NAME
    HTTP::AcceptLanguage - Accept-Language header parser and find available
    language

HOW DO I USE THIS MODULE WITH
  WITH CGI.pm
      use HTTP::AcceptLanguage;
      my $lang = HTTP::AcceptLanguage->new($ENV{HTTP_ACCEPT_LANGUAGE})->match(qw/ en fr es ja zh-tw /);

  WITH raw PSGI
      use HTTP::AcceptLanguage;
      my $lang = HTTP::AcceptLanguage->new($env->{HTTP_ACCEPT_LANGUAGE})->match(qw/ en fr es ja zh-tw /);

  WITH Plack::Request
      use HTTP::AcceptLanguage;
      my $lang = HTTP::AcceptLanguage->new($req->header('Accept-Language'))->match(qw/ en fr es ja zh-tw /);

SYNOPSIS
    Good example of the input and output.

      # If language quality is the same then order by match method's input list
      my $accept_language = HTTP::AcceptLanguage->new('en;q=0.5, ja;q=0.1');
      $accept_language->match(qw/ th da ja /); # -> ja
      $accept_language->match(qw/ en ja /);    # -> en

      my $accept_language = HTTP::AcceptLanguage->new('en, da');
      $accept_language->match(qw/ da en /); # -> da
      $accept_language->match(qw/ en da /); # -> en

    You can obtain the order of preference of the available languages
    ââlist of client

      my $accept_language = HTTP::AcceptLanguage->new('en, ja;q=0.3, da;q=1, *;q=0.29, ch-tw');
      $accept_language->languages; # -> en, da, ch-tw, ja, *

DESCRIPTION
    HTTP::AcceptLanguage is HTTP Accept-Language header parser And you can
    find available language by Accept-Language header.

METHODS
  new($ENV{HTTP_ACCEPT_LANGUAGE})
    It to specify a string of Accept-Language header.

  match(@available_language)
    By your available language list, returns the most optimal language.

    If language quality is the same, the order of the input list takes
    precedence.

  languages
    Returns are arranged in order of quality language list parsed.

AUTHOR
    Kazuhiro Osawa <yappo {at} shibuya {dot} pl>

COPYRIGHT
    Copyright 2013- Kazuhiro Osawa

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

SEE ALSO
    RFC2616, I18N::AcceptLanguage

