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Re: Bug in extended pattern matching *!()


From: Chet Ramey
Subject: Re: Bug in extended pattern matching *!()
Date: Fri, 28 Sep 2012 09:11:35 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:15.0) Gecko/20120907 Thunderbird/15.0.1

On 9/28/12 12:52 AM, hans1worst@gmail.com wrote:
>> The question is whether or not !(x) should match the empty string. The
>> bash matcher treats it similarly to [!x], which does not.
> 
> It does however match the empty string at most times. So I guess that's the 
> real bug. Again, there is some inconsistency in

It's whether or not it matches the NUL at the end of the search string.  I
agree that it should, or at least that (x) should not match, so !(x)
should, and that will be fixed for the next version.

> [OT] Thanks for your work for the Bash project. I've just learned that you've 
> been the main maintainer for a long time, so keep it up! :) 

:-)

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/



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