Function leftmatch

extlibs/soloud/src/audiosource/speech/tts.cpp:849–945

}

static int leftmatch(
	const char *pattern,                    /* first char of pattern to match in text */
	const char *context)                     /* last char of text to be matched */

{
	const char *pat;
	const char *text;
	int count;

	if (*pattern == '\0')
		/* null string matches any context */
	{
		return 1;
	}

	/* point to last character in pattern string */
	count = (int)strlen(pattern);

	pat = pattern + (count - 1);

	text = context;

	for (; count > 0; pat--, count--)
	{
		/* First check for simple text or space */
		if (isalpha(*pat) || *pat == '\'' || *pat == ' ')
		{
			if (*pat != *text)
			{
				return 0;
			}
			else
			{
				text--;
				continue;
			}
		}

		switch (*pat)
		{

		case '#':                   /* One or more vowels */

			if (!isvowel(*text))
				return 0;

			text--;

			while (isvowel(*text))
				text--;

			break;

		case ':':                   /* Zero or more consonants */
			while (isconsonant(*text))
				text--;

			break;