GetTokenPosX

Finds the string position at which the occurance of a certain token offset happens. Useful with the also vaulted functions TokenLeft() and TokenRight().

int GetTokenPosX(string teststr, string tokens, int pos, int start)
// Pass: string to be tokenized, token delimiters, token number, starting position in the string.
// Return: Position of token within the string.
{
	int i, t;
	int count = 0;
	int length = len(teststr);
	int numtoks = len(tokens);
	if (pos == 0) return 0;
	for (i = start; i < length; i++)
	{
		for (t = 0; t < numtoks; t++)
		{
			if (!strcmp(mid(teststr, i, 1), mid(tokens, t, 1)))
			{
				count++;
				if (count == pos) return i;
				t = numtoks;
			}
		}
	}
	return i;
}