NAME

       I18N::LangTags::Detect - detect the user's language preferences

SYNOPSIS

         use I18N::LangTags::Detect;
         my @user_wants = I18N::LangTags::Detect::detect();

DESCRIPTION

       It is a common problem to want to detect what language(s) the user would prefer output in.

FUNCTIONS

       This module defines one public function, "I18N::LangTags::Detect::detect()".  This
       function is not exported (nor is even exportable), and it takes no parameters.

       In scalar context, the function returns the most preferred language tag (or undef if no
       preference was seen).

       In list context (which is usually what you want), the function returns a (possibly empty)
       list of language tags representing (best first) what languages the user apparently would
       accept output in.  You will probably want to pass the output of this through
       "I18N::LangTags::implicate_supers_tightly(...)"  or
       "I18N::LangTags::implicate_supers(...)", like so:

         my @languages =
           I18N::LangTags::implicate_supers_tightly(
             I18N::LangTags::Detect::detect()
           );

ENVIRONMENT

       This module looks for several environment variables, including REQUEST_METHOD,
       HTTP_ACCEPT_LANGUAGE, LANGUAGE, LC_ALL, LC_MESSAGES, and LANG.

       It will also use the Win32::Locale module, if it's installed.

SEE ALSO

       I18N::LangTags, Win32::Locale, Locale::Maketext.

       (This module's core code started out as a routine in Locale::Maketext; but I moved it here
       once I realized it was more generally useful.)

COPYRIGHT

       Copyright (c) 1998-2004 Sean M. Burke. All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

       The programs and documentation in this dist are distributed in the hope that they will be
       useful, but without any warranty; without even the implied warranty of merchantability or
       fitness for a particular purpose.

AUTHOR

       Sean M. Burke "sburke@cpan.org"