Any-Renderer
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- Javascript, Javascript::Anon & JSON
- UrlEncoded
- The formats supported by Data::Serializer (e.g. Config::General and Config::Wrest)
- Any templating language supported by Any::Template
The module will discover any backend modules and offer up their formats.
Once loaded, Any::Renderer will look for a module to handle any new formats it doesn't know about, so adding new formats in a persistent environment won't require the module to be reloaded.
However if you CHANGE which module provides a format you will need to reload Any::Renderer (e.g. send a SIGHUP to modperl).
=head1 METHODS
=over 4
=item $r = new Any::Renderer($format,\%options)
Create a new instance of an Any::Render object using a rendering format of
$format and the options listed in the hash %options (see individual rendering
module documentation for details of which options various modules accept).
=item $string = $r->render($data_structure)
Render the data structure $data_structure with the Any::Renderer object $r.
The resulting string will be returned.
=item $bool = Any::Renderer::requires_template($format)
Determine whether or not the rendering format $format requires a template to
be passed as an option to the object constructor. If the format does require a
template than 1 will be returned, otherwise 0.
=item $list_ref = Any::Renderer::available_formats()
Discover a list of all known rendering formats that the backend modules
provide, e.g. ( 'HTML::Template', 'JavaScript' [, ...]).
=back
=head1 GLOBAL VARIABLES
=over 4
=item @Any::Renderer::LowPriProviders
A list of backend providers which have lower precedence (if there is more than one module which provides a given format).
The earlier things appear in this list, the lower the precedence.
Defaults to C<Data::Serializer> as this provides both XML::Simple and Data::Dumper (which have native Any::Renderer backends).
=back
=head1 WRITING A CUSTOM BACKEND
Back-end modules should have the same public interface as Any::Renderer itself:
=over 4
=item $o = new Any::Renderer::MyBackend($format, \%options);
=item $string = $o->render($data_structure);
=item $bool = requires_template($format)
=item $arrayref = available_formats()
=back
For example:
package Any::Renderer::MyFormat;
sub new {
my ( $class, $format, $options ) = @_;
die("Invalid format $format") unless($format eq 'MyFormat');
return bless({}, $class); #More complex classes might stash away options and format
}
sub render {
my ( $self, $data ) = @_;
return _my_format($data);
}
sub requires_template {
die("Invalid format") unless($_[0] eq 'MyFormat');
return 0; #No template required
}
sub handle_formats {
return [ 'MyFormat' ]; #Just the one
}
=head1 SEE ALSO
=over 4
=item All the modules in the Any::Renderer:: distribution
L<http://search.cpan.org/dist/Any-Renderer>.
Each module lists the formats it supports in the FORMATS section.
Many of also include sample output fragments.
=item L<Any::Template>
A templating engine is a special case of a renderer (one that uses a template, usually from a file or string, to control formatting).
If you are considering exposing another templating language via Any::Renderer, instead consider exposing it via Any::Template.
All the templating engines supported by Any::Template are automatically available via Any::Renderer.
=item L<Data::Serializer>
A serializer is a special case of a renderer which offers bidirectional processing (rendering == serialization, deserialisation does not map to the renderer interface).
If you are considering exposing another serialization mechanism via Any::Renderer, instead consider exposing it via Data::Serializer.
All the serializers supported by Data::Serializer are automatically available via Any::Renderer.
=back
=head1 VERSION
$Revision: 1.14 $ on $Date: 2006/09/04 12:15:52 $ by $Author: johna $
=head1 AUTHOR
Matt Wilson (original version by John Alden) <cpan _at_ bbc _dot_ co _dot_ uk>
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