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<pre id='vimCodeElement'>
<span class="Comment">//: A program is a book of 'recipes' (functions)</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Comment">//: Each recipe is stored at a specific page number, or ordinal.</span>
map<recipe_ordinal<span class="Delimiter">,</span> recipe> Recipe<span class="Delimiter">;</span>
<span class="Comment">//: You can also refer to each recipe by its name.</span>
map<string<span class="Delimiter">,</span> recipe_ordinal> Recipe_ordinal<span class="Delimiter">;</span>
recipe_ordinal Next_recipe_ordinal = <span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Comment">//: Ordinals are like numbers, except you can't do arithmetic on them. Ordinal</span>
<span class="Comment">//: 1 is not less than 2, it's just different. Phone numbers are ordinals;</span>
<span class="Comment">//: adding two phone numbers is meaningless. Here each recipe does something</span>
<span class="Comment">//: incommensurable with any other recipe.</span>
<span class="Delimiter">:(after "Types")</span>
<span class="Normal">typedef</span> <span class="Normal">int</span> recipe_ordinal<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Types")</span>
<span class="Comment">// Recipes are lists of instructions. To perform or 'run' a recipe, the</span>
<span class="Comment">// computer runs its instructions.</span>
<span class="Normal">struct</span> recipe <span class="Delimiter">{</span>
string name<span class="Delimiter">;</span>
vector<instruction> steps<span class="Delimiter">;</span>
<span class="Comment">// End recipe Fields</span>
recipe<span class="Delimiter">();</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(before "struct recipe")</span>
<span class="Comment">// Each instruction is either of the form:</span>
<span class="Comment">// product1, product2, product3, ... <- operation ingredient1, ingredient2, ingredient3, ...</span>
<span class="Comment">// or just a single 'label' starting with a non-alphanumeric character</span>
<span class="Comment">// +label</span>
<span class="Comment">// Labels don't do anything, they're just waypoints.</span>
<span class="Normal">struct</span> instruction <span class="Delimiter">{</span>
<span class="Normal">bool</span> is_label<span class="Delimiter">;</span>
string label<span class="Delimiter">;</span> <span class="Comment">// only if is_label</span>
string name<span class="Delimiter">;</span> <span class="Comment">// only if !is_label</span>
string old_name<span class="Delimiter">;</span> <span class="Comment">// before our automatic rewrite rules</span>
string original_string<span class="Delimiter">;</span> <span class="Comment">// for error messages</span>
recipe_ordinal operation<span class="Delimiter">;</span> <span class="Comment">// get(Recipe_ordinal, name)</span>
vector<reagent> ingredients<span class="Delimiter">;</span> <span class="Comment">// only if !is_label</span>
vector<reagent> products<span class="Delimiter">;</span> <span class="Comment">// only if !is_label</span>
<span class="Comment">// End instruction Fields</span>
instruction<span class="Delimiter">();</span>
<span class="Normal">void</span> clear<span class="Delimiter">();</span>
<span class="Normal">bool</span> is_empty<span class="Delimiter">();</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(before "struct instruction")</span>
<span class="Comment">// Ingredients and products are a single species -- a reagent. Reagents refer</span>
<span class="Comment">// either to numbers or to locations in memory along with 'type' tags telling</span>
<span class="Comment">// us how to interpret them. They also can contain arbitrary other lists of</span>
<span class="Comment">// properties besides types, but we're getting ahead of ourselves.</span>
<span class="Normal">struct</span> reagent <span class="Delimiter">{</span>
string original_string<span class="Delimiter">;</span>
string name<span class="Delimiter">;</span>
type_tree* type<span class="Delimiter">;</span>
vector<pair<string<span class="Delimiter">,</span> string_tree*> > properties<span class="Delimiter">;</span> <span class="Comment">// can't be a map because the string_tree sometimes needs to be NULL, which can be confusing</span>
<span class="Normal">double</span> value<span class="Delimiter">;</span>
<span class="Normal">bool</span> initialized<span class="Delimiter">;</span>
<span class="Comment">// End reagent Fields</span>
reagent<span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">);</span>
reagent<span class="Delimiter">()</span> :type<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> value<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> initialized<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span>
~reagent<span class="Delimiter">();</span>
<span class="Normal">void</span> clear<span class="Delimiter">();</span>
reagent<span class="Delimiter">(</span><span class="Normal">const</span> reagent& old<span class="Delimiter">);</span>
reagent& <span class="Normal">operator</span>=<span class="Delimiter">(</span><span class="Normal">const</span> reagent& old<span class="Delimiter">);</span>
<span class="Normal">void</span> set_value<span class="Delimiter">(</span><span class="Normal">double</span> v<span class="Delimiter">)</span> <span class="Delimiter">{</span> value = v<span class="Delimiter">;</span> initialized = <span class="Constant">true</span><span class="Delimiter">;</span> <span class="Delimiter">}</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(before "struct reagent")</span>
<span class="Comment">// Types can range from a simple type ordinal, to arbitrarily complex trees of</span>
<span class="Comment">// type parameters, like (map (address array character) (list number))</span>
<span class="Normal">struct</span> type_tree <span class="Delimiter">{</span>
string name<span class="Delimiter">;</span>
type_ordinal value<span class="Delimiter">;</span>
type_tree* left<span class="Delimiter">;</span>
type_tree* right<span class="Delimiter">;</span>
~type_tree<span class="Delimiter">();</span>
type_tree<span class="Delimiter">(</span><span class="Normal">const</span> type_tree& old<span class="Delimiter">);</span>
<span class="Comment">// simple: type ordinal</span>
<span class="Normal">explicit</span> type_tree<span class="Delimiter">(</span>string name<span class="Delimiter">);</span>
type_tree<span class="Delimiter">(</span>string name<span class="Delimiter">,</span> type_ordinal v<span class="Delimiter">)</span> :name<span class="Delimiter">(</span>name<span class="Delimiter">),</span> value<span class="Delimiter">(</span>v<span class="Delimiter">),</span> left<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> right<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span>
<span class="Comment">// intermediate: list of type ordinals</span>
type_tree<span class="Delimiter">(</span>string name<span class="Delimiter">,</span> type_ordinal v<span class="Delimiter">,</span> type_tree* r<span class="Delimiter">)</span> :name<span class="Delimiter">(</span>name<span class="Delimiter">),</span> value<span class="Delimiter">(</span>v<span class="Delimiter">),</span> left<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> right<span class="Delimiter">(</span>r<span class="Delimiter">)</span> <span class="Delimiter">{}</span>
type_tree<span class="Delimiter">(</span>string name<span class="Delimiter">,</span> type_tree* r<span class="Delimiter">);</span>
<span class="Comment">// advanced: tree containing type ordinals</span>
type_tree<span class="Delimiter">(</span>type_tree* l<span class="Delimiter">,</span> type_tree* r<span class="Delimiter">)</span> :value<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> left<span class="Delimiter">(</span>l<span class="Delimiter">),</span> right<span class="Delimiter">(</span>r<span class="Delimiter">)</span> <span class="Delimiter">{}</span>
<span class="Delimiter">};</span>
<span class="Normal">struct</span> string_tree <span class="Delimiter">{</span>
string value<span class="Delimiter">;</span>
string_tree* left<span class="Delimiter">;</span>
string_tree* right<span class="Delimiter">;</span>
~string_tree<span class="Delimiter">();</span>
string_tree<span class="Delimiter">(</span><span class="Normal">const</span> string_tree& old<span class="Delimiter">);</span>
<span class="Comment">// simple: flat string</span>
<span class="Normal">explicit</span> string_tree<span class="Delimiter">(</span>string v<span class="Delimiter">)</span> :value<span class="Delimiter">(</span>v<span class="Delimiter">),</span> left<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> right<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span>
<span class="Comment">// intermediate: list of strings</span>
string_tree<span class="Delimiter">(</span>string v<span class="Delimiter">,</span> string_tree* r<span class="Delimiter">)</span> :value<span class="Delimiter">(</span>v<span class="Delimiter">),</span> left<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> right<span class="Delimiter">(</span>r<span class="Delimiter">)</span> <span class="Delimiter">{}</span>
<span class="Comment">// advanced: tree containing strings</span>
string_tree<span class="Delimiter">(</span>string_tree* l<span class="Delimiter">,</span> string_tree* r<span class="Delimiter">)</span> :left<span class="Delimiter">(</span>l<span class="Delimiter">),</span> right<span class="Delimiter">(</span>r<span class="Delimiter">)</span> <span class="Delimiter">{}</span>
<span class="Delimiter">};</span>
<span class="Comment">// End type_tree Definition</span>
<span class="Delimiter">:(code)</span>
type_tree::type_tree<span class="Delimiter">(</span>string name<span class="Delimiter">)</span> :name<span class="Delimiter">(</span>name<span class="Delimiter">),</span> value<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> name<span class="Delimiter">)),</span> left<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> right<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span>
type_tree::type_tree<span class="Delimiter">(</span>string name<span class="Delimiter">,</span> type_tree* r<span class="Delimiter">)</span> :name<span class="Delimiter">(</span>name<span class="Delimiter">),</span> value<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> name<span class="Delimiter">)),</span> left<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> right<span class="Delimiter">(</span>r<span class="Delimiter">)</span> <span class="Delimiter">{}</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Comment">// Locations refer to a common 'memory'. Each location can store a number.</span>
map<<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">double</span>> Memory<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Setup")</span>
Memory<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span class="Delimiter">:(after "Types")</span>
<span class="Comment">// Mu types encode how the numbers stored in different parts of memory are</span>
<span class="Comment">// interpreted. A location tagged as a 'character' type will interpret the</span>
<span class="Comment">// value 97 as the letter 'a', while a different location of type 'number'</span>
<span class="Comment">// would not.</span>
<span class="Comment">//</span>
<span class="Comment">// Unlike most computers today, mu stores types in a single big table, shared</span>
<span class="Comment">// by all the mu programs on the computer. This is useful in providing a</span>
<span class="Comment">// seamless experience to help understand arbitrary mu programs.</span>
<span class="Normal">typedef</span> <span class="Normal">int</span> type_ordinal<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Globals")</span>
map<string<span class="Delimiter">,</span> type_ordinal> Type_ordinal<span class="Delimiter">;</span>
map<type_ordinal<span class="Delimiter">,</span> type_info> Type<span class="Delimiter">;</span>
type_ordinal Next_type_ordinal = <span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> setup_types<span class="Delimiter">()</span> <span class="Delimiter">{</span>
Type<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> Type_ordinal<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"literal"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
Next_type_ordinal = <span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Comment">// Mu Types Initialization</span>
type_ordinal number = put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"number"</span><span class="Delimiter">,</span> Next_type_ordinal++<span class="Delimiter">);</span>
get_or_insert<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> number<span class="Delimiter">).</span>name = <span class="Constant">"number"</span><span class="Delimiter">;</span>
put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"location"</span><span class="Delimiter">,</span> number<span class="Delimiter">);</span> <span class="Comment">// synonym of number to indicate we only care about its size</span>
type_ordinal address = put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"address"</span><span class="Delimiter">,</span> Next_type_ordinal++<span class="Delimiter">);</span>
get_or_insert<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> address<span class="Delimiter">).</span>name = <span class="Constant">"address"</span><span class="Delimiter">;</span>
type_ordinal boolean = put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"boolean"</span><span class="Delimiter">,</span> Next_type_ordinal++<span class="Delimiter">);</span>
get_or_insert<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> boolean<span class="Delimiter">).</span>name = <span class="Constant">"boolean"</span><span class="Delimiter">;</span>
type_ordinal character = put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"character"</span><span class="Delimiter">,</span> Next_type_ordinal++<span class="Delimiter">);</span>
get_or_insert<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> character<span class="Delimiter">).</span>name = <span class="Constant">"character"</span><span class="Delimiter">;</span>
<span class="Comment">// Array types are a special modifier to any other type. For example,</span>
<span class="Comment">// array:number or array:address:boolean.</span>
type_ordinal array = put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"array"</span><span class="Delimiter">,</span> Next_type_ordinal++<span class="Delimiter">);</span>
get_or_insert<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> array<span class="Delimiter">).</span>name = <span class="Constant">"array"</span><span class="Delimiter">;</span>
<span class="Comment">// End Mu Types Initialization</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> teardown_types<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Normal">for</span> <span class="Delimiter">(</span>map<type_ordinal<span class="Delimiter">,</span> type_info>::iterator p = Type<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Type<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</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 < SIZE<span class="Delimiter">(</span>p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>elements<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
Type_ordinal<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End One-time Setup")</span>
setup_types<span class="Delimiter">();</span>
atexit<span class="Delimiter">(</span>teardown_types<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Types")</span>
<span class="Comment">// You can construct arbitrary new types. New types are either 'containers'</span>
<span class="Comment">// with multiple 'elements' of other types, or 'exclusive containers' containing</span>
<span class="Comment">// one of multiple 'variants'. (These are similar to C structs and unions,</span>
<span class="Comment">// respectively, though exclusive containers implicitly include a tag element</span>
<span class="Comment">// recording which variant they should be interpreted as.)</span>
<span class="Comment">//</span>
<span class="Comment">// For example, storing bank balance and name for an account might require a</span>
<span class="Comment">// container, but if bank accounts may be either for individuals or groups,</span>
<span class="Comment">// with different properties for each, that may require an exclusive container</span>
<span class="Comment">// whose variants are individual-account and joint-account containers.</span>
<span class="Normal">enum</span> kind_of_type <span class="Delimiter">{</span>
PRIMITIVE<span class="Delimiter">,</span>
CONTAINER<span class="Delimiter">,</span>
EXCLUSIVE_CONTAINER
<span class="Delimiter">};</span>
<span class="Normal">struct</span> type_info <span class="Delimiter">{</span>
string name<span class="Delimiter">;</span>
kind_of_type kind<span class="Delimiter">;</span>
vector<reagent> elements<span class="Delimiter">;</span>
<span class="Comment">// End type_info Fields</span>
type_info<span class="Delimiter">()</span> :kind<span class="Delimiter">(</span>PRIMITIVE<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// End type_info Constructor</span>
<span class="Delimiter">}</span>
<span class="Delimiter">};</span>
<span class="Normal">enum</span> primitive_recipes <span class="Delimiter">{</span>
IDLE = <span class="Constant">0</span><span class="Delimiter">,</span>
COPY<span class="Delimiter">,</span>
<span class="Comment">// End Primitive Recipe Declarations</span>
MAX_PRIMITIVE_RECIPES<span class="Delimiter">,</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(code)</span>
<span class="Comment">//: It's all very well to construct recipes out of other recipes, but we need</span>
<span class="Comment">//: to know how to do *something* out of the box. For the following</span>
<span class="Comment">//: recipes there are only codes, no entries in the book, because mu just knows</span>
<span class="Comment">//: what to do for them.</span>
<span class="Normal">void</span> setup_recipes<span class="Delimiter">()</span> <span class="Delimiter">{</span>
Recipe<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> Recipe_ordinal<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"idle"</span><span class="Delimiter">,</span> IDLE<span class="Delimiter">);</span>
<span class="Comment">// Primitive Recipe Numbers</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"copy"</span><span class="Delimiter">,</span> COPY<span class="Delimiter">);</span>
<span class="Comment">// End Primitive Recipe Numbers</span>
<span class="Delimiter">}</span>
<span class="Comment">//: We could just reset the recipe table after every test, but that gets slow</span>
<span class="Comment">//: all too quickly. Instead, initialize the common stuff just once at</span>
<span class="Comment">//: startup. Later layers will carefully undo each test's additions after</span>
<span class="Comment">//: itself.</span>
<span class="Delimiter">:(before "End One-time Setup")</span>
setup_recipes<span class="Delimiter">();</span>
assert<span class="Delimiter">(</span>MAX_PRIMITIVE_RECIPES < <span class="Constant">200</span><span class="Delimiter">);</span> <span class="Comment">// level 0 is primitives; until 199</span>
Next_recipe_ordinal = <span class="Constant">200</span><span class="Delimiter">;</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"main"</span><span class="Delimiter">,</span> Next_recipe_ordinal++<span class="Delimiter">);</span>
<span class="Comment">// End Load Recipes</span>
<span class="Delimiter">:(before "End Commandline Parsing")</span>
assert<span class="Delimiter">(</span>Next_recipe_ordinal < <span class="Constant">1000</span><span class="Delimiter">);</span> <span class="Comment">// recipes being tested didn't overflow into test space</span>
<span class="Delimiter">:(before "End Setup")</span>
Next_recipe_ordinal = <span class="Constant">1000</span><span class="Delimiter">;</span> <span class="Comment">// consistent new numbers for each test</span>
<span class="Comment">//: One final detail: tests can modify our global tables of recipes and types,</span>
<span class="Comment">//: so we need some way to clean up after each test is done so it doesn't</span>
<span class="Comment">//: influence later ones.</span>
<span class="Delimiter">:(before "End Globals")</span>
map<string<span class="Delimiter">,</span> recipe_ordinal> Recipe_ordinal_snapshot<span class="Delimiter">;</span>
map<recipe_ordinal<span class="Delimiter">,</span> recipe> Recipe_snapshot<span class="Delimiter">;</span>
map<string<span class="Delimiter">,</span> type_ordinal> Type_ordinal_snapshot<span class="Delimiter">;</span>
map<type_ordinal<span class="Delimiter">,</span> type_info> Type_snapshot<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End One-time Setup")</span>
save_snapshots<span class="Delimiter">();</span>
<span class="Delimiter">:(before "End Setup")</span>
restore_snapshots<span class="Delimiter">();</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> save_snapshots<span class="Delimiter">()</span> <span class="Delimiter">{</span>
Recipe_ordinal_snapshot = Recipe_ordinal<span class="Delimiter">;</span>
Recipe_snapshot = Recipe<span class="Delimiter">;</span>
Type_ordinal_snapshot = Type_ordinal<span class="Delimiter">;</span>
Type_snapshot = Type<span class="Delimiter">;</span>
<span class="Comment">// End save_snapshots</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> restore_snapshots<span class="Delimiter">()</span> <span class="Delimiter">{</span>
Recipe = Recipe_snapshot<span class="Delimiter">;</span>
Recipe_ordinal = Recipe_ordinal_snapshot<span class="Delimiter">;</span>
Type_ordinal = Type_ordinal_snapshot<span class="Delimiter">;</span>
Type = Type_snapshot<span class="Delimiter">;</span>
<span class="Comment">// End restore_snapshots</span>
<span class="Delimiter">}</span>
^L
<span class="SalientComment">//:: Helpers</span>
<span class="Delimiter">:(code)</span>
recipe::recipe<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Comment">// End recipe Constructor</span>
<span class="Delimiter">}</span>
instruction::instruction<span class="Delimiter">()</span> :is_label<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">),</span> operation<span class="Delimiter">(</span>IDLE<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// End instruction Constructor</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> instruction::clear<span class="Delimiter">()</span> <span class="Delimiter">{</span> is_label=<span class="Constant">false</span><span class="Delimiter">;</span> label<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> name<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> old_name<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> operation=IDLE<span class="Delimiter">;</span> ingredients<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> products<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> original_string<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> <span class="Delimiter">}</span>
<span class="Normal">bool</span> instruction::is_empty<span class="Delimiter">()</span> <span class="Delimiter">{</span> <span class="Identifier">return</span> !is_label && name<span class="Delimiter">.</span>empty<span class="Delimiter">();</span> <span class="Delimiter">}</span>
<span class="Comment">// Reagents have the form <name>:<type>:<type>:.../<property>/<property>/...</span>
reagent::reagent<span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> :original_string<span class="Delimiter">(</span>s<span class="Delimiter">),</span> type<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> value<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> initialized<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// Parsing reagent(string s)</span>
istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
in >> std::noskipws<span class="Delimiter">;</span>
<span class="Comment">// name and type</span>
istringstream first_row<span class="Delimiter">(</span>slurp_until<span class="Delimiter">(</span>in<span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">));</span>
first_row >> std::noskipws<span class="Delimiter">;</span>
name = slurp_until<span class="Delimiter">(</span>first_row<span class="Delimiter">,</span> <span class="Constant">':'</span><span class="Delimiter">);</span>
string_tree* type_names = parse_property_list<span class="Delimiter">(</span>first_row<span class="Delimiter">);</span>
type = new_type_tree<span class="Delimiter">(</span>type_names<span class="Delimiter">);</span>
<span class="Normal">delete</span> type_names<span class="Delimiter">;</span>
<span class="Comment">// special cases</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_integer<span class="Delimiter">(</span>name<span class="Delimiter">)</span> && type == <span class="Constant">NULL</span><span class="Delimiter">)</span>
type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">"literal"</span><span class="Delimiter">);</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>name == <span class="Constant">"_"</span> && type == <span class="Constant">NULL</span><span class="Delimiter">)</span>
type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">"literal"</span><span class="Delimiter">);</span>
<span class="Comment">// other properties</span>
slurp_properties<span class="Delimiter">(</span>in<span class="Delimiter">,</span> properties<span class="Delimiter">);</span>
<span class="Comment">// End Parsing reagent</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> slurp_properties<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> vector<pair<string<span class="Delimiter">,</span> string_tree*> >& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span>
istringstream row<span class="Delimiter">(</span>slurp_until<span class="Delimiter">(</span>in<span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">));</span>
row >> std::noskipws<span class="Delimiter">;</span>
string key = slurp_until<span class="Delimiter">(</span>row<span class="Delimiter">,</span> <span class="Constant">':'</span><span class="Delimiter">);</span>
string_tree* value = parse_property_list<span class="Delimiter">(</span>row<span class="Delimiter">);</span>
out<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string_tree*><span class="Delimiter">(</span>key<span class="Delimiter">,</span> value<span class="Delimiter">));</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
string_tree* parse_property_list<span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
skip_whitespace_but_not_newline<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
string_tree* result = <span class="Normal">new</span> string_tree<span class="Delimiter">(</span>slurp_until<span class="Delimiter">(</span>in<span class="Delimiter">,</span> <span class="Constant">':'</span><span class="Delimiter">));</span>
result<span class="Delimiter">-></span>right = parse_property_list<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
type_tree* new_type_tree<span class="Delimiter">(</span><span class="Normal">const</span> string_tree* properties<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!properties<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
type_tree* result = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!properties<span class="Delimiter">-></span>value<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span class="Normal">const</span> string& type_name = result<span class="Delimiter">-></span>name = properties<span class="Delimiter">-></span>value<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> type_name<span class="Delimiter">))</span>
result<span class="Delimiter">-></span>value = get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> type_name<span class="Delimiter">);</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_integer<span class="Delimiter">(</span>type_name<span class="Delimiter">))</span> <span class="Comment">// sometimes types will contain non-type tags, like numbers for the size of an array</span>
result<span class="Delimiter">-></span>value = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>properties<span class="Delimiter">-></span>value != <span class="Constant">"->"</span><span class="Delimiter">)</span> <span class="Comment">// used in recipe types</span>
result<span class="Delimiter">-></span>value = -<span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// should never happen; will trigger errors later</span>
<span class="Delimiter">}</span>
result<span class="Delimiter">-></span>left = new_type_tree<span class="Delimiter">(</span>properties<span class="Delimiter">-></span>left<span class="Delimiter">);</span>
result<span class="Delimiter">-></span>right = new_type_tree<span class="Delimiter">(</span>properties<span class="Delimiter">-></span>right<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">//: avoid memory leaks for the type tree</span>
reagent::reagent<span class="Delimiter">(</span><span class="Normal">const</span> reagent& other<span class="Delimiter">)</span> <span class="Delimiter">{</span>
original_string = other<span class="Delimiter">.</span>original_string<span class="Delimiter">;</span>
name = other<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
value = other<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
initialized = other<span class="Delimiter">.</span>initialized<span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>other<span class="Delimiter">.</span>properties<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string_tree*><span class="Delimiter">(</span>other<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>first<span class="Delimiter">,</span>
other<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second ? <span class="Normal">new</span> string_tree<span class="Delimiter">(</span>*other<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 class="Constant">NULL</span><span class="Delimiter">));</span>
<span class="Delimiter">}</span>
type = other<span class="Delimiter">.</span>type ? <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*other<span class="Delimiter">.</span>type<span class="Delimiter">)</span> : <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Comment">// End reagent Copy Constructor</span>
<span class="Delimiter">}</span>
type_tree::type_tree<span class="Delimiter">(</span><span class="Normal">const</span> type_tree& old<span class="Delimiter">)</span> <span class="Delimiter">{</span>
name = old<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
value = old<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
left = old<span class="Delimiter">.</span>left ? <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*old<span class="Delimiter">.</span>left<span class="Delimiter">)</span> : <span class="Constant">NULL</span><span class="Delimiter">;</span>
right = old<span class="Delimiter">.</span>right ? <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*old<span class="Delimiter">.</span>right<span class="Delimiter">)</span> : <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
string_tree::string_tree<span class="Delimiter">(</span><span class="Normal">const</span> string_tree& old<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// :value(old.value) {</span>
value = old<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
left = old<span class="Delimiter">.</span>left ? <span class="Normal">new</span> string_tree<span class="Delimiter">(</span>*old<span class="Delimiter">.</span>left<span class="Delimiter">)</span> : <span class="Constant">NULL</span><span class="Delimiter">;</span>
right = old<span class="Delimiter">.</span>right ? <span class="Normal">new</span> string_tree<span class="Delimiter">(</span>*old<span class="Delimiter">.</span>right<span class="Delimiter">)</span> : <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
reagent& reagent::<span class="Normal">operator</span>=<span class="Delimiter">(</span><span class="Normal">const</span> reagent& other<span class="Delimiter">)</span> <span class="Delimiter">{</span>
original_string = other<span class="Delimiter">.</span>original_string<span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>properties<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
<span class="Normal">if</span> <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 class="Normal">delete</span> properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second<span class="Delimiter">;</span>
properties<span class="Delimiter">.</span>clear<span class="Delimiter">();</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 < SIZE<span class="Delimiter">(</span>other<span class="Delimiter">.</span>properties<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string_tree*><span class="Delimiter">(</span>other<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>first<span class="Delimiter">,</span> other<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second ? <span class="Normal">new</span> string_tree<span class="Delimiter">(</span>*other<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 class="Constant">NULL</span><span class="Delimiter">));</span>
name = other<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
value = other<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
initialized = other<span class="Delimiter">.</span>initialized<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>type<span class="Delimiter">)</span> <span class="Normal">delete</span> type<span class="Delimiter">;</span>
type = other<span class="Delimiter">.</span>type ? <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*other<span class="Delimiter">.</span>type<span class="Delimiter">)</span> : <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Comment">// End reagent Copy Operator</span>
<span class="Identifier">return</span> *<span class="Normal">this</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
reagent::~reagent<span class="Delimiter">()</span> <span class="Delimiter">{</span>
clear<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> reagent::clear<span class="Delimiter">()</span> <span class="Delimiter">{</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 < SIZE<span class="Delimiter">(</span>properties<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <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 class="Delimiter">{</span>
<span class="Normal">delete</span> properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second<span class="Delimiter">;</span>
properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Normal">delete</span> type<span class="Delimiter">;</span>
type = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
type_tree::~type_tree<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Normal">delete</span> left<span class="Delimiter">;</span>
<span class="Normal">delete</span> right<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
string_tree::~string_tree<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Normal">delete</span> left<span class="Delimiter">;</span>
<span class="Normal">delete</span> right<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
string slurp_until<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> <span class="Normal">char</span> delim<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ostringstream out<span class="Delimiter">;</span>
<span class="Normal">char</span> c<span class="Delimiter">;</span>
<span class="Normal">while</span> <span class="Delimiter">(</span>in >> c<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>c == delim<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// drop the delim</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
out << c<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">bool</span> has_property<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">,</span> <span class="Normal">const</span> string& name<span class="Delimiter">)</span> <span class="Delimiter">{</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 < SIZE<span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>first == name<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
string_tree* property<span class="Delimiter">(</span><span class="Normal">const</span> reagent& r<span class="Delimiter">,</span> <span class="Normal">const</span> string& name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> p = <span class="Constant">0</span><span class="Delimiter">;</span> p != SIZE<span class="Delimiter">(</span>r<span class="Delimiter">.</span>properties<span class="Delimiter">);</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>p<span class="Delimiter">).</span>first == name<span class="Delimiter">)</span>
<span class="Identifier">return</span> r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>p<span class="Delimiter">).</span>second<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Normal">const</span> string Ignore<span class="Delimiter">(</span><span class="Constant">","</span><span class="Delimiter">);</span> <span class="Comment">// commas are ignored in mu except within [] strings</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> skip_whitespace_but_not_newline<span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>isspace<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()))</span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>Ignore<span class="Delimiter">.</span>find<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">())</span> != string::npos<span class="Delimiter">)</span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span class="Normal">else</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> dump_memory<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Normal">for</span> <span class="Delimiter">(</span>map<<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">double</span>>::iterator p = Memory<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Memory<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
cout << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << no_scientific<span class="Delimiter">(</span>p<span class="Delimiter">-></span>second<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="SalientComment">//:: Helpers for converting various values to string</span>
<span class="Comment">//: Use to_string() in trace(), and try to keep it stable from run to run.</span>
<span class="Comment">//: Use debug_string() while debugging, and throw everything into it.</span>
<span class="Comment">//: Use inspect() only for emitting a canonical format that can be parsed back</span>
<span class="Comment">//: into the value.</span>
string to_string<span class="Delimiter">(</span><span class="Normal">const</span> recipe& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ostringstream out<span class="Delimiter">;</span>
out << <span class="Constant">"recipe "</span> << r<span class="Delimiter">.</span>name << <span class="Constant">" [</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>r<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
out << <span class="Constant">" "</span> << to_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> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
out << <span class="Constant">"]</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
string debug_string<span class="Delimiter">(</span><span class="Normal">const</span> recipe& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ostringstream out<span class="Delimiter">;</span>
out << <span class="Constant">"- recipe "</span> << x<span class="Delimiter">.</span>name << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Comment">// Begin debug_string(recipe x)</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 < SIZE<span class="Delimiter">(</span>x<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">const</span> instruction& inst = x<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
out << <span class="Constant">"inst: "</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
out << <span class="Constant">" ingredients</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
out << <span class="Constant">" "</span> << 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> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
out << <span class="Constant">" products</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
out << <span class="Constant">" "</span> << 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> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
string to_original_string<span class="Delimiter">(</span><span class="Normal">const</span> instruction& inst<span class="Delimiter">)</span> <span class="Delimiter">{</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>
ostringstream out<span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">", "</span><span class="Delimiter">;</span>
out << 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 class="Delimiter">}</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 << <span class="Constant">" <- "</span><span class="Delimiter">;</span>
out << inst<span class="Delimiter">.</span>name << <span class="Constant">' '</span><span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">", "</span><span class="Delimiter">;</span>
out << 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 class="Delimiter">}</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
string to_string<span class="Delimiter">(</span><span class="Normal">const</span> instruction& inst<span class="Delimiter">)</span> <span class="Delimiter">{</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>
ostringstream out<span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">", "</span><span class="Delimiter">;</span>
out << 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>
<span class="Delimiter">}</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 << <span class="Constant">" <- "</span><span class="Delimiter">;</span>
out << inst<span class="Delimiter">.</span>name << <span class="Constant">' '</span><span class="Delimiter">;</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 < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">", "</span><span class="Delimiter">;</span>
out << 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>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
string to_string<span class="Delimiter">(</span><span class="Normal">const</span> reagent& r<span class="Delimiter">)</span> <span class="Delimiter">{</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">"_"</span><span class="Delimiter">;</span>
ostringstream out<span class="Delimiter">;</span>
out << <span class="Constant">"{"</span><span class="Delimiter">;</span>
out << r<span class="Delimiter">.</span>name << <span class="Constant">": "</span> << names_to_string<span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">);</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 class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>r<span class="Delimiter">.</span>properties<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
out << <span class="Constant">", </span><span class="cSpecial">\"</span><span class="Constant">"</span> << r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>first << <span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">: "</span> << to_string<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 class="Delimiter">}</span>
out << <span class="Constant">"}"</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Comment">// special name for ignoring some products</span>
<span class="Normal">inline</span> <span class="Normal">bool</span> is_dummy<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> x<span class="Delimiter">.</span>name == <span class="Constant">"_"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
string debug_string<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ostringstream out<span class="Delimiter">;</span>
out << x<span class="Delimiter">.</span>name << <span class="Constant">": "</span> << x<span class="Delimiter">.</span>value << <span class="Constant">' '</span> << to_string<span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> << <span class="Constant">" -- "</span> << to_string<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
string to_string<span class="Delimiter">(</span><span class="Normal">const</span> string_tree* property<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!property<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">"()"</span><span class="Delimiter">;</span>
ostringstream out<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!property<span class="Delimiter">-></span>left && !property<span class="Delimiter">-></span>right<span class="Delimiter">)</span>
<span class="Comment">// abbreviate a single-node tree to just its contents</span>
out << <span class="Constant">'"'</span> << property<span class="Delimiter">-></span>value << <span class="Constant">'"'</span><span class="Delimiter">;</span>
<span class="Normal">else</span>
dump<span class="Delimiter">(</span>property<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> dump<span class="Delimiter">(</span><span class="Normal">const</span> string_tree* x<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">-></span>left && !x<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
out << x<span class="Delimiter">-></span>value<span class="Delimiter">;</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
out << <span class="Constant">'('</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">const</span> string_tree* curr = x<span class="Delimiter">;</span> curr<span class="Delimiter">;</span> curr = curr<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr != x<span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-></span>left<span class="Delimiter">)</span>
dump<span class="Delimiter">(</span>curr<span class="Delimiter">-></span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Normal">else</span>
out << <span class="Constant">'"'</span> << curr<span class="Delimiter">-></span>value << <span class="Constant">'"'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
out << <span class="Constant">')'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
string to_string<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// abbreviate a single-node tree to just its contents</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!type<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">"NULLNULLNULL"</span><span class="Delimiter">;</span> <span class="Comment">// should never happen</span>
ostringstream out<span class="Delimiter">;</span>
dump<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> dump<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* x<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">-></span>left && !x<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
dump<span class="Delimiter">(</span>x<span class="Delimiter">-></span>value<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
out << <span class="Constant">'('</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">const</span> type_tree* curr = x<span class="Delimiter">;</span> curr<span class="Delimiter">;</span> curr = curr<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr != x<span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-></span>left<span class="Delimiter">)</span>
dump<span class="Delimiter">(</span>curr<span class="Delimiter">-></span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Normal">else</span>
dump<span class="Delimiter">(</span>curr<span class="Delimiter">-></span>value<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
out << <span class="Constant">')'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> dump<span class="Delimiter">(</span>type_ordinal type<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</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>
out << get<span class="Delimiter">(</span>Type<span class="Delimiter">,</span> type<span class="Delimiter">).</span>name<span class="Delimiter">;</span>
<span class="Normal">else</span>
out << <span class="Constant">"?"</span> << type<span class="Delimiter">;</span>
<span class="Delimiter">}</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 class="Comment">// abbreviate a single-node tree to just its contents</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!type<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">"()"</span><span class="Delimiter">;</span> <span class="Comment">// should never happen</span>
ostringstream out<span class="Delimiter">;</span>
dump_names<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> dump_names<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!type<span class="Delimiter">-></span>left && !type<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
out << <span class="Constant">'"'</span> << type<span class="Delimiter">-></span>name << <span class="Constant">'"'</span><span class="Delimiter">;</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
out << <span class="Constant">'('</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">const</span> type_tree* curr = type<span class="Delimiter">;</span> curr<span class="Delimiter">;</span> curr = curr<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr != type<span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-></span>left<span class="Delimiter">)</span>
dump_names<span class="Delimiter">(</span>curr<span class="Delimiter">-></span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Normal">else</span>
out << <span class="Constant">'"'</span> << curr<span class="Delimiter">-></span>name << <span class="Constant">'"'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
out << <span class="Constant">')'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</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 class="Comment">// abbreviate a single-node tree to just its contents</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!type<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">"NULLNULLNULL"</span><span class="Delimiter">;</span> <span class="Comment">// should never happen</span>
ostringstream out<span class="Delimiter">;</span>
dump_names_without_quotes<span class="Delimiter">(</span>type<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> dump_names_without_quotes<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!type<span class="Delimiter">-></span>left && !type<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
out << type<span class="Delimiter">-></span>name<span class="Delimiter">;</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
out << <span class="Constant">'('</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">const</span> type_tree* curr = type<span class="Delimiter">;</span> curr<span class="Delimiter">;</span> curr = curr<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr != type<span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">-></span>left<span class="Delimiter">)</span>
dump_names_without_quotes<span class="Delimiter">(</span>curr<span class="Delimiter">-></span>left<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span class="Normal">else</span>
out << curr<span class="Delimiter">-></span>name<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
out << <span class="Constant">')'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">//: helper to print numbers without excessive precision</span>
<span class="Delimiter">:(before "End Types")</span>
<span class="Normal">struct</span> no_scientific <span class="Delimiter">{</span>
<span class="Normal">double</span> x<span class="Delimiter">;</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 class="Delimiter">};</span>
<span class="Delimiter">:(code)</span>
ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> no_scientific x<span class="Delimiter">)</span> <span class="Delimiter">{</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 class="Comment">// Infinity or NaN</span>
os << x<span class="Delimiter">.</span>x<span class="Delimiter">;</span>
<span class="Identifier">return</span> os<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
ostringstream tmp<span class="Delimiter">;</span>
tmp << std::fixed << x<span class="Delimiter">.</span>x<span class="Delimiter">;</span>
os << trim_floating_point<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
<span class="Identifier">return</span> os<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
string trim_floating_point<span class="Delimiter">(</span><span class="Normal">const</span> string& in<span class="Delimiter">)</span> <span class="Delimiter">{</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">""</span><span class="Delimiter">;</span>
<span class="Normal">int</span> len = SIZE<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span class="Normal">while</span> <span class="Delimiter">(</span>len > <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>len-<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>
--len<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>len-<span class="Constant">1</span><span class="Delimiter">)</span> == <span class="Constant">'.'</span><span class="Delimiter">)</span> --len<span class="Delimiter">;</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> len<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> test_trim_floating_point<span class="Delimiter">()</span> <span class="Delimiter">{</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"0"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"000000000"</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"1.5"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"1.5000"</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"1.000001"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"1.000001"</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"23"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"23.000000"</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"23"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"23.0"</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"23"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"23."</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"23"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"23"</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"3"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"3.000000"</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"3"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"3.0"</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"3"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"3."</span><span class="Delimiter">));</span>
CHECK_EQ<span class="Delimiter">(</span><span class="Constant">"3"</span><span class="Delimiter">,</span> trim_floating_point<span class="Delimiter">(</span><span class="Constant">"3"</span><span class="Delimiter">));</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Includes")</span>
<span class="PreProc">#include </span><span class="Constant"><utility></span>
<span class="Normal">using</span> std::pair<span class="Delimiter">;</span>
<span class="PreProc">#include </span><span class="Constant"><math.h></span>
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