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Re: range expressions in regexps in non-C locale
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From: |
Pádraig Brady |
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Subject: |
Re: range expressions in regexps in non-C locale |
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Date: |
Sun, 19 Feb 2012 17:36:44 +0000 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:6.0) Gecko/20110816 Thunderbird/6.0 |
On 02/19/2012 02:08 PM, Bruno Haible wrote:
> Hi,
>
> In basic regular expressions, range expressions are not safe to use outside
> the C locale; the results vary between implementations and locales.
>
> - For 'grep' this was explained in
> https://lists.gnu.org/archive/html/bug-grep/2011-06/msg00031.html
> https://lists.gnu.org/archive/html/bug-grep/2012-01/msg00088.html
> http://savannah.gnu.org/bugs/?32337
>
> - For 'tr' I'm seeing this on Solaris 11 2011-11 in de_DE.UTF-8 locale:
> $ echo abcdefghijklmnopqrstuvwxyz | /usr/bin/tr 'a-z' 'A-Z'
> AbcdefghijklmnopqrstuvwxyZ
> $ echo abcdefghijklmnopqrstuvwxyz | /usr/bin/tr '[a-z]' '[A-Z]'
> ABCDEFGHIJKLMNOPQRSTUVWXYZ
That was documented in autoconf recently:
http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commit;h=efa12744
> $ echo abcdefghijklmnopqrstuvwxyz | /usr/xpg4/bin/tr 'a-z' 'A-Z'
> AＢⓒ𝚍ⓔＦGH𝙞JK𝚕ⓜNOＰＱⓡSTUⓥＷⓧＹZ
> $ echo abcdefghijklmnopqrstuvwxyz | /usr/xpg4/bin/tr '[a-z]' '[A-Z]'
> AＢⓒ𝚍ⓔＦGH𝙞JK𝚕ⓜNOＰＱⓡSTUⓥＷⓧＹZ
> $ echo abcdefghijklmnopqrstuvwxyz | /usr/xpg6/bin/tr 'a-z' 'A-Z'
> AＢⓒ𝚍ⓔＦGH𝙞JK𝚕ⓜNOＰＱⓡSTUⓥＷⓧＹZ
> $ echo abcdefghijklmnopqrstuvwxyz | /usr/xpg6/bin/tr '[a-z]' '[A-Z]'
> AＢⓒ𝚍ⓔＦGH𝙞JK𝚕ⓜNOＰＱⓡSTUⓥＷⓧＹZ
LOL
patch looks good BTW
cheers,
Pádraig.