From thomas@biostat.washington.edu  Fri May 23 20:17:28 1997
From: thomas@biostat.washington.edu (Thomas Lumley)
Date: Fri, 23 May 1997 12:17:28 -0700 (PDT)
Subject: R-alpha: R-beta: regex
In-Reply-To: <x2k9krh1hb.fsf@bush.kubism.ku.dk>
Message-ID: <Pine.SUN.3.95.970523121557.25867B-100000@data>

On 22 May 1997, Peter Dalgaard BSA wrote:

> > > grep("([A-Za-z][^:]*):\\1","Ac:Ac",value=T)
> > character(0)

> I strongly suspect that no number of \s will make it work as long as
> do_grep() in main/character.c contains this line:
> 
>         eflags = REG_NOSUB; 

Is this a feature? If so, can it at least be made optional?


Thomas Lumley
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R-alpha: R-beta: regex
Thomas Lumley