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L17" class="LineNr"> 17 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'add' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L18" class="LineNr"> 18 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L19" class="LineNr"> 19 </span>  <span class="Delimiter">}</span>
 <span id="L20" class="LineNr"> 20 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -150,7 +150,7 @@ if ('onhashchange' in window) {
 <span id="L86" class="LineNr"> 86 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L87" class="LineNr"> 87 </span>  <span class="Delimiter">}</span>
 <span id="L88" class="LineNr"> 88 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L89" class="LineNr"> 89 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L89" class="LineNr"> 89 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L90" class="LineNr"> 90 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L91" class="LineNr"> 91 </span>  <span class="Delimiter">}</span>
 <span id="L92" class="LineNr"> 92 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -206,7 +206,7 @@ if ('onhashchange' in window) {
 <span id="L142" class="LineNr">142 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L143" class="LineNr">143 </span>  <span class="Delimiter">}</span>
 <span id="L144" class="LineNr">144 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L145" class="LineNr">145 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'multiply' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L145" class="LineNr">145 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'multiply' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L146" class="LineNr">146 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L147" class="LineNr">147 </span>  <span class="Delimiter">}</span>
 <span id="L148" class="LineNr">148 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -263,7 +263,7 @@ if ('onhashchange' in window) {
 <span id="L199" class="LineNr">199 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L200" class="LineNr">200 </span>  <span class="Delimiter">}</span>
 <span id="L201" class="LineNr">201 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L202" class="LineNr">202 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L202" class="LineNr">202 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L203" class="LineNr">203 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L204" class="LineNr">204 </span>  <span class="Delimiter">}</span>
 <span id="L205" class="LineNr">205 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -311,15 +311,15 @@ if ('onhashchange' in window) {
 <span id="L247" class="LineNr">247 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L248" class="LineNr">248 </span><span class="Normal">case</span> DIVIDE_WITH_REMAINDER: <span class="Delimiter">{</span>
 <span id="L249" class="LineNr">249 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L250" class="LineNr">250 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L250" class="LineNr">250 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L251" class="LineNr">251 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L252" class="LineNr">252 </span>  <span class="Delimiter">}</span>
 <span id="L253" class="LineNr">253 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L254" class="LineNr">254 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L254" class="LineNr">254 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L255" class="LineNr">255 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L256" class="LineNr">256 </span>  <span class="Delimiter">}</span>
 <span id="L257" class="LineNr">257 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L258" class="LineNr">258 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' yields two products in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L258" class="LineNr">258 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' yields two products in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L259" class="LineNr">259 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L260" class="LineNr">260 </span>  <span class="Delimiter">}</span>
 <span id="L261" class="LineNr">261 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -337,7 +337,7 @@ if ('onhashchange' in window) {
 <span id="L273" class="LineNr">273 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> a = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
 <span id="L274" class="LineNr">274 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> b = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
 <span id="L275" class="LineNr">275 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>b == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L276" class="LineNr">276 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;divide by zero in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L276" class="LineNr">276 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;divide by zero in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L277" class="LineNr">277 </span>  <span class="Conceal">¦</span> products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
 <span id="L278" class="LineNr">278 </span>  <span class="Conceal">¦</span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L279" class="LineNr">279 </span>  <span class="Conceal">¦</span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -395,15 +395,15 @@ if ('onhashchange' in window) {
 <span id="L331" class="LineNr">331 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L332" class="LineNr">332 </span><span class="Normal">case</span> SHIFT_LEFT: <span class="Delimiter">{</span>
 <span id="L333" class="LineNr">333 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L334" class="LineNr">334 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L334" class="LineNr">334 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L335" class="LineNr">335 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L336" class="LineNr">336 </span>  <span class="Delimiter">}</span>
 <span id="L337" class="LineNr">337 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L338" class="LineNr">338 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L338" class="LineNr">338 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L339" class="LineNr">339 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L340" class="LineNr">340 </span>  <span class="Delimiter">}</span>
 <span id="L341" class="LineNr">341 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L342" class="LineNr">342 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' yields one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L342" class="LineNr">342 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L343" class="LineNr">343 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L344" class="LineNr">344 </span>  <span class="Delimiter">}</span>
 <span id="L345" class="LineNr">345 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -419,7 +419,7 @@ if ('onhashchange' in window) {
 <span id="L355" class="LineNr">355 </span>  <span class="Normal">int</span> b = <span class="Normal">static_cast</span>&lt;<span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
 <span id="L356" class="LineNr">356 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L357" class="LineNr">357 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>b &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L358" class="LineNr">358 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;second ingredient can't be negative in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L358" class="LineNr">358 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;second ingredient can't be negative in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L359" class="LineNr">359 </span>  <span class="Conceal">¦</span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L360" class="LineNr">360 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L361" class="LineNr">361 </span>  <span class="Delimiter">}</span>
@@ -466,15 +466,15 @@ if ('onhashchange' in window) {
 <span id="L402" class="LineNr">402 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L403" class="LineNr">403 </span><span class="Normal">case</span> SHIFT_RIGHT: <span class="Delimiter">{</span>
 <span id="L404" class="LineNr">404 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L405" class="LineNr">405 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L405" class="LineNr">405 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L406" class="LineNr">406 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L407" class="LineNr">407 </span>  <span class="Delimiter">}</span>
 <span id="L408" class="LineNr">408 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L409" class="LineNr">409 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L409" class="LineNr">409 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L410" class="LineNr">410 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L411" class="LineNr">411 </span>  <span class="Delimiter">}</span>
 <span id="L412" class="LineNr">412 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L413" class="LineNr">413 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' yields one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L413" class="LineNr">413 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L414" class="LineNr">414 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L415" class="LineNr">415 </span>  <span class="Delimiter">}</span>
 <span id="L416" class="LineNr">416 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -490,7 +490,7 @@ if ('onhashchange' in window) {
 <span id="L426" class="LineNr">426 </span>  <span class="Normal">int</span> b = <span class="Normal">static_cast</span>&lt;<span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
 <span id="L427" class="LineNr">427 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L428" class="LineNr">428 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>b &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L429" class="LineNr">429 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;second ingredient can't be negative in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L429" class="LineNr">429 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;second ingredient can't be negative in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L430" class="LineNr">430 </span>  <span class="Conceal">¦</span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L431" class="LineNr">431 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L432" class="LineNr">432 </span>  <span class="Delimiter">}</span>
@@ -537,15 +537,15 @@ if ('onhashchange' in window) {
 <span id="L473" class="LineNr">473 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L474" class="LineNr">474 </span><span class="Normal">case</span> AND_BITS: <span class="Delimiter">{</span>
 <span id="L475" class="LineNr">475 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L476" class="LineNr">476 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L476" class="LineNr">476 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L477" class="LineNr">477 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L478" class="LineNr">478 </span>  <span class="Delimiter">}</span>
 <span id="L479" class="LineNr">479 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L481" class="LineNr">481 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L482" class="LineNr">482 </span>  <span class="Delimiter">}</span>
 <span id="L483" class="LineNr">483 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L484" class="LineNr">484 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' yields one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L484" class="LineNr">484 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L485" class="LineNr">485 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L486" class="LineNr">486 </span>  <span class="Delimiter">}</span>
 <span id="L487" class="LineNr">487 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -595,15 +595,15 @@ if ('onhashchange' in window) {
 <span id="L531" class="LineNr">531 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L532" class="LineNr">532 </span><span class="Normal">case</span> OR_BITS: <span class="Delimiter">{</span>
 <span id="L533" class="LineNr">533 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L534" class="LineNr">534 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L534" class="LineNr">534 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L535" class="LineNr">535 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L536" class="LineNr">536 </span>  <span class="Delimiter">}</span>
 <span id="L537" class="LineNr">537 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L538" class="LineNr">538 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L538" class="LineNr">538 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L539" class="LineNr">539 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L540" class="LineNr">540 </span>  <span class="Delimiter">}</span>
 <span id="L541" class="LineNr">541 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L542" class="LineNr">542 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' yields one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L542" class="LineNr">542 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L543" class="LineNr">543 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L544" class="LineNr">544 </span>  <span class="Delimiter">}</span>
 <span id="L545" class="LineNr">545 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -647,15 +647,15 @@ if ('onhashchange' in window) {
 <span id="L583" class="LineNr">583 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L584" class="LineNr">584 </span><span class="Normal">case</span> XOR_BITS: <span class="Delimiter">{</span>
 <span id="L585" class="LineNr">585 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L586" class="LineNr">586 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L586" class="LineNr">586 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L587" class="LineNr">587 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L588" class="LineNr">588 </span>  <span class="Delimiter">}</span>
 <span id="L589" class="LineNr">589 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L590" class="LineNr">590 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L590" class="LineNr">590 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L591" class="LineNr">591 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L592" class="LineNr">592 </span>  <span class="Delimiter">}</span>
 <span id="L593" class="LineNr">593 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L594" class="LineNr">594 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' yields one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L594" class="LineNr">594 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L595" class="LineNr">595 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L596" class="LineNr">596 </span>  <span class="Delimiter">}</span>
 <span id="L597" class="LineNr">597 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -699,15 +699,15 @@ if ('onhashchange' in window) {
 <span id="L635" class="LineNr">635 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L636" class="LineNr">636 </span><span class="Normal">case</span> FLIP_BITS: <span class="Delimiter">{</span>
 <span id="L637" class="LineNr">637 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L638" class="LineNr">638 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L638" class="LineNr">638 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L639" class="LineNr">639 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L640" class="LineNr">640 </span>  <span class="Delimiter">}</span>
 <span id="L641" class="LineNr">641 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L642" class="LineNr">642 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' requires a number ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L642" class="LineNr">642 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' requires a number ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L643" class="LineNr">643 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L644" class="LineNr">644 </span>  <span class="Delimiter">}</span>
 <span id="L645" class="LineNr">645 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L646" class="LineNr">646 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' yields one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L646" class="LineNr">646 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L647" class="LineNr">647 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L648" class="LineNr">648 </span>  <span class="Delimiter">}</span>
 <span id="L649" class="LineNr">649 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -756,7 +756,7 @@ if ('onhashchange' in window) {
 <span id="L692" class="LineNr">692 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L693" class="LineNr">693 </span><span class="Normal">case</span> ROUND: <span class="Delimiter">{</span>
 <span id="L694" class="LineNr">694 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L695" class="LineNr">695 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'round' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L695" class="LineNr">695 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'round' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L696" class="LineNr">696 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L697" class="LineNr">697 </span>  <span class="Delimiter">}</span>
 <span id="L698" class="LineNr">698 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -797,7 +797,7 @@ if ('onhashchange' in window) {
 <span id="L733" class="LineNr">733 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L734" class="LineNr">734 </span><span class="Normal">case</span> TRUNCATE: <span class="Delimiter">{</span>
 <span id="L735" class="LineNr">735 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L736" class="LineNr">736 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'truncate' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L736" class="LineNr">736 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'truncate' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L737" class="LineNr">737 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L738" class="LineNr">738 </span>  <span class="Delimiter">}</span>
 <span id="L739" class="LineNr">739 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -832,7 +832,7 @@ if ('onhashchange' in window) {
 <span id="L768" class="LineNr">768 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L769" class="LineNr">769 </span><span class="Normal">case</span> SQUARE_ROOT: <span class="Delimiter">{</span>
 <span id="L770" class="LineNr">770 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L771" class="LineNr">771 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'square-root' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L771" class="LineNr">771 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'square-root' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L772" class="LineNr">772 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L773" class="LineNr">773 </span>  <span class="Delimiter">}</span>
 <span id="L774" class="LineNr">774 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -855,7 +855,7 @@ if ('onhashchange' in window) {
 <span id="L791" class="LineNr">791 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L792" class="LineNr">792 </span><span class="Normal">case</span> CHARACTER_TO_CODE: <span class="Delimiter">{</span>
 <span id="L793" class="LineNr">793 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L794" class="LineNr">794 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'character-to-code' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L794" class="LineNr">794 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'character-to-code' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L795" class="LineNr">795 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L796" class="LineNr">796 </span>  <span class="Delimiter">}</span>
 <span id="L797" class="LineNr">797 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -863,7 +863,7 @@ if ('onhashchange' in window) {
 <span id="L799" class="LineNr">799 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L800" class="LineNr">800 </span>  <span class="Delimiter">}</span>
 <span id="L801" class="LineNr">801 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L802" class="LineNr">802 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'character-to-code' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L802" class="LineNr">802 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'character-to-code' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L803" class="LineNr">803 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L804" class="LineNr">804 </span>  <span class="Delimiter">}</span>
 <span id="L805" class="LineNr">805 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/023boolean.cc.html b/html/023boolean.cc.html
index 90ea4bc6..f216ff7a 100644
--- a/html/023boolean.cc.html
+++ b/html/023boolean.cc.html
@@ -76,7 +76,7 @@ if ('onhashchange' in window) {
 <span id="L13" class="LineNr"> 13 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L14" class="LineNr"> 14 </span>  <span class="Delimiter">}</span>
 <span id="L15" class="LineNr"> 15 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L16" class="LineNr"> 16 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L16" class="LineNr"> 16 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L17" class="LineNr"> 17 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L18" class="LineNr"> 18 </span>  <span class="Delimiter">}</span>
 <span id="L19" class="LineNr"> 19 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -134,7 +134,7 @@ if ('onhashchange' in window) {
 <span id="L71" class="LineNr"> 71 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L72" class="LineNr"> 72 </span>  <span class="Delimiter">}</span>
 <span id="L73" class="LineNr"> 73 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L74" class="LineNr"> 74 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L74" class="LineNr"> 74 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L75" class="LineNr"> 75 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L76" class="LineNr"> 76 </span>  <span class="Delimiter">}</span>
 <span id="L77" class="LineNr"> 77 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -186,7 +186,7 @@ if ('onhashchange' in window) {
 <span id="L123" class="LineNr">123 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L124" class="LineNr">124 </span><span class="Normal">case</span> NOT: <span class="Delimiter">{</span>
 <span id="L125" class="LineNr">125 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L126" class="LineNr">126 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;ingredients and products should match in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L126" class="LineNr">126 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;ingredients and products should match in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L127" class="LineNr">127 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L128" class="LineNr">128 </span>  <span class="Delimiter">}</span>
 <span id="L129" class="LineNr">129 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
diff --git a/html/024jump.cc.html b/html/024jump.cc.html
index 63f26819..dcb4f87a 100644
--- a/html/024jump.cc.html
+++ b/html/024jump.cc.html
@@ -80,11 +80,11 @@ if ('onhashchange' in window) {
 <span id="L16" class="LineNr"> 16 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L17" class="LineNr"> 17 </span><span class="Normal">case</span> JUMP: <span class="Delimiter">{</span>
 <span id="L18" class="LineNr"> 18 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L19" class="LineNr"> 19 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' should get exactly one ingredient</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L19" class="LineNr"> 19 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' should get exactly one ingredient</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L20" class="LineNr"> 20 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L21" class="LineNr"> 21 </span>  <span class="Delimiter">}</span>
 <span id="L22" class="LineNr"> 22 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L23" class="LineNr"> 23 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' should be a label or offset, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L23" class="LineNr"> 23 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' should be a label or offset, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L24" class="LineNr"> 24 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">}</span>
 <span id="L26" class="LineNr"> 26 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -119,15 +119,15 @@ if ('onhashchange' in window) {
 <span id="L55" class="LineNr"> 55 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L56" class="LineNr"> 56 </span><span class="Normal">case</span> JUMP_IF: <span class="Delimiter">{</span>
 <span id="L57" class="LineNr"> 57 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L58" class="LineNr"> 58 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' should get exactly two ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L58" class="LineNr"> 58 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' should get exactly two ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L59" class="LineNr"> 59 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L60" class="LineNr"> 60 </span>  <span class="Delimiter">}</span>
 <span id="L61" class="LineNr"> 61 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_scalar<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' requires a boolean for its first ingredient, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' requires a boolean for its first ingredient, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L63" class="LineNr"> 63 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L64" class="LineNr"> 64 </span>  <span class="Delimiter">}</span>
 <span id="L65" class="LineNr"> 65 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L66" class="LineNr"> 66 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' requires a label or offset for its second ingredient, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L66" class="LineNr"> 66 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' requires a label or offset for its second ingredient, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L67" class="LineNr"> 67 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L68" class="LineNr"> 68 </span>  <span class="Delimiter">}</span>
 <span id="L69" class="LineNr"> 69 </span>  <span class="Comment">// End JUMP_IF Checks</span>
@@ -172,15 +172,15 @@ if ('onhashchange' in window) {
 <span id="L108" class="LineNr">108 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L109" class="LineNr">109 </span><span class="Normal">case</span> JUMP_UNLESS: <span class="Delimiter">{</span>
 <span id="L110" class="LineNr">110 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' should get exactly two ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' should get exactly two ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L113" class="LineNr">113 </span>  <span class="Delimiter">}</span>
 <span id="L114" class="LineNr">114 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_scalar<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L115" class="LineNr">115 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' requires a boolean for its first ingredient, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L115" class="LineNr">115 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' requires a boolean for its first ingredient, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L116" class="LineNr">116 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L117" class="LineNr">117 </span>  <span class="Delimiter">}</span>
 <span id="L118" class="LineNr">118 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' requires a label or offset for its second ingredient, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' requires a label or offset for its second ingredient, but '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has type '&quot;</span> &lt;&lt; names_to_string_without_quotes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L120" class="LineNr">120 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L121" class="LineNr">121 </span>  <span class="Delimiter">}</span>
 <span id="L122" class="LineNr">122 </span>  <span class="Comment">// End JUMP_UNLESS Checks</span>
diff --git a/html/025compare.cc.html b/html/025compare.cc.html
index 8480dce6..2c3312a8 100644
--- a/html/025compare.cc.html
+++ b/html/025compare.cc.html
@@ -70,18 +70,18 @@ if ('onhashchange' in window) {
 <span id="L7" class="LineNr">  7 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L8" class="LineNr">  8 </span><span class="Normal">case</span> EQUAL: <span class="Delimiter">{</span>
 <span id="L9" class="LineNr">  9 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L10" class="LineNr"> 10 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L10" class="LineNr"> 10 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L11" class="LineNr"> 11 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L12" class="LineNr"> 12 </span>  <span class="Delimiter">}</span>
 <span id="L13" class="LineNr"> 13 </span>  <span class="Normal">const</span> reagent&amp; exemplar = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L14" class="LineNr"> 14 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip exemplar</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L15" class="LineNr"> 15 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_match<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> exemplar<span class="Delimiter">)</span> &amp;&amp; !types_match<span class="Delimiter">(</span>exemplar<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L16" class="LineNr"> 16 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' expects ingredients to be all of the same type, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L16" class="LineNr"> 16 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' expects ingredients to be all of the same type, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L17" class="LineNr"> 17 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L18" class="LineNr"> 18 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L19" class="LineNr"> 19 </span>  <span class="Delimiter">}</span>
 <span id="L20" class="LineNr"> 20 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L21" class="LineNr"> 21 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L21" class="LineNr"> 21 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L22" class="LineNr"> 22 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L23" class="LineNr"> 23 </span>  <span class="Delimiter">}</span>
 <span id="L24" class="LineNr"> 24 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -144,16 +144,16 @@ if ('onhashchange' in window) {
 <span id="L81" class="LineNr"> 81 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L82" class="LineNr"> 82 </span><span class="Normal">case</span> NOT_EQUAL: <span class="Delimiter">{</span>
 <span id="L83" class="LineNr"> 83 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L84" class="LineNr"> 84 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' needs two ingredients to compare in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L84" class="LineNr"> 84 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' needs two ingredients to compare in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L85" class="LineNr"> 85 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L86" class="LineNr"> 86 </span>  <span class="Delimiter">}</span>
 <span id="L87" class="LineNr"> 87 </span>  <span class="Normal">const</span> reagent&amp; exemplar = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L88" class="LineNr"> 88 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!types_match<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> exemplar<span class="Delimiter">)</span> &amp;&amp; !types_match<span class="Delimiter">(</span>exemplar<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L89" class="LineNr"> 89 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' expects ingredients to be all of the same type, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L89" class="LineNr"> 89 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' expects ingredients to be all of the same type, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L90" class="LineNr"> 90 </span>  <span class="Conceal">¦</span> <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L91" class="LineNr"> 91 </span>  <span class="Delimiter">}</span>
 <span id="L92" class="LineNr"> 92 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'equal' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L95" class="LineNr"> 95 </span>  <span class="Delimiter">}</span>
 <span id="L96" class="LineNr"> 96 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -198,7 +198,7 @@ if ('onhashchange' in window) {
 <span id="L135" class="LineNr">135 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L136" class="LineNr">136 </span><span class="Normal">case</span> GREATER_THAN: <span class="Delimiter">{</span>
 <span id="L137" class="LineNr">137 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L138" class="LineNr">138 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-than' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L138" class="LineNr">138 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-than' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L139" class="LineNr">139 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L140" class="LineNr">140 </span>  <span class="Delimiter">}</span>
 <span id="L141" class="LineNr">141 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -208,7 +208,7 @@ if ('onhashchange' in window) {
 <span id="L145" class="LineNr">145 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L146" class="LineNr">146 </span>  <span class="Delimiter">}</span>
 <span id="L147" class="LineNr">147 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L148" class="LineNr">148 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-than' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L148" class="LineNr">148 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-than' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L149" class="LineNr">149 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L150" class="LineNr">150 </span>  <span class="Delimiter">}</span>
 <span id="L151" class="LineNr">151 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -265,7 +265,7 @@ if ('onhashchange' in window) {
 <span id="L202" class="LineNr">202 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L203" class="LineNr">203 </span><span class="Normal">case</span> LESSER_THAN: <span class="Delimiter">{</span>
 <span id="L204" class="LineNr">204 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L205" class="LineNr">205 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'lesser-than' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L205" class="LineNr">205 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'lesser-than' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L207" class="LineNr">207 </span>  <span class="Delimiter">}</span>
 <span id="L208" class="LineNr">208 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -275,7 +275,7 @@ if ('onhashchange' in window) {
 <span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L213" class="LineNr">213 </span>  <span class="Delimiter">}</span>
 <span id="L214" class="LineNr">214 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L215" class="LineNr">215 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'lesser-than' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L215" class="LineNr">215 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'lesser-than' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L216" class="LineNr">216 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L217" class="LineNr">217 </span>  <span class="Delimiter">}</span>
 <span id="L218" class="LineNr">218 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -332,7 +332,7 @@ if ('onhashchange' in window) {
 <span id="L269" class="LineNr">269 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L270" class="LineNr">270 </span><span class="Normal">case</span> GREATER_OR_EQUAL: <span class="Delimiter">{</span>
 <span id="L271" class="LineNr">271 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L272" class="LineNr">272 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-or-equal' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L272" class="LineNr">272 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-or-equal' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L273" class="LineNr">273 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L274" class="LineNr">274 </span>  <span class="Delimiter">}</span>
 <span id="L275" class="LineNr">275 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -342,7 +342,7 @@ if ('onhashchange' in window) {
 <span id="L279" class="LineNr">279 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L280" class="LineNr">280 </span>  <span class="Delimiter">}</span>
 <span id="L281" class="LineNr">281 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L282" class="LineNr">282 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-or-equal' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L282" class="LineNr">282 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-or-equal' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L283" class="LineNr">283 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L284" class="LineNr">284 </span>  <span class="Delimiter">}</span>
 <span id="L285" class="LineNr">285 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -407,7 +407,7 @@ if ('onhashchange' in window) {
 <span id="L344" class="LineNr">344 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L345" class="LineNr">345 </span><span class="Normal">case</span> LESSER_OR_EQUAL: <span class="Delimiter">{</span>
 <span id="L346" class="LineNr">346 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L347" class="LineNr">347 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'lesser-or-equal' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L347" class="LineNr">347 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'lesser-or-equal' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L348" class="LineNr">348 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L349" class="LineNr">349 </span>  <span class="Delimiter">}</span>
 <span id="L350" class="LineNr">350 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -417,7 +417,7 @@ if ('onhashchange' in window) {
 <span id="L354" class="LineNr">354 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L355" class="LineNr">355 </span>  <span class="Delimiter">}</span>
 <span id="L356" class="LineNr">356 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L357" class="LineNr">357 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-or-equal' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L357" class="LineNr">357 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'greater-or-equal' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L358" class="LineNr">358 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L359" class="LineNr">359 </span>  <span class="Delimiter">}</span>
 <span id="L360" class="LineNr">360 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -482,7 +482,7 @@ if ('onhashchange' in window) {
 <span id="L419" class="LineNr">419 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L420" class="LineNr">420 </span><span class="Normal">case</span> MAX: <span class="Delimiter">{</span>
 <span id="L421" class="LineNr">421 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L422" class="LineNr">422 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'max' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L422" class="LineNr">422 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'max' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L423" class="LineNr">423 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L424" class="LineNr">424 </span>  <span class="Delimiter">}</span>
 <span id="L425" class="LineNr">425 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -492,7 +492,7 @@ if ('onhashchange' in window) {
 <span id="L429" class="LineNr">429 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L430" class="LineNr">430 </span>  <span class="Delimiter">}</span>
 <span id="L431" class="LineNr">431 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L432" class="LineNr">432 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'max' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L432" class="LineNr">432 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'max' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L433" class="LineNr">433 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L434" class="LineNr">434 </span>  <span class="Delimiter">}</span>
 <span id="L435" class="LineNr">435 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -521,7 +521,7 @@ if ('onhashchange' in window) {
 <span id="L458" class="LineNr">458 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L459" class="LineNr">459 </span><span class="Normal">case</span> MIN: <span class="Delimiter">{</span>
 <span id="L460" class="LineNr">460 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L461" class="LineNr">461 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'min' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L461" class="LineNr">461 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'min' needs at least two ingredients to compare in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L462" class="LineNr">462 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L463" class="LineNr">463 </span>  <span class="Delimiter">}</span>
 <span id="L464" class="LineNr">464 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -531,7 +531,7 @@ if ('onhashchange' in window) {
 <span id="L468" class="LineNr">468 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L469" class="LineNr">469 </span>  <span class="Delimiter">}</span>
 <span id="L470" class="LineNr">470 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L471" class="LineNr">471 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'min' yields exactly one product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L471" class="LineNr">471 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'min' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L472" class="LineNr">472 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L473" class="LineNr">473 </span>  <span class="Delimiter">}</span>
 <span id="L474" class="LineNr">474 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/026call.cc.html b/html/026call.cc.html
index bafd5907..74f5f611 100644
--- a/html/026call.cc.html
+++ b/html/026call.cc.html
@@ -166,7 +166,7 @@ if ('onhashchange' in window) {
 <span id="L102" class="LineNr">102 </span><span class="Delimiter">:(after &quot;Defined Recipe Checks&quot;)</span>
 <span id="L103" class="LineNr">103 </span><span class="Comment">// not a primitive; check that it's present in the book of recipes</span>
 <span id="L104" class="LineNr">104 </span><span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>operation<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L105" class="LineNr">105 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;undefined operation in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L105" class="LineNr">105 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;undefined operation in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L106" class="LineNr">106 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L107" class="LineNr">107 </span><span class="Delimiter">}</span>
 <span id="L108" class="LineNr">108 </span><span class="Delimiter">:(replace{} &quot;default:&quot; following &quot;End Primitive Recipe Implementations&quot;)</span>
diff --git a/html/027call_ingredient.cc.html b/html/027call_ingredient.cc.html
index 10e2a158..3e29f667 100644
--- a/html/027call_ingredient.cc.html
+++ b/html/027call_ingredient.cc.html
@@ -106,7 +106,7 @@ if ('onhashchange' in window) {
 <span id="L43" class="LineNr"> 43 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L44" class="LineNr"> 44 </span><span class="Normal">case</span> NEXT_INGREDIENT: <span class="Delimiter">{</span>
 <span id="L45" class="LineNr"> 45 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L46" class="LineNr"> 46 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'next-ingredient' didn't expect any ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L46" class="LineNr"> 46 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'next-ingredient' didn't expect any ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L47" class="LineNr"> 47 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L48" class="LineNr"> 48 </span>  <span class="Delimiter">}</span>
 <span id="L49" class="LineNr"> 49 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -203,7 +203,7 @@ if ('onhashchange' in window) {
 <span id="L140" class="LineNr">140 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L141" class="LineNr">141 </span><span class="Normal">case</span> INGREDIENT: <span class="Delimiter">{</span>
 <span id="L142" class="LineNr">142 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L143" class="LineNr">143 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'ingredient' expects exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L143" class="LineNr">143 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'ingredient' expects exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L144" class="LineNr">144 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L145" class="LineNr">145 </span>  <span class="Delimiter">}</span>
 <span id="L146" class="LineNr">146 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/028call_return.cc.html b/html/028call_return.cc.html
index cef3e25c..d6353a9a 100644
--- a/html/028call_return.cc.html
+++ b/html/028call_return.cc.html
@@ -156,16 +156,16 @@ if ('onhashchange' in window) {
 <span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_property<span class="Delimiter">(</span>return_inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> <span class="Constant">&quot;same-as-ingredient&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> string_tree* tmp = property<span class="Delimiter">(</span>return_inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> <span class="Constant">&quot;same-as-ingredient&quot;</span><span class="Delimiter">);</span>
 <span id="L95" class="LineNr"> 95 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!tmp || !tmp<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L96" class="LineNr"> 96 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'same-as-ingredient' metadata should take exactly one value in '&quot;</span> &lt;&lt; return_inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L96" class="LineNr"> 96 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'same-as-ingredient' metadata should take exactly one value in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>return_inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">goto</span> finish_return_check<span class="Delimiter">;</span>
 <span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">int</span> ingredient_index = <a href='002test.cc.html#L92'>to_integer</a><span class="Delimiter">(</span>tmp<span class="Delimiter">-&gt;</span>value<span class="Delimiter">);</span>
 <span id="L100" class="LineNr">100 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>ingredient_index &gt;= <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>caller_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too few ingredients in '&quot;</span> &lt;&lt; caller_instruction<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too few ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>caller_instruction<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L102" class="LineNr">102 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">goto</span> finish_return_check<span class="Delimiter">;</span>
 <span id="L103" class="LineNr">103 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L104" class="LineNr">104 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_dummy<span class="Delimiter">(</span>caller_instruction<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &amp;&amp; !is_literal<span class="Delimiter">(</span>caller_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">))</span> &amp;&amp; caller_instruction<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name != caller_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">).</span>name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L105" class="LineNr">105 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; caller_instruction<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' should write to '&quot;</span> &lt;&lt; caller_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;' rather than '&quot;</span> &lt;&lt; caller_instruction<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L105" class="LineNr">105 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>caller_instruction<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' should write to '&quot;</span> &lt;&lt; caller_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;' rather than '&quot;</span> &lt;&lt; caller_instruction<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L106" class="LineNr">106 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L107" class="LineNr">107 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L108" class="LineNr">108 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
diff --git a/html/029tools.cc.html b/html/029tools.cc.html
index 910587b9..db535ba2 100644
--- a/html/029tools.cc.html
+++ b/html/029tools.cc.html
@@ -78,7 +78,7 @@ if ('onhashchange' in window) {
 <span id="L13" class="LineNr"> 13 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L14" class="LineNr"> 14 </span><span class="Normal">case</span> TRACE: <span class="Delimiter">{</span>
 <span id="L15" class="LineNr"> 15 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt; <span class="Constant">3</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L16" class="LineNr"> 16 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'trace' takes three or more ingredients rather than '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L16" class="LineNr"> 16 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'trace' takes three or more ingredients rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L17" class="LineNr"> 17 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L18" class="LineNr"> 18 </span>  <span class="Delimiter">}</span>
 <span id="L19" class="LineNr"> 19 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/030container.cc.html b/html/030container.cc.html
index faf36aab..2da87801 100644
--- a/html/030container.cc.html
+++ b/html/030container.cc.html
@@ -245,9 +245,9 @@ if ('onhashchange' in window) {
 <span id="L178" class="LineNr">178 </span>  <span class="Conceal">¦</span> instruction&amp; inst = caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
 <span id="L179" class="LineNr">179 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;- compute container sizes for &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L180" class="LineNr">180 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
-<span id="L181" class="LineNr">181 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> compute_container_sizes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> <span class="Constant">&quot; in '&quot;</span>+inst<span class="Delimiter">.</span>original_string+<span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
+<span id="L181" class="LineNr">181 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> compute_container_sizes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> <span class="Constant">&quot; in '&quot;</span>+to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span>+<span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
 <span id="L182" class="LineNr">182 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
-<span id="L183" class="LineNr">183 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> compute_container_sizes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> <span class="Constant">&quot; in '&quot;</span>+inst<span class="Delimiter">.</span>original_string+<span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
+<span id="L183" class="LineNr">183 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> compute_container_sizes<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> <span class="Constant">&quot; in '&quot;</span>+to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span>+<span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
 <span id="L184" class="LineNr">184 </span>  <span class="Delimiter">}</span>
 <span id="L185" class="LineNr">185 </span><span class="Delimiter">}</span>
 <span id="L186" class="LineNr">186 </span>
@@ -428,7 +428,7 @@ if ('onhashchange' in window) {
 <span id="L361" class="LineNr">361 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L362" class="LineNr">362 </span><span class="Normal">case</span> GET: <span class="Delimiter">{</span>
 <span id="L363" class="LineNr">363 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L364" class="LineNr">364 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'get' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L364" class="LineNr">364 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'get' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L365" class="LineNr">365 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L366" class="LineNr">366 </span>  <span class="Delimiter">}</span>
 <span id="L367" class="LineNr">367 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> base = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>  <span class="Comment">// new copy for every invocation</span>
@@ -474,7 +474,7 @@ if ('onhashchange' in window) {
 <span id="L407" class="LineNr">407 </span>  <span class="Comment">// Update GET base in Run</span>
 <span id="L408" class="LineNr">408 </span>  <span class="Normal">int</span> base_address = base<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
 <span id="L409" class="LineNr">409 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>base_address == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L410" class="LineNr">410 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L410" class="LineNr">410 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L411" class="LineNr">411 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L412" class="LineNr">412 </span>  <span class="Delimiter">}</span>
 <span id="L413" class="LineNr">413 </span>  <span class="Normal">const</span> type_tree* base_type = base<span class="Delimiter">.</span>type<span class="Delimiter">;</span>
@@ -576,7 +576,7 @@ if ('onhashchange' in window) {
 <span id="L509" class="LineNr">509 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L510" class="LineNr">510 </span><span class="Normal">case</span> PUT: <span class="Delimiter">{</span>
 <span id="L511" class="LineNr">511 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">3</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L512" class="LineNr">512 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'put' expects exactly 3 ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L512" class="LineNr">512 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'put' expects exactly 3 ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L513" class="LineNr">513 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L514" class="LineNr">514 </span>  <span class="Delimiter">}</span>
 <span id="L515" class="LineNr">515 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> base = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -630,7 +630,7 @@ if ('onhashchange' in window) {
 <span id="L563" class="LineNr">563 </span>  <span class="Comment">// Update PUT base in Run</span>
 <span id="L564" class="LineNr">564 </span>  <span class="Normal">int</span> base_address = base<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
 <span id="L565" class="LineNr">565 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>base_address == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L566" class="LineNr">566 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L566" class="LineNr">566 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L567" class="LineNr">567 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L568" class="LineNr">568 </span>  <span class="Delimiter">}</span>
 <span id="L569" class="LineNr">569 </span>  <span class="Normal">const</span> type_tree* base_type = base<span class="Delimiter">.</span>type<span class="Delimiter">;</span>
@@ -897,7 +897,7 @@ if ('onhashchange' in window) {
 <span id="L830" class="LineNr">830 </span>
 <span id="L831" class="LineNr">831 </span><span class="Normal">void</span> check_or_set_invalid_types<span class="Delimiter">(</span>reagent&amp; r<span class="Delimiter">,</span> <span class="Normal">const</span> recipe&amp; caller<span class="Delimiter">,</span> <span class="Normal">const</span> instruction&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L832" class="LineNr">832 </span>  <span class="Comment">// Begin check_or_set_invalid_types(r)</span>
-<span id="L833" class="LineNr">833 </span>  check_or_set_invalid_types<span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">),</span> <span class="Constant">&quot;'&quot;</span>+inst<span class="Delimiter">.</span>original_string+<span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
+<span id="L833" class="LineNr">833 </span>  check_or_set_invalid_types<span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">),</span> <span class="Constant">&quot;'&quot;</span>+to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span>+<span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
 <span id="L834" class="LineNr">834 </span><span class="Delimiter">}</span>
 <span id="L835" class="LineNr">835 </span>
 <span id="L836" class="LineNr">836 </span><span class="Normal">void</span> check_or_set_invalid_types<span class="Delimiter">(</span>type_tree* type<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; location_for_error_messages<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; name_for_error_messages<span class="Delimiter">)</span> <span class="Delimiter">{</span>
diff --git a/html/031merge.cc.html b/html/031merge.cc.html
index 6b6c0206..162d4cb4 100644
--- a/html/031merge.cc.html
+++ b/html/031merge.cc.html
@@ -184,7 +184,7 @@ if ('onhashchange' in window) {
 <span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
 <span id="L120" class="LineNr">120 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;merge&quot;</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L121" class="LineNr">121 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'merge' should yield a single product in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'merge' should yield a single product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L123" class="LineNr">123 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L125" class="LineNr">125 </span>  <span class="Conceal">¦</span> reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> product = inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -192,12 +192,12 @@ if ('onhashchange' in window) {
 <span id="L127" class="LineNr">127 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> type_tree* product_base_type = product<span class="Delimiter">.</span>type<span class="Delimiter">-&gt;</span>atom ? product<span class="Delimiter">.</span>type : product<span class="Delimiter">.</span>type<span class="Delimiter">-&gt;</span>left<span class="Delimiter">;</span>
 <span id="L128" class="LineNr">128 </span>  <span class="Conceal">¦</span> assert<span class="Delimiter">(</span>product_base_type<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">);</span>
 <span id="L129" class="LineNr">129 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>product_base_type<span class="Delimiter">-&gt;</span>value == <span class="Constant">0</span> || !contains_key<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> product_base_type<span class="Delimiter">-&gt;</span>value<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L130" class="LineNr">130 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'merge' should yield a container in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L130" class="LineNr">130 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'merge' should yield a container in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L131" class="LineNr">131 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L132" class="LineNr">132 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L133" class="LineNr">133 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> type_info&amp; info = get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> product_base_type<span class="Delimiter">-&gt;</span>value<span class="Delimiter">);</span>
 <span id="L134" class="LineNr">134 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>info<span class="Delimiter">.</span>kind != <a href='010vm.cc.html#L173'>CONTAINER</a> &amp;&amp; info<span class="Delimiter">.</span>kind != <a href='010vm.cc.html#L174'>EXCLUSIVE_CONTAINER</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L135" class="LineNr">135 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'merge' should yield a container in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L135" class="LineNr">135 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'merge' should yield a container in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L136" class="LineNr">136 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L137" class="LineNr">137 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L138" class="LineNr">138 </span>  <span class="Conceal">¦</span> <a href='031merge.cc.html#L142'>check_merge_call</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">,</span> product<span class="Delimiter">,</span> caller<span class="Delimiter">,</span> inst<span class="Delimiter">);</span>
@@ -212,7 +212,7 @@ if ('onhashchange' in window) {
 <span id="L147" class="LineNr">147 </span>  <span class="Conceal">¦</span> assert<span class="Delimiter">(</span>!state<span class="Delimiter">.</span>data<span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
 <span id="L148" class="LineNr">148 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; ingredient_index &lt;&lt; <span class="Constant">&quot; vs &quot;</span> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>ingredients<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L149" class="LineNr">149 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>ingredient_index &gt;= <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>ingredients<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L150" class="LineNr">150 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too few ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L150" class="LineNr">150 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too few ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L151" class="LineNr">151 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L152" class="LineNr">152 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L153" class="LineNr">153 </span>  <span class="Conceal">¦</span> reagent&amp; container = state<span class="Delimiter">.</span>data<span class="Delimiter">.</span>top<span class="Delimiter">().</span>container<span class="Delimiter">;</span>
@@ -235,7 +235,7 @@ if ('onhashchange' in window) {
 <span id="L170" class="LineNr">170 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> state<span class="Delimiter">.</span>data<span class="Delimiter">.</span>pop<span class="Delimiter">();</span>
 <span id="L171" class="LineNr">171 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>state<span class="Delimiter">.</span>data<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
 <span id="L172" class="LineNr">172 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>ingredient_index &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>ingredients<span class="Delimiter">))</span>
-<span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too many ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too many ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L175" class="LineNr">175 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L176" class="LineNr">176 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> ++state<span class="Delimiter">.</span>data<span class="Delimiter">.</span>top<span class="Delimiter">().</span>container_element_index<span class="Delimiter">;</span>
@@ -251,7 +251,7 @@ if ('onhashchange' in window) {
 <span id="L186" class="LineNr">186 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// End check_merge_call Special-cases</span>
 <span id="L187" class="LineNr">187 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">default</span>: <span class="Delimiter">{</span>
 <span id="L188" class="LineNr">188 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_coercible<span class="Delimiter">(</span>container<span class="Delimiter">,</span> ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L189" class="LineNr">189 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;incorrect type of ingredient &quot;</span> &lt;&lt; ingredient_index &lt;&lt; <span class="Constant">&quot; in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L189" class="LineNr">189 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;incorrect type of ingredient &quot;</span> &lt;&lt; ingredient_index &lt;&lt; <span class="Constant">&quot; in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L190" class="LineNr">190 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (expected '&quot;</span> &lt;&lt; debug_string<span class="Delimiter">(</span>container<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L191" class="LineNr">191 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (got '&quot;</span> &lt;&lt; debug_string<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L192" class="LineNr">192 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
@@ -262,7 +262,7 @@ if ('onhashchange' in window) {
 <span id="L197" class="LineNr">197 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> state<span class="Delimiter">.</span>data<span class="Delimiter">.</span>pop<span class="Delimiter">();</span>
 <span id="L198" class="LineNr">198 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>state<span class="Delimiter">.</span>data<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
 <span id="L199" class="LineNr">199 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>ingredient_index &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>ingredients<span class="Delimiter">))</span>
-<span id="L200" class="LineNr">200 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too many ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L200" class="LineNr">200 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;too many ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L201" class="LineNr">201 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L202" class="LineNr">202 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L203" class="LineNr">203 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> ++state<span class="Delimiter">.</span>data<span class="Delimiter">.</span>top<span class="Delimiter">().</span>container_element_index<span class="Delimiter">;</span>
diff --git a/html/032array.cc.html b/html/032array.cc.html
index 0b13a70d..39c768b3 100644
--- a/html/032array.cc.html
+++ b/html/032array.cc.html
@@ -85,7 +85,7 @@ if ('onhashchange' in window) {
 <span id="L20" class="LineNr"> 20 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L21" class="LineNr"> 21 </span><span class="Normal">case</span> CREATE_ARRAY: <span class="Delimiter">{</span>
 <span id="L22" class="LineNr"> 22 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L23" class="LineNr"> 23 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'create-array' needs one product and no ingredients but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L23" class="LineNr"> 23 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'create-array' needs one product and no ingredients but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L24" class="LineNr"> 24 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">}</span>
 <span id="L26" class="LineNr"> 26 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> product = inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -95,13 +95,13 @@ if ('onhashchange' in window) {
 <span id="L30" class="LineNr"> 30 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L31" class="LineNr"> 31 </span>  <span class="Delimiter">}</span>
 <span id="L32" class="LineNr"> 32 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!product<span class="Delimiter">.</span>type<span class="Delimiter">-&gt;</span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L33" class="LineNr"> 33 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;create array of what? '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L33" class="LineNr"> 33 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;create array of what? '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L34" class="LineNr"> 34 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L35" class="LineNr"> 35 </span>  <span class="Delimiter">}</span>
 <span id="L36" class="LineNr"> 36 </span>  <span class="Comment">// 'create-array' will need to check properties rather than types</span>
 <span id="L37" class="LineNr"> 37 </span>  type_tree* array_length_from_type = product<span class="Delimiter">.</span>type<span class="Delimiter">-&gt;</span>right<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
 <span id="L38" class="LineNr"> 38 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!array_length_from_type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L39" class="LineNr"> 39 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;create array of what size? '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L39" class="LineNr"> 39 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;create array of what size? '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L40" class="LineNr"> 40 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L41" class="LineNr"> 41 </span>  <span class="Delimiter">}</span>
 <span id="L42" class="LineNr"> 42 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!product<span class="Delimiter">.</span>type<span class="Delimiter">-&gt;</span>right<span class="Delimiter">-&gt;</span>right<span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span>
@@ -385,7 +385,7 @@ if ('onhashchange' in window) {
 <span id="L320" class="LineNr">320 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L321" class="LineNr">321 </span><span class="Normal">case</span> INDEX: <span class="Delimiter">{</span>
 <span id="L322" class="LineNr">322 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L323" class="LineNr">323 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'index' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L323" class="LineNr">323 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'index' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L324" class="LineNr">324 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L325" class="LineNr">325 </span>  <span class="Delimiter">}</span>
 <span id="L326" class="LineNr">326 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> base = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -418,14 +418,14 @@ if ('onhashchange' in window) {
 <span id="L353" class="LineNr">353 </span>  <span class="Normal">int</span> base_address = base<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
 <span id="L354" class="LineNr">354 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;base <a href='043space.cc.html#L76'>address</a> is &quot;</span> &lt;&lt; base_address &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L355" class="LineNr">355 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>base_address == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L356" class="LineNr">356 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L356" class="LineNr">356 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L357" class="LineNr">357 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L358" class="LineNr">358 </span>  <span class="Delimiter">}</span>
 <span id="L359" class="LineNr">359 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> index = current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L360" class="LineNr">360 </span>  <span class="Comment">// Update INDEX index in Run</span>
 <span id="L361" class="LineNr">361 </span>  vector&lt;<span class="Normal">double</span>&gt; index_val<span class="Delimiter">(</span>read_memory<span class="Delimiter">(</span>index<span class="Delimiter">));</span>
 <span id="L362" class="LineNr">362 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> &lt; <span class="Constant">0</span> || index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> &gt;= <a href='001help.cc.html#L225'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> base_address<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L363" class="LineNr">363 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;invalid index &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot; in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L363" class="LineNr">363 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;invalid index &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot; in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L364" class="LineNr">364 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L365" class="LineNr">365 </span>  <span class="Delimiter">}</span>
 <span id="L366" class="LineNr">366 </span>  reagent<span class="Comment">/*</span><span class="Comment">local</span><span class="Comment">*/</span> element<span class="Delimiter">;</span>
@@ -571,7 +571,7 @@ if ('onhashchange' in window) {
 <span id="L506" class="LineNr">506 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L507" class="LineNr">507 </span><span class="Normal">case</span> PUT_INDEX: <span class="Delimiter">{</span>
 <span id="L508" class="LineNr">508 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">3</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L509" class="LineNr">509 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'put-index' expects exactly 3 ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L509" class="LineNr">509 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'put-index' expects exactly 3 ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L510" class="LineNr">510 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L511" class="LineNr">511 </span>  <span class="Delimiter">}</span>
 <span id="L512" class="LineNr">512 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> base = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -608,14 +608,14 @@ if ('onhashchange' in window) {
 <span id="L543" class="LineNr">543 </span>  <span class="Comment">// Update PUT_INDEX base in Run</span>
 <span id="L544" class="LineNr">544 </span>  <span class="Normal">int</span> base_address = base<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
 <span id="L545" class="LineNr">545 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>base_address == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L546" class="LineNr">546 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L546" class="LineNr">546 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L547" class="LineNr">547 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L548" class="LineNr">548 </span>  <span class="Delimiter">}</span>
 <span id="L549" class="LineNr">549 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> index = current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L550" class="LineNr">550 </span>  <span class="Comment">// Update PUT_INDEX index in Run</span>
 <span id="L551" class="LineNr">551 </span>  vector&lt;<span class="Normal">double</span>&gt; index_val<span class="Delimiter">(</span>read_memory<span class="Delimiter">(</span>index<span class="Delimiter">));</span>
 <span id="L552" class="LineNr">552 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> &lt; <span class="Constant">0</span> || index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> &gt;= <a href='001help.cc.html#L225'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> base_address<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L553" class="LineNr">553 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;invalid index &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot; in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L553" class="LineNr">553 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;invalid index &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot; in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L554" class="LineNr">554 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L555" class="LineNr">555 </span>  <span class="Delimiter">}</span>
 <span id="L556" class="LineNr">556 </span>  <span class="Normal">int</span> <a href='043space.cc.html#L76'>address</a> = base_address + <span class="Comment">/*</span><span class="Comment">skip length</span><span class="Comment">*/</span><span class="Constant">1</span> + index_val<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>*size_of<span class="Delimiter">(</span><a href='032array.cc.html#L381'>array_element</a><span class="Delimiter">(</span>base<span class="Delimiter">.</span>type<span class="Delimiter">));</span>
@@ -690,7 +690,7 @@ if ('onhashchange' in window) {
 <span id="L625" class="LineNr">625 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L626" class="LineNr">626 </span><span class="Normal">case</span> LENGTH: <span class="Delimiter">{</span>
 <span id="L627" class="LineNr">627 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L628" class="LineNr">628 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'length' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L628" class="LineNr">628 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'length' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L629" class="LineNr">629 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L630" class="LineNr">630 </span>  <span class="Delimiter">}</span>
 <span id="L631" class="LineNr">631 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> array = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -706,7 +706,7 @@ if ('onhashchange' in window) {
 <span id="L641" class="LineNr">641 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> array = current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L642" class="LineNr">642 </span>  <span class="Comment">// Update LENGTH array in Run</span>
 <span id="L643" class="LineNr">643 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>array<span class="Delimiter">.</span>value == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L644" class="LineNr">644 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L644" class="LineNr">644 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L645" class="LineNr">645 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L646" class="LineNr">646 </span>  <span class="Delimiter">}</span>
 <span id="L647" class="LineNr">647 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
diff --git a/html/033exclusive_container.cc.html b/html/033exclusive_container.cc.html
index 442293a6..a1b70094 100644
--- a/html/033exclusive_container.cc.html
+++ b/html/033exclusive_container.cc.html
@@ -165,7 +165,7 @@ if ('onhashchange' in window) {
 <span id="L100" class="LineNr">100 </span><span class="Normal">case</span> MAYBE_CONVERT: <span class="Delimiter">{</span>
 <span id="L101" class="LineNr">101 </span>  <span class="Normal">const</span> recipe&amp; caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
 <span id="L102" class="LineNr">102 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L103" class="LineNr">103 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'maybe-convert' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L103" class="LineNr">103 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'maybe-convert' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L104" class="LineNr">104 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L105" class="LineNr">105 </span>  <span class="Delimiter">}</span>
 <span id="L106" class="LineNr">106 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> base = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -186,7 +186,7 @@ if ('onhashchange' in window) {
 <span id="L121" class="LineNr">121 </span>  <span class="Delimiter">}</span>
 <span id="L122" class="LineNr">122 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L123" class="LineNr">123 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'maybe-convert' expects exactly 2 products in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'maybe-convert' expects exactly 2 products in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L125" class="LineNr">125 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L126" class="LineNr">126 </span>  <span class="Delimiter">}</span>
 <span id="L127" class="LineNr">127 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> product = inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -194,7 +194,7 @@ if ('onhashchange' in window) {
 <span id="L129" class="LineNr">129 </span>  reagent&amp; offset = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L130" class="LineNr">130 </span>  <a href='012transform.cc.html#L91'>populate_value</a><span class="Delimiter">(</span>offset<span class="Delimiter">);</span>
 <span id="L131" class="LineNr">131 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>offset<span class="Delimiter">.</span>value &gt;= <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> base_type<span class="Delimiter">-&gt;</span>value<span class="Delimiter">).</span>elements<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L132" class="LineNr">132 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;invalid tag &quot;</span> &lt;&lt; offset<span class="Delimiter">.</span>value &lt;&lt; <span class="Constant">&quot; in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L132" class="LineNr">132 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;invalid tag &quot;</span> &lt;&lt; offset<span class="Delimiter">.</span>value &lt;&lt; <span class="Constant">&quot; in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L133" class="LineNr">133 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L134" class="LineNr">134 </span>  <span class="Delimiter">}</span>
 <span id="L135" class="LineNr">135 </span>  <span class="Normal">const</span> reagent&amp; variant = variant_type<span class="Delimiter">(</span>base<span class="Delimiter">,</span> offset<span class="Delimiter">.</span>value<span class="Delimiter">);</span>
@@ -216,7 +216,7 @@ if ('onhashchange' in window) {
 <span id="L151" class="LineNr">151 </span>  <span class="Comment">// Update MAYBE_CONVERT base in Run</span>
 <span id="L152" class="LineNr">152 </span>  <span class="Normal">int</span> base_address = base<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
 <span id="L153" class="LineNr">153 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>base_address == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L154" class="LineNr">154 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L154" class="LineNr">154 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L155" class="LineNr">155 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L156" class="LineNr">156 </span>  <span class="Delimiter">}</span>
 <span id="L157" class="LineNr">157 </span>  <span class="Normal">int</span> tag = current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>value<span class="Delimiter">;</span>
@@ -387,13 +387,13 @@ if ('onhashchange' in window) {
 <span id="L322" class="LineNr">322 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>types_strictly_match<span class="Delimiter">(</span>container<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">)))</span>
 <span id="L323" class="LineNr">323 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L324" class="LineNr">324 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L325" class="LineNr">325 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient &quot;</span> &lt;&lt; ingredient_index &lt;&lt; <span class="Constant">&quot; of 'merge' should be a literal, for the tag of exclusive-container '&quot;</span> &lt;&lt; container_info<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L325" class="LineNr">325 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient &quot;</span> &lt;&lt; ingredient_index &lt;&lt; <span class="Constant">&quot; of 'merge' should be a literal, for the tag of exclusive-container '&quot;</span> &lt;&lt; container_info<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L326" class="LineNr">326 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L327" class="LineNr">327 </span>  <span class="Delimiter">}</span>
 <span id="L328" class="LineNr">328 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> ingredient = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">);</span>  <span class="Comment">// unnecessary copy just to keep this function from modifying caller</span>
 <span id="L329" class="LineNr">329 </span>  <a href='012transform.cc.html#L91'>populate_value</a><span class="Delimiter">(</span>ingredient<span class="Delimiter">);</span>
 <span id="L330" class="LineNr">330 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>ingredient<span class="Delimiter">.</span>value &gt;= <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>container_info<span class="Delimiter">.</span>elements<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L331" class="LineNr">331 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;invalid tag at &quot;</span> &lt;&lt; ingredient_index &lt;&lt; <span class="Constant">&quot; for '&quot;</span> &lt;&lt; container_info<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L331" class="LineNr">331 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;invalid tag at &quot;</span> &lt;&lt; ingredient_index &lt;&lt; <span class="Constant">&quot; for '&quot;</span> &lt;&lt; container_info<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L332" class="LineNr">332 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L333" class="LineNr">333 </span>  <span class="Delimiter">}</span>
 <span id="L334" class="LineNr">334 </span>  <span class="Normal">const</span> reagent&amp; variant = variant_type<span class="Delimiter">(</span>container<span class="Delimiter">,</span> ingredient<span class="Delimiter">.</span>value<span class="Delimiter">);</span>
diff --git a/html/034address.cc.html b/html/034address.cc.html
index 38fdd16d..cbdd3a35 100644
--- a/html/034address.cc.html
+++ b/html/034address.cc.html
@@ -227,7 +227,7 @@ if ('onhashchange' in window) {
 <span id="L163" class="LineNr">163 </span><span class="Normal">case</span> NEW: <span class="Delimiter">{</span>
 <span id="L164" class="LineNr">164 </span>  <span class="Normal">const</span> recipe&amp; caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
 <span id="L165" class="LineNr">165 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &gt; <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L166" class="LineNr">166 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'new' requires one or two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L166" class="LineNr">166 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'new' requires one or two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L167" class="LineNr">167 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L168" class="LineNr">168 </span>  <span class="Delimiter">}</span>
 <span id="L169" class="LineNr">169 </span>  <span class="Comment">// End NEW Check Special-cases</span>
@@ -245,7 +245,7 @@ if ('onhashchange' in window) {
 <span id="L181" class="LineNr">181 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L182" class="LineNr">182 </span>  <span class="Delimiter">}</span>
 <span id="L183" class="LineNr">183 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!product_of_new_is_valid<span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L184" class="LineNr">184 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product of 'new' has incorrect type: '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L184" class="LineNr">184 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product of 'new' has incorrect type: '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L185" class="LineNr">185 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L186" class="LineNr">186 </span>  <span class="Delimiter">}</span>
 <span id="L187" class="LineNr">187 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
diff --git a/html/035lookup.cc.html b/html/035lookup.cc.html
index 09b9f4f6..3573ab12 100644
--- a/html/035lookup.cc.html
+++ b/html/035lookup.cc.html
@@ -173,7 +173,7 @@ if ('onhashchange' in window) {
 <span id="L108" class="LineNr">108 </span>  <span class="Delimiter">}</span>
 <span id="L109" class="LineNr">109 </span>  <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>check_for_null<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L110" class="LineNr">110 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>Current_routine<span class="Delimiter">)</span>
-<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;tried to /lookup 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;tried to /lookup 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span>
 <span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;tried to /lookup 0</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L114" class="LineNr">114 </span>  <span class="Delimiter">}</span>
diff --git a/html/038new_text.cc.html b/html/038new_text.cc.html
index 62c63ce6..d5ae935f 100644
--- a/html/038new_text.cc.html
+++ b/html/038new_text.cc.html
@@ -235,7 +235,7 @@ if ('onhashchange' in window) {
 <span id="L170" class="LineNr">170 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L171" class="LineNr">171 </span><span class="Normal">case</span> ASSERT: <span class="Delimiter">{</span>
 <span id="L172" class="LineNr">172 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'assert' takes exactly two ingredients rather than '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'assert' takes exactly two ingredients rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L175" class="LineNr">175 </span>  <span class="Delimiter">}</span>
 <span id="L176" class="LineNr">176 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_scalar<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/039location_array.cc.html b/html/039location_array.cc.html
index 2637ca25..f6e23db0 100644
--- a/html/039location_array.cc.html
+++ b/html/039location_array.cc.html
@@ -66,7 +66,7 @@ if ('onhashchange' in window) {
 <span id="L6" class="LineNr"> 6 </span><span class="Normal">case</span> TO_LOCATION_ARRAY: <span class="Delimiter">{</span>
 <span id="L7" class="LineNr"> 7 </span>  <span class="Normal">const</span> recipe&amp; caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
 <span id="L8" class="LineNr"> 8 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_address_of_array_of_numbers<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L9" class="LineNr"> 9 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product of 'to-location-array' has incorrect type: '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L9" class="LineNr"> 9 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product of 'to-location-array' has incorrect type: '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L10" class="LineNr">10 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L11" class="LineNr">11 </span>  <span class="Delimiter">}</span>
 <span id="L12" class="LineNr">12 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
diff --git a/html/041jump_target.cc.html b/html/041jump_target.cc.html
index 3f9e3dd7..6c72e7b3 100644
--- a/html/041jump_target.cc.html
+++ b/html/041jump_target.cc.html
@@ -113,14 +113,14 @@ if ('onhashchange' in window) {
 <span id="L49" class="LineNr"> 49 </span>  <span class="Conceal">¦</span> instruction&amp; inst = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
 <span id="L50" class="LineNr"> 50 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L51" class="LineNr"> 51 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L52" class="LineNr"> 52 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' expects an ingredient but got 0</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L52" class="LineNr"> 52 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' expects an ingredient but got 0</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L53" class="LineNr"> 53 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L54" class="LineNr"> 54 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L55" class="LineNr"> 55 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='041jump_target.cc.html#L76'>replace_offset</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> offset<span class="Delimiter">,</span> i<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
 <span id="L56" class="LineNr"> 56 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L57" class="LineNr"> 57 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">&quot;jump-if&quot;</span> || inst<span class="Delimiter">.</span>name == <span class="Constant">&quot;jump-unless&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L58" class="LineNr"> 58 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt; <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L59" class="LineNr"> 59 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' expects 2 ingredients but got &quot;</span> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L59" class="LineNr"> 59 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' expects 2 ingredients but got &quot;</span> &lt;&lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L60" class="LineNr"> 60 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L61" class="LineNr"> 61 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='041jump_target.cc.html#L76'>replace_offset</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> offset<span class="Delimiter">,</span> i<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
diff --git a/html/042name.cc.html b/html/042name.cc.html
index cf22f218..63e13e35 100644
--- a/html/042name.cc.html
+++ b/html/042name.cc.html
@@ -163,7 +163,7 @@ if ('onhashchange' in window) {
 <span id="L98" class="LineNr"> 98 </span>
 <span id="L99" class="LineNr"> 99 </span><span class="Normal">bool</span> <a href='042name.cc.html#L99'>is_disqualified</a><span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">mutable</span><span class="Comment">*/</span> reagent&amp; x<span class="Delimiter">,</span> <span class="Normal">const</span> instruction&amp; inst<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; recipe_name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L100" class="LineNr">100 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>recipe_name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;missing type for '&quot;</span> &lt;&lt; x<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>recipe_name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;missing type for '&quot;</span> &lt;&lt; x<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L102" class="LineNr">102 </span>  <span class="Conceal">¦</span> <span class="Comment">// missing-type Error 1</span>
 <span id="L103" class="LineNr">103 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
 <span id="L104" class="LineNr">104 </span>  <span class="Delimiter">}</span>
@@ -297,7 +297,7 @@ if ('onhashchange' in window) {
 <span id="L232" class="LineNr">232 </span><span class="Delimiter">:(before &quot;End update GET offset_value in Check&quot;)</span>
 <span id="L233" class="LineNr">233 </span><span class="Normal">else</span> <span class="Delimiter">{</span>
 <span id="L234" class="LineNr">234 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!offset<span class="Delimiter">.</span>initialized<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L235" class="LineNr">235 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;uninitialized offset '&quot;</span> &lt;&lt; offset<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L235" class="LineNr">235 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;uninitialized offset '&quot;</span> &lt;&lt; offset<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L236" class="LineNr">236 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L237" class="LineNr">237 </span>  <span class="Delimiter">}</span>
 <span id="L238" class="LineNr">238 </span>  offset_value = offset<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
@@ -368,7 +368,7 @@ if ('onhashchange' in window) {
 <span id="L303" class="LineNr">303 </span><span class="Comment">// convert variant names of exclusive containers</span>
 <span id="L304" class="LineNr">304 </span><span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">&quot;maybe-convert&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L305" class="LineNr">305 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L306" class="LineNr">306 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;exactly 2 ingredients expected in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L306" class="LineNr">306 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;exactly 2 ingredients expected in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L307" class="LineNr">307 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L308" class="LineNr">308 </span>  <span class="Delimiter">}</span>
 <span id="L309" class="LineNr">309 </span>  assert<span class="Delimiter">(</span>is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)));</span>
diff --git a/html/043space.cc.html b/html/043space.cc.html
index 6d63636a..ccdf1fde 100644
--- a/html/043space.cc.html
+++ b/html/043space.cc.html
@@ -128,7 +128,7 @@ if ('onhashchange' in window) {
 <span id="L62" class="LineNr"> 62 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022arithmetic.cc.html#L108'>is_raw</a><span class="Delimiter">(</span>x<span class="Delimiter">)</span> || is_dummy<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L63" class="LineNr"> 63 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">&quot;default-space&quot;</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L64" class="LineNr"> 64 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>initialized<span class="Delimiter">)</span>
-<span id="L65" class="LineNr"> 65 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;: reagent not initialized: '&quot;</span> &lt;&lt; x<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L65" class="LineNr"> 65 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;: reagent not initialized: '&quot;</span> &lt;&lt; x<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L66" class="LineNr"> 66 </span>  x<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span><a href='043space.cc.html#L76'>address</a><span class="Delimiter">(</span>x<span class="Delimiter">.</span>value<span class="Delimiter">,</span> space_base<span class="Delimiter">(</span>x<span class="Delimiter">)));</span>
 <span id="L67" class="LineNr"> 67 </span>  x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;string<span class="Delimiter">,</span> string_tree*&gt;<span class="Delimiter">(</span><span class="Constant">&quot;raw&quot;</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
 <span id="L68" class="LineNr"> 68 </span>  assert<span class="Delimiter">(</span><a href='022arithmetic.cc.html#L108'>is_raw</a><span class="Delimiter">(</span>x<span class="Delimiter">));</span>
@@ -377,7 +377,7 @@ if ('onhashchange' in window) {
 <span id="L311" class="LineNr">311 </span>
 <span id="L312" class="LineNr">312 </span><span class="Normal">void</span> <a href='043space.cc.html#L312'>rewrite_default_space_instruction</a><span class="Delimiter">(</span>instruction&amp; curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L313" class="LineNr">313 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
-<span id="L314" class="LineNr">314 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; curr<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' can't take any ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L314" class="LineNr">314 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>curr<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' can't take any ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L315" class="LineNr">315 </span>  curr<span class="Delimiter">.</span>name = <span class="Constant">&quot;new&quot;</span><span class="Delimiter">;</span>
 <span id="L316" class="LineNr">316 </span>  <span class="Constant">curr.ingredients.push_back(reagent(&quot;location:type</span><span class="Constant">&quot;));</span>
 <span id="L317" class="LineNr">317 </span>  <span class="Constant">curr.ingredients.push_back(reagent(&quot;number-of-locals:literal</span><span class="Constant">&quot;));</span>
diff --git a/html/050scenario.cc.html b/html/050scenario.cc.html
index 3fc34bc5..85cb3859 100644
--- a/html/050scenario.cc.html
+++ b/html/050scenario.cc.html
@@ -824,7 +824,7 @@ if ('onhashchange' in window) {
 <span id="L757" class="LineNr">757 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L758" class="LineNr">758 </span><span class="Normal">case</span> CHECK_TRACE_COUNT_FOR_LABEL: <span class="Delimiter">{</span>
 <span id="L759" class="LineNr">759 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L760" class="LineNr">760 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'check-trace-count-for-label' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L760" class="LineNr">760 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'check-trace-count-for-label' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L761" class="LineNr">761 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L762" class="LineNr">762 </span>  <span class="Delimiter">}</span>
 <span id="L763" class="LineNr">763 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/053recipe_header.cc.html b/html/053recipe_header.cc.html
index 641c91b9..e9810da7 100644
--- a/html/053recipe_header.cc.html
+++ b/html/053recipe_header.cc.html
@@ -363,7 +363,7 @@ if ('onhashchange' in window) {
 <span id="L297" class="LineNr">297 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; min<span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">),</span> <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>callee<span class="Delimiter">.</span>ingredients<span class="Delimiter">));</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L298" class="LineNr">298 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// ingredients coerced from call to callee</span>
 <span id="L299" class="LineNr">299 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_coercible<span class="Delimiter">(</span>callee<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L300" class="LineNr">300 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L300" class="LineNr">300 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L301" class="LineNr">301 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  ['&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>callee<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' vs '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;']</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L302" class="LineNr">302 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L303" class="LineNr">303 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
@@ -371,7 +371,7 @@ if ('onhashchange' in window) {
 <span id="L305" class="LineNr">305 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L306" class="LineNr">306 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// products coerced from callee to call</span>
 <span id="L307" class="LineNr">307 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_coercible<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> callee<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L308" class="LineNr">308 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L308" class="LineNr">308 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L309" class="LineNr">309 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  ['&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' vs '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>callee<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;']</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L310" class="LineNr">310 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L311" class="LineNr">311 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
@@ -403,12 +403,12 @@ if ('onhashchange' in window) {
 <span id="L337" class="LineNr">337 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
 <span id="L338" class="LineNr">338 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;reply&quot;</span> &amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;return&quot;</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L339" class="LineNr">339 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;replied with the wrong number of products at '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;replied with the wrong number of products at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L341" class="LineNr">341 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L342" class="LineNr">342 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L343" class="LineNr">343 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L344" class="LineNr">344 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_match<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span>
-<span id="L345" class="LineNr">345 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;replied with the wrong type at '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L345" class="LineNr">345 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;replied with the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L346" class="LineNr">346 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L347" class="LineNr">347 </span>  <span class="Delimiter">}</span>
 <span id="L348" class="LineNr">348 </span><span class="Delimiter">}</span>
diff --git a/html/054static_dispatch.cc.html b/html/054static_dispatch.cc.html
index 14aa8e0b..458f1e9c 100644
--- a/html/054static_dispatch.cc.html
+++ b/html/054static_dispatch.cc.html
@@ -232,7 +232,7 @@ if ('onhashchange' in window) {
 <span id="L167" class="LineNr">167 </span>  <span class="Conceal">¦</span> instruction&amp; inst = caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
 <span id="L168" class="LineNr">168 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L169" class="LineNr">169 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='054static_dispatch.cc.html#L361'>non_ghost_size</a><span class="Delimiter">(</span><a href='001help.cc.html#L225'>get_or_insert</a><span class="Delimiter">(</span>Recipe_variants<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>name<span class="Delimiter">))</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L170" class="LineNr">170 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L170" class="LineNr">170 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction &quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L171" class="LineNr">171 </span>  <span class="Conceal">¦</span> Resolve_stack<span class="Delimiter">.</span>push_front<span class="Delimiter">(</span>call<span class="Delimiter">(</span>r<span class="Delimiter">));</span>
 <span id="L172" class="LineNr">172 </span>  <span class="Conceal">¦</span> Resolve_stack<span class="Delimiter">.</span>front<span class="Delimiter">().</span>running_step_index = index<span class="Delimiter">;</span>
 <span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> string new_name = best_variant<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">);</span>
@@ -267,11 +267,11 @@ if ('onhashchange' in window) {
 <span id="L202" class="LineNr">202 </span>  <span class="Comment">// error messages</span>
 <span id="L203" class="LineNr">203 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &gt;= <a href='010vm.cc.html#L191'>MAX_PRIMITIVE_RECIPES</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>  <span class="Comment">// we currently don't check types for primitive variants</span>
 <span id="L204" class="LineNr">204 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>variants<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L205" class="LineNr">205 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;types don't match in call for '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L205" class="LineNr">205 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;types don't match in call for '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  which tries to call '&quot;</span> &lt;&lt; original_header_label<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> variants<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L207" class="LineNr">207 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L208" class="LineNr">208 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
-<span id="L209" class="LineNr">209 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;failed to find a matching call for '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L209" class="LineNr">209 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;failed to find a matching call for '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L210" class="LineNr">210 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  available variants are:</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L211" class="LineNr">211 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>variants<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span>
 <span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;    &quot;</span> &lt;&lt; <a href='054static_dispatch.cc.html#L584'>original_header_label</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> variants<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
@@ -280,17 +280,17 @@ if ('onhashchange' in window) {
 <span id="L215" class="LineNr">215 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">const</span> recipe&amp; specializer_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> p<span class="Delimiter">-&gt;</span>running_recipe<span class="Delimiter">);</span>
 <span id="L216" class="LineNr">216 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; specializer_inst = specializer_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>running_step_index<span class="Delimiter">);</span>
 <span id="L217" class="LineNr">217 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>specializer_recipe<span class="Delimiter">.</span>name != <span class="Constant">&quot;interactive&quot;</span><span class="Delimiter">)</span>
-<span id="L218" class="LineNr">218 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (from '&quot;</span> &lt;&lt; specializer_inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' in &quot;</span> &lt;&lt; specializer_recipe<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L218" class="LineNr">218 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (from '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>specializer_inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' in &quot;</span> &lt;&lt; specializer_recipe<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L219" class="LineNr">219 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span>
-<span id="L220" class="LineNr">220 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (from '&quot;</span> &lt;&lt; specializer_inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L220" class="LineNr">220 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (from '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>specializer_inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L221" class="LineNr">221 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// One special-case to help with the rewrite_stash transform. (cross-layer)</span>
 <span id="L222" class="LineNr">222 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>specializer_inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;stash_&quot;</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L223" class="LineNr">223 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='010vm.cc.html#L32'>instruction</a> stash_inst<span class="Delimiter">;</span>
 <span id="L224" class="LineNr">224 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='054static_dispatch.cc.html#L368'>next_stash</a><span class="Delimiter">(</span>*p<span class="Delimiter">,</span> &amp;stash_inst<span class="Delimiter">))</span> <span class="Delimiter">{</span>
 <span id="L225" class="LineNr">225 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>specializer_recipe<span class="Delimiter">.</span>name != <span class="Constant">&quot;interactive&quot;</span><span class="Delimiter">)</span>
-<span id="L226" class="LineNr">226 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (part of '&quot;</span> &lt;&lt; stash_inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' in &quot;</span> &lt;&lt; specializer_recipe<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L226" class="LineNr">226 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (part of '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>stash_inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' in &quot;</span> &lt;&lt; specializer_recipe<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L227" class="LineNr">227 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span>
-<span id="L228" class="LineNr">228 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (part of '&quot;</span> &lt;&lt; stash_inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L228" class="LineNr">228 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (part of '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>stash_inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L229" class="LineNr">229 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L230" class="LineNr">230 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L231" class="LineNr">231 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
diff --git a/html/056shape_shifting_recipe.cc.html b/html/056shape_shifting_recipe.cc.html
index 06c28b2b..7d698d0e 100644
--- a/html/056shape_shifting_recipe.cc.html
+++ b/html/056shape_shifting_recipe.cc.html
@@ -330,9 +330,9 @@ if ('onhashchange' in window) {
 <span id="L263" class="LineNr"> 263 </span>  <span class="Conceal">¦</span> instruction&amp; inst = variant<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
 <span id="L264" class="LineNr"> 264 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;  <a href='010vm.cc.html#L32'>instruction</a>: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L265" class="LineNr"> 265 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> in = <span class="Constant">0</span><span class="Delimiter">;</span>  in &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++in<span class="Delimiter">)</span>
-<span id="L266" class="LineNr"> 266 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='056shape_shifting_recipe.cc.html#L272'>save_or_deduce_type_name</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>in<span class="Delimiter">),</span> type_names<span class="Delimiter">,</span> variant<span class="Delimiter">,</span> <span class="Constant">&quot; in '&quot;</span> + inst<span class="Delimiter">.</span>original_string + <span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
+<span id="L266" class="LineNr"> 266 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='056shape_shifting_recipe.cc.html#L272'>save_or_deduce_type_name</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>in<span class="Delimiter">),</span> type_names<span class="Delimiter">,</span> variant<span class="Delimiter">,</span> <span class="Constant">&quot; in '&quot;</span> + to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> + <span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
 <span id="L267" class="LineNr"> 267 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> out = <span class="Constant">0</span><span class="Delimiter">;</span>  out &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++out<span class="Delimiter">)</span>
-<span id="L268" class="LineNr"> 268 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='056shape_shifting_recipe.cc.html#L272'>save_or_deduce_type_name</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>out<span class="Delimiter">),</span> type_names<span class="Delimiter">,</span> variant<span class="Delimiter">,</span> <span class="Constant">&quot; in '&quot;</span> + inst<span class="Delimiter">.</span>original_string + <span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
+<span id="L268" class="LineNr"> 268 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='056shape_shifting_recipe.cc.html#L272'>save_or_deduce_type_name</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>out<span class="Delimiter">),</span> type_names<span class="Delimiter">,</span> variant<span class="Delimiter">,</span> <span class="Constant">&quot; in '&quot;</span> + to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> + <span class="Constant">&quot;'&quot;</span><span class="Delimiter">);</span>
 <span id="L269" class="LineNr"> 269 </span>  <span class="Delimiter">}</span>
 <span id="L270" class="LineNr"> 270 </span><span class="Delimiter">}</span>
 <span id="L271" class="LineNr"> 271 </span>
@@ -383,7 +383,7 @@ if ('onhashchange' in window) {
 <span id="L316" class="LineNr"> 316 </span>  <span class="Conceal">¦</span> <span class="Comment">// probably a bug in mu</span>
 <span id="L317" class="LineNr"> 317 </span>  <span class="Conceal">¦</span> <span class="Comment">// todo: make this smarter; only flag an error if exemplar_type contains some *new* type ingredient</span>
 <span id="L318" class="LineNr"> 318 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>exemplar<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;missing type ingredient for &quot;</span> &lt;&lt; exemplar_reagent<span class="Delimiter">.</span>original_string &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L319" class="LineNr"> 319 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (called from '&quot;</span> &lt;&lt; call_instruction<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L319" class="LineNr"> 319 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  (called from '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>call_instruction<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L320" class="LineNr"> 320 </span>  <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L321" class="LineNr"> 321 </span>  <span class="Delimiter">}</span>
 <span id="L322" class="LineNr"> 322 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!exemplar_type<span class="Delimiter">-&gt;</span>atom &amp;&amp; exemplar_type<span class="Delimiter">-&gt;</span>right == <span class="Constant">NULL</span> &amp;&amp; !refinement_type<span class="Delimiter">-&gt;</span>atom &amp;&amp; refinement_type<span class="Delimiter">-&gt;</span>right != <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -405,7 +405,7 @@ if ('onhashchange' in window) {
 <span id="L338" class="LineNr"> 338 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L339" class="LineNr"> 339 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
 <span id="L340" class="LineNr"> 340 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!deeply_equal_type_names<span class="Delimiter">(</span>get<span class="Delimiter">(</span>mappings<span class="Delimiter">,</span> exemplar_type<span class="Delimiter">-&gt;</span>name<span class="Delimiter">),</span> curr_refinement_type<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L341" class="LineNr"> 341 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;no call found for '&quot;</span> &lt;&lt; call_instruction<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L341" class="LineNr"> 341 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;no call found for '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>call_instruction<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L342" class="LineNr"> 342 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> *error = <span class="Constant">true</span><span class="Delimiter">;</span>
 <span id="L343" class="LineNr"> 343 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">delete</span> curr_refinement_type<span class="Delimiter">;</span>
 <span id="L344" class="LineNr"> 344 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
diff --git a/html/057immutable.cc.html b/html/057immutable.cc.html
index 308bba2a..215d3398 100644
--- a/html/057immutable.cc.html
+++ b/html/057immutable.cc.html
@@ -506,9 +506,9 @@ if ('onhashchange' in window) {
 <span id="L442" class="LineNr">442 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> &amp;&amp; current_ingredient_and_aliases<span class="Delimiter">.</span>find<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> != current_ingredient_and_aliases<span class="Delimiter">.</span><a href='003trace.cc.html#L185'>end</a><span class="Delimiter">())</span> <span class="Delimiter">{</span>
 <span id="L443" class="LineNr">443 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> string current_product_name = inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">;</span>
 <span id="L444" class="LineNr">444 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>current_product_name == original_ingredient_name<span class="Delimiter">)</span>
-<span id="L445" class="LineNr">445 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_product_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' because it's an ingredient of recipe &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L445" class="LineNr">445 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_product_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' because it's an ingredient of recipe &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L446" class="LineNr">446 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span>
-<span id="L447" class="LineNr">447 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_product_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' because that would modify &quot;</span> &lt;&lt; original_ingredient_name &lt;&lt; <span class="Constant">&quot; which is an ingredient of <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L447" class="LineNr">447 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_product_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' because that would modify &quot;</span> &lt;&lt; original_ingredient_name &lt;&lt; <span class="Constant">&quot; which is an ingredient of <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L448" class="LineNr">448 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L449" class="LineNr">449 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L450" class="LineNr">450 </span>  <span class="Delimiter">}</span>
@@ -529,9 +529,9 @@ if ('onhashchange' in window) {
 <span id="L465" class="LineNr">465 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>operation == PUT || inst<span class="Delimiter">.</span>operation == PUT_INDEX<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L466" class="LineNr">466 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>current_ingredient_index == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L467" class="LineNr">467 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>current_ingredient_name == original_ingredient_name<span class="Delimiter">)</span>
-<span id="L468" class="LineNr">468 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_ingredient_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' because it's an ingredient of recipe &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L468" class="LineNr">468 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_ingredient_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' because it's an ingredient of recipe &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L469" class="LineNr">469 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span>
-<span id="L470" class="LineNr">470 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_ingredient_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' because that would modify '&quot;</span> &lt;&lt; original_ingredient_name &lt;&lt; <span class="Constant">&quot;' which is an ingredient of <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L470" class="LineNr">470 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_ingredient_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' because that would modify '&quot;</span> &lt;&lt; original_ingredient_name &lt;&lt; <span class="Constant">&quot;' which is an ingredient of <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L471" class="LineNr">471 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L472" class="LineNr">472 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L473" class="LineNr">473 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
@@ -539,9 +539,9 @@ if ('onhashchange' in window) {
 <span id="L475" class="LineNr">475 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// defined recipe</span>
 <span id="L476" class="LineNr">476 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='057immutable.cc.html#L486'>is_modified_in_recipe</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>operation<span class="Delimiter">,</span> current_ingredient_index<span class="Delimiter">,</span> caller<span class="Delimiter">))</span> <span class="Delimiter">{</span>
 <span id="L477" class="LineNr">477 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>current_ingredient_name == original_ingredient_name<span class="Delimiter">)</span>
-<span id="L478" class="LineNr">478 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_ingredient_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' because it's an ingredient of recipe &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L478" class="LineNr">478 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_ingredient_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' because it's an ingredient of recipe &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L479" class="LineNr">479 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span>
-<span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_ingredient_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;' because that would modify '&quot;</span> &lt;&lt; original_ingredient_name &lt;&lt; <span class="Constant">&quot;' which is an ingredient of <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;cannot modify '&quot;</span> &lt;&lt; current_ingredient_name &lt;&lt; <span class="Constant">&quot;' in <a href='010vm.cc.html#L32'>instruction</a> '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' because that would modify '&quot;</span> &lt;&lt; original_ingredient_name &lt;&lt; <span class="Constant">&quot;' which is an ingredient of <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; but not also a product</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L481" class="LineNr">481 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L482" class="LineNr">482 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L483" class="LineNr">483 </span>  <span class="Delimiter">}</span>
diff --git a/html/058to_text.cc.html b/html/058to_text.cc.html
index 7d2b2bdb..7d2c1f6f 100644
--- a/html/058to_text.cc.html
+++ b/html/058to_text.cc.html
@@ -69,7 +69,7 @@ if ('onhashchange' in window) {
 <span id="L9" class="LineNr"> 9 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L10" class="LineNr">10 </span><span class="Normal">case</span> TO_TEXT: <span class="Delimiter">{</span>
 <span id="L11" class="LineNr">11 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L12" class="LineNr">12 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'to-text' requires a single ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L12" class="LineNr">12 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'to-text' requires a single ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L13" class="LineNr">13 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L14" class="LineNr">14 </span>  <span class="Delimiter">}</span>
 <span id="L15" class="LineNr">15 </span>  <span class="Comment">// can handle any type</span>
diff --git a/html/069hash.cc.html b/html/069hash.cc.html
index 6a8c68ff..a40d41c8 100644
--- a/html/069hash.cc.html
+++ b/html/069hash.cc.html
@@ -80,7 +80,7 @@ if ('onhashchange' in window) {
 <span id="L15" class="LineNr"> 15 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L16" class="LineNr"> 16 </span><span class="Normal">case</span> HASH: <span class="Delimiter">{</span>
 <span id="L17" class="LineNr"> 17 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L18" class="LineNr"> 18 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'hash' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L18" class="LineNr"> 18 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'hash' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L19" class="LineNr"> 19 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L20" class="LineNr"> 20 </span>  <span class="Delimiter">}</span>
 <span id="L21" class="LineNr"> 21 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -416,7 +416,7 @@ if ('onhashchange' in window) {
 <span id="L351" class="LineNr">351 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L352" class="LineNr">352 </span><span class="Normal">case</span> HASH_OLD: <span class="Delimiter">{</span>
 <span id="L353" class="LineNr">353 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L354" class="LineNr">354 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'hash_old' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L354" class="LineNr">354 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'hash_old' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L355" class="LineNr">355 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L356" class="LineNr">356 </span>  <span class="Delimiter">}</span>
 <span id="L357" class="LineNr">357 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/071recipe.cc.html b/html/071recipe.cc.html
index abc13fff..c1fc9e30 100644
--- a/html/071recipe.cc.html
+++ b/html/071recipe.cc.html
@@ -233,14 +233,14 @@ if ('onhashchange' in window) {
 <span id="L169" class="LineNr">169 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='071recipe.cc.html#L189'>is_indirect_call_with_ingredients</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>operation<span class="Delimiter">))</span> <span class="Delimiter">{</span>
 <span id="L170" class="LineNr">170 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip callee</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>  i &lt; min<span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">),</span> <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>callee_header<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span>+<span class="Comment">/*</span><span class="Comment">skip callee</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L171" class="LineNr">171 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_coercible<span class="Delimiter">(</span>callee_header<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i-<span class="Comment">/*</span><span class="Comment">skip callee</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">),</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span>
-<span id="L172" class="LineNr">172 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient &quot;</span> &lt;&lt; i-<span class="Comment">/*</span><span class="Comment">skip callee</span><span class="Comment">*/</span><span class="Constant">1</span> &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L172" class="LineNr">172 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient &quot;</span> &lt;&lt; i-<span class="Comment">/*</span><span class="Comment">skip callee</span><span class="Comment">*/</span><span class="Constant">1</span> &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L175" class="LineNr">175 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='071recipe.cc.html#L194'>is_indirect_call_with_products</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>operation<span class="Delimiter">))</span> <span class="Delimiter">{</span>
 <span id="L176" class="LineNr">176 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; min<span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">),</span> <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>callee_header<span class="Delimiter">.</span>products<span class="Delimiter">));</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L177" class="LineNr">177 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L178" class="LineNr">178 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_coercible<span class="Delimiter">(</span>callee_header<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span>
-<span id="L179" class="LineNr">179 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L179" class="LineNr">179 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L180" class="LineNr">180 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L181" class="LineNr">181 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L182" class="LineNr">182 </span>  <span class="Delimiter">}</span>
@@ -420,7 +420,7 @@ if ('onhashchange' in window) {
 <span id="L356" class="LineNr">356 </span><span class="Normal">void</span> <a href='071recipe.cc.html#L356'>check_for_recipe_literals</a><span class="Delimiter">(</span><span class="Normal">const</span> instruction&amp; inst<span class="Delimiter">,</span> <span class="Normal">const</span> recipe&amp; caller<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L357" class="LineNr">357 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L358" class="LineNr">358 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='071recipe.cc.html#L269'>is_mu_recipe</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L359" class="LineNr">359 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;missing type for '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L359" class="LineNr">359 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;missing type for '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;' in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L360" class="LineNr">360 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_present_in_ingredients<span class="Delimiter">(</span>caller<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">))</span>
 <span id="L361" class="LineNr">361 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  did you forget 'load-ingredients'?</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L362" class="LineNr">362 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
diff --git a/html/072scheduler.cc.html b/html/072scheduler.cc.html
index ceba7d11..302cfe20 100644
--- a/html/072scheduler.cc.html
+++ b/html/072scheduler.cc.html
@@ -523,7 +523,7 @@ if ('onhashchange' in window) {
 <span id="L458" class="LineNr">458 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L459" class="LineNr">459 </span><span class="Normal">case</span> ROUTINE_STATE: <span class="Delimiter">{</span>
 <span id="L460" class="LineNr">460 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L461" class="LineNr">461 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'routine-state' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L461" class="LineNr">461 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'routine-state' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L462" class="LineNr">462 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L463" class="LineNr">463 </span>  <span class="Delimiter">}</span>
 <span id="L464" class="LineNr">464 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -556,7 +556,7 @@ if ('onhashchange' in window) {
 <span id="L491" class="LineNr">491 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L492" class="LineNr">492 </span><span class="Normal">case</span> STOP: <span class="Delimiter">{</span>
 <span id="L493" class="LineNr">493 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L494" class="LineNr">494 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'stop' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L494" class="LineNr">494 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'stop' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L495" class="LineNr">495 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L496" class="LineNr">496 </span>  <span class="Delimiter">}</span>
 <span id="L497" class="LineNr">497 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -654,7 +654,7 @@ if ('onhashchange' in window) {
 <span id="L589" class="LineNr">589 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L590" class="LineNr">590 </span><span class="Normal">case</span> LIMIT_TIME: <span class="Delimiter">{</span>
 <span id="L591" class="LineNr">591 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L592" class="LineNr">592 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'limit-time' requires exactly two ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L592" class="LineNr">592 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'limit-time' requires exactly two ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L593" class="LineNr">593 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L594" class="LineNr">594 </span>  <span class="Delimiter">}</span>
 <span id="L595" class="LineNr">595 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -692,7 +692,7 @@ if ('onhashchange' in window) {
 <span id="L627" class="LineNr">627 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L628" class="LineNr">628 </span><span class="Normal">case</span> NUMBER_OF_INSTRUCTIONS: <span class="Delimiter">{</span>
 <span id="L629" class="LineNr">629 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L630" class="LineNr">630 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'number-of-instructions' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L630" class="LineNr">630 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'number-of-instructions' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L631" class="LineNr">631 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L632" class="LineNr">632 </span>  <span class="Delimiter">}</span>
 <span id="L633" class="LineNr">633 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/073wait.cc.html b/html/073wait.cc.html
index da8e2a9e..a9aa6847 100644
--- a/html/073wait.cc.html
+++ b/html/073wait.cc.html
@@ -143,7 +143,7 @@ if ('onhashchange' in window) {
 <span id="L78" class="LineNr"> 78 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L79" class="LineNr"> 79 </span><span class="Normal">case</span> WAIT_FOR_RESET_THEN_SET: <span class="Delimiter">{</span>
 <span id="L80" class="LineNr"> 80 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L81" class="LineNr"> 81 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'wait-for-reset-then-set' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L81" class="LineNr"> 81 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'wait-for-reset-then-set' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L82" class="LineNr"> 82 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L83" class="LineNr"> 83 </span>  <span class="Delimiter">}</span>
 <span id="L84" class="LineNr"> 84 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_location<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -174,7 +174,7 @@ if ('onhashchange' in window) {
 <span id="L109" class="LineNr">109 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L110" class="LineNr">110 </span><span class="Normal">case</span> RESET: <span class="Delimiter">{</span>
 <span id="L111" class="LineNr">111 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'reset' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'reset' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L114" class="LineNr">114 </span>  <span class="Delimiter">}</span>
 <span id="L115" class="LineNr">115 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_location<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -223,7 +223,7 @@ if ('onhashchange' in window) {
 <span id="L158" class="LineNr">158 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L159" class="LineNr">159 </span><span class="Normal">case</span> GET_LOCATION: <span class="Delimiter">{</span>
 <span id="L160" class="LineNr">160 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L161" class="LineNr">161 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'get-location' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L161" class="LineNr">161 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'get-location' expects exactly 2 ingredients in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L162" class="LineNr">162 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L163" class="LineNr">163 </span>  <span class="Delimiter">}</span>
 <span id="L164" class="LineNr">164 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> base = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -268,7 +268,7 @@ if ('onhashchange' in window) {
 <span id="L203" class="LineNr">203 </span>  canonize<span class="Delimiter">(</span>base<span class="Delimiter">);</span>
 <span id="L204" class="LineNr">204 </span>  <span class="Normal">int</span> base_address = base<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
 <span id="L205" class="LineNr">205 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>base_address == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to access location 0 in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L207" class="LineNr">207 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L208" class="LineNr">208 </span>  <span class="Delimiter">}</span>
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@@ -390,7 +390,7 @@ if ('onhashchange' in window) {
 <span id="L325" class="LineNr">325 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L326" class="LineNr">326 </span><span class="Normal">case</span> WAIT_FOR_ROUTINE: <span class="Delimiter">{</span>
 <span id="L327" class="LineNr">327 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L328" class="LineNr">328 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'wait-for-routine' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L328" class="LineNr">328 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'wait-for-routine' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L329" class="LineNr">329 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L330" class="LineNr">330 </span>  <span class="Delimiter">}</span>
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@@ -402,7 +402,7 @@ if ('onhashchange' in window) {
 <span id="L337" class="LineNr">337 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span id="L338" class="LineNr">338 </span><span class="Normal">case</span> WAIT_FOR_ROUTINE: <span class="Delimiter">{</span>
 <span id="L339" class="LineNr">339 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == Current_routine<span class="Delimiter">-&gt;</span>id<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;routine can't wait for itself! '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;routine can't wait for itself! '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L341" class="LineNr">341 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L342" class="LineNr">342 </span>  <span class="Delimiter">}</span>
 <span id="L343" class="LineNr">343 </span>  Current_routine<span class="Delimiter">-&gt;</span>state = WAITING<span class="Delimiter">;</span>
@@ -489,7 +489,7 @@ if ('onhashchange' in window) {
 <span id="L424" class="LineNr">424 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L425" class="LineNr">425 </span><span class="Normal">case</span> CURRENT_ROUTINE_IS_BLOCKED: <span class="Delimiter">{</span>
 <span id="L426" class="LineNr">426 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L427" class="LineNr">427 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'current-routine-is-blocked' should have no ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L427" class="LineNr">427 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'current-routine-is-blocked' should have no ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L428" class="LineNr">428 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L429" class="LineNr">429 </span>  <span class="Delimiter">}</span>
 <span id="L430" class="LineNr">430 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -507,7 +507,7 @@ if ('onhashchange' in window) {
 <span id="L442" class="LineNr">442 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L443" class="LineNr">443 </span><span class="Normal">case</span> CURRENT_ROUTINE_IS_UNBLOCKED: <span class="Delimiter">{</span>
 <span id="L444" class="LineNr">444 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L445" class="LineNr">445 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'current-routine-is-unblocked' should have no ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L445" class="LineNr">445 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'current-routine-is-unblocked' should have no ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L446" class="LineNr">446 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L447" class="LineNr">447 </span>  <span class="Delimiter">}</span>
 <span id="L448" class="LineNr">448 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -552,7 +552,7 @@ if ('onhashchange' in window) {
 <span id="L487" class="LineNr">487 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L488" class="LineNr">488 </span><span class="Normal">case</span> WAIT_FOR_ROUTINE_TO_BLOCK: <span class="Delimiter">{</span>
 <span id="L489" class="LineNr">489 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L490" class="LineNr">490 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'wait-for-routine-to-block' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L490" class="LineNr">490 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'wait-for-routine-to-block' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L491" class="LineNr">491 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L492" class="LineNr">492 </span>  <span class="Delimiter">}</span>
 <span id="L493" class="LineNr">493 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -564,7 +564,7 @@ if ('onhashchange' in window) {
 <span id="L499" class="LineNr">499 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span id="L500" class="LineNr">500 </span><span class="Normal">case</span> WAIT_FOR_ROUTINE_TO_BLOCK: <span class="Delimiter">{</span>
 <span id="L501" class="LineNr">501 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == Current_routine<span class="Delimiter">-&gt;</span>id<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L502" class="LineNr">502 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;routine can't wait for itself! '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L502" class="LineNr">502 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;routine can't wait for itself! '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L503" class="LineNr">503 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L504" class="LineNr">504 </span>  <span class="Delimiter">}</span>
 <span id="L505" class="LineNr">505 </span>  Current_routine<span class="Delimiter">-&gt;</span>state = WAITING<span class="Delimiter">;</span>
@@ -601,7 +601,7 @@ if ('onhashchange' in window) {
 <span id="L536" class="LineNr">536 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L537" class="LineNr">537 </span><span class="Normal">case</span> RESTART: <span class="Delimiter">{</span>
 <span id="L538" class="LineNr">538 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L539" class="LineNr">539 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'restart' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L539" class="LineNr">539 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'restart' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L540" class="LineNr">540 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L541" class="LineNr">541 </span>  <span class="Delimiter">}</span>
 <span id="L542" class="LineNr">542 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/074deep_copy.cc.html b/html/074deep_copy.cc.html
index 341158ab..0c860521 100644
--- a/html/074deep_copy.cc.html
+++ b/html/074deep_copy.cc.html
@@ -259,15 +259,15 @@ if ('onhashchange' in window) {
 <span id="L195" class="LineNr">195 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L196" class="LineNr">196 </span><span class="Normal">case</span> DEEP_COPY: <span class="Delimiter">{</span>
 <span id="L197" class="LineNr">197 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L198" class="LineNr">198 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'deep-copy' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L198" class="LineNr">198 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'deep-copy' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L199" class="LineNr">199 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L200" class="LineNr">200 </span>  <span class="Delimiter">}</span>
 <span id="L201" class="LineNr">201 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L202" class="LineNr">202 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'deep-copy' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L202" class="LineNr">202 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'deep-copy' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L203" class="LineNr">203 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L204" class="LineNr">204 </span>  <span class="Delimiter">}</span>
 <span id="L205" class="LineNr">205 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!types_strictly_match<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'deep-copy' requires its ingredient and product to be the same type, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'deep-copy' requires its ingredient and product to be the same type, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L207" class="LineNr">207 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L208" class="LineNr">208 </span>  <span class="Delimiter">}</span>
 <span id="L209" class="LineNr">209 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
diff --git a/html/080display.cc.html b/html/080display.cc.html
index 1b160f8e..0b7b9bad 100644
--- a/html/080display.cc.html
+++ b/html/080display.cc.html
@@ -152,7 +152,7 @@ if ('onhashchange' in window) {
 <span id="L90" class="LineNr"> 90 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L91" class="LineNr"> 91 </span><span class="Normal">case</span> PRINT_CHARACTER_TO_DISPLAY: <span class="Delimiter">{</span>
 <span id="L92" class="LineNr"> 92 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'print-character-to-display' requires at least one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'print-character-to-display' requires at least one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L95" class="LineNr"> 95 </span>  <span class="Delimiter">}</span>
 <span id="L96" class="LineNr"> 96 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -234,7 +234,7 @@ if ('onhashchange' in window) {
 <span id="L172" class="LineNr">172 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L173" class="LineNr">173 </span><span class="Normal">case</span> MOVE_CURSOR_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L174" class="LineNr">174 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L175" class="LineNr">175 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'move-cursor-on-display' requires two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L175" class="LineNr">175 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'move-cursor-on-display' requires two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L176" class="LineNr">176 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L177" class="LineNr">177 </span>  <span class="Delimiter">}</span>
 <span id="L178" class="LineNr">178 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/082scenario_screen.cc.html b/html/082scenario_screen.cc.html
index cd05186d..b44b2e45 100644
--- a/html/082scenario_screen.cc.html
+++ b/html/082scenario_screen.cc.html
@@ -253,7 +253,7 @@ if ('onhashchange' in window) {
 <span id="L188" class="LineNr">188 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L189" class="LineNr">189 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN: <span class="Delimiter">{</span>
 <span id="L190" class="LineNr">190 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L191" class="LineNr">191 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'screen-should-contain' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L191" class="LineNr">191 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'screen-should-contain' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L192" class="LineNr">192 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L193" class="LineNr">193 </span>  <span class="Delimiter">}</span>
 <span id="L194" class="LineNr">194 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -277,7 +277,7 @@ if ('onhashchange' in window) {
 <span id="L212" class="LineNr">212 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L213" class="LineNr">213 </span><span class="Normal">case</span> SCREEN_SHOULD_CONTAIN_IN_COLOR: <span class="Delimiter">{</span>
 <span id="L214" class="LineNr">214 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L215" class="LineNr">215 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'screen-should-contain-in-color' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L215" class="LineNr">215 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'screen-should-contain-in-color' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L216" class="LineNr">216 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L217" class="LineNr">217 </span>  <span class="Delimiter">}</span>
 <span id="L218" class="LineNr">218 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
diff --git a/html/087file.cc.html b/html/087file.cc.html
index 7dee6f67..a90b7c37 100644
--- a/html/087file.cc.html
+++ b/html/087file.cc.html
@@ -77,7 +77,7 @@ if ('onhashchange' in window) {
 <span id="L16" class="LineNr"> 16 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L17" class="LineNr"> 17 </span><span class="Normal">case</span> _OPEN_FILE_FOR_READING: <span class="Delimiter">{</span>
 <span id="L18" class="LineNr"> 18 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L19" class="LineNr"> 19 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-reading' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L19" class="LineNr"> 19 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-reading' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L20" class="LineNr"> 20 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L21" class="LineNr"> 21 </span>  <span class="Delimiter">}</span>
 <span id="L22" class="LineNr"> 22 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -85,7 +85,7 @@ if ('onhashchange' in window) {
 <span id="L24" class="LineNr"> 24 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">}</span>
 <span id="L26" class="LineNr"> 26 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L27" class="LineNr"> 27 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-reading' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L27" class="LineNr"> 27 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-reading' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L28" class="LineNr"> 28 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L29" class="LineNr"> 29 </span>  <span class="Delimiter">}</span>
 <span id="L30" class="LineNr"> 30 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -112,7 +112,7 @@ if ('onhashchange' in window) {
 <span id="L51" class="LineNr"> 51 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L52" class="LineNr"> 52 </span><span class="Normal">case</span> _OPEN_FILE_FOR_WRITING: <span class="Delimiter">{</span>
 <span id="L53" class="LineNr"> 53 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L54" class="LineNr"> 54 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-writing' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L54" class="LineNr"> 54 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-writing' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L55" class="LineNr"> 55 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L56" class="LineNr"> 56 </span>  <span class="Delimiter">}</span>
 <span id="L57" class="LineNr"> 57 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -120,7 +120,7 @@ if ('onhashchange' in window) {
 <span id="L59" class="LineNr"> 59 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L60" class="LineNr"> 60 </span>  <span class="Delimiter">}</span>
 <span id="L61" class="LineNr"> 61 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-writing' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-writing' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L63" class="LineNr"> 63 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L64" class="LineNr"> 64 </span>  <span class="Delimiter">}</span>
 <span id="L65" class="LineNr"> 65 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -146,7 +146,7 @@ if ('onhashchange' in window) {
 <span id="L85" class="LineNr"> 85 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L86" class="LineNr"> 86 </span><span class="Normal">case</span> _READ_FROM_FILE: <span class="Delimiter">{</span>
 <span id="L87" class="LineNr"> 87 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L88" class="LineNr"> 88 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-file' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L88" class="LineNr"> 88 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-file' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L89" class="LineNr"> 89 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L90" class="LineNr"> 90 </span>  <span class="Delimiter">}</span>
 <span id="L91" class="LineNr"> 91 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -154,7 +154,7 @@ if ('onhashchange' in window) {
 <span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Delimiter">}</span>
 <span id="L95" class="LineNr"> 95 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L96" class="LineNr"> 96 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-file' requires exactly two products, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L96" class="LineNr"> 96 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-file' requires exactly two products, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L98" class="LineNr"> 98 </span>  <span class="Delimiter">}</span>
 <span id="L99" class="LineNr"> 99 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -210,7 +210,7 @@ if ('onhashchange' in window) {
 <span id="L149" class="LineNr">149 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L150" class="LineNr">150 </span><span class="Normal">case</span> _WRITE_TO_FILE: <span class="Delimiter">{</span>
 <span id="L151" class="LineNr">151 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L152" class="LineNr">152 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-file' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L152" class="LineNr">152 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-file' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L153" class="LineNr">153 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L154" class="LineNr">154 </span>  <span class="Delimiter">}</span>
 <span id="L155" class="LineNr">155 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -222,7 +222,7 @@ if ('onhashchange' in window) {
 <span id="L161" class="LineNr">161 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L162" class="LineNr">162 </span>  <span class="Delimiter">}</span>
 <span id="L163" class="LineNr">163 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L164" class="LineNr">164 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-file' writes to no products, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L164" class="LineNr">164 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-file' writes to no products, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L165" class="LineNr">165 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L166" class="LineNr">166 </span>  <span class="Delimiter">}</span>
 <span id="L167" class="LineNr">167 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -258,7 +258,7 @@ if ('onhashchange' in window) {
 <span id="L197" class="LineNr">197 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L198" class="LineNr">198 </span><span class="Normal">case</span> _CLOSE_FILE: <span class="Delimiter">{</span>
 <span id="L199" class="LineNr">199 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L200" class="LineNr">200 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-file' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L200" class="LineNr">200 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-file' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L201" class="LineNr">201 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L202" class="LineNr">202 </span>  <span class="Delimiter">}</span>
 <span id="L203" class="LineNr">203 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -266,11 +266,11 @@ if ('onhashchange' in window) {
 <span id="L205" class="LineNr">205 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L206" class="LineNr">206 </span>  <span class="Delimiter">}</span>
 <span id="L207" class="LineNr">207 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L208" class="LineNr">208 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-file' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L208" class="LineNr">208 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-file' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L209" class="LineNr">209 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L210" class="LineNr">210 </span>  <span class="Delimiter">}</span>
 <span id="L211" class="LineNr">211 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name != inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-file' requires its product to be the same as its ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-file' requires its product to be the same as its ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L213" class="LineNr">213 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L214" class="LineNr">214 </span>  <span class="Delimiter">}</span>
 <span id="L215" class="LineNr">215 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
diff --git a/html/091socket.cc.html b/html/091socket.cc.html
index 58500b27..ec2d9579 100644
--- a/html/091socket.cc.html
+++ b/html/091socket.cc.html
@@ -79,7 +79,7 @@ if ('onhashchange' in window) {
 <span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L18" class="LineNr"> 18 </span><span class="Normal">case</span> _OPEN_CLIENT_SOCKET: <span class="Delimiter">{</span>
 <span id="L19" class="LineNr"> 19 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L20" class="LineNr"> 20 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-client-socket' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L20" class="LineNr"> 20 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-client-socket' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L21" class="LineNr"> 21 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L22" class="LineNr"> 22 </span>  <span class="Delimiter">}</span>
 <span id="L23" class="LineNr"> 23 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -91,7 +91,7 @@ if ('onhashchange' in window) {
 <span id="L29" class="LineNr"> 29 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L30" class="LineNr"> 30 </span>  <span class="Delimiter">}</span>
 <span id="L31" class="LineNr"> 31 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L32" class="LineNr"> 32 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-client-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L32" class="LineNr"> 32 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-client-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L33" class="LineNr"> 33 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L34" class="LineNr"> 34 </span>  <span class="Delimiter">}</span>
 <span id="L35" class="LineNr"> 35 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -142,7 +142,7 @@ if ('onhashchange' in window) {
 <span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L81" class="LineNr"> 81 </span><span class="Normal">case</span> _OPEN_SERVER_SOCKET: <span class="Delimiter">{</span>
 <span id="L82" class="LineNr"> 82 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L83" class="LineNr"> 83 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-server-socket' requires exactly one ingredient (the port to listen for requests on), but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L83" class="LineNr"> 83 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-server-socket' requires exactly one ingredient (the port to listen for requests on), but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L84" class="LineNr"> 84 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L85" class="LineNr"> 85 </span>  <span class="Delimiter">}</span>
 <span id="L86" class="LineNr"> 86 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -150,7 +150,7 @@ if ('onhashchange' in window) {
 <span id="L88" class="LineNr"> 88 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L89" class="LineNr"> 89 </span>  <span class="Delimiter">}</span>
 <span id="L90" class="LineNr"> 90 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L91" class="LineNr"> 91 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-server-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L91" class="LineNr"> 91 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-server-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L92" class="LineNr"> 92 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L93" class="LineNr"> 93 </span>  <span class="Delimiter">}</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -204,7 +204,7 @@ if ('onhashchange' in window) {
 <span id="L142" class="LineNr">142 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L143" class="LineNr">143 </span><span class="Normal">case</span> _ACCEPT: <span class="Delimiter">{</span>
 <span id="L144" class="LineNr">144 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L145" class="LineNr">145 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$accept' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L145" class="LineNr">145 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$accept' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L146" class="LineNr">146 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L147" class="LineNr">147 </span>  <span class="Delimiter">}</span>
 <span id="L148" class="LineNr">148 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -212,7 +212,7 @@ if ('onhashchange' in window) {
 <span id="L150" class="LineNr">150 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L151" class="LineNr">151 </span>  <span class="Delimiter">}</span>
 <span id="L152" class="LineNr">152 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L153" class="LineNr">153 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$accept' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L153" class="LineNr">153 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$accept' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L154" class="LineNr">154 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L155" class="LineNr">155 </span>  <span class="Delimiter">}</span>
 <span id="L156" class="LineNr">156 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -253,7 +253,7 @@ if ('onhashchange' in window) {
 <span id="L191" class="LineNr">191 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L192" class="LineNr">192 </span><span class="Normal">case</span> _READ_FROM_SOCKET: <span class="Delimiter">{</span>
 <span id="L193" class="LineNr">193 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L194" class="LineNr">194 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-socket' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L194" class="LineNr">194 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-socket' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L195" class="LineNr">195 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L196" class="LineNr">196 </span>  <span class="Delimiter">}</span>
 <span id="L197" class="LineNr">197 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -262,7 +262,7 @@ if ('onhashchange' in window) {
 <span id="L200" class="LineNr">200 </span>  <span class="Delimiter">}</span>
 <span id="L201" class="LineNr">201 </span>  <span class="Normal">int</span> nprod = <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>
 <span id="L202" class="LineNr">202 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>nprod == <span class="Constant">0</span> || nprod &gt; <span class="Constant">4</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L203" class="LineNr">203 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-socket' requires 1-4 products, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L203" class="LineNr">203 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-socket' requires 1-4 products, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L204" class="LineNr">204 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L205" class="LineNr">205 </span>  <span class="Delimiter">}</span>
 <span id="L206" class="LineNr">206 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -346,7 +346,7 @@ if ('onhashchange' in window) {
 <span id="L284" class="LineNr">284 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L285" class="LineNr">285 </span><span class="Normal">case</span> _WRITE_TO_SOCKET: <span class="Delimiter">{</span>
 <span id="L286" class="LineNr">286 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L287" class="LineNr">287 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-socket' requires exactly two ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L287" class="LineNr">287 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-socket' requires exactly two ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L288" class="LineNr">288 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L289" class="LineNr">289 </span>  <span class="Delimiter">}</span>
 <span id="L290" class="LineNr">290 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -374,7 +374,7 @@ if ('onhashchange' in window) {
 <span id="L312" class="LineNr">312 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L313" class="LineNr">313 </span><span class="Normal">case</span> _CLOSE_SOCKET: <span class="Delimiter">{</span>
 <span id="L314" class="LineNr">314 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L315" class="LineNr">315 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-socket' requires exactly two ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L315" class="LineNr">315 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-socket' requires exactly two ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L316" class="LineNr">316 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L317" class="LineNr">317 </span>  <span class="Delimiter">}</span>
 <span id="L318" class="LineNr">318 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
@@ -382,7 +382,7 @@ if ('onhashchange' in window) {
 <span id="L320" class="LineNr">320 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L321" class="LineNr">321 </span>  <span class="Delimiter">}</span>
 <span id="L322" class="LineNr">322 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L323" class="LineNr">323 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L323" class="LineNr">323 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L324" class="LineNr">324 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L325" class="LineNr">325 </span>  <span class="Delimiter">}</span>
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diff --git a/html/099hardware_checks.cc.html b/html/099hardware_checks.cc.html
index bc35d917..1ccce17b 100644
--- a/html/099hardware_checks.cc.html
+++ b/html/099hardware_checks.cc.html
@@ -111,7 +111,7 @@ if ('onhashchange' in window) {
 <span id="L48" class="LineNr">48 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">const</span> reagent&amp; expected_ing = callee<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
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 <span id="L50" class="LineNr">50 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>*Real_hardware_types<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)</span> == *expected_ing<span class="Delimiter">.</span>type<span class="Delimiter">)</span>
-<span id="L51" class="LineNr">51 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;': only 'main' can pass 0 into a &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>expected_ing<span class="Delimiter">.</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L51" class="LineNr">51 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;': only 'main' can pass 0 into a &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>expected_ing<span class="Delimiter">.</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L52" class="LineNr">52 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L53" class="LineNr">53 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
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