NAME

URL::Transform::SAX::Filter - SAX filter to execute url transformation function when an attribute with url is found

SYNOPSIS

    my $writer = XML::SAX::Writer->new( Output => sub {
        my $type = shift;
        $output_function->(@_);
    } );
    my $filter = URL::Transform::SAX::Filter->new(
        Handler            => $writer,
        transform_function => sub { return join('|', @_) },
    );
    
    my $sax_parser = XML::SAX::ParserFactory->parser(
        'Handler' => $filter,
    );
    
    $sax_parser->parse_file('test.html');

DESCRIPTION

This filter examines every start tag for a presence of tags and their attributes which may hold link attributes. (SEE HTML::Tagset::linkElements)

For each of them the 'transform_function' is triggered which can modify the url. This function receives following arguments:

    $self->{'transform_function'}->(
        'tag_name'       => 'img',
        'attribute_name' => 'src',
        'url'            => 'http://search.cpan.org/s/img/cpan_banner.png',
    );

METHODS

new()

Object constructor.

Requires the 'transform_function' as the argument.

start_element()

This function handles the 'transform_function' triggering with a proper arguments.

xml_decl

Just ignoring xml declaration. Otherwise we'll end-up with <?xml version="1.0"?> added to all documents.

SEE ALSO

URL::Transform, URL::Transform::using::XML::SAX, XML::SAX::Base

AUTHOR

Jozef Kutej