Adam Atlas schrieb: > On Apr 16, 1:50 pm, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote: >> It's not. For the simplest of expressions one might come up with a >> relation between them, but even that would be hard. General case? No chance. > > I wouldn't say there's 'no chance'. It would require external parsing, > for sure, but if anything, it may only be impossible for unusual > cases.
The external parsing of regular expressions is cheap. But once you are there, how do you proceed? That's where it becomes hard. I can think of some simple strategies, but nothing that can't be easily found a counter-example for. Diez -- http://mail.python.org/mailman/listinfo/python-list
