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package Template::Plugin::JavaScript;
use strict;
use vars qw($VERSION);
$VERSION = '0.01';
require Template::Plugin;
use base qw(Template::Plugin);
use vars qw($FILTER_NAME);
$FILTER_NAME = 'js';
sub new {
my($self, $context, @args) = @_;
my $name = $args[0] || $FILTER_NAME;
$context->define_filter($name, \&encode_js, 0);
return $self;
}
sub encode_js {
local $_ = shift;
return '' unless defined $_;
s!(['"])!\\$1!g;
s!\n!\\n!g;
s!\f!\\f!g;
s!\r!\\r!g;
s!\t!\\t!g;
$_;
}
1;
__END__
=head1 NAME
Template::Plugin::JavaScript - Encodes text to be safe in JavaScript
=head1 SYNOPSIS
[% USE JavaScript %]
<script type="text/javascript">
document.write("[% sometext | js %]");
</script>
=head1 DESCRIPTION
Template::Plugin::JavaScript is a TT filter that filters text so it
can be safely used in JavaScript quotes.
[% USE JavaScript %]
document.write("[% FILTER js %]
Here's some text going on.
[% END %]");
will become:
document.write("\nHere\'s some text going on.\n");
=head1 AUTHOR
The original idea comes from Movable Type's C<encode_js> global filter.
Tatsuhiko Miyagawa E<lt>miyagawa@bulknews.netE<gt>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=head1 SEE ALSO
L<Apache::JavaScript::DocumentWrite>
=cut
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