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Date: Wed, 2 Dec 2009 22:10:23 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Base-Files (was Re: Unset TMP/TEMP in profile?)
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On Dec  2 13:36, Christopher Faylor wrote:
> On Wed, Dec 02, 2009 at 07:21:40PM +0100, Corinna Vinschen wrote:
> >On Dec  2 18:21, Thomas Wolff wrote:
> >> Corinna Vinschen wrote in another thread about setting LANG:
> >> >>... Andy and Thomas, please work
> >> >>out the best solution together.  It should work in sh and csh.  Then
> >> >>post it as reply to http://cygwin.com/ml/cygwin/2009-12/msg00090.html so
> >> >>John can put it into the base-files package.
> >> Our worked-out proposal is as follows:
> >> 
> >> 
> >> /etc/profile.d/lang.sh:
> >> 
> >> # if no locale variable is set, indicate terminal charset via LANG
> >> test -z "${LC_ALL:-${LC_CTYPE:-$LANG}}" && export LANG=C.UTF-8
> >> 
> >> /etc/profile.d/lang.csh:
> >> 
> >> # if no locale variable is set, indicate terminal charset via LANG
> >> ( test $?LC_ALL = 0 || test -z "$LC_ALL" ) && ( test $?LC_CTYPE = 0 || test -z "$LC_CTYPE" ) && ( test $?LANG = 0 || test -z "$LANG" ) && setenv LANG C.UTF-8
> >
> >Thanks to both of you.
> 
> I wasn't paying attention before, so I apologize for not commenting
> sooner but couldn't all of the above be one test statement or at least
> handled inside '{}' rather than '()'.  Maybe bash optimizes that away
> but, if it doesn't, then forking subshells will be rather expensive on
> Cygwin.

The statement you're referring to only affects tcsh, not bash.  But
you're right, nevertheless.  I would simplify this to

  /etc/profile.d/lang.csh:

  if ( $?LC_ALL == 0 && $?LC_CTYPE == 0 && $?LANG == 0 ) setenv LANG C.UTF-8

This works without forking any child process.  And the user might
actually want to set one of these variables to an empty string.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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