Function initPostfixExpression

pcsx2/DebugTools/ExpressionParser.cpp:210–412

}

bool initPostfixExpression(const char* infix, IExpressionFunctions* funcs, PostfixExpression& dest, std::string& error)
{
	int infixPos = 0;
	int infixLen = (int)strlen(infix);
	ExpressionOpcodeType lastOpcode = EXOP_NONE;
	std::vector<ExpressionOpcodeType> opcodeStack;
	dest.clear();

	while (infixPos < infixLen)
	{
		char first = tolower(infix[infixPos]);
		char subStr[256];
		int subPos = 0;

		if (first == ' ' || first == '\t')
		{
			infixPos++;
			continue;
		}

		if (first >= '0' && first <= '9')
		{
			while (isAlphaNum(infix[infixPos]) && subPos < static_cast<int>(sizeof(subStr)) - 1)
			{
				subStr[subPos++] = infix[infixPos++];
			}
			subStr[subPos] = 0;

			if(subPos == sizeof(subStr) - 1)
			{
				error = TRANSLATE("ExpressionParser", "Token too long.");
				return false;
			}

			u64 value;
			bool isFloat = false;
			if (parseFloat(subStr,subPos,value))
				isFloat = true;
			else if (!parseNumber(subStr,16,subPos,value))
			{
				error = StringUtil::StdStringFromFormat(
					TRANSLATE("ExpressionParser", "Invalid number \"%s\"."), subStr);
				return false;
			}

			dest.push_back(ExpressionPair(isFloat?EXCOMM_CONST_FLOAT:EXCOMM_CONST,value));
			lastOpcode = EXOP_NUMBER;
		} else if ((first >= 'a' && first <= 'z') || first == '@' || first == '_')
		{
			while (isAlphaNum(infix[infixPos]) && subPos < static_cast<int>(sizeof(subStr)) - 1)
			{
				subStr[subPos++] = infix[infixPos++];
			}
			subStr[subPos] = 0;

			if(subPos == sizeof(subStr) - 1)
			{
				error = TRANSLATE("ExpressionParser", "Token too long.");