NAME

       Parse::MIME - Parse mime-types, match against media ranges

SYNOPSIS

        use Parse::MIME qw( best_match );
        print best_match( [ qw( application/xbel+xml text/xml ) ], 'text/*;q=0.5,*/*; q=0.1' );
        # text/xml

DESCRIPTION

       This module provides basic functions for handling mime-types. It can handle matching mime-
       types against a list of media-ranges. See section 14.1 of the HTTP specification [RFC
       2616] for a complete explanation:
       <http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1>

INTERFACE

       None of the following functions are exported by default. You can use the ":all" tag to
       import all of them into your package:

        use Parse::MIME ':all';

   parse_mime_type
       Parses a mime-type into its component parts and returns type, subtype and params, where
       params is a reference to a hash of all the parameters for the media range:

        parse_mime_type 'application/xhtml;q=0.5'
        # ( 'application', 'xhtml', { q => 0.5 } )

   parse_media_range
       Media-ranges are mime-types with wild-cards and a "q" quality parameter. This function
       works just like "parse_mime_type", but also guarantees that there is a value for "q" in
       the params hash, supplying the default value if necessary.

        parse_media_range 'application/xhtml'
        # ( 'application', 'xhtml', { q => 1 } )

   parse_media_range_list
       Media-range lists are comma-separated lists of media ranges. This function works just like
       "parse_media_range", but accepts a list of media ranges and returns for all of media-
       ranges.

        my @l = parse_media_range_list 'application/xhtml, text/html;q=0.7'
        # ( 'application', 'xhtml', { q => 1 }, 'text', 'html', { q => 0.7 } )

   fitness_and_quality_parsed
       Find the best match for a given mime-type (passed as the first parameter) against a list
       of media ranges that have already been parsed by "parse_media_range" (passed as a flat
       list). Returns the fitness value and the value of the "q" quality parameter of the best
       match, or "( -1, 0 )" if no match was found.

        # for @l see above
        fitness_and_quality_parsed( 'text/html', @l )
        # ( 110, 0.7 )

   quality
       Determines the quality ("q") of a mime-type (passed as the first parameter) when compared
       against a media-range list string. F.ex.:

        quality( 'text/html', 'text/*;q=0.3, text/html;q=0.7, text/html;level=1, text/html;level=2;q=0.4, */*;q=0.5' )
        # 0.7

   quality_parsed
       Just like "quality", except the second parameter must be pre-parsed by
       "parse_media_range_list".

   best_match
       Choose the mime-type with the highest quality ("q") from a list of candidates.  Takes an
       array of supported mime-types as the first parameter and finds the best match for all the
       media-ranges listed in header, which is passed as the second parameter. The value of
       header must be a string that conforms to the format of the HTTP "Accept" header. F.ex.:

        best_match( [ qw( application/xbel+xml text/xml ) ], 'text/*;q=0.5,*/*; q=0.1' )
        # 'text/xml'

AUTHOR

       Aristotle Pagaltzis <pagaltzis@gmx.de>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2018 by Aristotle Pagaltzis.

       This is free software; you can redistribute it and/or modify it under the same terms as
       the Perl 5 programming language system itself.