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XML-RSS-JavaScript-0.64
River stage zero No dependents
++
/ XML::RSS::JavaScript

NAME

XML::RSS::JavaScript - serialize your RSS as JavaScript

SYNOPSIS

    use XML::RSS::JavaScript;
    my $rss = XML::RSS::JavaScript->new();
    $rss->channel(
    title        => 'My Channel',
    link        => 'http://my.url.com',
    description => 'My RSS Feed.'
    );

    $rss->add_item(
    title        => 'My item #1',
    link        => 'http://my.item.com#1',
    description => 'My first news item.'
    );

    $rss->add_item( 
    title        => 'My item #2',
    link        => 'http://my.item.com#2',
    description => 'My second news item.'
    );

    # save rss 
    $rss->save( '/usr/local/apache/htdocs/myfeed.xml' );

    # save identical content as javascript
    $rss->save_javascript( '/usr/local/apache/htdocs/myfeed.js');

DESCRIPTION

Perhaps you use XML::RSS to generate RSS for consumption by RSS parsers. Perhaps you also get requests for how to use the RSS feed by people who have no idea how to parse XML, or write Perl programs for that matter.

Enter XML::RSS::JavaScript, a simple subclass of XML::RSS which writes your RSS feed as a sequence of JavaScript print statements. This means you can then write the JavaScript to disk, and a users HTML can simply include it like so:

    <script language="JavaScript" src="/myfeed.js"></script>

What's more the javascript emits HTML that can be fully styled with CSS. See the CSS examples included with the distribution in the css directory.

    <html>
    <head>
    <link rel="stylesheet" type="text/css" href="/css/rollover1.css">
    </head>
    <body>
    Your content here...
    <script language="JavaScript" src="http://my.feed.com//myfeed.js"></script>
    </body>
    </html>

INSTALLATION

    perl Makefile.PL
    make
    make test
    make install

METHODS

save_javascript()

Pass in the path to a file you wish to write your javascript in. Optionally you can pass in the maximum amount of items to include from the feed and a boolean value to switch descriptions on or off (default: on).

    # save all the content 
    save_javascript( '/usr/local/apache/htdocs/rss/myfeed.js' );

    # no more than 10 items:
    save_javascript( '/usr/local/apache/htdocs/rss/myfeed.js', 10 );

    # save all items without descriptions:
    save_javascript( '/usr/local/apache/htdocs/rss/myfeed.js', undef, 0 );

as_javascript()

as_javascript will return a string containing javascript suitable for generating text for your RSS object. You can pass in the maximum amount of items to include by passing in an integer as an argument and a boolean value to switch descriptions on or off (default: on). If you pass in no argument you will get the contents of the entire object.

    $js = $rss->as_javascript();

save_json( )

Pass in the path to a file you wish to write your javascript in. Optionally you can pass in any options that would normally get passed to as_json.

as_json( )

as_json will return a string containing json suitable for generating text for your RSS object. You can pass in the maximum amount of items to include by passing in an integer as an argument. If you pass in no argument you will get the contents of the entire object. You can also pass in the name of the JSON object (default: RSSJSON).

MORE EXAMPLES

Perhaps you want to get an existing RSS feed, suck it in, and write it out as JavaScript for easy consumption.

    use XML::RSS::JavaScript;
    use LWP::Simple;

    my $xml = get( 'http://slashdot.org/slashdot.rss' );
    my $rss = XML::RSS::JavaScript->new();
    
    $rss->parse( $xml );
    print $rss->as_javascript();

SEE ALSO

  • XML::RSS

AUTHORS

Brian Cassidy <bricas@cpan.org>

Ed Summers <ehs@pobox.com>

COPYRIGHT AND LICENSE

Copyright 2003-2012 by Brian Cassidy and Ed Summers

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