Re: [groff] pdfmom: needs C locale?

[Deri James]

On Sat 10 Mar 2018 12:29:54 Ralph Corderoy wrote:
> I don't know how all those other commands did.  :-)
> What's the output of
> 
>     dpkg-query -W grep
>     grep --version
>     od -tx1z <<<$'x\xa0\xa0y'
>     LC_ALL=en_GB.utf8 grep z <<<$'x\xa0\xa0y'
>     LC_ALL=en_GB.utf8 grep z <<<$'x\xa0\xa0y\nz'
>     LC_ALL=en_GB.utf8 grep y <<<$'x\xa0\xa0y'
>     LC_ALL=en_GB.iso88591 grep y <<<$'x\xa0\xa0y'
>     LC_ALL=C grep y <<<$'x\xa0\xa0y'

All the others are the same as yours. Here it is:-

=============================================================================
address@hidden ~]$     grep --version
grep (GNU grep) 2.20
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Mike Haertel and others, see 
<http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.
address@hidden ~]$     od -tx1z <<<$'x\xa0\xa0y'
0000000 78 a0 a0 79 0a                                   >x..y.<
0000005
address@hidden ~]$     LC_ALL=en_GB.utf8 grep z <<<$'x\xa0\xa0y'
address@hidden ~]$     LC_ALL=en_GB.utf8 grep z <<<$'x\xa0\xa0y\nz'
z
address@hidden ~]$     LC_ALL=en_GB.utf8 grep y <<<$'x\xa0\xa0y'
x��y
address@hidden ~]$     LC_ALL=en_GB.iso88591 grep y <<<$'x\xa0\xa0y'
x��y
address@hidden ~]$     LC_ALL=C grep y <<<$'x\xa0\xa0y'
x��y
address@hidden ~]$ urpmq -i grep
    $MIRRORLIST: media/core/updates/media_info/20180228-135247-info.xml.lzma
Name        : grep
Version     : 2.20
Release     : 4.1.mga5
Group       : Text tools
Size        : 706453                       Architecture: x86_64
Source RPM  : grep-2.20-4.1.mga5.src.rpm
URL         : http://www.gnu.org/software/grep/grep.html
Summary     : The GNU versions of grep pattern matching utilities
Description :
The GNU versions of commonly used grep utilities.  Grep searches one or
more input files for lines which contain a match to a specified pattern
and then prints the matching lines.  GNU's grep utilities include grep,
egrep and fgrep.

You should install grep on your system, because it is a very useful utility
for searching through text files, for system administration tasks, etc.
===========================================================================

I have now run the same commands in VirtualBox on a more recent version of 
Mageia:-

===========================================================================
address@hidden ~]$     grep --version
grep (GNU grep) 3.0
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Mike Haertel and others, see 
<http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.
address@hidden ~]$     od -tx1z <<<$'x\xa0\xa0y'
0000000 78 a0 a0 79 0a                                   >x..y.<
0000005
address@hidden ~]$     LC_ALL=en_GB.utf8 grep z <<<$'x\xa0\xa0y'
address@hidden ~]$     LC_ALL=en_GB.utf8 grep z <<<$'x\xa0\xa0y\nz'
z
address@hidden ~]$     LC_ALL=en_GB.utf8 grep y <<<$'x\xa0\xa0y'
Binary file (standard input) matches
address@hidden ~]$     LC_ALL=en_GB.iso88591 grep y <<<$'x\xa0\xa0y'
x��y
address@hidden ~]$     LC_ALL=C grep y <<<$'x\xa0\xa0y'
x��y
address@hidden ~]$ 
address@hidden ~]$ urpmq -i grep
Name        : grep
Version     : 3.0
Release     : 1.mga6
Group       : Text tools
Size        : 790453                       Architecture: x86_64
Source RPM  : grep-3.0-1.mga6.src.rpm
URL         : http://www.gnu.org/software/grep/grep.html
Summary     : The GNU versions of the grep pattern matching utilities
Description :
The GNU versions of the commonly used grep utilities.  Grep searches one or
more input files for lines which contain a match to a specified pattern
and then prints the matching lines.  GNU's grep utilities include grep,
egrep and fgrep.

You should install grep on your system, because it is a very useful utility
for searching through text files, for system administration tasks, etc.
===========================================================================

Now I can see the binary file message, so between versions 2.20 and 3.0 it 
appears the behaviour changed, or a difference in the environment of my user 
under VirtualBox. Peter has committed the LC_ALL=C changes so there should not 
be a problem with either version.

Thanks for your help.

Cheers 

Deri