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package URL::Transform::using::HTML::Parser; |
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=head1 NAME |
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URL::Transform::using::HTML::Parser - HTML::Parse parsing of the html/xml for url transformation |
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=head1 SYNOPSIS |
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my $urlt = URL::Transform::using::HTML::Parser->new( |
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'output_function' => sub { $output .= "@_" }, |
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'transform_function' => sub { return (join '|', @_) }, |
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); |
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$urlt->parse_file($Bin.'/data/URL-Transform-01.html'); |
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print "and this is the output: ", $output; |
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=head1 DESCRIPTION |
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Using this module you can performs an url transformation on the HTML/XML documents. |
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This module is used by L. |
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The url matching algorithm is taken from L/eg/hrefsub example |
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script. |
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=cut |
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use warnings; |
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use strict; |
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our $VERSION = '0.01'; |
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use HTML::Parser (); |
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use Carp::Clan; |
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use English '$EVAL_ERROR'; |
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use URL::Transform (); |
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# Construct a hash of tag names that may have links. |
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my $_link_tags = URL::Transform::link_tags(); |
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my $_js_attributes = URL::Transform::js_attributes(); |
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use base 'Class::Accessor::Fast'; |
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=head1 PROPERTIES |
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output_function |
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transform_function |
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parser_for |
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_html_parser |
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=cut |
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__PACKAGE__->mk_accessors(qw{ |
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output_function |
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transform_function |
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parser_for |
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_html_parser |
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}); |
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66
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=head1 METHODS |
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=cut |
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=head2 new |
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Object constructor. |
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Requires: |
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output_function |
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transform_function |
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Optional: |
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parser_for |
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=cut |
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sub new { |
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my $class = shift; |
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89
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my $self = $class->SUPER::new({ @_ }); |
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91
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my $output_function = $self->output_function; |
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my $transform_function = $self->transform_function; |
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94
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croak 'pass print function' |
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if not (ref $output_function eq 'CODE'); |
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97
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croak 'pass transform url function' |
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if not (ref $transform_function eq 'CODE'); |
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$transform_function = sub { $self->transform_function_wrapper(@_) }; |
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101
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102
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my $html_parser = HTML::Parser->new(api_version => 3); |
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104
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# The default is to print everything as it is. |
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$html_parser->handler( |
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default => sub { |
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$output_function->(@_); |
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}, "text" |
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); |
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# cleanup current tag on every end tag |
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# should work fine for our purpouse as we are not interrested in nested tags |
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my $current_tag = ''; |
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$html_parser->handler( |
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end => sub { |
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$current_tag = ''; |
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my $text = shift; |
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119
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# rename to in case javascript is removed |
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if ($self->parser_for->('application/x-javascript') eq 'Remove') { |
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$text = '' if $text =~ m{^
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} |
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$output_function->($text); |
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}, "text" |
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); |
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128
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# Links inside the text of the tag (just |