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Re: Bug in extended pattern matching *!()
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From: |
Chet Ramey |
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Subject: |
Re: Bug in extended pattern matching *!() |
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Date: |
Thu, 27 Sep 2012 20:58:37 -0400 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:14.0) Gecko/20120713 Thunderbird/14.0 |
On 9/26/12 10:07 PM, hans1worst@gmail.com wrote:
> See also this thread: http://stackoverflow.com/questions/12596468/
>
> It looks like there is some bug in the pattern matcher
>
> $ shopt -s extglob
> $ touch a ab ba
> $ echo a*!(x)
>
> Expected result:
> a ab
> Experienced result:
> ab
The question is whether or not !(x) should match the empty string. The
bash matcher treats it similarly to [!x], which does not.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/