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Re: Regexp issue


From: Alan Mackenzie
Subject: Re: Regexp issue
Date: Sat, 20 Jun 2009 10:17:38 +0000 (UTC)
User-agent: tin/1.6.2-20030910 ("Pabbay") (UNIX) (FreeBSD/4.11-RELEASE (i386))

Peter Dyballa <Peter_Dyballa@web.de> wrote:

> Am 20.06.2009 um 10:39 schrieb Paulo J. Matos:

>> How can I match the string => but not part of <=>?

>        [^<]=>

> [everything but "<"]<followed by exactly "=>">

Or, more precisely,

        \(^\|[^<]\)=>

, i.e. [nothing at all] or [something which isn't "<"] following by =>.
If you're using this in a string in a lisp program, you'll have to double
up the backquotes, something like

       (search-forward-regexp "\\(^\\|[^<]\\)=>")

> --
> Greetings

>   Pete

-- 
Alan Mackenzie (Nuernberg).



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