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# Copyright 2002-2007 Interchange Development Group and others
# Copyright 1996-2002 Red Hat, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version. See the LICENSE file for details.
CodeDef restrict_html Filter
CodeDef restrict_html Description Restrict HTML
CodeDef restrict_html Visibility private
CodeDef restrict_html Routine <<EOR
sub {
my $val = shift;
my %allowed;
$allowed{lc $_} = 1 for @_;
$val =~ s{<(/?(\w[-\w]*)[\s>])}{ ($allowed{lc $2} ? '<' : '&lt;') . $1 }ge;
return $val;
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