36 lines
No EOL
1 KiB
C++
36 lines
No EOL
1 KiB
C++
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#include "Grammar.hpp"
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using namespace tp;
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ContextFreeGrammar::Arg::Arg(const String& id, bool terminal, bool epsilon) {
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mId = id;
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mIsTerminal = terminal;
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mIsEpsilon = epsilon;
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}
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const String& ContextFreeGrammar::Arg::getId() const { return mId; }
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bool ContextFreeGrammar::Arg::operator==(const Arg& in) const {
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return (mId == in.mId) && (mIsEpsilon == in.mIsEpsilon) && (mIsTerminal == in.mIsTerminal);
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}
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ContextFreeGrammar::Rule::Rule(const String& id, const InitialierList<Arg>& args) {
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mId = id;
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mArgs = args;
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}
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bool ContextFreeGrammar::Rule::operator==(const Rule& in) const { return (mId == in.mId) && (mArgs == in.mArgs); }
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bool ContextFreeGrammar::Rule::isProductive() const {
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for (auto arg : mArgs) {
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if (arg->getId() == mId) return false;
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}
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return true;
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}
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void ContextFreeGrammar::addRule(const Rule& rule) { mRules.append(rule); }
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void ContextFreeGrammar::addRule(const String& id, const InitialierList<Arg>& args) { addRule(Rule(id, args)); }
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void ContextFreeGrammar::setStart(const String& startRule) { mStartTerminal = startRule; } |