Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #28554

Re: regex tidy

From Roedy Green <see_website@mindprod.com.invalid>
Newsgroups comp.lang.java.programmer
Subject Re: regex tidy
Date 2014-05-25 09:09 -0700
Organization Canadian Mind Products
Message-ID <ka54o950v4djcegnt1vsp6t2ii719u7oj5@4ax.com> (permalink)
References <375vn9th0bc1faa04eg136be53hbvfjq4v@4ax.com> <bubj58Fn42U1@mid.individual.net>

Show all headers | View raw

On Sat, 24 May 2014 14:55:03 +0200, Robert Klemme
<shortcutter@googlemail.com> wrote, quoted or indirectly quoted
someone who said :

>What does that mean?  Are you talking about merging common prefixes to 
>get a more efficient matching experience?  That might actually be done 
>by a regex engine if it detects this situation.


(cat|rabbit|dog|cow)
could be transformed to
(cat|cow|dog|rabbit)

for two reasons:
make the list easier to proofread
might help engine optimise handling the c in cat and cow in common.
-- 
Roedy Green Canadian Mind Products http://mindprod.com
Young man, in mathematics you don’t understand things.
You just get used to them. 
~ John von Neumann (born: 1903-12-28 died: 1957-02-08 at age: 53)

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

regex tidy Roedy Green <see_website@mindprod.com.invalid> - 2014-05-23 11:39 -0700
  Re: regex tidy leif.roar@invalid.com (Leif Roar Moldskred) - 2014-05-23 14:33 -0500
    Re: regex tidy Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2014-05-23 15:05 -0500
  Re: regex tidy Robert Klemme <shortcutter@googlemail.com> - 2014-05-24 14:55 +0200
    Re: regex tidy Roedy Green <see_website@mindprod.com.invalid> - 2014-05-25 09:09 -0700
      Re: regex tidy Robert Klemme <shortcutter@googlemail.com> - 2014-05-25 18:49 +0200
        Re: regex tidy leif.roar@invalid.com (Leif Roar Moldskred) - 2014-05-25 12:28 -0500
          Re: regex tidy Robert Klemme <shortcutter@googlemail.com> - 2014-05-25 19:55 +0200
          Re: regex tidy "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-05-26 12:12 +0100
    Re: regex tidy Roedy Green <see_website@mindprod.com.invalid> - 2014-05-25 09:10 -0700
    Re: regex tidy Roedy Green <see_website@mindprod.com.invalid> - 2014-05-25 09:13 -0700
    Re: regex tidy Roedy Green <see_website@mindprod.com.invalid> - 2014-05-25 09:21 -0700
      Re: regex tidy Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2014-05-25 13:31 -0500
        Re: regex tidy "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-05-26 12:31 +0100

csiph-web