void AstMatching::generateMatchOperationsSequence() {
extern int matcherparserparse();
extern MatchOperationList* matchOperationsSequence;
InitializeParser(_matchExpression);
matcherparserparse();
// clean up possibly existing match operations sequence
#if 0
// TODO: proper destruction not finished yet
if(_matchOperationsSequence)
delete _matchOperationsSequence;
#endif
_matchOperationsSequence=matchOperationsSequence;
FinishParser();
}
int InfixParserTree::RunParser()
{
//Check if the parser has been run before
if(tree_node_list.size() != 0)
return true;
if(InitializeParser() == false)
{
logfile_manager->WriteErrorMessage("InfixParserTree", "Could not initialize parser");
return false;
}
int iteration_count = 0;
int found_parseable_expression = true;
while(found_parseable_expression && iteration_count < 1000)
{
found_parseable_expression = false;
//Parse plus/minus
if(ParseUntilDone(found_parseable_expression, &InfixParserTree::ParsePlusMinus) == false)
{
logfile_manager->WriteErrorMessage("InfixParserTree", "Could not do plus-minus parsing");
return false;
}
//Parse times/divide
if(ParseUntilDone(found_parseable_expression, &InfixParserTree::ParseTimesDivide) == false)
{
logfile_manager->WriteErrorMessage("InfixParserTree", "Could not do times-divide parsing");
return false;
}
//Parse power
if(ParseUntilDone(found_parseable_expression, &InfixParserTree::ParsePower) == false)
{
logfile_manager->WriteErrorMessage("InfixParserTree", "Could not do power parsing");
return false;
}
//Parse parenthesis
if(ParseUntilDone(found_parseable_expression, &InfixParserTree::ParseParenthesis) == false)
{
logfile_manager->WriteErrorMessage("InfixParserTree", "Could not do parenthesis parsing");
return false;
}
//Parse functions
if(ParseUntilDone(found_parseable_expression, &InfixParserTree::ParseFunction) == false)
{
logfile_manager->WriteErrorMessage("InfixParserTree", "Could not do function parsing");
return false;
}
iteration_count++;
}
if(UpdateSymbolValues() == false)
{
logfile_manager->WriteErrorMessage("InfixParserTree", "Could not update symbol values");
return false;
}
return true;
}
