GNU bug report logs - #20006
Get rid of excessive sed forks

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Message #22 received at 20006 <at> debbugs.gnu.org (full text, mbox):

From: Eric Blake <eblake <at> redhat.com>
To: Pavel Raiskup <praiskup <at> redhat.com>, libtool <at> gnu.org
Cc: 20006 <at> debbugs.gnu.org, Richard Purdie <richard.purdie <at> linuxfoundation.org>,
 Mike Frysinger <vapier <at> gentoo.org>
Subject: Re: Bash-specific performance by avoiding sed
Date: Mon, 5 Oct 2015 09:16:30 -0600

[Message part 1 (text/plain, inline)]

On 10/05/2015 01:47 AM, Pavel Raiskup wrote:

> 
> Hmm, one might-be-a-problem with this (catched by testsuite), when you

s/catched/caught/


> We would like to have an output \"*\".  I'm not aware of portable way
> how to disable wildcard expansion in shell, and autoconf 'Shellology'
> section haven't helped me.  In particular, the problem is here:

It is portable to use 'set +f' to disable wildcard globbing, then 'set
-f' to turn them back on.  (POSIX requires it).

> 
>   x='a"[a-z]*"c'
>   IFS='"'
>   for i in $x; do # Here we wan't to disable wildcard expansion

s/wan't/want/

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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