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Groups > comp.lang.java.programmer > #22196

Re: regex reserved chars

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On Thursday, February 7, 2013 8:31:47 AM UTC+1, Roedy Green wrote:
> On Wed, 06 Feb 2013 16:28:29 -0800, Roedy Green
> 
> <see_website@mindprod.com.invalid> wrote, quoted or indirectly quoted
> someone who said :
> 
> >ve always treated $ ( ) * + -. ? [ \ ] ^ { | }
> >as reserved regex chars.
> >I can't find any docs that say the list is different inside[  ].
> 
> I have not found an official source however it is claimed only [ - ^]
> are reserved in character classes i.e inside [...]

Is http://docs.oracle.com/javase/6/docs/api/java/util/regex/Pattern.html not official enough?  Or are you missing an more explicit explanation on that page?

> I don't think that can be right.

Roedy, why???

>  Surely $ is reserved too, and of course \.

Dot has no special meaning and neither does $.  Btw. you can easily test that.  Apart from that dot with special meaning does not make sense in a character class if you think about it for a moment.

Cheers

robert

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regex reserved chars Roedy Green <see_website@mindprod.com.invalid> - 2013-02-06 16:28 -0800
  Re: regex reserved chars markspace <markspace@nospam.nospam> - 2013-02-06 16:54 -0800
    Re: regex reserved chars Lew <lewbloch@gmail.com> - 2013-02-06 18:03 -0800
      Re: regex reserved chars markspace <markspace@nospam.nospam> - 2013-02-06 18:10 -0800
        Re: regex reserved chars Roedy Green <see_website@mindprod.com.invalid> - 2013-02-06 22:50 -0800
          Re: regex reserved chars markspace <markspace@nospam.nospam> - 2013-02-07 09:32 -0800
            Re: regex reserved chars Gene Wirchenko <genew@telus.net> - 2013-02-07 10:51 -0800
              Re: regex reserved chars markspace <markspace@nospam.nospam> - 2013-02-07 11:53 -0800
              Re: regex reserved chars Arne Vajhøj <arne@vajhoej.dk> - 2013-02-08 20:25 -0500
              Re: regex reserved chars Arne Vajhøj <arne@vajhoej.dk> - 2013-02-08 20:32 -0500
          Re: regex reserved chars Arne Vajhøj <arne@vajhoej.dk> - 2013-02-08 20:17 -0500
      Re: regex reserved chars Roedy Green <see_website@mindprod.com.invalid> - 2013-02-06 23:06 -0800
        Re: regex reserved chars Arne Vajhøj <arne@vajhoej.dk> - 2013-02-08 20:15 -0500
          Re: regex reserved chars Lew <lewbloch@gmail.com> - 2013-02-09 10:43 -0800
  Re: regex reserved chars Arne Vajhøj <arne@vajhoej.dk> - 2013-02-06 20:18 -0500
    Re: regex reserved chars Martin Gregorie <martin@address-in-sig.invalid> - 2013-02-07 21:17 +0000
      Re: regex reserved chars Jim Janney <jjanney@shell.xmission.com> - 2013-02-07 20:47 -0700
        Re: regex reserved chars Martin Gregorie <martin@address-in-sig.invalid> - 2013-02-09 00:50 +0000
      Re: regex reserved chars Arne Vajhøj <arne@vajhoej.dk> - 2013-02-08 20:06 -0500
        Re: regex reserved chars markspace <markspace@nospam.nospam> - 2013-02-08 19:02 -0800
          Re: regex reserved chars Nigel Wade <nmw@ion.le.ac.uk> - 2013-02-11 09:25 +0000
            Re: regex reserved chars markspace <markspace@nospam.nospam> - 2013-02-11 07:16 -0800
              Re: regex reserved chars Nigel Wade <nmw@ion.le.ac.uk> - 2013-02-11 17:12 +0000
  Re: regex reserved chars Roedy Green <see_website@mindprod.com.invalid> - 2013-02-06 23:31 -0800
    Re: regex reserved chars Robert Klemme <shortcutter@googlemail.com> - 2013-02-07 04:38 -0800
    Re: regex reserved chars Arne Vajhøj <arne@vajhoej.dk> - 2013-02-08 20:02 -0500

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