GNU bug report logs - #19738
How did [a-z] match é?

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 19738 in the body.
You can then email your comments to 19738 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: James Calfee <james <at> jcalfee.info>
To: bug-grep <at> gnu.org
Subject: How did [a-z] match é?
Date: Fri, 30 Jan 2015 20:44:13 -0500

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

http://stackoverflow.com/questions/28247204/how-did-a-z-match-%C3%A9

[Message part 2 (text/html, inline)]

Message #12 received at 19738-done <at> debbugs.gnu.org (full text, mbox):

From: Eric Blake <eblake <at> redhat.com>
To: James Calfee <james <at> jcalfee.info>, 19738-done <at> debbugs.gnu.org
Subject: Re: bug#19738: How did [a-z] match é?
Date: Sat, 31 Jan 2015 15:25:29 -0700

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

tag 19738 notabug
thanks

On 01/30/2015 06:44 PM, James Calfee wrote:
> http://stackoverflow.com/questions/28247204/how-did-a-z-match-%C3%A9

Rather than making us chase a link, how about pasting the content of
your question directly in your mail.

At any rate, the answer to the question in your subject line is that
your current locale is set up to include letters outside of the 26 ascii
bytes.  Run with LC_ALL=C in the environment to get the well-defined
behavior you seem to want, and note that POSIX states that range
expressions in regular expressions are undefined in non-C locales,
precisely because some tools use all collation elements that 'sort'
would place in the range, while other tools use 'rational range
expression' and treat the range as if it were ASCII instead of the
current locale.

This is not a bug in coreutils, so I'm closing the tracker bug, but do
feel free to make further comments or questions.


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

[signature.asc (application/pgp-signature, attachment)]

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.