<?php
/**
 * CodeIgniter Skeleton
 *
 * A ready-to-use CodeIgniter skeleton  with tons of new features
 * and a whole new concept of hooks (actions and filters) as well
 * as a ready-to-use and application-free theme and plugins system.
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2020, Kader Bouyakoub <bkader[at]mail[dot]com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package 	CodeIgniter
 * @author 		Kader Bouyakoub <bkader[at]mail[dot]com>
 * @copyright	Copyright (c) 2020, Kader Bouyakoub <bkader[at]mail[dot]com>
 * @license 	https://opensource.org/licenses/MIT	MIT License
 * @link 		http://bit.ly/KaderGhb
 * @since 		2.0.0
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * htmLawed 1.2.4.1, 12 September 2017
 * Copyright Santosh Patnaik
 * Dual licensed with LGPL 3 and GPL 2+
 * A PHP Labware internal utility - www.bioinformatics.org/phplabware/internal_utilities/htmLawed
*/

function htmLawed($t, $C = 1, $S = array())
{
	$C = is_array($C) ? $C : array();
	if (!empty($C['valid_xhtml'])) {
		$C['elements']        = empty($C['elements']) ? '*-acronym-big-center-dir-font-isindex-s-strike-tt' : $C['elements'];
		$C['make_tag_strict'] = isset($C['make_tag_strict']) ? $C['make_tag_strict'] : 2;
		$C['xml:lang']        = isset($C['xml:lang']) ? $C['xml:lang'] : 2;
	}
	// config eles
	$e = array(
		'a' => 1,
		'abbr' => 1,
		'acronym' => 1,
		'address' => 1,
		'applet' => 1,
		'area' => 1,
		'article' => 1,
		'aside' => 1,
		'audio' => 1,
		'b' => 1,
		'bdi' => 1,
		'bdo' => 1,
		'big' => 1,
		'blockquote' => 1,
		'br' => 1,
		'button' => 1,
		'canvas' => 1,
		'caption' => 1,
		'center' => 1,
		'cite' => 1,
		'code' => 1,
		'col' => 1,
		'colgroup' => 1,
		'command' => 1,
		'data' => 1,
		'datalist' => 1,
		'dd' => 1,
		'del' => 1,
		'details' => 1,
		'dfn' => 1,
		'dir' => 1,
		'div' => 1,
		'dl' => 1,
		'dt' => 1,
		'em' => 1,
		'embed' => 1,
		'fieldset' => 1,
		'figcaption' => 1,
		'figure' => 1,
		'font' => 1,
		'footer' => 1,
		'form' => 1,
		'h1' => 1,
		'h2' => 1,
		'h3' => 1,
		'h4' => 1,
		'h5' => 1,
		'h6' => 1,
		'header' => 1,
		'hgroup' => 1,
		'hr' => 1,
		'i' => 1,
		'iframe' => 1,
		'img' => 1,
		'input' => 1,
		'ins' => 1,
		'isindex' => 1,
		'kbd' => 1,
		'keygen' => 1,
		'label' => 1,
		'legend' => 1,
		'li' => 1,
		'link' => 1,
		'main' => 1,
		'map' => 1,
		'mark' => 1,
		'menu' => 1,
		'meta' => 1,
		'meter' => 1,
		'nav' => 1,
		'noscript' => 1,
		'object' => 1,
		'ol' => 1,
		'optgroup' => 1,
		'option' => 1,
		'output' => 1,
		'p' => 1,
		'param' => 1,
		'pre' => 1,
		'progress' => 1,
		'q' => 1,
		'rb' => 1,
		'rbc' => 1,
		'rp' => 1,
		'rt' => 1,
		'rtc' => 1,
		'ruby' => 1,
		's' => 1,
		'samp' => 1,
		'script' => 1,
		'section' => 1,
		'select' => 1,
		'small' => 1,
		'source' => 1,
		'span' => 1,
		'strike' => 1,
		'strong' => 1,
		'style' => 1,
		'sub' => 1,
		'summary' => 1,
		'sup' => 1,
		'table' => 1,
		'tbody' => 1,
		'td' => 1,
		'textarea' => 1,
		'tfoot' => 1,
		'th' => 1,
		'thead' => 1,
		'time' => 1,
		'tr' => 1,
		'track' => 1,
		'tt' => 1,
		'u' => 1,
		'ul' => 1,
		'var' => 1,
		'video' => 1,
		'wbr' => 1
	); // 118 incl. deprecated & some Ruby
	
	if (!empty($C['safe'])) {
		unset($e['applet'], $e['audio'], $e['canvas'], $e['embed'], $e['iframe'], $e['object'], $e['script'], $e['video']);
	}
	$x = !empty($C['elements']) ? str_replace(array(
		"\n",
		"\r",
		"\t",
		' '
	), '', $C['elements']) : '*';
	if ($x == '-*') {
		$e = array();
	} elseif (strpos($x, '*') === false) {
		$e = array_flip(explode(',', $x));
	} else {
		if (isset($x[1])) {
			preg_match_all('`(?:^|-|\+)[^\-+]+?(?=-|\+|$)`', $x, $m, PREG_SET_ORDER);
			for ($i = count($m); --$i >= 0;) {
				$m[$i] = $m[$i][0];
			}
			foreach ($m as $v) {
				if ($v[0] == '+') {
					$e[substr($v, 1)] = 1;
				}
				if ($v[0] == '-' && isset($e[($v = substr($v, 1))]) && !in_array('+' . $v, $m)) {
					unset($e[$v]);
				}
			}
		}
	}
	$C['elements'] =& $e;
	// config attrs
	$x                   = !empty($C['deny_attribute']) ? strtolower(str_replace(array(
		"\n",
		"\r",
		"\t",
		' '
	), '', $C['deny_attribute'])) : '';
	$x                   = array_flip((isset($x[0]) && $x[0] == '*') ? str_replace('/', 'data-', explode('-', str_replace('data-', '/', $x))) : explode(',', $x . (!empty($C['safe']) ? ',on*' : '')));
	$C['deny_attribute'] = $x;
	// config URLs
	$x                   = (isset($C['schemes'][2]) && strpos($C['schemes'], ':')) ? strtolower($C['schemes']) : 'href: aim, feed, file, ftp, gopher, http, https, irc, mailto, news, nntp, sftp, ssh, tel, telnet' . (empty($C['safe']) ? ', app, javascript; *: data, javascript, ' : '; *:') . 'file, http, https';
	$C['schemes']        = array();
	foreach (explode(';', str_replace(array(
		' ',
		"\t",
		"\r",
		"\n"
	), '', $x)) as $v) {
		$x = $x2 = null;
		list($x, $x2) = explode(':', $v, 2);
		if ($x2) {
			$C['schemes'][$x] = array_flip(explode(',', $x2));
		}
	}
	if (!isset($C['schemes']['*'])) {
		$C['schemes']['*'] = array(
			'file' => 1,
			'http' => 1,
			'https' => 1
		);
		if (empty($C['safe'])) {
			$C['schemes']['*'] += array(
				'data' => 1,
				'javascript' => 1
			);
		}
	}
	if (!empty($C['safe']) && empty($C['schemes']['style'])) {
		$C['schemes']['style'] = array(
			'!' => 1
		);
	}
	$C['abs_url'] = isset($C['abs_url']) ? $C['abs_url'] : 0;
	if (!isset($C['base_url']) or !preg_match('`^[a-zA-Z\d.+\-]+://[^/]+/(.+?/)?$`', $C['base_url'])) {
		$C['base_url'] = $C['abs_url'] = 0;
	}
	// config rest
	$C['and_mark']           = empty($C['and_mark']) ? 0 : 1;
	$C['anti_link_spam']     = (isset($C['anti_link_spam']) && is_array($C['anti_link_spam']) && count($C['anti_link_spam']) == 2 && (empty($C['anti_link_spam'][0]) or hl_regex($C['anti_link_spam'][0])) && (empty($C['anti_link_spam'][1]) or hl_regex($C['anti_link_spam'][1]))) ? $C['anti_link_spam'] : 0;
	$C['anti_mail_spam']     = isset($C['anti_mail_spam']) ? $C['anti_mail_spam'] : 0;
	$C['balance']            = isset($C['balance']) ? (bool) $C['balance'] : 1;
	$C['cdata']              = isset($C['cdata']) ? $C['cdata'] : (empty($C['safe']) ? 3 : 0);
	$C['clean_ms_char']      = empty($C['clean_ms_char']) ? 0 : $C['clean_ms_char'];
	$C['comment']            = isset($C['comment']) ? $C['comment'] : (empty($C['safe']) ? 3 : 0);
	$C['css_expression']     = empty($C['css_expression']) ? 0 : 1;
	$C['direct_list_nest']   = empty($C['direct_list_nest']) ? 0 : 1;
	$C['hexdec_entity']      = isset($C['hexdec_entity']) ? $C['hexdec_entity'] : 1;
	$C['hook']               = (!empty($C['hook']) && function_exists($C['hook'])) ? $C['hook'] : 0;
	$C['hook_tag']           = (!empty($C['hook_tag']) && function_exists($C['hook_tag'])) ? $C['hook_tag'] : 0;
	$C['keep_bad']           = isset($C['keep_bad']) ? $C['keep_bad'] : 6;
	$C['lc_std_val']         = isset($C['lc_std_val']) ? (bool) $C['lc_std_val'] : 1;
	$C['make_tag_strict']    = isset($C['make_tag_strict']) ? $C['make_tag_strict'] : 1;
	$C['named_entity']       = isset($C['named_entity']) ? (bool) $C['named_entity'] : 1;
	$C['no_deprecated_attr'] = isset($C['no_deprecated_attr']) ? $C['no_deprecated_attr'] : 1;
	$C['parent']             = isset($C['parent'][0]) ? strtolower($C['parent']) : 'body';
	$C['show_setting']       = !empty($C['show_setting']) ? $C['show_setting'] : 0;
	$C['style_pass']         = empty($C['style_pass']) ? 0 : 1;
	$C['tidy']               = empty($C['tidy']) ? 0 : $C['tidy'];
	$C['unique_ids']         = isset($C['unique_ids']) && (!preg_match('`\W`', $C['unique_ids'])) ? $C['unique_ids'] : 1;
	$C['xml:lang']           = isset($C['xml:lang']) ? $C['xml:lang'] : 0;
	
	if (isset($GLOBALS['C'])) {
		$reC = $GLOBALS['C'];
	}
	$GLOBALS['C'] = $C;
	$S            = is_array($S) ? $S : hl_spec($S);
	if (isset($GLOBALS['S'])) {
		$reS = $GLOBALS['S'];
	}
	$GLOBALS['S'] = $S;
	
	$t = preg_replace('`[\x00-\x08\x0b-\x0c\x0e-\x1f]`', '', $t);
	if ($C['clean_ms_char']) {
		$x = array(
			"\x7f" => '',
			"\x80" => '&#8364;',
			"\x81" => '',
			"\x83" => '&#402;',
			"\x85" => '&#8230;',
			"\x86" => '&#8224;',
			"\x87" => '&#8225;',
			"\x88" => '&#710;',
			"\x89" => '&#8240;',
			"\x8a" => '&#352;',
			"\x8b" => '&#8249;',
			"\x8c" => '&#338;',
			"\x8d" => '',
			"\x8e" => '&#381;',
			"\x8f" => '',
			"\x90" => '',
			"\x95" => '&#8226;',
			"\x96" => '&#8211;',
			"\x97" => '&#8212;',
			"\x98" => '&#732;',
			"\x99" => '&#8482;',
			"\x9a" => '&#353;',
			"\x9b" => '&#8250;',
			"\x9c" => '&#339;',
			"\x9d" => '',
			"\x9e" => '&#382;',
			"\x9f" => '&#376;'
		);
		$x = $x + ($C['clean_ms_char'] == 1 ? array(
			"\x82" => '&#8218;',
			"\x84" => '&#8222;',
			"\x91" => '&#8216;',
			"\x92" => '&#8217;',
			"\x93" => '&#8220;',
			"\x94" => '&#8221;'
		) : array(
			"\x82" => '\'',
			"\x84" => '"',
			"\x91" => '\'',
			"\x92" => '\'',
			"\x93" => '"',
			"\x94" => '"'
		));
		$t = strtr($t, $x);
	}
	if ($C['cdata'] or $C['comment']) {
		$t = preg_replace_callback('`<!(?:(?:--.*?--)|(?:\[CDATA\[.*?\]\]))>`sm', 'hl_cmtcd', $t);
	}
	$t = preg_replace_callback('`&amp;([a-zA-Z][a-zA-Z0-9]{1,30}|#(?:[0-9]{1,8}|[Xx][0-9A-Fa-f]{1,7}));`', 'hl_ent', str_replace('&', '&amp;', $t));
	if ($C['unique_ids'] && !isset($GLOBALS['hl_Ids'])) {
		$GLOBALS['hl_Ids'] = array();
	}
	if ($C['hook']) {
		$t = $C['hook']($t, $C, $S);
	}
	if ($C['show_setting'] && preg_match('`^[a-z][a-z0-9_]*$`i', $C['show_setting'])) {
		$GLOBALS[$C['show_setting']] = array(
			'config' => $C,
			'spec' => $S,
			'time' => microtime()
		);
	}
	// main
	$t = preg_replace_callback('`<(?:(?:\s|$)|(?:[^>]*(?:>|$)))|>`m', 'hl_tag', $t);
	$t = $C['balance'] ? hl_bal($t, $C['keep_bad'], $C['parent']) : $t;
	$t = (($C['cdata'] or $C['comment']) && strpos($t, "\x01") !== false) ? str_replace(array(
		"\x01",
		"\x02",
		"\x03",
		"\x04",
		"\x05"
	), array(
		'',
		'',
		'&',
		'<',
		'>'
	), $t) : $t;
	$t = $C['tidy'] ? hl_tidy($t, $C['tidy'], $C['parent']) : $t;
	unset($C, $e);
	if (isset($reC)) {
		$GLOBALS['C'] = $reC;
	}
	if (isset($reS)) {
		$GLOBALS['S'] = $reS;
	}
	return $t;
}

function hl_attrval($a, $t, $p)
{
	// check attr val against $S
	static $ma = array('accesskey', 'class', 'itemtype', 'rel');
	$s = in_array($a, $ma) ? ' ' : ($a == 'srcset' ? ',' : '');
	$r = array();
	$t = !empty($s) ? explode($s, $t) : array(
		$t
	);
	foreach ($t as $tk => $tv) {
		$o  = 1;
		$tv = trim($tv);
		$l  = strlen($tv);
		foreach ($p as $k => $v) {
			if (!$l) {
				continue;
			}
			switch ($k) {
				case 'maxlen':
					if ($l > $v) {
						$o = 0;
					}
					break;
				case 'minlen':
					if ($l < $v) {
						$o = 0;
					}
					break;
				case 'maxval':
					if ((float) ($tv) > $v) {
						$o = 0;
					}
					break;
				case 'minval':
					if ((float) ($tv) < $v) {
						$o = 0;
					}
					break;
				case 'match':
					if (!preg_match($v, $tv)) {
						$o = 0;
					}
					break;
				case 'nomatch':
					if (preg_match($v, $tv)) {
						$o = 0;
					}
					break;
				case 'oneof':
					$m = 0;
					foreach (explode('|', $v) as $n) {
						if ($tv == $n) {
							$m = 1;
							break;
						}
					}
					$o = $m;
					break;
				case 'noneof':
					$m = 1;
					foreach (explode('|', $v) as $n) {
						if ($tv == $n) {
							$m = 0;
							break;
						}
					}
					$o = $m;
					break;
				default:
					break;
			}
			if (!$o) {
				break;
			}
		}
		if ($o) {
			$r[] = $tv;
		}
	}
	if ($s == ',') {
		$s = ', ';
	}
	$r = implode($s, $r);
	return (isset($r[0]) ? $r : (isset($p['default']) ? $p['default'] : 0));
}

function hl_bal($t, $do = 1, $in = 'div')
{
	// balance tags
	// by content
	$cB  = array(
		'blockquote' => 1,
		'form' => 1,
		'map' => 1,
		'noscript' => 1
	); // Block
	$cE  = array(
		'area' => 1,
		'br' => 1,
		'col' => 1,
		'command' => 1,
		'embed' => 1,
		'hr' => 1,
		'img' => 1,
		'input' => 1,
		'isindex' => 1,
		'keygen' => 1,
		'link' => 1,
		'meta' => 1,
		'param' => 1,
		'source' => 1,
		'track' => 1,
		'wbr' => 1
	); // Empty
	$cF  = array(
		'a' => 1,
		'article' => 1,
		'aside' => 1,
		'audio' => 1,
		'button' => 1,
		'canvas' => 1,
		'del' => 1,
		'details' => 1,
		'div' => 1,
		'dd' => 1,
		'fieldset' => 1,
		'figure' => 1,
		'footer' => 1,
		'header' => 1,
		'iframe' => 1,
		'ins' => 1,
		'li' => 1,
		'main' => 1,
		'menu' => 1,
		'nav' => 1,
		'noscript' => 1,
		'object' => 1,
		'section' => 1,
		'style' => 1,
		'td' => 1,
		'th' => 1,
		'video' => 1
	); // Flow; later context-wise dynamic move of ins & del to $cI
	$cI  = array(
		'abbr' => 1,
		'acronym' => 1,
		'address' => 1,
		'b' => 1,
		'bdi' => 1,
		'bdo' => 1,
		'big' => 1,
		'caption' => 1,
		'cite' => 1,
		'code' => 1,
		'data' => 1,
		'datalist' => 1,
		'dfn' => 1,
		'dt' => 1,
		'em' => 1,
		'figcaption' => 1,
		'font' => 1,
		'h1' => 1,
		'h2' => 1,
		'h3' => 1,
		'h4' => 1,
		'h5' => 1,
		'h6' => 1,
		'hgroup' => 1,
		'i' => 1,
		'kbd' => 1,
		'label' => 1,
		'legend' => 1,
		'mark' => 1,
		'meter' => 1,
		'output' => 1,
		'p' => 1,
		'pre' => 1,
		'progress' => 1,
		'q' => 1,
		'rb' => 1,
		'rt' => 1,
		's' => 1,
		'samp' => 1,
		'small' => 1,
		'span' => 1,
		'strike' => 1,
		'strong' => 1,
		'sub' => 1,
		'summary' => 1,
		'sup' => 1,
		'time' => 1,
		'tt' => 1,
		'u' => 1,
		'var' => 1
	); // Inline
	$cN  = array(
		'a' => array(
			'a' => 1,
			'address' => 1,
			'button' => 1,
			'details' => 1,
			'embed' => 1,
			'keygen' => 1,
			'label' => 1,
			'select' => 1,
			'textarea' => 1
		),
		'address' => array(
			'address' => 1,
			'article' => 1,
			'aside' => 1,
			'header' => 1,
			'keygen' => 1,
			'footer' => 1,
			'nav' => 1,
			'section' => 1
		),
		'button' => array(
			'a' => 1,
			'address' => 1,
			'button' => 1,
			'details' => 1,
			'embed' => 1,
			'fieldset' => 1,
			'form' => 1,
			'iframe' => 1,
			'input' => 1,
			'keygen' => 1,
			'label' => 1,
			'select' => 1,
			'textarea' => 1
		),
		'fieldset' => array(
			'fieldset' => 1
		),
		'footer' => array(
			'header' => 1,
			'footer' => 1
		),
		'form' => array(
			'form' => 1
		),
		'header' => array(
			'header' => 1,
			'footer' => 1
		),
		'label' => array(
			'label' => 1
		),
		'main' => array(
			'main' => 1
		),
		'meter' => array(
			'meter' => 1
		),
		'noscript' => array(
			'script' => 1
		),
		'pre' => array(
			'big' => 1,
			'font' => 1,
			'img' => 1,
			'object' => 1,
			'script' => 1,
			'small' => 1,
			'sub' => 1,
			'sup' => 1
		),
		'progress' => array(
			'progress' => 1
		),
		'rb' => array(
			'ruby' => 1
		),
		'rt' => array(
			'ruby' => 1
		),
		'time' => array(
			'time' => 1
		)
	); // Illegal
	$cN2 = array_keys($cN);
	$cS  = array(
		'colgroup' => array(
			'col' => 1
		),
		'datalist' => array(
			'option' => 1
		),
		'dir' => array(
			'li' => 1
		),
		'dl' => array(
			'dd' => 1,
			'dt' => 1
		),
		'hgroup' => array(
			'h1' => 1,
			'h2' => 1,
			'h3' => 1,
			'h4' => 1,
			'h5' => 1,
			'h6' => 1
		),
		'menu' => array(
			'li' => 1
		),
		'ol' => array(
			'li' => 1
		),
		'optgroup' => array(
			'option' => 1
		),
		'option' => array(
			'#pcdata' => 1
		),
		'rbc' => array(
			'rb' => 1
		),
		'rp' => array(
			'#pcdata' => 1
		),
		'rtc' => array(
			'rt' => 1
		),
		'ruby' => array(
			'rb' => 1,
			'rbc' => 1,
			'rp' => 1,
			'rt' => 1,
			'rtc' => 1
		),
		'select' => array(
			'optgroup' => 1,
			'option' => 1
		),
		'script' => array(
			'#pcdata' => 1
		),
		'table' => array(
			'caption' => 1,
			'col' => 1,
			'colgroup' => 1,
			'tfoot' => 1,
			'tbody' => 1,
			'tr' => 1,
			'thead' => 1
		),
		'tbody' => array(
			'tr' => 1
		),
		'tfoot' => array(
			'tr' => 1
		),
		'textarea' => array(
			'#pcdata' => 1
		),
		'thead' => array(
			'tr' => 1
		),
		'tr' => array(
			'td' => 1,
			'th' => 1
		),
		'ul' => array(
			'li' => 1
		)
	); // Specific - immediate parent-child
	if ($GLOBALS['C']['direct_list_nest']) {
		$cS['ol'] = $cS['ul'] = $cS['menu'] += array(
			'menu' => 1,
			'ol' => 1,
			'ul' => 1
		);
	}
	$cO = array(
		'address' => array(
			'p' => 1
		),
		'applet' => array(
			'param' => 1
		),
		'audio' => array(
			'source' => 1,
			'track' => 1
		),
		'blockquote' => array(
			'script' => 1
		),
		'details' => array(
			'summary' => 1
		),
		'fieldset' => array(
			'legend' => 1,
			'#pcdata' => 1
		),
		'figure' => array(
			'figcaption' => 1
		),
		'form' => array(
			'script' => 1
		),
		'map' => array(
			'area' => 1
		),
		'object' => array(
			'param' => 1,
			'embed' => 1
		),
		'video' => array(
			'source' => 1,
			'track' => 1
		)
	); // Other
	$cT = array(
		'colgroup' => 1,
		'dd' => 1,
		'dt' => 1,
		'li' => 1,
		'option' => 1,
		'p' => 1,
		'td' => 1,
		'tfoot' => 1,
		'th' => 1,
		'thead' => 1,
		'tr' => 1
	); // Omitable closing
	// block/inline type; a/ins/del both type; #pcdata: text
	$eB = array(
		'a' => 1,
		'address' => 1,
		'article' => 1,
		'aside' => 1,
		'blockquote' => 1,
		'center' => 1,
		'del' => 1,
		'details' => 1,
		'dir' => 1,
		'dl' => 1,
		'div' => 1,
		'fieldset' => 1,
		'figure' => 1,
		'footer' => 1,
		'form' => 1,
		'ins' => 1,
		'h1' => 1,
		'h2' => 1,
		'h3' => 1,
		'h4' => 1,
		'h5' => 1,
		'h6' => 1,
		'header' => 1,
		'hr' => 1,
		'isindex' => 1,
		'main' => 1,
		'menu' => 1,
		'nav' => 1,
		'noscript' => 1,
		'ol' => 1,
		'p' => 1,
		'pre' => 1,
		'section' => 1,
		'style' => 1,
		'table' => 1,
		'ul' => 1
	);
	$eI = array(
		'#pcdata' => 1,
		'a' => 1,
		'abbr' => 1,
		'acronym' => 1,
		'applet' => 1,
		'audio' => 1,
		'b' => 1,
		'bdi' => 1,
		'bdo' => 1,
		'big' => 1,
		'br' => 1,
		'button' => 1,
		'canvas' => 1,
		'cite' => 1,
		'code' => 1,
		'command' => 1,
		'data' => 1,
		'datalist' => 1,
		'del' => 1,
		'dfn' => 1,
		'em' => 1,
		'embed' => 1,
		'figcaption' => 1,
		'font' => 1,
		'i' => 1,
		'iframe' => 1,
		'img' => 1,
		'input' => 1,
		'ins' => 1,
		'kbd' => 1,
		'label' => 1,
		'link' => 1,
		'map' => 1,
		'mark' => 1,
		'meta' => 1,
		'meter' => 1,
		'object' => 1,
		'output' => 1,
		'progress' => 1,
		'q' => 1,
		'ruby' => 1,
		's' => 1,
		'samp' => 1,
		'select' => 1,
		'script' => 1,
		'small' => 1,
		'span' => 1,
		'strike' => 1,
		'strong' => 1,
		'sub' => 1,
		'summary' => 1,
		'sup' => 1,
		'textarea' => 1,
		'time' => 1,
		'tt' => 1,
		'u' => 1,
		'var' => 1,
		'video' => 1,
		'wbr' => 1
	);
	$eN = array(
		'a' => 1,
		'address' => 1,
		'article' => 1,
		'aside' => 1,
		'big' => 1,
		'button' => 1,
		'details' => 1,
		'embed' => 1,
		'fieldset' => 1,
		'font' => 1,
		'footer' => 1,
		'form' => 1,
		'header' => 1,
		'iframe' => 1,
		'img' => 1,
		'input' => 1,
		'keygen' => 1,
		'label' => 1,
		'meter' => 1,
		'nav' => 1,
		'object' => 1,
		'progress' => 1,
		'ruby' => 1,
		'script' => 1,
		'select' => 1,
		'small' => 1,
		'sub' => 1,
		'sup' => 1,
		'textarea' => 1,
		'time' => 1
	); // Exclude from specific ele; $cN values
	$eO = array(
		'area' => 1,
		'caption' => 1,
		'col' => 1,
		'colgroup' => 1,
		'command' => 1,
		'dd' => 1,
		'dt' => 1,
		'hgroup' => 1,
		'keygen' => 1,
		'legend' => 1,
		'li' => 1,
		'optgroup' => 1,
		'option' => 1,
		'param' => 1,
		'rb' => 1,
		'rbc' => 1,
		'rp' => 1,
		'rt' => 1,
		'rtc' => 1,
		'script' => 1,
		'source' => 1,
		'tbody' => 1,
		'td' => 1,
		'tfoot' => 1,
		'thead' => 1,
		'th' => 1,
		'tr' => 1,
		'track' => 1
	); // Missing in $eB & $eI
	$eF = $eB + $eI;
	
	// $in sets allowed child
	$in = ((isset($eF[$in]) && $in != '#pcdata') or isset($eO[$in])) ? $in : 'div';
	if (isset($cE[$in])) {
		return (!$do ? '' : str_replace(array(
			'<',
			'>'
		), array(
			'&lt;',
			'&gt;'
		), $t));
	}
	if (isset($cS[$in])) {
		$inOk = $cS[$in];
	} elseif (isset($cI[$in])) {
		$inOk      = $eI;
		$cI['del'] = 1;
		$cI['ins'] = 1;
	} elseif (isset($cF[$in])) {
		$inOk = $eF;
		unset($cI['del'], $cI['ins']);
	} elseif (isset($cB[$in])) {
		$inOk = $eB;
		unset($cI['del'], $cI['ins']);
	}
	if (isset($cO[$in])) {
		$inOk = $inOk + $cO[$in];
	}
	if (isset($cN[$in])) {
		$inOk = array_diff_assoc($inOk, $cN[$in]);
	}
	
	$t  = explode('<', $t);
	$ok = $q = array(); // $q seq list of open non-empty ele
	ob_start();
	
	for ($i = -1, $ci = count($t); ++$i < $ci;) {
		// allowed $ok in parent $p
		if ($ql = count($q)) {
			$p   = array_pop($q);
			$q[] = $p;
			if (isset($cS[$p])) {
				$ok = $cS[$p];
			} elseif (isset($cI[$p])) {
				$ok        = $eI;
				$cI['del'] = 1;
				$cI['ins'] = 1;
			} elseif (isset($cF[$p])) {
				$ok = $eF;
				unset($cI['del'], $cI['ins']);
			} elseif (isset($cB[$p])) {
				$ok = $eB;
				unset($cI['del'], $cI['ins']);
			}
			if (isset($cO[$p])) {
				$ok = $ok + $cO[$p];
			}
			if (isset($cN[$p])) {
				$ok = array_diff_assoc($ok, $cN[$p]);
			}
		} else {
			$ok = $inOk;
			unset($cI['del'], $cI['ins']);
		}
		// bad tags, & ele content
		if (isset($e) && ($do == 1 or (isset($ok['#pcdata']) && ($do == 3 or $do == 5)))) {
			echo '&lt;', $s, $e, $a, '&gt;';
		}
		if (isset($x[0])) {
			if (strlen(trim($x)) && (($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql))) {
				echo '<div>', $x, '</div>';
			} elseif ($do < 3 or isset($ok['#pcdata'])) {
				echo $x;
			} elseif (strpos($x, "\x02\x04")) {
				foreach (preg_split('`(\x01\x02[^\x01\x02]+\x02\x01)`', $x, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $v) {
					echo (substr($v, 0, 2) == "\x01\x02" ? $v : ($do > 4 ? preg_replace('`\S`', '', $v) : ''));
				}
			} elseif ($do > 4) {
				echo preg_replace('`\S`', '', $x);
			}
		}
		// get markup
		if (!preg_match('`^(/?)([a-z1-6]+)([^>]*)>(.*)`sm', $t[$i], $r)) {
			$x = $t[$i];
			continue;
		}
		$s = null;
		$e = null;
		$a = null;
		$x = null;
		list($all, $s, $e, $a, $x) = $r;
		// close tag
		if ($s) {
			if (isset($cE[$e]) or !in_array($e, $q)) {
				continue;
			} // Empty/unopen
			if ($p == $e) {
				array_pop($q);
				echo '</', $e, '>';
				unset($e);
				continue;
			} // Last open
			$add = ''; // Nesting - close open tags that need to be
			for ($j = -1, $cj = count($q); ++$j < $cj;) {
				if (($d = array_pop($q)) == $e) {
					break;
				} else {
					$add .= "</{$d}>";
				}
			}
			echo $add, '</', $e, '>';
			unset($e);
			continue;
		}
		// open tag
		// $cB ele needs $eB ele as child
		if (isset($cB[$e]) && strlen(trim($x))) {
			$t[$i] = "{$e}{$a}>";
			array_splice($t, $i + 1, 0, 'div>' . $x);
			unset($e, $x);
			++$ci;
			--$i;
			continue;
		}
		if ((($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql)) && !isset($eB[$e]) && !isset($ok[$e])) {
			array_splice($t, $i, 0, 'div>');
			unset($e, $x);
			++$ci;
			--$i;
			continue;
		}
		// if no open ele, $in = parent; mostly immediate parent-child relation should hold
		if (!$ql or !isset($eN[$e]) or !array_intersect($q, $cN2)) {
			if (!isset($ok[$e])) {
				if ($ql && isset($cT[$p])) {
					echo '</', array_pop($q), '>';
					unset($e, $x);
					--$i;
				}
				continue;
			}
			if (!isset($cE[$e])) {
				$q[] = $e;
			}
			echo '<', $e, $a, '>';
			unset($e);
			continue;
		}
		// specific parent-child
		if (isset($cS[$p][$e])) {
			if (!isset($cE[$e])) {
				$q[] = $e;
			}
			echo '<', $e, $a, '>';
			unset($e);
			continue;
		}
		// nesting
		$add = '';
		$q2  = array();
		for ($k = -1, $kc = count($q); ++$k < $kc;) {
			$d   = $q[$k];
			$ok2 = array();
			if (isset($cS[$d])) {
				$q2[] = $d;
				continue;
			}
			$ok2 = isset($cI[$d]) ? $eI : $eF;
			if (isset($cO[$d])) {
				$ok2 = $ok2 + $cO[$d];
			}
			if (isset($cN[$d])) {
				$ok2 = array_diff_assoc($ok2, $cN[$d]);
			}
			if (!isset($ok2[$e])) {
				if (!$k && !isset($inOk[$e])) {
					continue 2;
				}
				$add = "</{$d}>";
				for (; ++$k < $kc;) {
					$add = "</{$q[$k]}>{$add}";
				}
				break;
			} else {
				$q2[] = $d;
			}
		}
		$q = $q2;
		if (!isset($cE[$e])) {
			$q[] = $e;
		}
		echo $add, '<', $e, $a, '>';
		unset($e);
		continue;
	}
	
	// end
	if ($ql = count($q)) {
		$p   = array_pop($q);
		$q[] = $p;
		if (isset($cS[$p])) {
			$ok = $cS[$p];
		} elseif (isset($cI[$p])) {
			$ok        = $eI;
			$cI['del'] = 1;
			$cI['ins'] = 1;
		} elseif (isset($cF[$p])) {
			$ok = $eF;
			unset($cI['del'], $cI['ins']);
		} elseif (isset($cB[$p])) {
			$ok = $eB;
			unset($cI['del'], $cI['ins']);
		}
		if (isset($cO[$p])) {
			$ok = $ok + $cO[$p];
		}
		if (isset($cN[$p])) {
			$ok = array_diff_assoc($ok, $cN[$p]);
		}
	} else {
		$ok = $inOk;
		unset($cI['del'], $cI['ins']);
	}
	if (isset($e) && ($do == 1 or (isset($ok['#pcdata']) && ($do == 3 or $do == 5)))) {
		echo '&lt;', $s, $e, $a, '&gt;';
	}
	if (isset($x[0])) {
		if (strlen(trim($x)) && (($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql))) {
			echo '<div>', $x, '</div>';
		} elseif ($do < 3 or isset($ok['#pcdata'])) {
			echo $x;
		} elseif (strpos($x, "\x02\x04")) {
			foreach (preg_split('`(\x01\x02[^\x01\x02]+\x02\x01)`', $x, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $v) {
				echo (substr($v, 0, 2) == "\x01\x02" ? $v : ($do > 4 ? preg_replace('`\S`', '', $v) : ''));
			}
		} elseif ($do > 4) {
			echo preg_replace('`\S`', '', $x);
		}
	}
	while (!empty($q) && ($e = array_pop($q))) {
		echo '</', $e, '>';
	}
	$o = ob_get_contents();
	ob_end_clean();
	return $o;
}

function hl_cmtcd($t)
{
	// comment/CDATA sec handler
	$t = $t[0];
	global $C;
	if (!($v = $C[$n = $t[3] == '-' ? 'comment' : 'cdata'])) {
		return $t;
	}
	if ($v == 1) {
		return '';
	}
	if ($n == 'comment' && $v < 4) {
		if (substr(($t = preg_replace('`--+`', '-', substr($t, 4, -3))), -1) != ' ') {
			$t .= ' ';
		}
	} else {
		$t = substr($t, 1, -1);
	}
	$t = $v == 2 ? str_replace(array(
		'&',
		'<',
		'>'
	), array(
		'&amp;',
		'&lt;',
		'&gt;'
	), $t) : $t;
	return str_replace(array(
		'&',
		'<',
		'>'
	), array(
		"\x03",
		"\x04",
		"\x05"
	), ($n == 'comment' ? "\x01\x02\x04!--$t--\x05\x02\x01" : "\x01\x01\x04$t\x05\x01\x01"));
}

function hl_ent($t)
{
	// entitity handler
	global $C;
	$t = $t[1];
	static $U = array('quot' => 1, 'amp' => 1, 'lt' => 1, 'gt' => 1);
	static $N = array('fnof' => '402', 'Alpha' => '913', 'Beta' => '914', 'Gamma' => '915', 'Delta' => '916', 'Epsilon' => '917', 'Zeta' => '918', 'Eta' => '919', 'Theta' => '920', 'Iota' => '921', 'Kappa' => '922', 'Lambda' => '923', 'Mu' => '924', 'Nu' => '925', 'Xi' => '926', 'Omicron' => '927', 'Pi' => '928', 'Rho' => '929', 'Sigma' => '931', 'Tau' => '932', 'Upsilon' => '933', 'Phi' => '934', 'Chi' => '935', 'Psi' => '936', 'Omega' => '937', 'alpha' => '945', 'beta' => '946', 'gamma' => '947', 'delta' => '948', 'epsilon' => '949', 'zeta' => '950', 'eta' => '951', 'theta' => '952', 'iota' => '953', 'kappa' => '954', 'lambda' => '955', 'mu' => '956', 'nu' => '957', 'xi' => '958', 'omicron' => '959', 'pi' => '960', 'rho' => '961', 'sigmaf' => '962', 'sigma' => '963', 'tau' => '964', 'upsilon' => '965', 'phi' => '966', 'chi' => '967', 'psi' => '968', 'omega' => '969', 'thetasym' => '977', 'upsih' => '978', 'piv' => '982', 'bull' => '8226', 'hellip' => '8230', 'prime' => '8242', 'Prime' => '8243', 'oline' => '8254', 'frasl' => '8260', 'weierp' => '8472', 'image' => '8465', 'real' => '8476', 'trade' => '8482', 'alefsym' => '8501', 'larr' => '8592', 'uarr' => '8593', 'rarr' => '8594', 'darr' => '8595', 'harr' => '8596', 'crarr' => '8629', 'lArr' => '8656', 'uArr' => '8657', 'rArr' => '8658', 'dArr' => '8659', 'hArr' => '8660', 'forall' => '8704', 'part' => '8706', 'exist' => '8707', 'empty' => '8709', 'nabla' => '8711', 'isin' => '8712', 'notin' => '8713', 'ni' => '8715', 'prod' => '8719', 'sum' => '8721', 'minus' => '8722', 'lowast' => '8727', 'radic' => '8730', 'prop' => '8733', 'infin' => '8734', 'ang' => '8736', 'and' => '8743', 'or' => '8744', 'cap' => '8745', 'cup' => '8746', 'int' => '8747', 'there4' => '8756', 'sim' => '8764', 'cong' => '8773', 'asymp' => '8776', 'ne' => '8800', 'equiv' => '8801', 'le' => '8804', 'ge' => '8805', 'sub' => '8834', 'sup' => '8835', 'nsub' => '8836', 'sube' => '8838', 'supe' => '8839', 'oplus' => '8853', 'otimes' => '8855', 'perp' => '8869', 'sdot' => '8901', 'lceil' => '8968', 'rceil' => '8969', 'lfloor' => '8970', 'rfloor' => '8971', 'lang' => '9001', 'rang' => '9002', 'loz' => '9674', 'spades' => '9824', 'clubs' => '9827', 'hearts' => '9829', 'diams' => '9830', 'apos' => '39', 'OElig' => '338', 'oelig' => '339', 'Scaron' => '352', 'scaron' => '353', 'Yuml' => '376', 'circ' => '710', 'tilde' => '732', 'ensp' => '8194', 'emsp' => '8195', 'thinsp' => '8201', 'zwnj' => '8204', 'zwj' => '8205', 'lrm' => '8206', 'rlm' => '8207', 'ndash' => '8211', 'mdash' => '8212', 'lsquo' => '8216', 'rsquo' => '8217', 'sbquo' => '8218', 'ldquo' => '8220', 'rdquo' => '8221', 'bdquo' => '8222', 'dagger' => '8224', 'Dagger' => '8225', 'permil' => '8240', 'lsaquo' => '8249', 'rsaquo' => '8250', 'euro' => '8364', 'nbsp' => '160', 'iexcl' => '161', 'cent' => '162', 'pound' => '163', 'curren' => '164', 'yen' => '165', 'brvbar' => '166', 'sect' => '167', 'uml' => '168', 'copy' => '169', 'ordf' => '170', 'laquo' => '171', 'not' => '172', 'shy' => '173', 'reg' => '174', 'macr' => '175', 'deg' => '176', 'plusmn' => '177', 'sup2' => '178', 'sup3' => '179', 'acute' => '180', 'micro' => '181', 'para' => '182', 'middot' => '183', 'cedil' => '184', 'sup1' => '185', 'ordm' => '186', 'raquo' => '187', 'frac14' => '188', 'frac12' => '189', 'frac34' => '190', 'iquest' => '191', 'Agrave' => '192', 'Aacute' => '193', 'Acirc' => '194', 'Atilde' => '195', 'Auml' => '196', 'Aring' => '197', 'AElig' => '198', 'Ccedil' => '199', 'Egrave' => '200', 'Eacute' => '201', 'Ecirc' => '202', 'Euml' => '203', 'Igrave' => '204', 'Iacute' => '205', 'Icirc' => '206', 'Iuml' => '207', 'ETH' => '208', 'Ntilde' => '209', 'Ograve' => '210', 'Oacute' => '211', 'Ocirc' => '212', 'Otilde' => '213', 'Ouml' => '214', 'times' => '215', 'Oslash' => '216', 'Ugrave' => '217', 'Uacute' => '218', 'Ucirc' => '219', 'Uuml' => '220', 'Yacute' => '221', 'THORN' => '222', 'szlig' => '223', 'agrave' => '224', 'aacute' => '225', 'acirc' => '226', 'atilde' => '227', 'auml' => '228', 'aring' => '229', 'aelig' => '230', 'ccedil' => '231', 'egrave' => '232', 'eacute' => '233', 'ecirc' => '234', 'euml' => '235', 'igrave' => '236', 'iacute' => '237', 'icirc' => '238', 'iuml' => '239', 'eth' => '240', 'ntilde' => '241', 'ograve' => '242', 'oacute' => '243', 'ocirc' => '244', 'otilde' => '245', 'ouml' => '246', 'divide' => '247', 'oslash' => '248', 'ugrave' => '249', 'uacute' => '250', 'ucirc' => '251', 'uuml' => '252', 'yacute' => '253', 'thorn' => '254', 'yuml' => '255');
	if ($t[0] != '#') {
		return ($C['and_mark'] ? "\x06" : '&') . (isset($U[$t]) ? $t : (isset($N[$t]) ? (!$C['named_entity'] ? '#' . ($C['hexdec_entity'] > 1 ? 'x' . dechex($N[$t]) : $N[$t]) : $t) : 'amp;' . $t)) . ';';
	}
	if (($n = ctype_digit($t = substr($t, 1)) ? intval($t) : hexdec(substr($t, 1))) < 9 or ($n > 13 && $n < 32) or $n == 11 or $n == 12 or ($n > 126 && $n < 160 && $n != 133) or ($n > 55295 && ($n < 57344 or ($n > 64975 && $n < 64992) or $n == 65534 or $n == 65535 or $n > 1114111))) {
		return ($C['and_mark'] ? "\x06" : '&') . "amp;#{$t};";
	}
	return ($C['and_mark'] ? "\x06" : '&') . '#' . (((ctype_digit($t) && $C['hexdec_entity'] < 2) or !$C['hexdec_entity']) ? $n : 'x' . dechex($n)) . ';';
}

function hl_prot($p, $c = null)
{
	// check URL scheme
	global $C;
	$b = $a = '';
	if ($c == null) {
		$c = 'style';
		$b = $p[1];
		$a = $p[3];
		$p = trim($p[2]);
	}
	$c = isset($C['schemes'][$c]) ? $C['schemes'][$c] : $C['schemes']['*'];
	static $d = 'denied:';
	if (isset($c['!']) && substr($p, 0, 7) != $d) {
		$p = "$d$p";
	}
	if (isset($c['*']) or !strcspn($p, '#?;') or (substr($p, 0, 7) == $d)) {
		return "{$b}{$p}{$a}";
	} // All ok, frag, query, param
	if (preg_match('`^([^:?[@!$()*,=/\'\]]+?)(:|&#(58|x3a);|%3a|\\\\0{0,4}3a).`i', $p, $m) && !isset($c[strtolower($m[1])])) { // Denied prot
		return "{$b}{$d}{$p}{$a}";
	}
	if ($C['abs_url']) {
		if ($C['abs_url'] == -1 && strpos($p, $C['base_url']) === 0) { // Make url rel
			$p = substr($p, strlen($C['base_url']));
		} elseif (empty($m[1])) { // Make URL abs
			if (substr($p, 0, 2) == '//') {
				$p = substr($C['base_url'], 0, strpos($C['base_url'], ':') + 1) . $p;
			} elseif ($p[0] == '/') {
				$p = preg_replace('`(^.+?://[^/]+)(.*)`', '$1', $C['base_url']) . $p;
			} elseif (strcspn($p, './')) {
				$p = $C['base_url'] . $p;
			} else {
				preg_match('`^([a-zA-Z\d\-+.]+://[^/]+)(.*)`', $C['base_url'], $m);
				$p = preg_replace('`(?<=/)\./`', '', $m[2] . $p);
				while (preg_match('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', $p)) {
					$p = preg_replace('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', '', $p);
				}
				$p = $m[1] . $p;
			}
		}
	}
	return "{$b}{$p}{$a}";
}

function hl_regex($p)
{
	// check regex
	if (empty($p)) {
		return 0;
	}
	if ($v = function_exists('error_clear_last') && function_exists('error_get_last')) {
		error_clear_last();
	} else {
		if ($t = ini_get('track_errors')) {
			$o = isset($php_errormsg) ? $php_errormsg : null;
		} else {
			ini_set('track_errors', 1);
		}
		unset($php_errormsg);
	}
	if (($d = ini_get('display_errors'))) {
		ini_set('display_errors', 0);
	}
	preg_match($p, '');
	if ($v) {
		$r = error_get_last() == null ? 1 : 0;
	} else {
		$r = isset($php_errormsg) ? 0 : 1;
		if ($t) {
			$php_errormsg = isset($o) ? $o : null;
		} else {
			ini_set('track_errors', 0);
		}
	}
	if ($d) {
		ini_set('display_errors', 1);
	}
	return $r;
}

function hl_spec($t)
{
	// final $spec
	$s = array();
	if (!function_exists('hl_aux1')) {
		function hl_aux1($m)
		{
			return substr(str_replace(array(
				";",
				"|",
				"~",
				" ",
				",",
				"/",
				"(",
				")",
				'`"'
			), array(
				"\x01",
				"\x02",
				"\x03",
				"\x04",
				"\x05",
				"\x06",
				"\x07",
				"\x08",
				'"'
			), $m[0]), 1, -1);
		}
	}
	$t = str_replace(array(
		"\t",
		"\r",
		"\n",
		' '
	), '', preg_replace_callback('/"(?>(`.|[^"])*)"/sm', 'hl_aux1', trim($t)));
	for ($i = count(($t = explode(';', $t))); --$i >= 0;) {
		$w = $t[$i];
		if (empty($w) or ($e = strpos($w, '=')) === false or !strlen(($a = substr($w, $e + 1)))) {
			continue;
		}
		$y = $n = array();
		foreach (explode(',', $a) as $v) {
			if (!preg_match('`^([a-z:\-\*]+)(?:\((.*?)\))?`i', $v, $m)) {
				continue;
			}
			if (($x = strtolower($m[1])) == '-*') {
				$n['*'] = 1;
				continue;
			}
			if ($x[0] == '-') {
				$n[substr($x, 1)] = 1;
				continue;
			}
			if (!isset($m[2])) {
				$y[$x] = 1;
				continue;
			}
			foreach (explode('/', $m[2]) as $m) {
				if (empty($m) or ($p = strpos($m, '=')) == 0 or $p < 5) {
					$y[$x] = 1;
					continue;
				}
				$y[$x][strtolower(substr($m, 0, $p))] = str_replace(array(
					"\x01",
					"\x02",
					"\x03",
					"\x04",
					"\x05",
					"\x06",
					"\x07",
					"\x08"
				), array(
					";",
					"|",
					"~",
					" ",
					",",
					"/",
					"(",
					")"
				), substr($m, $p + 1));
			}
			if (isset($y[$x]['match']) && !hl_regex($y[$x]['match'])) {
				unset($y[$x]['match']);
			}
			if (isset($y[$x]['nomatch']) && !hl_regex($y[$x]['nomatch'])) {
				unset($y[$x]['nomatch']);
			}
		}
		if (!count($y) && !count($n)) {
			continue;
		}
		foreach (explode(',', substr($w, 0, $e)) as $v) {
			if (!strlen(($v = strtolower($v)))) {
				continue;
			}
			if (count($y)) {
				if (!isset($s[$v])) {
					$s[$v] = $y;
				} else {
					$s[$v] = array_merge($s[$v], $y);
				}
			}
			if (count($n)) {
				if (!isset($s[$v]['n'])) {
					$s[$v]['n'] = $n;
				} else {
					$s[$v]['n'] = array_merge($s[$v]['n'], $n);
				}
			}
		}
	}
	return $s;
}

function hl_tag($t)
{
	// tag/attribute handler
	global $C;
	$t = $t[0];
	// invalid < >
	if ($t == '< ') {
		return '&lt; ';
	}
	if ($t == '>') {
		return '&gt;';
	}
	if (!preg_match('`^<(/?)([a-zA-Z][a-zA-Z1-6]*)([^>]*?)\s?>$`m', $t, $m)) {
		return str_replace(array(
			'<',
			'>'
		), array(
			'&lt;',
			'&gt;'
		), $t);
	} elseif (!isset($C['elements'][($e = strtolower($m[2]))])) {
		return (($C['keep_bad'] % 2) ? str_replace(array(
			'<',
			'>'
		), array(
			'&lt;',
			'&gt;'
		), $t) : '');
	}
	// attr string
	$a = str_replace(array(
		"\n",
		"\r",
		"\t"
	), ' ', trim($m[3]));
	// tag transform
	static $eD = array('acronym' => 1, 'applet' => 1, 'big' => 1, 'center' => 1, 'dir' => 1, 'font' => 1, 'isindex' => 1, 's' => 1, 'strike' => 1, 'tt' => 1); // Deprecated
	if ($C['make_tag_strict'] && isset($eD[$e])) {
		$trt = hl_tag2($e, $a, $C['make_tag_strict']);
		if (!$e) {
			return (($C['keep_bad'] % 2) ? str_replace(array(
				'<',
				'>'
			), array(
				'&lt;',
				'&gt;'
			), $t) : '');
		}
	}
	// close tag
	static $eE = array('area' => 1, 'br' => 1, 'col' => 1, 'command' => 1, 'embed' => 1, 'hr' => 1, 'img' => 1, 'input' => 1, 'isindex' => 1, 'keygen' => 1, 'link' => 1, 'meta' => 1, 'param' => 1, 'source' => 1, 'track' => 1, 'wbr' => 1); // Empty ele
	if (!empty($m[1])) {
		return (!isset($eE[$e]) ? (empty($C['hook_tag']) ? "</$e>" : $C['hook_tag']($e)) : (($C['keep_bad']) % 2 ? str_replace(array(
			'<',
			'>'
		), array(
			'&lt;',
			'&gt;'
		), $t) : ''));
	}
	
	// open tag & attr
	static $aN = array('abbr' => array('td' => 1, 'th' => 1), 'accept' => array('form' => 1, 'input' => 1), 'accept-charset' => array('form' => 1), 'action' => array('form' => 1), 'align' => array('applet' => 1, 'caption' => 1, 'col' => 1, 'colgroup' => 1, 'div' => 1, 'embed' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'hr' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'legend' => 1, 'object' => 1, 'p' => 1, 'table' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1), 'allowfullscreen' => array('iframe' => 1), 'alt' => array('applet' => 1, 'area' => 1, 'img' => 1, 'input' => 1), 'archive' => array('applet' => 1, 'object' => 1), 'async' => array('script' => 1), 'autocomplete' => array('form' => 1, 'input' => 1), 'autofocus' => array('button' => 1, 'input' => 1, 'keygen' => 1, 'select' => 1, 'textarea' => 1), 'autoplay' => array('audio' => 1, 'video' => 1), 'axis' => array('td' => 1, 'th' => 1), 'bgcolor' => array('embed' => 1, 'table' => 1, 'td' => 1, 'th' => 1, 'tr' => 1), 'border' => array('img' => 1, 'object' => 1, 'table' => 1), 'bordercolor' => array('table' => 1, 'td' => 1, 'tr' => 1), 'cellpadding' => array('table' => 1), 'cellspacing' => array('table' => 1), 'challenge' => array('keygen' => 1), 'char' => array('col' => 1, 'colgroup' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1), 'charoff' => array('col' => 1, 'colgroup' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1), 'charset' => array('a' => 1, 'script' => 1), 'checked' => array('command' => 1, 'input' => 1), 'cite' => array('blockquote' => 1, 'del' => 1, 'ins' => 1, 'q' => 1), 'classid' => array('object' => 1), 'clear' => array('br' => 1), 'code' => array('applet' => 1), 'codebase' => array('applet' => 1, 'object' => 1), 'codetype' => array('object' => 1), 'color' => array('font' => 1), 'cols' => array('textarea' => 1), 'colspan' => array('td' => 1, 'th' => 1), 'compact' => array('dir' => 1, 'dl' => 1, 'menu' => 1, 'ol' => 1, 'ul' => 1), 'content' => array('meta' => 1), 'controls' => array('audio' => 1, 'video' => 1), 'coords' => array('a' => 1, 'area' => 1), 'crossorigin' => array('img' => 1), 'data' => array('object' => 1), 'datetime' => array('del' => 1, 'ins' => 1, 'time' => 1), 'declare' => array('object' => 1), 'default' => array('track' => 1), 'defer' => array('script' => 1), 'dirname' => array('input' => 1, 'textarea' => 1), 'disabled' => array('button' => 1, 'command' => 1, 'fieldset' => 1, 'input' => 1, 'keygen' => 1, 'optgroup' => 1, 'option' => 1, 'select' => 1, 'textarea' => 1), 'download' => array('a' => 1), 'enctype' => array('form' => 1), 'face' => array('font' => 1), 'flashvars' => array('embed' => 1), 'for' => array('label' => 1, 'output' => 1), 'form' => array('button' => 1, 'fieldset' => 1, 'input' => 1, 'keygen' => 1, 'label' => 1, 'object' => 1, 'output' => 1, 'select' => 1, 'textarea' => 1), 'formaction' => array('button' => 1, 'input' => 1), 'formenctype' => array('button' => 1, 'input' => 1), 'formmethod' => array('button' => 1, 'input' => 1), 'formnovalidate' => array('button' => 1, 'input' => 1), 'formtarget' => array('button' => 1, 'input' => 1), 'frame' => array('table' => 1), 'frameborder' => array('iframe' => 1), 'headers' => array('td' => 1, 'th' => 1), 'height' => array('applet' => 1, 'canvas' => 1, 'embed' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'object' => 1, 'td' => 1, 'th' => 1, 'video' => 1), 'high' => array('meter' => 1), 'href' => array('a' => 1, 'area' => 1, 'link' => 1), 'hreflang' => array('a' => 1, 'area' => 1, 'link' => 1), 'hspace' => array('applet' => 1, 'embed' => 1, 'img' => 1, 'object' => 1), 'icon' => array('command' => 1), 'ismap' => array('img' => 1, 'input' => 1), 'keyparams' => array('keygen' => 1), 'keytype' => array('keygen' => 1), 'kind' => array('track' => 1), 'label' => array('command' => 1, 'menu' => 1, 'option' => 1, 'optgroup' => 1, 'track' => 1), 'language' => array('script' => 1), 'list' => array('input' => 1), 'longdesc' => array('img' => 1, 'iframe' => 1), 'loop' => array('audio' => 1, 'video' => 1), 'low' => array('meter' => 1), 'marginheight' => array('iframe' => 1), 'marginwidth' => array('iframe' => 1), 'max' => array('input' => 1, 'meter' => 1, 'progress' => 1), 'maxlength' => array('input' => 1, 'textarea' => 1), 'media' => array('a' => 1, 'area' => 1, 'link' => 1, 'source' => 1, 'style' => 1), 'mediagroup' => array('audio' => 1, 'video' => 1), 'method' => array('form' => 1), 'min' => array('input' => 1, 'meter' => 1), 'model' => array('embed' => 1), 'multiple' => array('input' => 1, 'select' => 1), 'muted' => array('audio' => 1, 'video' => 1), 'name' => array('a' => 1, 'applet' => 1, 'button' => 1, 'embed' => 1, 'fieldset' => 1, 'form' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'keygen' => 1, 'map' => 1, 'object' => 1, 'output' => 1, 'param' => 1, 'select' => 1, 'textarea' => 1), 'nohref' => array('area' => 1), 'noshade' => array('hr' => 1), 'novalidate' => array('form' => 1), 'nowrap' => array('td' => 1, 'th' => 1), 'object' => array('applet' => 1), 'open' => array('details' => 1), 'optimum' => array('meter' => 1), 'pattern' => array('input' => 1), 'ping' => array('a' => 1, 'area' => 1), 'placeholder' => array('input' => 1, 'textarea' => 1), 'pluginspage' => array('embed' => 1), 'pluginurl' => array('embed' => 1), 'poster' => array('video' => 1), 'pqg' => array('keygen' => 1), 'preload' => array('audio' => 1, 'video' => 1), 'prompt' => array('isindex' => 1), 'pubdate' => array('time' => 1), 'radiogroup' => array('command' => 1), 'readonly' => array('input' => 1, 'textarea' => 1), 'rel' => array('a' => 1, 'area' => 1, 'link' => 1), 'required' => array('input' => 1, 'select' => 1, 'textarea' => 1), 'rev' => array('a' => 1), 'reversed' => array('ol' => 1), 'rows' => array('textarea' => 1), 'rowspan' => array('td' => 1, 'th' => 1), 'rules' => array('table' => 1), 'sandbox' => array('iframe' => 1), 'scope' => array('td' => 1, 'th' => 1), 'scoped' => array('style' => 1), 'scrolling' => array('iframe' => 1), 'seamless' => array('iframe' => 1), 'selected' => array('option' => 1), 'shape' => array('a' => 1, 'area' => 1), 'size' => array('font' => 1, 'hr' => 1, 'input' => 1, 'select' => 1), 'sizes' => array('link' => 1), 'span' => array('col' => 1, 'colgroup' => 1), 'src' => array('audio' => 1, 'embed' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'script' => 1, 'source' => 1, 'track' => 1, 'video' => 1), 'srcdoc' => array('iframe' => 1), 'srclang' => array('track' => 1), 'srcset' => array('img' => 1), 'standby' => array('object' => 1), 'start' => array('ol' => 1), 'step' => array('input' => 1), 'summary' => array('table' => 1), 'target' => array('a' => 1, 'area' => 1, 'form' => 1), 'type' => array('a' => 1, 'area' => 1, 'button' => 1, 'command' => 1, 'embed' => 1, 'input' => 1, 'li' => 1, 'link' => 1, 'menu' => 1, 'object' => 1, 'ol' => 1, 'param' => 1, 'script' => 1, 'source' => 1, 'style' => 1, 'ul' => 1), 'typemustmatch' => array('object' => 1), 'usemap' => array('img' => 1, 'input' => 1, 'object' => 1), 'valign' => array('col' => 1, 'colgroup' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1), 'value' => array('button' => 1, 'data' => 1, 'input' => 1, 'li' => 1, 'meter' => 1, 'option' => 1, 'param' => 1, 'progress' => 1), 'valuetype' => array('param' => 1), 'vspace' => array('applet' => 1, 'embed' => 1, 'img' => 1, 'object' => 1), 'width' => array('applet' => 1, 'canvas' => 1, 'col' => 1, 'colgroup' => 1, 'embed' => 1, 'hr' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'object' => 1, 'pre' => 1, 'table' => 1, 'td' => 1, 'th' => 1, 'video' => 1), 'wmode' => array('embed' => 1), 'wrap' => array('textarea' => 1)); // Ele-specific
	static $aNA = array('aria-activedescendant' => 1, 'aria-atomic' => 1, 'aria-autocomplete' => 1, 'aria-busy' => 1, 'aria-checked' => 1, 'aria-controls' => 1, 'aria-describedby' => 1, 'aria-disabled' => 1, 'aria-dropeffect' => 1, 'aria-expanded' => 1, 'aria-flowto' => 1, 'aria-grabbed' => 1, 'aria-haspopup' => 1, 'aria-hidden' => 1, 'aria-invalid' => 1, 'aria-label' => 1, 'aria-labelledby' => 1, 'aria-level' => 1, 'aria-live' => 1, 'aria-multiline' => 1, 'aria-multiselectable' => 1, 'aria-orientation' => 1, 'aria-owns' => 1, 'aria-posinset' => 1, 'aria-pressed' => 1, 'aria-readonly' => 1, 'aria-relevant' => 1, 'aria-required' => 1, 'aria-selected' => 1, 'aria-setsize' => 1, 'aria-sort' => 1, 'aria-valuemax' => 1, 'aria-valuemin' => 1, 'aria-valuenow' => 1, 'aria-valuetext' => 1); // ARIA
	static $aNE = array('allowfullscreen' => 1, 'checkbox' => 1, 'checked' => 1, 'command' => 1, 'compact' => 1, 'declare' => 1, 'defer' => 1, 'default' => 1, 'disabled' => 1, 'hidden' => 1, 'inert' => 1, 'ismap' => 1, 'itemscope' => 1, 'multiple' => 1, 'nohref' => 1, 'noresize' => 1, 'noshade' => 1, 'nowrap' => 1, 'open' => 1, 'radio' => 1, 'readonly' => 1, 'required' => 1, 'reversed' => 1, 'selected' => 1); // Empty
	static $aNO = array('onabort' => 1, 'onblur' => 1, 'oncanplay' => 1, 'oncanplaythrough' => 1, 'onchange' => 1, 'onclick' => 1, 'oncontextmenu' => 1, 'oncopy' => 1, 'oncuechange' => 1, 'oncut' => 1, 'ondblclick' => 1, 'ondrag' => 1, 'ondragend' => 1, 'ondragenter' => 1, 'ondragleave' => 1, 'ondragover' => 1, 'ondragstart' => 1, 'ondrop' => 1, 'ondurationchange' => 1, 'onemptied' => 1, 'onended' => 1, 'onerror' => 1, 'onfocus' => 1, 'onformchange' => 1, 'onforminput' => 1, 'oninput' => 1, 'oninvalid' => 1, 'onkeydown' => 1, 'onkeypress' => 1, 'onkeyup' => 1, 'onload' => 1, 'onloadeddata' => 1, 'onloadedmetadata' => 1, 'onloadstart' => 1, 'onlostpointercapture' => 1, 'onmousedown' => 1, 'onmousemove' => 1, 'onmouseout' => 1, 'onmouseover' => 1, 'onmouseup' => 1, 'onmousewheel' => 1, 'onpaste' => 1, 'onpause' => 1, 'onplay' => 1, 'onplaying' => 1, 'onpointercancel' => 1, 'ongotpointercapture' => 1, 'onpointerdown' => 1, 'onpointerenter' => 1, 'onpointerleave' => 1, 'onpointermove' => 1, 'onpointerout' => 1, 'onpointerover' => 1, 'onpointerup' => 1, 'onprogress' => 1, 'onratechange' => 1, 'onreadystatechange' => 1, 'onreset' => 1, 'onsearch' => 1, 'onscroll' => 1, 'onseeked' => 1, 'onseeking' => 1, 'onselect' => 1, 'onshow' => 1, 'onstalled' => 1, 'onsubmit' => 1, 'onsuspend' => 1, 'ontimeupdate' => 1, 'ontoggle' => 1, 'ontouchcancel' => 1, 'ontouchend' => 1, 'ontouchmove' => 1, 'ontouchstart' => 1, 'onvolumechange' => 1, 'onwaiting' => 1, 'onwheel' => 1); // Event
	static $aNP = array('action' => 1, 'cite' => 1, 'classid' => 1, 'codebase' => 1, 'data' => 1, 'href' => 1, 'itemtype' => 1, 'longdesc' => 1, 'model' => 1, 'pluginspage' => 1, 'pluginurl' => 1, 'src' => 1, 'srcset' => 1, 'usemap' => 1); // Need scheme check; excludes style, on*
	static $aNU = array('accesskey' => 1, 'class' => 1, 'contenteditable' => 1, 'contextmenu' => 1, 'dir' => 1, 'draggable' => 1, 'dropzone' => 1, 'hidden' => 1, 'id' => 1, 'inert' => 1, 'itemid' => 1, 'itemprop' => 1, 'itemref' => 1, 'itemscope' => 1, 'itemtype' => 1, 'lang' => 1, 'role' => 1, 'spellcheck' => 1, 'style' => 1, 'tabindex' => 1, 'title' => 1, 'translate' => 1, 'xmlns' => 1, 'xml:base' => 1, 'xml:lang' => 1, 'xml:space' => 1); // Univ; excludes on*, aria*
	
	if ($C['lc_std_val']) {
		// predef attr vals for $eAL & $aNE ele
		static $aNL = array('all' => 1, 'auto' => 1, 'baseline' => 1, 'bottom' => 1, 'button' => 1, 'captions' => 1, 'center' => 1, 'chapters' => 1, 'char' => 1, 'checkbox' => 1, 'circle' => 1, 'col' => 1, 'colgroup' => 1, 'color' => 1, 'cols' => 1, 'data' => 1, 'date' => 1, 'datetime' => 1, 'datetime-local' => 1, 'default' => 1, 'descriptions' => 1, 'email' => 1, 'file' => 1, 'get' => 1, 'groups' => 1, 'hidden' => 1, 'image' => 1, 'justify' => 1, 'left' => 1, 'ltr' => 1, 'metadata' => 1, 'middle' => 1, 'month' => 1, 'none' => 1, 'number' => 1, 'object' => 1, 'password' => 1, 'poly' => 1, 'post' => 1, 'preserve' => 1, 'radio' => 1, 'range' => 1, 'rect' => 1, 'ref' => 1, 'reset' => 1, 'right' => 1, 'row' => 1, 'rowgroup' => 1, 'rows' => 1, 'rtl' => 1, 'search' => 1, 'submit' => 1, 'subtitles' => 1, 'tel' => 1, 'text' => 1, 'time' => 1, 'top' => 1, 'url' => 1, 'week' => 1);
		static $eAL = array('a' => 1, 'area' => 1, 'bdo' => 1, 'button' => 1, 'col' => 1, 'fieldset' => 1, 'form' => 1, 'img' => 1, 'input' => 1, 'object' => 1, 'ol' => 1, 'optgroup' => 1, 'option' => 1, 'param' => 1, 'script' => 1, 'select' => 1, 'table' => 1, 'td' => 1, 'textarea' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1, 'track' => 1, 'xml:space' => 1);
		$lcase = isset($eAL[$e]) ? 1 : 0;
	}
	
	$depTr = 0;
	if ($C['no_deprecated_attr']) {
		// depr attr:applicable ele
		static $aND = array('align' => array('caption' => 1, 'div' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'hr' => 1, 'img' => 1, 'input' => 1, 'legend' => 1, 'object' => 1, 'p' => 1, 'table' => 1), 'bgcolor' => array('table' => 1, 'td' => 1, 'th' => 1, 'tr' => 1), 'border' => array('object' => 1), 'bordercolor' => array('table' => 1, 'td' => 1, 'tr' => 1), 'cellspacing' => array('table' => 1), 'clear' => array('br' => 1), 'compact' => array('dl' => 1, 'ol' => 1, 'ul' => 1), 'height' => array('td' => 1, 'th' => 1), 'hspace' => array('img' => 1, 'object' => 1), 'language' => array('script' => 1), 'name' => array('a' => 1, 'form' => 1, 'iframe' => 1, 'img' => 1, 'map' => 1), 'noshade' => array('hr' => 1), 'nowrap' => array('td' => 1, 'th' => 1), 'size' => array('hr' => 1), 'vspace' => array('img' => 1, 'object' => 1), 'width' => array('hr' => 1, 'pre' => 1, 'table' => 1, 'td' => 1, 'th' => 1));
		static $eAD = array('a' => 1, 'br' => 1, 'caption' => 1, 'div' => 1, 'dl' => 1, 'form' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'hr' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'legend' => 1, 'map' => 1, 'object' => 1, 'ol' => 1, 'p' => 1, 'pre' => 1, 'script' => 1, 'table' => 1, 'td' => 1, 'th' => 1, 'tr' => 1, 'ul' => 1);
		$depTr = isset($eAD[$e]) ? 1 : 0;
	}
	
	// attr name-vals
	if (strpos($a, "\x01") !== false) {
		$a = preg_replace('`\x01[^\x01]*\x01`', '', $a);
	} // No comment/CDATA sec
	$mode = 0;
	$a    = trim($a, ' /');
	$aA   = array();
	while (strlen($a)) {
		$w = 0;
		switch ($mode) {
			case 0: // Name
				if (preg_match('`^[a-zA-Z][^\s=/]+`', $a, $m)) {
					$nm = strtolower($m[0]);
					$w  = $mode = 1;
					$a  = ltrim(substr_replace($a, '', 0, strlen($m[0])));
				}
				break;
			case 1:
				if ($a[0] == '=') { // =
					$w    = 1;
					$mode = 2;
					$a    = ltrim($a, '= ');
				} else { // No val
					$w       = 1;
					$mode    = 0;
					$a       = ltrim($a);
					$aA[$nm] = '';
				}
				break;
			case 2: // Val
				if (preg_match('`^((?:"[^"]*")|(?:\'[^\']*\')|(?:\s*[^\s"\']+))(.*)`', $a, $m)) {
					$a       = ltrim($m[2]);
					$m       = $m[1];
					$w       = 1;
					$mode    = 0;
					$aA[$nm] = trim(str_replace('<', '&lt;', ($m[0] == '"' or $m[0] == '\'') ? substr($m, 1, -1) : $m));
				}
				break;
		}
		if ($w == 0) { // Parse errs, deal with space, " & '
			$a    = preg_replace('`^(?:"[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*`', '', $a);
			$mode = 0;
		}
	}
	if ($mode == 1) {
		$aA[$nm] = '';
	}
	
	// clean attrs
	global $S;
	$rl  = isset($S[$e]) ? $S[$e] : array();
	$a   = array();
	$nfr = 0;
	$d   = $C['deny_attribute'];
	foreach ($aA as $k => $v) {
		if (((isset($d['*']) ? isset($d[$k]) : !isset($d[$k])) && (isset($aN[$k][$e]) or isset($aNU[$k]) or (isset($aNO[$k]) && !isset($d['on*'])) or (isset($aNA[$k]) && !isset($d['aria*'])) or (!isset($d['data*']) && preg_match('`data-((?!xml)[^:]+$)`', $k))) && !isset($rl['n'][$k]) && !isset($rl['n']['*'])) or isset($rl[$k])) {
			if (isset($aNE[$k])) {
				$v = $k;
			} elseif (!empty($lcase) && (($e != 'button' or $e != 'input') or $k == 'type')) { // Rather loose but ?not cause issues
				$v = (isset($aNL[($v2 = strtolower($v))])) ? $v2 : $v;
			}
			if ($k == 'style' && !$C['style_pass']) {
				if (false !== strpos($v, '&#')) {
					static $sC = array('&#x20;' => ' ', '&#32;' => ' ', '&#x45;' => 'e', '&#69;' => 'e', '&#x65;' => 'e', '&#101;' => 'e', '&#x58;' => 'x', '&#88;' => 'x', '&#x78;' => 'x', '&#120;' => 'x', '&#x50;' => 'p', '&#80;' => 'p', '&#x70;' => 'p', '&#112;' => 'p', '&#x53;' => 's', '&#83;' => 's', '&#x73;' => 's', '&#115;' => 's', '&#x49;' => 'i', '&#73;' => 'i', '&#x69;' => 'i', '&#105;' => 'i', '&#x4f;' => 'o', '&#79;' => 'o', '&#x6f;' => 'o', '&#111;' => 'o', '&#x4e;' => 'n', '&#78;' => 'n', '&#x6e;' => 'n', '&#110;' => 'n', '&#x55;' => 'u', '&#85;' => 'u', '&#x75;' => 'u', '&#117;' => 'u', '&#x52;' => 'r', '&#82;' => 'r', '&#x72;' => 'r', '&#114;' => 'r', '&#x4c;' => 'l', '&#76;' => 'l', '&#x6c;' => 'l', '&#108;' => 'l', '&#x28;' => '(', '&#40;' => '(', '&#x29;' => ')', '&#41;' => ')', '&#x20;' => ':', '&#32;' => ':', '&#x22;' => '"', '&#34;' => '"', '&#x27;' => "'", '&#39;' => "'", '&#x2f;' => '/', '&#47;' => '/', '&#x2a;' => '*', '&#42;' => '*', '&#x5c;' => '\\', '&#92;' => '\\');
					$v = strtr($v, $sC);
				}
				$v = preg_replace_callback('`(url(?:\()(?: )*(?:\'|"|&(?:quot|apos);)?)(.+?)((?:\'|"|&(?:quot|apos);)?(?: )*(?:\)))`iS', 'hl_prot', $v);
				$v = !$C['css_expression'] ? preg_replace('`expression`i', ' ', preg_replace('`\\\\\S|(/|(%2f))(\*|(%2a))`i', ' ', $v)) : $v;
			} elseif (isset($aNP[$k]) or isset($aNO[$k])) {
				$v = str_replace("­", ' ', (strpos($v, '&') !== false ? str_replace(array(
					'&#xad;',
					'&#173;',
					'&shy;'
				), ' ', $v) : $v)); # double-quoted char: soft-hyphen; appears here as "­" or hyphen or something else depending on viewing software
				if ($k == 'srcset') {
					$v2 = '';
					foreach (explode(',', $v) as $k1 => $v1) {
						$v1 = explode(' ', ltrim($v1), 2);
						$k1 = isset($v1[1]) ? trim($v1[1]) : '';
						$v1 = trim($v1[0]);
						if (isset($v1[0])) {
							$v2 .= hl_prot($v1, $k) . (empty($k1) ? '' : ' ' . $k1) . ', ';
						}
					}
					$v = trim($v2, ', ');
				}
				if ($k == 'itemtype') {
					$v2 = '';
					foreach (explode(' ', $v) as $v1) {
						if (isset($v1[0])) {
							$v2 .= hl_prot($v1, $k) . ' ';
						}
					}
					$v = trim($v2, ' ');
				} else {
					$v = hl_prot($v, $k);
				}
				if ($k == 'href') { // X-spam
					if ($C['anti_mail_spam'] && strpos($v, 'mailto:') === 0) {
						$v = str_replace('@', htmlspecialchars($C['anti_mail_spam']), $v);
					} elseif ($C['anti_link_spam']) {
						$r1 = $C['anti_link_spam'][1];
						if (!empty($r1) && preg_match($r1, $v)) {
							continue;
						}
						$r0 = $C['anti_link_spam'][0];
						if (!empty($r0) && preg_match($r0, $v)) {
							if (isset($a['rel'])) {
								if (!preg_match('`\bnofollow\b`i', $a['rel'])) {
									$a['rel'] .= ' nofollow';
								}
							} elseif (isset($aA['rel'])) {
								if (!preg_match('`\bnofollow\b`i', $aA['rel'])) {
									$nfr = 1;
								}
							} else {
								$a['rel'] = 'nofollow';
							}
						}
					}
				}
			}
			if (isset($rl[$k]) && is_array($rl[$k]) && ($v = hl_attrval($k, $v, $rl[$k])) === 0) {
				continue;
			}
			$a[$k] = str_replace('"', '&quot;', $v);
		}
	}
	if ($nfr) {
		$a['rel'] = isset($a['rel']) ? $a['rel'] . ' nofollow' : 'nofollow';
	}
	
	// rqd attr
	static $eAR = array('area' => array('alt' => 'area'), 'bdo' => array('dir' => 'ltr'), 'command' => array('label' => ''), 'form' => array('action' => ''), 'img' => array('src' => '', 'alt' => 'image'), 'map' => array('name' => ''), 'optgroup' => array('label' => ''), 'param' => array('name' => ''), 'style' => array('scoped' => ''), 'textarea' => array('rows' => '10', 'cols' => '50'));
	if (isset($eAR[$e])) {
		foreach ($eAR[$e] as $k => $v) {
			if (!isset($a[$k])) {
				$a[$k] = isset($v[0]) ? $v : $k;
			}
		}
	}
	
	// depr attr
	if ($depTr) {
		$c = array();
		foreach ($a as $k => $v) {
			if ($k == 'style' or !isset($aND[$k][$e])) {
				continue;
			}
			$v = str_replace(array(
				'\\',
				':',
				';',
				'&#'
			), '', $v);
			if ($k == 'align') {
				unset($a['align']);
				if ($e == 'img' && ($v == 'left' or $v == 'right')) {
					$c[] = 'float: ' . $v;
				} elseif (($e == 'div' or $e == 'table') && $v == 'center') {
					$c[] = 'margin: auto';
				} else {
					$c[] = 'text-align: ' . $v;
				}
			} elseif ($k == 'bgcolor') {
				unset($a['bgcolor']);
				$c[] = 'background-color: ' . $v;
			} elseif ($k == 'border') {
				unset($a['border']);
				$c[] = "border: {$v}px";
			} elseif ($k == 'bordercolor') {
				unset($a['bordercolor']);
				$c[] = 'border-color: ' . $v;
			} elseif ($k == 'cellspacing') {
				unset($a['cellspacing']);
				$c[] = "border-spacing: {$v}px";
			} elseif ($k == 'clear') {
				unset($a['clear']);
				$c[] = 'clear: ' . ($v != 'all' ? $v : 'both');
			} elseif ($k == 'compact') {
				unset($a['compact']);
				$c[] = 'font-size: 85%';
			} elseif ($k == 'height' or $k == 'width') {
				unset($a[$k]);
				$c[] = $k . ': ' . ($v[0] != '*' ? $v . (ctype_digit($v) ? 'px' : '') : 'auto');
			} elseif ($k == 'hspace') {
				unset($a['hspace']);
				$c[] = "margin-left: {$v}px; margin-right: {$v}px";
			} elseif ($k == 'language' && !isset($a['type'])) {
				unset($a['language']);
				$a['type'] = 'text/' . strtolower($v);
			} elseif ($k == 'name') {
				if ($C['no_deprecated_attr'] == 2 or ($e != 'a' && $e != 'map')) {
					unset($a['name']);
				}
				if (!isset($a['id']) && !preg_match('`\W`', $v)) {
					$a['id'] = $v;
				}
			} elseif ($k == 'noshade') {
				unset($a['noshade']);
				$c[] = 'border-style: none; border: 0; background-color: gray; color: gray';
			} elseif ($k == 'nowrap') {
				unset($a['nowrap']);
				$c[] = 'white-space: nowrap';
			} elseif ($k == 'size') {
				unset($a['size']);
				$c[] = 'size: ' . $v . 'px';
			} elseif ($k == 'vspace') {
				unset($a['vspace']);
				$c[] = "margin-top: {$v}px; margin-bottom: {$v}px";
			}
		}
		if (count($c)) {
			$c          = implode('; ', $c);
			$a['style'] = isset($a['style']) ? rtrim($a['style'], ' ;') . '; ' . $c . ';' : $c . ';';
		}
	}
	// unique ID
	if ($C['unique_ids'] && isset($a['id'])) {
		if (preg_match('`\s`', ($id = $a['id'])) or (isset($GLOBALS['hl_Ids'][$id]) && $C['unique_ids'] == 1)) {
			unset($a['id']);
		} else {
			while (isset($GLOBALS['hl_Ids'][$id])) {
				$id = $C['unique_ids'] . $id;
			}
			$GLOBALS['hl_Ids'][($a['id'] = $id)] = 1;
		}
	}
	// xml:lang
	if ($C['xml:lang'] && isset($a['lang'])) {
		$a['xml:lang'] = isset($a['xml:lang']) ? $a['xml:lang'] : $a['lang'];
		if ($C['xml:lang'] == 2) {
			unset($a['lang']);
		}
	}
	// for transformed tag
	if (!empty($trt)) {
		$a['style'] = isset($a['style']) ? rtrim($a['style'], ' ;') . '; ' . $trt : $trt;
	}
	// return with empty ele /
	if (empty($C['hook_tag'])) {
		$aA = '';
		foreach ($a as $k => $v) {
			$aA .= " {$k}=\"{$v}\"";
		}
		return "<{$e}{$aA}" . (isset($eE[$e]) ? ' /' : '') . '>';
	} else {
		return $C['hook_tag']($e, $a);
	}
}

function hl_tag2(&$e, &$a, $t = 1)
{
	// transform tag
	if ($e == 'big') {
		$e = 'span';
		return 'font-size: larger;';
	}
	if ($e == 's' or $e == 'strike') {
		$e = 'span';
		return 'text-decoration: line-through;';
	}
	if ($e == 'tt') {
		$e = 'code';
		return '';
	}
	if ($e == 'center') {
		$e = 'div';
		return 'text-align: center;';
	}
	static $fs = array('0' => 'xx-small', '1' => 'xx-small', '2' => 'small', '3' => 'medium', '4' => 'large', '5' => 'x-large', '6' => 'xx-large', '7' => '300%', '-1' => 'smaller', '-2' => '60%', '+1' => 'larger', '+2' => '150%', '+3' => '200%', '+4' => '300%');
	if ($e == 'font') {
		$a2 = '';
		while (preg_match('`(^|\s)(color|size)\s*=\s*(\'|")?(.+?)(\\3|\s|$)`i', $a, $m)) {
			$a = str_replace($m[0], ' ', $a);
			$a2 .= strtolower($m[2]) == 'color' ? (' color: ' . str_replace('"', '\'', trim($m[4])) . ';') : (isset($fs[($m = trim($m[4]))]) ? ($a2 .= ' font-size: ' . str_replace('"', '\'', $fs[$m]) . ';') : '');
		}
		while (preg_match('`(^|\s)face\s*=\s*(\'|")?([^=]+?)\\2`i', $a, $m) or preg_match('`(^|\s)face\s*=(\s*)(\S+)`i', $a, $m)) {
			$a = str_replace($m[0], ' ', $a);
			$a2 .= ' font-family: ' . str_replace('"', '\'', trim($m[3])) . ';';
		}
		$e = 'span';
		return ltrim(str_replace('<', '', $a2));
	}
	if ($e == 'acronym') {
		$e = 'abbr';
		return '';
	}
	if ($e == 'dir') {
		$e = 'ul';
		return '';
	}
	if ($t == 2) {
		$e = 0;
		return 0;
	}
	return '';
}

function hl_tidy($t, $w, $p)
{
	// tidy/compact HTM
	if (strpos(' pre,script,textarea', "$p,")) {
		return $t;
	}
	if (!function_exists('hl_aux2')) {
		function hl_aux2($m)
		{
			return $m[1] . str_replace(array(
				"<",
				">",
				"\n",
				"\r",
				"\t",
				' '
			), array(
				"\x01",
				"\x02",
				"\x03",
				"\x04",
				"\x05",
				"\x07"
			), $m[3]) . $m[4];
		}
	}
	$t = preg_replace(array(
		'`(<\w[^>]*(?<!/)>)\s+`',
		'`\s+`',
		'`(<\w[^>]*(?<!/)>) `'
	), array(
		' $1',
		' ',
		'$1'
	), preg_replace_callback(array(
		'`(<(!\[CDATA\[))(.+?)(\]\]>)`sm',
		'`(<(!--))(.+?)(-->)`sm',
		'`(<(pre|script|textarea)[^>]*?>)(.+?)(</\2>)`sm'
	), 'hl_aux2', $t));
	if (($w = strtolower($w)) == -1) {
		return str_replace(array(
			"\x01",
			"\x02",
			"\x03",
			"\x04",
			"\x05",
			"\x07"
		), array(
			'<',
			'>',
			"\n",
			"\r",
			"\t",
			' '
		), $t);
	}
	$s = strpos(" $w", 't') ? "\t" : ' ';
	$s = preg_match('`\d`', $w, $m) ? str_repeat($s, $m[0]) : str_repeat($s, ($s == "\t" ? 1 : 2));
	$N = preg_match('`[ts]([1-9])`', $w, $m) ? $m[1] : 0;
	$a = array(
		'br' => 1
	);
	$b = array(
		'button' => 1,
		'command' => 1,
		'input' => 1,
		'option' => 1,
		'param' => 1,
		'track' => 1
	);
	$c = array(
		'audio' => 1,
		'canvas' => 1,
		'caption' => 1,
		'dd' => 1,
		'dt' => 1,
		'figcaption' => 1,
		'h1' => 1,
		'h2' => 1,
		'h3' => 1,
		'h4' => 1,
		'h5' => 1,
		'h6' => 1,
		'isindex' => 1,
		'label' => 1,
		'legend' => 1,
		'li' => 1,
		'object' => 1,
		'p' => 1,
		'pre' => 1,
		'style' => 1,
		'summary' => 1,
		'td' => 1,
		'textarea' => 1,
		'th' => 1,
		'video' => 1
	);
	$d = array(
		'address' => 1,
		'article' => 1,
		'aside' => 1,
		'blockquote' => 1,
		'center' => 1,
		'colgroup' => 1,
		'datalist' => 1,
		'details' => 1,
		'dir' => 1,
		'div' => 1,
		'dl' => 1,
		'fieldset' => 1,
		'figure' => 1,
		'footer' => 1,
		'form' => 1,
		'header' => 1,
		'hgroup' => 1,
		'hr' => 1,
		'iframe' => 1,
		'main' => 1,
		'map' => 1,
		'menu' => 1,
		'nav' => 1,
		'noscript' => 1,
		'ol' => 1,
		'optgroup' => 1,
		'rbc' => 1,
		'rtc' => 1,
		'ruby' => 1,
		'script' => 1,
		'section' => 1,
		'select' => 1,
		'table' => 1,
		'tbody' => 1,
		'tfoot' => 1,
		'thead' => 1,
		'tr' => 1,
		'ul' => 1
	);
	$T = explode('<', $t);
	$X = 1;
	while ($X) {
		$n = $N;
		$t = $T;
		ob_start();
		if (isset($d[$p])) {
			echo str_repeat($s, ++$n);
		}
		echo ltrim(array_shift($t));
		for ($i = -1, $j = count($t); ++$i < $j;) {
			$r = '';
			list($e, $r) = explode('>', $t[$i]);
			$x = $e[0] == '/' ? 0 : (substr($e, -1) == '/' ? 1 : ($e[0] != '!' ? 2 : -1));
			$y = !$x ? ltrim($e, '/') : ($x > 0 ? substr($e, 0, strcspn($e, ' ')) : 0);
			$e = "<$e>";
			if (isset($d[$y])) {
				if (!$x) {
					if ($n) {
						echo "\n", str_repeat($s, --$n), "$e\n", str_repeat($s, $n);
					} else {
						++$N;
						ob_end_clean();
						continue 2;
					}
				} else {
					echo "\n", str_repeat($s, $n), "$e\n", str_repeat($s, ($x != 1 ? ++$n : $n));
				}
				echo $r;
				continue;
			}
			$f = "\n" . str_repeat($s, $n);
			if (isset($c[$y])) {
				if (!$x) {
					echo $e, $f, $r;
				} else {
					echo $f, $e, $r;
				}
			} elseif (isset($b[$y])) {
				echo $f, $e, $r;
			} elseif (isset($a[$y])) {
				echo $e, $f, $r;
			} elseif (!$y) {
				echo $f, $e, $f, $r;
			} else {
				echo $e, $r;
			}
		}
		$X = 0;
	}
	$t = str_replace(array(
		"\n ",
		" \n"
	), "\n", preg_replace('`[\n]\s*?[\n]+`', "\n", ob_get_contents()));
	ob_end_clean();
	if (($l = strpos(" $w", 'r') ? (strpos(" $w", 'n') ? "\r\n" : "\r") : 0)) {
		$t = str_replace("\n", $l, $t);
	}
	return str_replace(array(
		"\x01",
		"\x02",
		"\x03",
		"\x04",
		"\x05",
		"\x07"
	), array(
		'<',
		'>',
		"\n",
		"\r",
		"\t",
		' '
	), $t);
}

function hl_version()
{
	// version
	return '1.2.4.1';
}
