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authorKartik K. Agaram <vc@akkartik.com>2015-04-17 09:56:04 -0700
committerKartik K. Agaram <vc@akkartik.com>2015-04-17 09:56:04 -0700
commit9da1b126cc017e14035b94c4615d211e5bc4bb21 (patch)
treea69baf5f6b75be08e68003a725d33cd478659b56 /cpp/029literal_string
parentc8087de8d99a4c3c4264eb89e4d0b35a4fb2c816 (diff)
downloadmu-9da1b126cc017e14035b94c4615d211e5bc4bb21.tar.gz
1072
Diffstat (limited to 'cpp/029literal_string')
-rw-r--r--cpp/029literal_string91
1 files changed, 0 insertions, 91 deletions
diff --git a/cpp/029literal_string b/cpp/029literal_string
deleted file mode 100644
index 9ca09115..00000000
--- a/cpp/029literal_string
+++ /dev/null
@@ -1,91 +0,0 @@
-//: Some instructions can take string literals for convenience.
-//:
-//: Instead of quotes, we'll use [] to delimit strings. That'll reduce the
-//: need for escaping since we can support nested brackets. And we can also
-//: imagine that 'recipe' might one day itself be defined in mu, doing its own
-//: parsing.
-
-//: First extend the mu parser to support string literals.
-:(scenario "string_literal")
-recipe main [
-  1:address:array:character <- new [abc def]
-]
-+parse:   ingredient: {name: "abc def", value: 0, type: 0, properties: ["abc def": "literal-string"]}
-
-:(scenario "string_literal_with_colons")
-recipe main [
-  1:address:array:character <- new [abc:def/ghi]
-]
-+parse:   ingredient: {name: "abc:def/ghi", value: 0, type: 0, properties: ["abc:def/ghi": "literal-string"]}
-
-:(before "End Mu Types Initialization")
-Type_number["literal-string"] = 0;
-
-:(after "string next_word(istream& in)")
-if (in.peek() == '[') return slurp_quoted(in);
-
-:(code)
-string slurp_quoted(istream& in) {
-  assert(!in.eof());
-  assert(in.peek() == '[');
-  ostringstream out;
-  int size = 0;
-  while (!in.eof()) {
-    char c = in.get();
-//?     cout << c << '\n'; //? 1
-    out << c;
-//?     cout << out.str() << "$\n"; //? 1
-    if (c == '[') ++size;
-    if (c == ']') --size;
-    if (size == 0) break;
-  }
-  return out.str();
-}
-
-:(after "reagent::reagent(string s)")
-//?   cout << s[0] << '\n'; //? 1
-  if (s[0] == '[') {
-    assert(s[s.size()-1] == ']');
-    // delete [] delimiters
-    s.erase(0, 1);
-    s.erase(s.size()-1, s.size());
-    name = s;
-    types.push_back(0);
-    properties.push_back(pair<string, vector<string> >(name, vector<string>()));
-    properties.back().second.push_back("literal-string");
-    return;
-  }
-
-:(scenario "string_literal_nested")
-recipe main [
-  1:address:array:character <- new [abc [def]]
-]
-+parse:   ingredient: {name: "abc [def]", value: 0, type: 0, properties: ["abc [def]": "literal-string"]}
-
-//: Next, extend 'new' to handle a string literal argument.
-:(scenario "new_string")
-recipe main [
-  1:address:array:character <- new [abc def]
-  2:character <- index 1:address:array:character/deref, 5:literal
-]
-# integer code for 'e'
-+mem: storing 101 in location 2
-
-:(before "End Mu Types Initialization")
-Type_number["character"] = Next_type_number++;
-
-:(after "case NEW" following "Primitive Recipe Implementations")
-if (instructions[pc].ingredients[0].properties[0].second[0] == "literal-string") {
-  // allocate an array just large enough for it
-  vector<int> result;
-  result.push_back(Current_routine->alloc);
-  write_memory(instructions[pc].products[0], result);
-  // assume that all characters fit in a single location
-//?   cout << "new string literal: " << instructions[pc].ingredients[0].name << '\n'; //? 1
-  Memory[Current_routine->alloc++] = instructions[pc].ingredients[0].name.size();
-  for (size_t i = 0; i < instructions[pc].ingredients[0].name.size(); ++i) {
-    Memory[Current_routine->alloc++] = instructions[pc].ingredients[0].name[i];
-  }
-  // mu strings are not null-terminated in memory
-  break;
-}