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package HTML::Widget::Filter::HTMLEscape;
use warnings;
use strict;
use base 'HTML::Widget::Filter';
=head1 NAME
HTML::Widget::Filter::HTMLEscape - HTML Escaping Filter
=head1 SYNOPSIS
my $f = $widget->filter( 'HTMLEscape', 'foo' );
=head1 DESCRIPTION
HTML Escaping Filter.
=head1 METHODS
=head2 filter
=cut
sub filter {
my ( $self, $value ) = @_;
return unless defined $value;
$value =~ s/&(?!(amp|lt|gt|quot);)/&/g;
$value =~ s/</</g;
$value =~ s/>/>/g;
$value =~ s/\"/"/g;
return $value;
}
=head1 BUGS
L<HTML::Element> now checks for, and refuses to escape already-escaped
characters. This means that if you wish to double-escape characters, you must
now do it yourself.
=head1 AUTHOR
Lyo Kato, C<lyo.kato@gmail.com>
=head1 LICENSE
This library is free software, you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
1;
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