LL1Parser::LL1Parser(list<Token> tokens) :_tokens(tokens)
{
_Done = false;
Token push("$", TokenType::UNDEFINED);
_tokens.push_back(push);
_currentToken = _tokens.begin();
buildRuleTable();
}
void
ZDriver::writeParserUtil( std::ostream &out )
{
emitFuncBreak( out );
out << "void " << myPimplName << "::popStack( void )" << endl();
out << "{" << endl();
out << " callDtor( myStack.top().first.second, myStack.top().second );"
<< endl();
out << " myStack.pop();" << endl();
out << "}" << endl();
emitFuncBreak( out );
out << "ParserAct " << myPimplName
<< "::findParserAction( int &newVal, int tok )" << endl();
out << "{" << endl();
out << " int stateNum;" << endl();
out << " ParserAct retval = PA_NOP;" << endl();
out << " bool found = false;" << endl();
out << endl();
out << " stateNum = myStack.empty() ? 0 : myStack.top().first.first;"
<< endl();
out << " ActionMap::iterator i = myStates[stateNum].find( tok );"
<< endl();
out << " if ( tok >= 0 && tok <= "
<< SymbolTable::get()->getNumSymbols() << " )" << endl();
out << " {" << endl();
out << " if ( i != myStates[stateNum].end() )" << endl();
out << " {" << endl();
out << " retval = (*i).second.first;" << endl();
out << " newVal = (*i).second.second;" << endl();
out << " found = true;" << endl();
out << " }" << endl();
out << " }" << endl();
out << " else if ( ! myStates[stateNum].empty() )" << endl();
out << " {" << endl();
out << " retval = PA_NOP;" << endl();
out << " newVal = 0;" << endl();
out << " found = true;" << endl();
out << " }" << endl();
out << endl();
out << " if ( ! found )" << endl();
out << " {" << endl();
out << " retval = myStateDefaultActions[stateNum].first;" << endl();
out << " newVal = myStateDefaultActions[stateNum].second;" << endl();
out << " }" << endl();
out << " return retval;" << endl();
out << "}" << endl();
emitFuncBreak( out );
writeStateTable( out );
writeRuleTable( out );
emitFuncBreak( out );
out << "void " << myPimplName << "::initTables( void )" << endl();
out << "{" << endl();
buildStateTable( out );
buildRuleTable( out );
out << "}" << endl();
}
