# Copyright (c) 2009 bivio Software, Inc.  All Rights Reserved.
#
# Visit http://www.bivio.biz for more info.
# 
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
# 
# This library is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library;  If not, you may get a copy from:
# http://www.opensource.org/licenses/lgpl-license.html
# 
# $Id: XML.pm,v 1.1 2009/04/13 21:01:28 nagler Exp $
package Bivio::XML;
use strict;
use base 'Bivio::UNIVERSAL';

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.1 $ =~ /\d+/g);
my($_MAP) = {
    '<' => 'lt',
    '>' => 'gt',
    '"' => 'quot',
    "'" => 'apos',
    '&' => 'amp',
};
my($_CHARS) = join('\\', '', sort(keys(%$_MAP)));

sub escape {
    my(undef, $value) = @_;
    return ''
	unless defined($value);
    $value =~ s{([$_CHARS])}{&$_MAP->{$1};}osg;
    return $value;
}

1;