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parsing loop closed

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IlyaShurupov 2024-02-08 21:52:00 +03:00 • committed by Ilya Shurupov
parent aaeb6438a1
commit 30d4f194ba
8 changed files with 92 additions and 45 deletions
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15
Language/public/ContextFreeCompiler.hpp
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@ -8,7 +8,7 @@ namespace tp {
class ContextFreeCompiler {
public:
typedef ualni SymbolID;
typedef ualni SymbolId;
struct Item {
const ContextFreeGrammar::Rule* mRule = nullptr;
@ -16,12 +16,12 @@ namespace tp {
ualni numArgs() const { return 0; }
};
private:
struct Symbol {
String mId;
bool mIsTerminal = false;
};
private:
struct NonTerminal {
Buffer<ContextFreeGrammar::Rule*> rules;
Map<String, NonTerminal*> references;
@ -48,11 +48,14 @@ namespace tp {
};
public:
bool compile(const ContextFreeGrammar& grammar, FiniteStateAutomation<SymbolID, Item>& automata) {
bool compile(const ContextFreeGrammar& grammar, FiniteStateAutomation<SymbolId, Item>& automata) {
if (!init(grammar)) return false;
return true;
}
[[nodiscard]] const Buffer<Symbol>* getSymbols() const { return &mSymbols; }
[[nodiscard]] SymbolId getSymbolId(const String& name) const { return mSymbolLookup.get(name); }
private:
bool init(const ContextFreeGrammar& grammar) {
@ -135,7 +138,7 @@ namespace tp {
void initSymbols(const ContextFreeGrammar& grammar) {
for (auto nonTerminal : mNonTerminals) {
mSymbols.append({ nonTerminal->key, false });
mSymbolLookup.put(nonTerminal->key, SymbolID(mSymbols.size() - 1));
mSymbolLookup.put(nonTerminal->key, SymbolId(mSymbols.size() - 1));
for (auto rule : nonTerminal->val.rules) {
for (auto arg : *rule->getArgs()) {
@ -144,7 +147,7 @@ namespace tp {
mTerminals.put(arg->getId(), {});
mSymbols.append({ nonTerminal->key, true });
mSymbolLookup.put(nonTerminal->key, SymbolID(mSymbols.size() - 1));
mSymbolLookup.put(nonTerminal->key, SymbolId(mSymbols.size() - 1));
}
}
}
@ -154,6 +157,6 @@ namespace tp {
Map<String, NonTerminal> mNonTerminals;
Map<String, bool> mTerminals;
Buffer<Symbol> mSymbols;
Map<String, SymbolID> mSymbolLookup;
Map<String, SymbolId> mSymbolLookup;
};
}