1HTTP::Headers::ActionPaUcske:r:CCoonnttHerTniTtbPNu:et:geHodetaiPdaeetrrilso:nD:(oA3cc)utmieonntPaatciko:n:ContentNegotiation(3)
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NAME

6       HTTP::Headers::ActionPack::ContentNegotiation - A class to handle
7       content negotiation
8

VERSION

10       version 0.09
11

SYNOPSIS

13         use HTTP::Headers::ActionPack;
14
15         my $n = HTTP::Headers::ActionPack->new->get_content_negotiator;
16
17         # matches text/html; charset="iso8859-1"
18         $n->choose_media_type(
19             ["text/html", "text/html;charset=iso8859-1" ],
20             "text/html;charset=iso8859-1, application/xml"
21         );
22
23         # matches en-US
24         $n->choose_language(
25             ['en-US', 'es'],
26             "da, en-gb;q=0.8, en;q=0.7"
27         );
28
29         # matches US-ASCII
30         $n->choose_charset(
31             [ "UTF-8", "US-ASCII" ],
32             "US-ASCII, UTF-8"
33         );
34
35         # matches gzip
36         $n->choose_encoding(
37             [ "gzip", "identity" },
38             "gzip, identity;q=0.7"
39         );
40

DESCRIPTION

42       This class provides a set of methods used for content negotiation. It
43       makes full use of all the header objects, such as
44       HTTP::Headers::ActionPack::MediaType,
45       HTTP::Headers::ActionPack::MediaTypeList and
46       HTTP::Headers::ActionPack::PriorityList.
47
48       Content negotiation is a tricky business, it needs to account for such
49       things as the quality rating, order of elements (both in the header and
50       in the list of provided items) and in the case of media types it gets
51       even messier. This module does it's best to figure things out and do
52       what is expected on it. We have included a number of examples from the
53       RFC documents in our test suite as well.
54

METHODS

56       "choose_media_type ( $provided, $header )"
57           Given an ARRAY ref of media type strings and an HTTP header, this
58           will return the appropriately matching
59           HTTP::Headers::ActionPack::MediaType instance.
60
61       "choose_language ( $provided, $header )"
62           Given a list of language codes and an HTTP header value, this will
63           attempt to negotiate the best language match. It will return the
64           language string that best matched.
65
66       "choose_charset ( $provided, $header )"
67           Given a list of charset names and an HTTP header value, this will
68           attempt to negotiate the best charset match. It will return the
69           name of the charset that best matched.
70
71       "choose_encoding ( $provided, $header )"
72           Given a list of encoding names and an HTTP header value, this will
73           attempt to negotiate the best encoding match. It will return the
74           name of the encoding which best matched.
75

SEE ALSO

77       HTTP::Negotiate
78
79       There is nothing wrong with this module, however it attempts to answer
80       all the negotiation questions at once, whereas this module allows you
81       to do it one thing at a time.
82

AUTHOR

84       Stevan Little <stevan.little@iinteractive.com>
85

CONTRIBUTORS

87       •   Andrew Nelson <anelson@cpan.org>
88
89       •   Dave Rolsky <autarch@urth.org>
90
91       •   Florian Ragwitz <rafl@debian.org>
92
93       •   Jesse Luehrs <doy@tozt.net>
94
95       •   Karen Etheridge <ether@cpan.org>
96

98       This software is copyright (c) 2012 by Infinity Interactive, Inc..
99
100       This is free software; you can redistribute it and/or modify it under
101       the same terms as the Perl 5 programming language system itself.
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105perl v5.36.0                  HTTP2:0:2H2e-a0d7e-r2s2::ActionPack::ContentNegotiation(3)
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