GNU bug report logs - #36372
27.0.50; replace-regexp-in-string skips START first chars in return value

Previous Next

Full log

Message #8 received at 36372 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Mattias Engdegård <mattiase <at> acm.org>
Cc: 36372 <at> debbugs.gnu.org
Subject: Re: bug#36372: 27.0.50;
 replace-regexp-in-string skips START first chars in return value
Date: Tue, 25 Jun 2019 18:26:22 +0300

> From: Mattias Engdegård <mattiase <at> acm.org>
> Date: Tue, 25 Jun 2019 14:01:49 +0200
> 
>  (replace-regexp-in-string "a" "X" "abcab" t t nil 2)
> 
> would be expected to return
> 
>  "abcXb"
> 
> but the actual return value is
> 
>  "cXb"
> 
> This was probably not intended. The manual text is
> 
>  This function copies STRING and searches it for matches for REGEXP,
>  and replaces them with REP.  It returns the modified copy.  If
>  START is non-‘nil’, the search for matches starts at that index in
>  STRING, so matches starting before that index are not changed.
> 
> The question is whether it is too late to fix the bug, or if it needs to be documented.

Both, I think ;-)

Thanks.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.