Chris Rebert wrote:
On Tue, Mar 3, 2009 at 9:05 AM, Ivan <i...@invalid.net> wrote:
Hello everyone,
I know this is not a direct python question, forgive me for that, but
maybe some of you will still be able to help me. I've been told that
for my application it would be best to learn a scripting language, so
I looked around and found perl and python to be the nice. Their syntax
and "way" is not similar, though.
So, I was wondering, could any of you please elaborate on the
following, as to ease my dilemma:
1. Although it is all relatively similar, there are differences
between regexes of these two. Which do you believe is the more
powerful variant (maybe an example) ?
I would think that either they're currently equal in power or Perl's
are just slightly more powerful, as pretty much all languages have
basically copied Perl's regular expressions almost exactly. If you're
talking about Perl6, then combined with the new "rules" feature it's
much more powerful; however, like Perl's regular expressions, someone
will probably write a library like pcre that implements it for all
other languages, so it'll probably just be a matter of syntax.
Python 2.7's regex will include possessive quantifiers, atomic groups,
variable-length lookbehinds, and Unicode properties (at least the common
ones), amongst other things.
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