Function find_rule

extlibs/soloud/src/audiosource/speech/tts.cpp:1096–1142

static int find_rule(darray *arg, char *word, int index, Rule *rules)
{
	for (;;)                         /* Search for the rule */
	{
		Rule *rule;
		const char *left,
			*match,
			*right,
			*output;
		int remainder;
		rule = rules++;
		match = (*rule)[1];

		if (match == 0)
			/* bad symbol! */
		{
			fprintf(stderr, "Error: Can't find rule for: '%c' in \"%s\"\n",
				word[index], word);
			return index + 1;            /* Skip it! */
		}

		for (remainder = index; *match != '\0'; match++, remainder++)
		{
			if (*match != word[remainder])
				break;
		}

		if (*match != '\0')
			continue;                     /* found missmatch */

		left = (*rule)[0];

		right = (*rule)[2];

		if (!leftmatch(left, &word[index - 1]))
			continue;

		if (!rightmatch(right, &word[remainder]))
			continue;

		output = (*rule)[3];

		phone_cat(arg, output);

		return remainder;
	}
}

static void guess_word(darray *arg, char *word)
{