From:	"Tim 'Zastai' Van Holder" <zastai AT hotmail DOT com>
Newsgroups:	comp.os.msdos.djgpp
References:	<D1D61633AF7 AT HRZ1 DOT hrz DOT tu-darmstadt DOT de>
Subject:	Re: bash regexp question
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Date:	Thu, 24 Aug 2000 19:09:20 GMT
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"Juan Manuel Guerrero" <ST001906 AT HRZ1 DOT HRZ DOT TU-Darmstadt DOT De> wrote in message
news:D1D61633AF7 AT HRZ1 DOT hrz DOT tu-darmstadt DOT de...
> Please look at the following code:
> case ${PWD-`pwd`} in
> /*)
> echo POSIX;;
> ?:[/\\]*)
> echo MS-DOS;;
> esac
>
> I would expect that the code prints: MS-DOS.
> The fact is that it does nothing.
> If I replace the regular expresion: [/\\] by [\\/]
> the code works.
> Is this a bash bug or some Posix feature completely
> unknow to me. I am using stock bash203.
>
> I have found *similar* code in conf.sh. This file is part
> of rcs5713s.zip and of course I can not configure the
> package due to this "misfeature" or bug in bash.
>
I also noticed this when patching autoconf 2.14a(1) and was equally
surprised; but I just accpeted it and moved on. I haven't tested if
bash does the same on a *nix system, though; nor have I checked to
see whether bash 1.14.7 handles it the same way.
In any case, if my patched autoconf ever gets released, it will use
the working version :-)
Oh, and it's a shell wildcard, not a regexp (hence '/*' and not '/.*').

Tim Van Holder

(1): Now defunct; autoconf 2.49a has appeared on alpha.gnu.org, so I'll
      be patching that shortly. Hopefully, I may get at least some of the
      patches submitted before release.
--
Hi, I'm a signature virus. plz set me as your signature and help me spread
:)

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