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Re: regex subexpressions broken
From: |
Chet Ramey |
Subject: |
Re: regex subexpressions broken |
Date: |
Sat, 12 May 2007 21:20:51 -0400 |
User-agent: |
Thunderbird 2.0.0.0 (Macintosh/20070326) |
odi@odi.ch wrote:
> Configuration Information [Automatically generated, do not change]:
> Machine: i686
> OS: linux-gnu
> Compiler: i686-pc-linux-gnu-gcc
> Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686'
> -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu'
> -DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL
> -DHAVE_CONFIG_H -I. -I. -I./include -I./lib -march=athlon-tbird -O3
> -fomit-frame-pointer -pipe
> uname output: Linux gollum 2.6.18-gentoo-r4 #1 PREEMPT Sat Dec 9 14:19:35 CET
> 2006 i686 AMD Athlon(tm) processor AuthenticAMD GNU/Linux
> Machine Type: i686-pc-linux-gnu
>
> Bash Version: 3.2
> Patch Level: 15
> Release Status: release
>
> Description:
> [[ "a b c" =~ "a (.) c" ]]
> echo ${BASH_REMATCH[1]}
>
> Does not return a result any more. It used to work.
Beginning with bash-3.2, quoting the rhs of the =~ operator causes the
quoted portions to be matched as strings, as the == operator works.
This is in the latest version of the Bash FAQ, which, for some reason,
I have been blocked from posting to bug-bash. I will try again.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
Live Strong. No day but today.
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/