Method ParseAndAddLine

source/script.cpp:4218–4998

ResultType Script::ParseAndAddLine(LPTSTR aLineText, ActionTypeType aActionType, LPTSTR aLiteralMap, size_t aLiteralMapLength)
// Returns OK or FAIL.
// aLineText needs to be a string whose contents are modifiable (though the string won't be made any
// longer than it is now, so it doesn't have to be of size LINE_SIZE). This helps performance by
// allowing the string to be split into sections without having to make temporary copies.
// aLineText must point to a buffer with room to append "()" if it may contain a function call statement
// (which is only possible when aActionType is ACT_INVALID/omitted or an ACT with possible subaction).
{
#ifdef _DEBUG
	if (!aLineText || !*aLineText && !aActionType)
		return ScriptError(_T("DEBUG: ParseAndAddLine() called incorrectly."));
#endif
	size_t line_length = _tcslen(aLineText); // Length is needed in a couple of places.

	TCHAR action_name[MAX_VAR_NAME_LENGTH + 1], *end_marker;
	if (aActionType) // Currently can be ACT_EXPRESSION or ACT_HOTKEY_IF.
	{
		*action_name = '\0';
		end_marker = NULL; // Indicate that there is no action to mark the end of.
	}
	else // We weren't called recursively from self, nor is it ACT_EXPRESSION, so set action_name and end_marker the normal way.
	{
		for (;;) // A loop with only one iteration so that "break" can be used instead of a lot of nested if's.
		{
			int declare_type;
			LPTSTR cp;
			if (!_tcsnicmp(aLineText, _T("Global"), 6))
			{
				cp = aLineText + 6; // The character after the declaration word.
				declare_type = VAR_DECLARE_GLOBAL;
			}
			else
			{
				if (!_tcsnicmp(aLineText, _T("Local"), 5))
				{
					cp = aLineText + 5; // The character after the declaration word.
					declare_type = VAR_DECLARE_LOCAL;
				}
				else if (!_tcsnicmp(aLineText, _T("Static"), 6)) // Static also implies local (for functions that default to global).
				{
					cp = aLineText + 6; // The character after the declaration word.
					declare_type = VAR_DECLARE_STATIC;
				}
				else // It's not the word "global", "local", or static, so no further checking is done.
					break;
			}

			if (*cp && !IS_SPACE_OR_TAB(*cp)) // There is a character following the word local but it's not a space or tab.
				break; // It doesn't qualify as being the global or local keyword because it's something like global2.
			if (*cp && *(cp = omit_leading_whitespace(cp))) // Second *cp is probably always non-null since caller rtrimmed it, but even if not it's handled correctly.
			{
				if (!IS_IDENTIFIER_CHAR(*cp))
					break;
			}
			else // It's the word "global", "local", "static" by itself.
			{
				// Any combination of declarations is allowed here for simplicity, but only declarations can
				// appear above this line: