I18N::LangTags::Detect(3pm)				 Perl Programmers Reference Guide			       I18N::LangTags::Detect(3pm)

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"

perl v5.12.1							    2010-04-26					       I18N::LangTags::Detect(3pm)