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

Groups > comp.lang.javascript > #14736

Re: reg expression

Show all headers | View raw

On Wed, 27 Jun 2012 17:48:15 -0400, "phil hunt" <a@abc.com> wrote:

>In Jsctipt, I have
>
>re = new RegExp("one|two", "gi");
>
>"one three".search(re);  return an integer >-1, meaning it found a match
>
>My question is how do I set up the RegExp to match "one" AND "two". I though 
>an & would do it, but no.

     If you mean that the string contains both "one" and "two", the
regex would be
          one.*two|two.*one
Warning: "." does not match newline.  It does match any other
character.

     This approach is not workable if you have many terms as the
complexity of the expression is O(n!).  For three terms, there would
be six alternatives.  For four, 24.

Sincerely,

Gene Wirchenko

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

Thread

reg expression "phil hunt" <a@abc.com> - 2012-06-27 17:48 -0400
  Re: reg expression Bjoern Hoehrmann <bjoern@hoehrmann.de> - 2012-06-27 23:55 +0200
    Re: reg expression Dr J R Stockton <reply1226@merlyn.demon.co.uk.not.invalid> - 2012-06-28 19:08 +0100
      Re: reg expression Spamless <Spamless@Nil.nil> - 2012-06-29 08:22 -0500
        Re: reg expression "Phil Hunt" <aaa@aaa.com> - 2012-06-29 10:19 -0400
          Re: reg expression Spamless <Spamless@Nil.nil> - 2012-06-29 11:36 -0500
          Re: reg expression Gene Wirchenko <genew@ocis.net> - 2012-06-29 10:05 -0700
  Re: reg expression Gene Wirchenko <genew@ocis.net> - 2012-06-27 19:38 -0700
    Re: reg expression Gene Wirchenko <genew@ocis.net> - 2012-06-27 21:18 -0700
    Re: reg expression "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-06-28 06:24 +0000
      Re: reg expression Spamless <Spamless@Nil.nil> - 2012-06-28 05:36 -0500
        Re: reg expression "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-06-28 15:15 +0000
          Re: reg expression "Phil Hunt" <aaa@aaa.com> - 2012-06-28 12:08 -0400

csiph-web