On 2010-01-11, Steven D'Aprano <st...@remove-this-cybersource.com.au> wrote:
[regarding profiling results] > I think you'll find that Python's regex engine is pretty much > optimised as well as it can be, short of a major re-write. But > to quote Jamie Zawinski: > > Some people, when confronted with a problem, think "I know, > I'll use regular expressions." Now they have two problems. > > The best way to optimize regexes is to use them only when > necessary. They are inherently an expensive operation, a > mini-programming language of it's own. Naturally some regexes > are more expensive than others: some can be *really* > expensive, some are not. And for all pracitacal purposes, you can't tell which is which. At least not for any value of "you" I've run into... -- Grant Edwards grante Yow! I'm in direct contact at with many advanced fun visi.com CONCEPTS. -- http://mail.python.org/mailman/listinfo/python-list