Almost every time I've had to do parsing of text over the last 5 years I've needed this function:
def find_first(s, subs, start=None, end=None): results = [s.find(sub, start, end) for sub in subs] results = [r for r in results if r != -1] if results: return min(results) return -1 It finds the first matching substring in the target string, if there is more than one match, it returns the position of the match that occurs at the lowest index in the string. Has anyone else had problems where they could have applied this function? It seems to me that python's find (and rfind, index, rindex) could be modified (the same way that startswith and endswith have been) to behave this way if a tuple were passed. Do other's agree that this would be desirable? Thanks, Dan -- http://mail.python.org/mailman/listinfo/python-list