#!/usr/bin/perl -w
use strict;
use HTML::Parser;
use vars qw(%attribs @elements);
@attribs{qw(
onblur onchange onclick ondblclick onfocus onkeydown onkeypress
onkeyup onload onmousedown onmousemove onmouseout onmouseover
onmouseup onreset onselect onsubmit onunload
)} ++;
@elements = qw( script );
my $parser = HTML::Parser->new(
default_h => [ sub { print shift }, 'text' ],
start_h => [ \&JSstrip, 'tagname, attr, attrseq' ],
ignore_elements => \@elements,
);
if ( $ARGV[0] ) { $parser->parse_file( $ARGV[0] ); }
else { $parser->parse_file( \*STDIN ); }
sub JSstrip {
my ( $tagname, $attr, $attrseq ) = @_;
print "<$tagname";
foreach (@$attrseq) {
# The attribute is a script event handler
unless ( exists $attribs{$_} ) {
# I'm not sure if this regex is 100% reliable
# (esp. in case of escaped quotes?)
my $q = $attr->{$_} =~ /"/ ? "'" : '"';
print qq' $_=$q$attr->{$_}$q';
}
}
print ">";
}