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CFG compiler ini

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IlyaShurupov 2024-02-08 09:54:24 +03:00 • committed by Ilusha
parent 4f88c45c9e
commit a9a810c197
5 changed files with 154 additions and 46 deletions
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18
Language/private/Grammar.cpp
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@ -29,24 +29,6 @@ bool ContextFreeGrammar::Rule::isProductive() const {
return true;
}
bool ContextFreeGrammar::NonTerminal::isProductive() const {
for (auto rule : rules) {
if (rule->isProductive()) return true;
}
return false;
}
bool ContextFreeGrammar::NonTerminal::isLooped(Map<String, ualni>& processed, const String& id) const {
for (auto ref : referencing) {
if (processed.presents(ref->key)) return true;
}
processed.put(id, {});
for (auto ref : referencing) {
if (ref->val->isLooped(processed, ref->key)) return true;
}
return false;
}
void ContextFreeGrammar::addRule(const Rule& rule) { mRules.append(rule); }
void ContextFreeGrammar::addRule(const String& id, const InitialierList<Arg>& args) { addRule(Rule(id, args)); }