strrep

string strrep(string sub, string rep, string source)
// Pass: The sub string to replace, the rep string to write, the source to search through
// Return: The altered source
// Assmes: Valid strings
{
	int i;
	string dest = "";
	int count = 0;
	int sublen = len(sub);
	int sourcelen = len(source);
	for (i = 0; i < sourcelen; i++)
	{
		if (!strcmp(sub, mid(source, i, sublen)))
		{
			dest = dest + mid(source, i - count, count) + rep;
			count = 0;
			i += sublen - 1;
		}
		else count++;
	}
	return dest + right(source, count);
}