Package: grep
Version: 2.6.3-3
Severity: normal
With LC_ALL undefined, this uppercase pattern doesn't work properly, e.g.:
$ echo 'Aa' | grep '[A-Z][A-Z]*$'
$ echo 'Ab' | grep '[A-Z][A-Z]*$'
.Ab
The second entry should not match. If I define LC_ALL=C, it works properly.
This was confirmed by users on the IRC debian channel, and they say it is fixed
in 'sid'. I tried [:upper:] and it does work:
$ echo '\.Ab' | grep '\.[[:upper:]][[:upper:]]*$'
$
This looks like a serious issue. IRC folks report it was broken when perl
compatibility was added, though I am not using perl
compability. They say it works in perl mode, but not in Posix or ERE.
This bug report looks similar:
http://savannah.gnu.org/bugs/index.php?31389
-- System Information:
Debian Release: 6.0.3
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/16 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages grep depends on:
ii dpkg 1.15.8.11 Debian package management system
ii install-info 4.13a.dfsg.1-6 Manage installed documentation in
ii libc6 2.11.2-10 Embedded GNU C Library: Shared lib
grep recommends no packages.
Versions of packages grep suggests:
ii libpcre3 8.02-1.1 Perl 5 Compatible Regular Expressi
-- no debconf information
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