NAME

       XML::Atom::Categories - Atom Category Document object

SYNOPSIS

         use XML::Atom::Service;

         my $category = XML::Atom::Category->new;
         $category->term('joke');
         $category->scheme('http://example.org/extra-cats/');

         my $categories = XML::Atom::Categories->new;
         $categories->add_category($category);

         my $xml = $categories->as_xml;

         # Get a list of the category elements.
         my @category = $categories->category;

DESCRIPTION

       Category Documents contain lists of categories described using the "atom:category" element
       from the Atom Syndication Format [RFC4287].

       The Category Document is defined in "The Atom Publishing Protocol," IETF Internet-Draft.

METHODS

   XML::Atom::Categories->new([ $stream ])
       Creates a new Category Document object, and if $stream is supplied, fills it with the data
       specified by $stream.

       Automatically handles autodiscovery if $stream is a URI (see below).

       Returns the new XML::Atom::Categories object. On failure, returns "undef".

       $stream can be any one of the following:

       •   Reference to a scalar

           This is treated as the XML body of the Category Document.

       •   Scalar

           This is treated as the name of a file containing the Category Document XML.

       •   Filehandle

           This is treated as an open filehandle from which the Category Document XML can be
           read.

       •   URI object

           This is treated as a URI, and the Category Document XML will be retrieved from the
           URI.

   $categories->categoryk([ $category ])
       If called in scalar context, returns an XML::Atom::Category object corresponding to the
       first "app:category" element found in the Category Document.

       If called in list context, returns a list of XML::Atom::Category objects corresponding to
       all of the "app:category" elements found in the Service Document.

   $service->add_category($category)
       Adds the category $category, which must be an XML::Atom::Category object, to the Service
       Document as a new "app:category" element. For example:

           my $category = XML::Atom::Category->new;
           $category->term('joke');
           $categories->add_category($category);

   $categories->fixed
   $categories->scheme
   $categories->href
   $categories->element_name
   $categories->element_ns

SEE ALSO

       XML::Atom XML::Atom::Service Atompub

AUTHOR

       Takeru INOUE, <takeru.inoue _ gmail.com>

LICENCE AND COPYRIGHT

       Copyright (c) 2007, Takeru INOUE "<takeru.inoue _ gmail.com>". All rights reserved.

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

DISCLAIMER OF WARRANTY

       BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE,
       TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF
       ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
       WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO
       THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE
       DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT
       HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY
       THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
       INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
       SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
       LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY
       OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
       SUCH DAMAGES.