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From: Tim Johnson <tim@johnsons-web.com>
Subject: Re: re-search beginning of line or whitespace
Date: Wed, 2 Nov 2005 08:19:14 -0900	[thread overview]
Message-ID: <20051102171914.GC1791@johnsons-web.com> (raw)
In-Reply-To: <20051102032355.GA10016@SDF.LONESTAR.ORG>

* Neon Absentius <absent@sdf.lonestar.org> [051101 18:30]:
> On Tue, Nov 01, 2005 at 05:39:46PM -0900, thus spake Tim Johnson:
> > (re-search-backward "^\|[\t ]") ;; gives me an error
> > 
> > What am I leaving out.
> 
> A slash ;)
 
  Thanks Neon:

> The correct syntax is (re-search-backward "^\\|[\t ]") with your
> syntax you are searcing for a line starting with a pipe ("|") and
> continuing with white space.  Appanently your buffer doesn't contain
> such a line.
  
  Let me see if I understand the logic of this strange creature called
  "regular expressions":

   "^"      ;; match beginning of line
   "\\|"    ;; seperator for alternatives
   "[\t ]"  ;; match any of: TAB, SPACE

   Am I correct? 
   I get confused by the way that emacs "escapes" metacharacters.

   Thanks again
   tim

-- 
Tim Johnson <tim@johnsons-web.com>
      http://www.alaska-internet-solutions.com

  reply	other threads:[~2005-11-02 17:19 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-01 15:23 ^[$B:G?78D<<3+J|^[(B info
2005-11-02  2:39 ` re-search beginning of line or whitespace Tim Johnson
2005-11-02  3:23   ` Neon Absentius
2005-11-02 17:19     ` Tim Johnson [this message]
2005-11-03 20:33       ` Neon Absentius
2005-11-04 16:38         ` Info [was Re: re-search beginning of line or whitespace] Tim Johnson
     [not found]       ` <mailman.13851.1131050044.20277.help-gnu-emacs@gnu.org>
2005-11-04  1:05         ` re-search beginning of line or whitespace Johan Bockgård
2005-11-04  1:47           ` Neon Absentius

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