Public bug reported:
Binary package hint: grep
grep is badly broken with UTF8 in intrepid.
Intrepid:
$ echo FOOBAR | grep FOO
FOOBAR
$ echo FOOBAR | grep -i FOO
$ echo FOOBAR | grep -i foo
$
the expected behavior is like on Hardy:
$ echo FOOBAR | grep FOO
FOOBAR
$ echo FOOBAR | grep -i FOO
FOOBAR
$ echo FOOBAR | grep -i foo
FOOBAR
$
In both cases, my locale is set to en_US.UTF-8.
Looking at the package, there's debian/patches/66-match_icase.patch
showing this:
>>>
This fixes
echo Y | LC_ALL=en_US.UTF-8 grep -i '[y]'
The expected output is:
Y
Without this patch, it works on non UTF-8 environment, but fails on UTF-8
environment.
The definition of RE_ICASE comes from the glibc (/usr/include/regex.h)
Maybe lib/posix/regex.h should be removed to enforce the usage of the
glibc's regex.h
<<<
$ echo Y | LC_ALL=en_US.UTF-8 grep -i '[y]'
$ echo Y | LC_ALL=C grep -i '[y]'
Y
So it seems it's indeed an UTF8 issue and that the patch is no longer
sufficient.
** Affects: grep (Ubuntu)
Importance: Undecided
Status: New
--
case sensitive grep broken with UTF8 in intrepid, breaking scripts
https://bugs.launchpad.net/bugs/243717
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