diff --git a/include/admin/Layout/Available.php b/include/admin/Layout/Available.php index d4f011b..4e70268 100644 --- a/include/admin/Layout/Available.php +++ b/include/admin/Layout/Available.php @@ -463,6 +463,12 @@ class Available extends \gp\admin\Layout{ 'cmd=newlayout&theme=' . rawurlencode($theme), ['data-cmd' => 'gpabox', 'class' => 'add_layout'] ); + + echo \gp\tool::Link( + 'Admin_Theme_Content/Available', + '« ' . $langmessage['message'] . ': Wait up to a minute' + ); + echo ''; echo '
'; diff --git a/include/thirdparty/HTMLawed/LICENSE-GPL2 b/include/thirdparty/HTMLawed/LICENSE-GPL2 new file mode 100644 index 0000000..d159169 --- /dev/null +++ b/include/thirdparty/HTMLawed/LICENSE-GPL2 @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. 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If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/include/thirdparty/HTMLawed/LICENSE-LGPL3 b/include/thirdparty/HTMLawed/LICENSE-LGPL3 new file mode 100644 index 0000000..65c5ca8 --- /dev/null +++ b/include/thirdparty/HTMLawed/LICENSE-LGPL3 @@ -0,0 +1,165 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + + This version of the GNU Lesser General Public License incorporates +the terms and conditions of version 3 of the GNU General Public +License, supplemented by the additional permissions listed below. + + 0. Additional Definitions. + + As used herein, "this License" refers to version 3 of the GNU Lesser +General Public License, and the "GNU GPL" refers to version 3 of the GNU +General Public License. + + "The Library" refers to a covered work governed by this License, +other than an Application or a Combined Work as defined below. + + An "Application" is any work that makes use of an interface provided +by the Library, but which is not otherwise based on the Library. +Defining a subclass of a class defined by the Library is deemed a mode +of using an interface provided by the Library. + + A "Combined Work" is a work produced by combining or linking an +Application with the Library. The particular version of the Library +with which the Combined Work was made is also called the "Linked +Version". + + The "Minimal Corresponding Source" for a Combined Work means the +Corresponding Source for the Combined Work, excluding any source code +for portions of the Combined Work that, considered in isolation, are +based on the Application, and not on the Linked Version. + + The "Corresponding Application Code" for a Combined Work means the +object code and/or source code for the Application, including any data +and utility programs needed for reproducing the Combined Work from the +Application, but excluding the System Libraries of the Combined Work. + + 1. Exception to Section 3 of the GNU GPL. + + You may convey a covered work under sections 3 and 4 of this License +without being bound by section 3 of the GNU GPL. + + 2. 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Combined Libraries. + + You may place library facilities that are a work based on the +Library side by side in a single library together with other library +facilities that are not Applications and are not covered by this +License, and convey such a combined library under terms of your +choice, if you do both of the following: + + a) Accompany the combined library with a copy of the same work based + on the Library, uncombined with any other library facilities, + conveyed under the terms of this License. + + b) Give prominent notice with the combined library that part of it + is a work based on the Library, and explaining where to find the + accompanying uncombined form of the same work. + + 6. Revised Versions of the GNU Lesser General Public License. + + The Free Software Foundation may publish revised and/or new versions +of the GNU Lesser General Public License from time to time. Such new +versions will be similar in spirit to the present version, but may +differ in detail to address new problems or concerns. + + Each version is given a distinguishing version number. If the +Library as you received it specifies that a certain numbered version +of the GNU Lesser General Public License "or any later version" +applies to it, you have the option of following the terms and +conditions either of that published version or of any later version +published by the Free Software Foundation. If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. diff --git a/include/thirdparty/HTMLawed/README.md b/include/thirdparty/HTMLawed/README.md new file mode 100644 index 0000000..aac63d7 --- /dev/null +++ b/include/thirdparty/HTMLawed/README.md @@ -0,0 +1,30 @@ +HTMLawed is ... +=============== + +... a single-file, 45 kb PHP script that makes input text more secure, HTML standards-compliant, and +suitable in general from the viewpoint of a web-page administrator, for use in the body of HTML, XHTML +or XML documents. A simple HTMLTidy alternative, the htmLawed filter, processor, purifier, sanitizer, +beautifier, etc., is highly customizable. + +It ensures that HTML tags are balanced and properly nested tags, neutralizes code that may be used +for cross-site scripting (XSS) attacks, limits allowed HTML elements, attributes, or URL protocols, +tidies the code, and so forth. + +As such is may serve as an alternative to [HTMLtidy](http://en.wikipedia.org/wiki/HTML_Tidy) in a +sanitation context. + + +This repository is ... +====================== + +... a derivative, which closely tracks [the original](http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/) + +https://github.com/kesar/HTMLawed + +Links +===== + +* The Original: http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/ +* The SF site where the official Original Releases are available (no cvs/svn/... repository there, though, just releases): http://sourceforge.net/projects/htmlawed/ +* HTMLawed against RSnake's XSS attack vectors: http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/rsnake/RSnakeXSSTest.htm + diff --git a/include/thirdparty/HTMLawed/htmLawed.php b/include/thirdparty/HTMLawed/htmLawed.php new file mode 100644 index 0000000..8cfaad6 --- /dev/null +++ b/include/thirdparty/HTMLawed/htmLawed.php @@ -0,0 +1,1583 @@ + + * @copyright (c) 2007-, Santosh Patnaik + * @dependency None + * @license LGPL 3 and GPL 2+ dual license + * @link https://bioinformatics.org/phplabware/internal_utilities/htmLawed + * @package htmLawed + * @php >=4.4 + * @time 2023-08-04 + * @version 1.2.15 + */ + +/* + * Main function. + * Calls all other functions (alphabetically ordered further below). + * + * @param string $t HTM. + * @param mixed $C $config configuration option. + * @param mixed $S $spec specification option. + * @return string Filtered/sanitized $t. + */ +function htmLawed($t, $C=1, $S=array()) +{ + // Standard elements including deprecated. + + $eleAr = 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, 'dialog'=>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, 'picture'=>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, 'slot'=>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, 'template'=>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); + + // Set $C array ($config), using default parameters as needed. + + $C = is_array($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']) ? $C['xml:lang'] : 2; + } + + // -- Configure for elements. + + if (!empty($C['safe'])) { + unset($eleAr['applet'], $eleAr['audio'], $eleAr['canvas'], $eleAr['dialog'], $eleAr['embed'], $eleAr['iframe'], $eleAr['object'], $eleAr['script'], $eleAr['video']); + } + $x = !empty($C['elements']) ? str_replace(array("\n", "\r", "\t", ' '), '', strtolower($C['elements'])) : '*'; + if ($x == '-*') { + $eleAr = array(); + } elseif (strpos($x, '*') === false) { + $eleAr = array_flip(explode(',', $x)); + } else { + if (isset($x[1])) { + if (strpos($x, '(')) { // Temporarily replace hyphen of custom element, minus being special character + $x = + preg_replace_callback( + '`\([^()]+\)`', + function ($m) { + return str_replace(array('(', ')', '-'), array('', '', 'A'), $m[0]); + }, + $x); + } + preg_match_all('`(?:^|-|\+)[^\-+]+?(?=-|\+|$)`', $x, $m, PREG_SET_ORDER); + for ($i=count($m); --$i>=0;) { + $m[$i] = $m[$i][0]; + } + foreach ($m as $v) { + $v = str_replace('A', '-', $v); + if ($v[0] == '+') { + $eleAr[substr($v, 1)] = 1; + } elseif ($v[0] == '-') { + if (strpos($v, '-', 1)) { + $eleAr[$v] = 1; + } elseif (isset($eleAr[($v = substr($v, 1))]) && !in_array('+'. $v, $m)) { + unset($eleAr[$v]); + } + } + } + } + } + $C['elements'] =& $eleAr; + + // -- Configure for attributes. + + $x = !empty($C['deny_attribute']) ? strtolower(preg_replace('"\s+-"', '/', trim($C['deny_attribute']))) : ''; + $x = str_replace(array(' ', "\t", "\r", "\n"), '', $x); + $x = + array_flip( + (isset($x[0]) && $x[0] == '*') + ? preg_replace( + '`^[^*]`', + '-'. '\\0', + explode( + '/', + (!empty($C['safe']) ? preg_replace('`/on[^/]+`', '', $x) : $x))) + : array_filter(explode(',', $x. (!empty($C['safe']) ? ',on*' : '')))); + $C['deny_attribute'] = $x; + + // -- Configure URL handling. + + $x = (isset($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, ws, wss' + . (empty($C['safe']) + ? ', app, javascript; *: data, javascript, ' + : '; *:') + . 'file, http, https, ws, wss')); + $C['schemes'] = array(); + foreach (explode(';', trim(str_replace(array(' ', "\t", "\r", "\n"), '', $x), ';')) as $v) { + if(strpos($v, ':')) { + list($x, $y) = explode(':', $v, 2); + $C['schemes'][$x] = array_flip(explode(',', $y)); + } + } + if (!isset($C['schemes']['*'])) { + $C['schemes']['*'] = array('file'=>1, 'http'=>1, 'https'=>1, 'ws'=>1, 'wss'=>1); + if (empty($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']) || !preg_match('`^[a-zA-Z\d.+\-]+://[^/]+/(.+?/)?$`', $C['base_url'])) { + $C['base_url'] = $C['abs_url'] = 0; + } + + // -- Configure other parameters. + + $C['and_mark'] = empty($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($C['anti_link_spam'][0]) + || hl_regex($C['anti_link_spam'][0])) + && (empty($C['anti_link_spam'][1]) + || hl_regex($C['anti_link_spam'][1]))) + ? $C['anti_link_spam'] + : 0; + $C['anti_mail_spam'] = isset($C['anti_mail_spam']) ? $C['anti_mail_spam'] : 0; + $C['any_custom_element'] = (!isset($C['any_custom_element']) || !empty($C['any_custom_element'])) ? 1 : 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']) && is_callable($C['hook'])) ? $C['hook'] : 0; + $C['hook_tag'] = (!empty($C['hook_tag']) && is_callable($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'])) { + $oldC = $GLOBALS['C']; + } + $GLOBALS['C'] = $C; + + // Set $S array ($spec). + + $S = is_array($S) ? $S : hl_spec($S); + if (isset($GLOBALS['S'])) { + $oldS = $GLOBALS['S']; + } + $GLOBALS['S'] = $S; + + // Handle characters. + + $t = preg_replace('`[\x00-\x08\x0b-\x0c\x0e-\x1f]`', '', $t); // Remove illegal + if ($C['clean_ms_char']) { // Convert MS Windows CP-1252 + $x = array("\x7f"=>'', "\x80"=>'€', "\x81"=>'', "\x83"=>'ƒ', "\x85"=>'…', "\x86"=>'†', "\x87"=>'‡', "\x88"=>'ˆ', "\x89"=>'‰', "\x8a"=>'Š', "\x8b"=>'‹', "\x8c"=>'Œ', "\x8d"=>'', "\x8e"=>'Ž', "\x8f"=>'', "\x90"=>'', "\x95"=>'•', "\x96"=>'–', "\x97"=>'—', "\x98"=>'˜', "\x99"=>'™', "\x9a"=>'š', "\x9b"=>'›', "\x9c"=>'œ', "\x9d"=>'', "\x9e"=>'ž', "\x9f"=>'Ÿ'); + $x = $x + + ($C['clean_ms_char'] == 1 + ? array("\x82"=>'‚', "\x84"=>'„', "\x91"=>'‘', "\x92"=>'’', "\x93"=>'“', "\x94"=>'”') + : array("\x82"=>'\'', "\x84"=>'"', "\x91"=>'\'', "\x92"=>'\'', "\x93"=>'"', "\x94"=>'"')); + $t = strtr($t, $x); + } + + // Handle CDATA, comments, and entities. + + if ($C['cdata'] || $C['comment']) { + $t = preg_replace_callback('``sm', 'hl_commentCdata', $t); + } + $t = + preg_replace_callback( + '`&([a-zA-Z][a-zA-Z0-9]{1,30}|#(?:[0-9]{1,8}|[Xx][0-9A-Fa-f]{1,7}));`', + 'hl_entity', + str_replace('&', '&', $t)); + if ($C['unique_ids'] && !isset($GLOBALS['hl_Ids'])) { + $GLOBALS['hl_Ids'] = array(); + } + + if ($C['hook']) { + $t = call_user_func($C['hook'], $t, $C, $S); + } + + // Handle remaining text. + + $t = preg_replace_callback('`<(?:(?:\s|$)|(?:[^>]*(?:>|$)))|>`m', 'hl_tag', $t); + $t = $C['balance'] ? hl_balance($t, $C['keep_bad'], $C['parent']) : $t; + $t = (($C['cdata'] || $C['comment']) && strpos($t, "\x01") !== false) + ? str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05"), array('', '', '&', '<', '>'), $t) + : $t; + $t = $C['tidy'] ? hl_tidy($t, $C['tidy'], $C['parent']) : $t; + + // Cleanup. + + if ($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(true), 'version'=>hl_version()); + } + unset($C, $eleAr); + if (isset($oldC)) { + $GLOBALS['C'] = $oldC; + } + if (isset($oldS)) { + $GLOBALS['S'] = $oldS; + } + return $t; +} + +/** + * Validate attribute value and possibly reset to a default. + * + * @param string $attr Attribute name. + * @param string $value Attribute value. + * @param array $ruleAr Array of rules derived from $spec. + * @param string $ele Element. + * @return mixed 0 if invalid $value, + * or string with validated or default value. + */ +function hl_attributeValue($attr, $value, $ruleAr, $ele) +{ + static $spacedValsAttrAr = array('accesskey', 'class', 'itemtype', 'rel'); // Some attributes have multiple values + $valSep = + (in_array($attr, $spacedValsAttrAr) || ($attr == 'archive' && $ele == 'object')) + ? ' ' + : (($attr == 'sizes' || $attr == 'srcset' || ($attr == 'archive' && $ele == 'applet')) + ? ',' + : ''); + $out = array(); + $valAr = !empty($valSep) ? explode($valSep, $value) : array($value); + foreach ($valAr as $v) { + $ok = 1; + $v = trim($v); + $lengthVal = strlen($v); + foreach ($ruleAr as $ruleType=>$ruleVal) { + if (!$lengthVal) { + continue; + } + switch ($ruleType) { + case 'maxlen': if ($lengthVal > $ruleVal) { + $ok = 0; + } + break; case 'minlen': if ($lengthVal < $ruleVal) { + $ok = 0; + } + break; case 'maxval': if ((float)($v) > $ruleVal) { + $ok = 0; + } + break; case 'minval': if ((float)($v) < $ruleVal) { + $ok = 0; + } + break; case 'match': if (!preg_match($ruleVal, $v)) { + $ok = 0; + } + break; case 'nomatch': if (preg_match($ruleVal, $v)) { + $ok = 0; + } + break; case 'oneof': if(!in_array($v, explode('|', $ruleVal))) { + $ok = 0; + } + break; case 'noneof': if(in_array($v, explode('|', $ruleVal))) { + $ok = 0; + } + break; default: + break; + } + if (!$ok) { + break; + } + } + if ($ok) { + $out[] = $v; + } + } + $out = implode($valSep == ',' ? ', ' : ' ', $out); + return (isset($out[0]) ? $out : (isset($ruleAr['default']) ? $ruleAr['default'] : 0)); +} + +/* + * Enforce parent-child validity of elements and balance tags. + * + * @param string $t HTM. Previously partly sanitized/filtered. CDATA + * and comment sections have characters hidden. + * @param int $act $config's keep_bad parameter. + * @param string $parentEle $t's parent element option. + * @return string $t with valid nesting and balanced tags. + */ +function hl_balance($t, $act=1, $parentEle='div') +{ + // Group elements in different ways. + + $closingTagOmitableEleAr = array('caption'=>1, 'colgroup'=>1, 'dd'=>1, 'dt'=>1, 'li'=>1, 'optgroup'=>1, 'option'=>1, 'p'=>1, 'rp'=>1, 'rt'=>1, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1); + + // -- Block, inline, etc. + + $blockEleAr = array('a'=>1, 'address'=>1, 'article'=>1, 'aside'=>1, 'blockquote'=>1, 'center'=>1, 'del'=>1, 'details'=>1, 'dialog'=>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, 'slot'=>1, 'style'=>1, 'table'=>1, 'template'=>1, 'ul'=>1); + $inlineEleAr = 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, 'picture'=>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); + $otherEleAr = 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); + $flowEleAr = $blockEleAr + $inlineEleAr; + + // -- Type of child allowed. + + $blockKidEleAr = array('blockquote'=>1, 'form'=>1, 'map'=>1, 'noscript'=>1); + $flowKidEleAr = array('a'=>1, 'article'=>1, 'aside'=>1, 'audio'=>1, 'button'=>1, 'canvas'=>1, 'del'=>1, 'details'=>1, 'dialog'=>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, 'slot'=>1, 'style'=>1, 'td'=>1, 'template'=>1, 'th'=>1, 'video'=>1); // Later context-wise dynamic move of ins & del to $inlineKidEleAr + $inlineKidEleAr = 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, 'picture'=>1, 'pre'=>1, 'progress'=>1, 'q'=>1, 'rb'=>1, 'rt'=>1, 'ruby'=>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); + $noKidEleAr = 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); + + // Special parent-child relations. + + $invalidMomKidAr = array('a'=>array('a'=>1, 'address'=>1, 'button'=>1, 'details'=>1, 'embed'=>1, 'iframe'=>1, 'keygen'=>1, 'label'=>1, 'select'=>1, 'textarea'=>1), 'address'=>array('address'=>1, 'article'=>1, 'aside'=>1, 'footer'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'header'=>1, 'hgroup'=>1, 'keygen'=>1, 'nav'=>1, 'section'=>1), 'audio'=>array('audio'=>1, 'video'=>1), 'button'=>array('a'=>1, 'address'=>1, 'button'=>1, 'details'=>1, 'embed'=>1, 'iframe'=>1, 'keygen'=>1, 'label'=>1, 'select'=>1, 'textarea'=>1), 'dfn'=>array('dfn'=>1), 'fieldset'=>array('fieldset'=>1), 'footer'=>array('footer'=>1, 'header'=>1), 'form'=>array('form'=>1), 'header'=>array('footer'=>1, 'header'=>1), 'label'=>array('label'=>1), 'main'=>array('main'=>1), 'meter'=>array('meter'=>1), 'noscript'=>array('script'=>1), 'progress'=>array('progress'=>1), 'rb'=>array('ruby'=>1), 'rt'=>array('ruby'=>1), 'ruby'=>array('ruby'=>1), 'time'=>array('time'=>1), 'video'=>array('audio'=>1, 'video'=>1)); + $invalidKidEleAr = array('a'=>1, 'address'=>1, 'article'=>1, 'aside'=>1, 'audio'=>1, 'button'=>1, 'details'=>1, 'dfn'=>1, 'embed'=>1, 'fieldset'=>1, 'footer'=>1, 'form'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'header'=>1, 'hgroup'=>1, 'iframe'=>1, 'keygen'=>1, 'label'=>1, 'main'=>1, 'meter'=>1, 'nav'=>1, 'progress'=>1, 'ruby'=>1, 'script'=>1, 'section'=>1, 'select'=>1, 'textarea'=>1, 'time'=>1, 'video'=>1); // $invalidMomKidAr values + $invalidMomEleAr = array_keys($invalidMomKidAr); + $validMomKidAr = array('colgroup'=>array('col'=>1, 'template'=>1), 'datalist'=>array('option'=>1, 'script'=>1), 'dir'=>array('li'=>1), 'dl'=>array('dd'=>1, 'div'=>1, 'dt'=>1), 'hgroup'=>array('h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1), 'menu'=>array('li'=>1, 'script'=>1, 'template'=>1), 'ol'=>array('li'=>1, 'script'=>1, 'template'=>1), 'optgroup'=>array('option'=>1, 'script'=>1, 'template'=>1), 'option'=>array('#pcdata'=>1), 'picture'=>array('img'=>1, 'script'=>1, 'source'=>1, 'template'=>1), 'rbc'=>array('rb'=>1), 'rp'=>array('#pcdata'=>1), 'rtc'=>array('rp'=>1, 'rt'=>1), 'select'=>array('optgroup'=>1, 'option'=>1), 'script'=>array('#pcdata'=>1), 'table'=>array('caption'=>1, 'col'=>1, 'colgroup'=>1, 'script'=>1, 'tbody'=>1, 'tfoot'=>1, 'thead'=>1, 'tr'=>1, 'template'=>1), 'tbody'=>array('script'=>1, 'template'=>1, 'tr'=>1), 'tfoot'=>array('tr'=>1), 'textarea'=>array('#pcdata'=>1), 'thead'=>array('script'=>1, 'template'=>1, 'tr'=>1), 'tr'=>array('script'=>1, 'td'=>1, 'template'=>1, 'th'=>1), 'ul'=>array('li'=>1, 'script'=>1, 'template'=>1)); // Immediate parent-child relation + if ($GLOBALS['C']['direct_list_nest']) { + $validMomKidAr['ol'] = $validMomKidAr['ul'] = $validMomKidAr['menu'] += array('menu'=>1, 'ol'=>1, 'ul'=>1); + } + $otherValidMomKidAr = array('address'=>array('p'=>1), 'applet'=>array('param'=>1), 'audio'=>array('source'=>1, 'track'=>1), 'blockquote'=>array('script'=>1), 'fieldset'=>array('legend'=>1, '#pcdata'=>1), 'figure'=>array('figcaption'=>1),'form'=>array('script'=>1), 'map'=>array('area'=>1), 'legend'=>array('h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1), 'object'=>array('param'=>1, 'embed'=>1), 'ruby'=>array('rb'=>1, 'rbc'=>1, 'rp'=>1, 'rt'=>1, 'rtc'=>1), 'summary'=>array('h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'hgroup'=>1), 'video'=>array('source'=>1, 'track'=>1)); + + // Valid elements for top-level parent. + + $mom = ((isset($flowEleAr[$parentEle]) && $parentEle != '#pcdata') + || isset($otherEleAr[$parentEle])) + ? $parentEle + : 'div'; + if (isset($noKidEleAr[$mom])) { + return (!$act ? '' : str_replace(array('<', '>'), array('<', '>'), $t)); + } + if (isset($validMomKidAr[$mom])) { + $validInMomEleAr = $validMomKidAr[$mom]; + } elseif (isset($inlineKidEleAr[$mom])) { + $validInMomEleAr = $inlineEleAr; + $inlineKidEleAr['del'] = 1; + $inlineKidEleAr['ins'] = 1; + } elseif (isset($flowKidEleAr[$mom])) { + $validInMomEleAr = $flowEleAr; + unset($inlineKidEleAr['del'], $inlineKidEleAr['ins']); + } elseif (isset($blockKidEleAr[$mom])) { + $validInMomEleAr = $blockEleAr; + unset($inlineKidEleAr['del'], $inlineKidEleAr['ins']); + } + if (isset($otherValidMomKidAr[$mom])) { + $validInMomEleAr = $validInMomEleAr + $otherValidMomKidAr[$mom]; + } + if (isset($invalidMomKidAr[$mom])) { + $validInMomEleAr = array_diff_assoc($validInMomEleAr, $invalidMomKidAr[$mom]); + } + if (strpos($mom, '-')) { // Custom element + $validInMomEleAr = array('*' => 1, '#pcdata' =>1); + } + + // Loop over elements. + + $t = explode('<', $t); + $validKidsOfMom = $openEleQueue = array(); // Queue of opened elements + ob_start(); + for ($i=-1, $eleCount=count($t); ++$i<$eleCount;) { + + // Check element validity as child. Same code as section: Finishing (below). + + if ($queueLength = count($openEleQueue)) { + $eleNow = array_pop($openEleQueue); + $openEleQueue[] = $eleNow; + if (isset($validMomKidAr[$eleNow])) { + $validKidsOfMom = $validMomKidAr[$eleNow]; + } elseif (isset($inlineKidEleAr[$eleNow])) { + $validKidsOfMom = $inlineEleAr; + $inlineKidEleAr['del'] = 1; + $inlineKidEleAr['ins'] = 1; + } elseif (isset($flowKidEleAr[$eleNow])) { + $validKidsOfMom = $flowEleAr; + unset($inlineKidEleAr['del'], $inlineKidEleAr['ins']); + } elseif (isset($blockKidEleAr[$eleNow])) { + $validKidsOfMom = $blockEleAr; + unset($inlineKidEleAr['del'], $inlineKidEleAr['ins']); + } + if (isset($otherValidMomKidAr[$eleNow])) { + $validKidsOfMom = $validKidsOfMom + $otherValidMomKidAr[$eleNow]; + } + if (isset($invalidMomKidAr[$eleNow])) { + $validKidsOfMom = array_diff_assoc($validKidsOfMom, $invalidMomKidAr[$eleNow]); + } + if (strpos($eleNow, '-')) { // Custom element + $validKidsOfMom = array('*'=>1, '#pcdata'=>1); + } + } else { + $validKidsOfMom = $validInMomEleAr; + unset($inlineKidEleAr['del'], $inlineKidEleAr['ins']); + } + if ( + isset($ele) + && ($act == 1 + || (isset($validKidsOfMom['#pcdata']) + && ($act == 3 + || $act == 5))) + ) { + echo '<', $slash, $ele, $attrs, '>'; + } + if (isset($content[0])) { + if (strlen(trim($content)) + && (($queueLength && isset($blockKidEleAr[$eleNow])) + || (isset($blockKidEleAr[$mom]) && !$queueLength)) + ) { + echo '
', $content, '
'; + } elseif ($act < 3 || isset($validKidsOfMom['#pcdata'])) { + echo $content; + } elseif (strpos($content, "\x02\x04")) { + foreach ( + preg_split( + '`(\x01\x02[^\x01\x02]+\x02\x01)`', $content, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $m) { + echo( + substr($m, 0, 2) == "\x01\x02" + ? $m + : ($act > 4 + ? preg_replace('`\S`', '', $m) + : '')); + } + } elseif ($act > 4) { + echo preg_replace('`\S`', '', $content); + } + } // End: Check element validity as child + + // Get parts of element. + + if (!preg_match('`^(/?)([a-z][^ >]*)([^>]*)>(.*)`sm', $t[$i], $m)) { + $content = $t[$i]; + continue; + } + $slash = null; // Closing tag's slash + $ele = null; // Name + $attrs = null; // Attribute string + $content = null; // Content + list($all, $slash, $ele, $attrs, $content) = $m; + + // Handle closing tag. + + if ($slash) { + if (isset($noKidEleAr[$ele]) || !in_array($ele, $openEleQueue)) { // Element empty type or unopened + continue; + } + if ($eleNow == $ele) { // Last open tag + array_pop($openEleQueue); + echo ''; + unset($ele); + continue; + } + $closedTags = ''; // Nesting, so close open elements as necessary + for ($j=-1, $cj=count($openEleQueue); ++$j<$cj;) { + if (($closableEle = array_pop($openEleQueue)) == $ele) { + break; + } else { + $closedTags .= ""; + } + } + echo $closedTags, ''; + unset($ele); + continue; + } + + // Handle opening tag. + + if (isset($blockKidEleAr[$ele]) && strlen(trim($content))) { // $blockKidEleAr element needs $blockEleAr element + $t[$i] = "{$ele}{$attrs}>"; + array_splice($t, $i+1, 0, 'div>'. $content); + unset($ele, $content); + ++$eleCount; + --$i; + continue; + } + if (strpos($ele, '-')) { // Custom element + $validKidsOfMom[$ele] = 1; + } + if ((($queueLength && isset($blockKidEleAr[$eleNow])) + || (isset($blockKidEleAr[$mom]) && !$queueLength)) + && !isset($blockEleAr[$ele]) + && !isset($validKidsOfMom[$ele]) + && !isset($validKidsOfMom['*']) + ) { + array_splice($t, $i, 0, 'div>'); + unset($ele, $content); + ++$eleCount; + --$i; + continue; + } + if ( + !$queueLength + || !isset($invalidKidEleAr[$ele]) + || !array_intersect($openEleQueue, $invalidMomEleAr) + ) { // If no open element; mostly immediate parent-child relation should hold + if (!isset($validKidsOfMom[$ele]) && !isset($validKidsOfMom['*'])) { + if ($queueLength && isset($closingTagOmitableEleAr[$eleNow])) { + echo ''; + unset($ele, $content); + --$i; + } + continue; + } + if (!isset($noKidEleAr[$ele])) { + $openEleQueue[] = $ele; + } + echo '<', $ele, $attrs, '>'; + unset($ele); + continue; + } + if (isset($validMomKidAr[$eleNow][$ele])) { // Specific parent-child relation + if (!isset($noKidEleAr[$ele])) { + $openEleQueue[] = $ele; + } + echo '<', $ele, $attrs, '>'; + unset($ele); + continue; + } + $closedTags = ''; // Nesting, so close open elements as needed + $openEleQueue2 = array(); + for ($k=-1, $kc=count($openEleQueue); ++$k<$kc;) { + $closableEle = $openEleQueue[$k]; + $validKids2 = array(); + if (isset($validMomKidAr[$closableEle])) { + $openEleQueue2[] = $closableEle; + continue; + } + $validKids2 = isset($inlineKidEleAr[$closableEle]) ? $inlineEleAr : $flowEleAr; + if (isset($otherValidMomKidAr[$closableEle])) { + $validKids2 = $validKids2 + $otherValidMomKidAr[$closableEle]; + } + if (isset($invalidMomKidAr[$closableEle])) { + $validKids2 = array_diff_assoc($validKids2, $invalidMomKidAr[$closableEle]); + } + if (!isset($validKids2[$ele]) && !strpos($ele, '-')) { + if (!$k && !isset($validInMomEleAr[$ele]) && !isset($validInMomEleAr['*'])) { + continue 2; + } + $closedTags = ""; + for (;++$k<$kc;) { + $closedTags = "{$closedTags}"; + } + break; + } else { + $openEleQueue2[] = $closableEle; + } + } + $openEleQueue = $openEleQueue2; + if (!isset($noKidEleAr[$ele])) { + $openEleQueue[] = $ele; + } + echo $closedTags, '<', $ele, $attrs, '>'; + unset($ele); + continue; + } // End of For: loop over elements + + // Finishing. Same code as: 'Check element validity as child'. + + if ($queueLength = count($openEleQueue)) { + $eleNow = array_pop($openEleQueue); + $openEleQueue[] = $eleNow; + if (isset($validMomKidAr[$eleNow])) { + $validKidsOfMom = $validMomKidAr[$eleNow]; + } elseif (isset($inlineKidEleAr[$eleNow])) { + $validKidsOfMom = $inlineEleAr; + $inlineKidEleAr['del'] = 1; + $inlineKidEleAr['ins'] = 1; + } elseif (isset($flowKidEleAr[$eleNow])) { + $validKidsOfMom = $flowEleAr; + unset($inlineKidEleAr['del'], $inlineKidEleAr['ins']); + } elseif (isset($blockKidEleAr[$eleNow])) { + $validKidsOfMom = $blockEleAr; + unset($inlineKidEleAr['del'], $inlineKidEleAr['ins']); + } + if (isset($otherValidMomKidAr[$eleNow])) { + $validKidsOfMom = $validKidsOfMom + $otherValidMomKidAr[$eleNow]; + } + if (isset($invalidMomKidAr[$eleNow])) { + $validKidsOfMom = array_diff_assoc($validKidsOfMom, $invalidMomKidAr[$eleNow]); + } + if (strpos($eleNow, '-')) { // Custom element + $validKidsOfMom = array('*'=>1, '#pcdata'=>1); + } + } else { + $validKidsOfMom = $validInMomEleAr; + unset($inlineKidEleAr['del'], $inlineKidEleAr['ins']); + } + if ( + isset($ele) + && ($act == 1 + || (isset($validKidsOfMom['#pcdata']) + && ($act == 3 + || $act == 5))) + ) { + echo '<', $slash, $ele, $attrs, '>'; + } + if (isset($content[0])) { + if ( + strlen(trim($content)) + && (($queueLength && isset($blockKidEleAr[$eleNow])) + || (isset($blockKidEleAr[$mom]) && !$queueLength)) + ) { + echo '
', $content, '
'; + } elseif ($act < 3 || isset($validKidsOfMom['#pcdata'])) { + echo $content; + } elseif (strpos($content, "\x02\x04")) { + foreach ( + preg_split( + '`(\x01\x02[^\x01\x02]+\x02\x01)`', $content, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $m) { + echo( + substr($m, 0, 2) == "\x01\x02" + ? $m + : ($act > 4 + ? preg_replace('`\S`', '', $m) + : '')); + } + } elseif ($act > 4) { + echo preg_replace('`\S`', '', $content); + } + } // End: Finishing + + while (!empty($openEleQueue) && ($ele = array_pop($openEleQueue))) { + echo ''; + } + $o = ob_get_contents(); + ob_end_clean(); + return $o; +} + +/** + * Handle comment/CDATA section. + * + * Filter/sanitize as per $config and disguise special characters. + * + * @param array $t Array result of preg_replace, with potential comment/CDATA. + * @return string Sanitized comment/CDATA with hidden special characters. + */ +function hl_commentCdata($t) +{ + $t = $t[0]; + global $C; + if (!($rule = $C[$type = $t[3] == '-' ? 'comment' : 'cdata'])) { + return $t; + } + if ($rule == 1) { + return ''; + } + if ($type == 'comment') { + if (substr(($t = preg_replace('`--+`', '-', substr($t, 4, -3))), -1) != ' ') { + $t .= $rule == 4 ? '' : ' '; + } + } else { + $t = substr($t, 1, -1); + } + $t = $rule == 2 ? str_replace(array('&', '<', '>'), array('&', '<', '>'), $t) : $t; + return + str_replace( + array('&', '<', '>'), + array("\x03", "\x04", "\x05"), + ($type == 'comment' ? "\x01\x02\x04!--$t--\x05\x02\x01" : "\x01\x01\x04$t\x05\x01\x01")); +} + +/** + * Transform deprecated element, with any attribute, into a new element. + * + * + * @param string $ele Deprecated element. + * @param string $attrStr Attribute string of element. + * @param int $act No transformation if 2. + * @return mixed New attribute string (may be empty) or 0. + */ +function hl_deprecatedElement(&$ele, &$attrStr, $act=1) +{ + if ($ele == 'big') { + $ele = 'span'; + return 'font-size: larger;'; + } + if ($ele == 's' || $ele == 'strike') { + $ele = 'span'; + return 'text-decoration: line-through;'; + } + if ($ele == 'tt') { + $ele = 'code'; + return ''; + } + if ($ele == 'center') { + $ele = 'div'; + return 'text-align: center;'; + } + static $fontSizeAr = array('0'=>'xx-small', '1'=>'xx-small', '2'=>'small', '3'=>'medium', '4'=>'large', '5'=>'x-large', '6'=>'xx-large', '7'=>'300%', '-1'=>'smaller', '-2'=>'60%', '+1'=>'larger', '+2'=>'150%', '+3'=>'200%', '+4'=>'300%'); + if ($ele == 'font') { + $attrStrNew = ''; + while (preg_match('`(^|\s)(color|size)\s*=\s*(\'|")?(.+?)(\\3|\s|$)`i', $attrStr, $m)) { + $attrStr = str_replace($m[0], ' ', $attrStr) ; + $attrStrNew .= + strtolower($m[2]) == 'color' + ? ' color: '. str_replace(array('"', ';', ':'), '\'', trim($m[4])). ';' + : (isset($fontSizeAr[($m = trim($m[4]))]) + ? ' font-size: '. $fontSizeAr[$m]. ';' + : ''); + } + while ( + preg_match('`(^|\s)face\s*=\s*(\'|")?([^=]+?)\\2`i', $attrStr, $m) + || preg_match('`(^|\s)face\s*=(\s*)(\S+)`i', $attrStr, $m) + ) { + $attrStr = str_replace($m[0], ' ', $attrStr) ; + $attrStrNew .= ' font-family: '. str_replace(array('"', ';', ':'), '\'', trim($m[3])). ';'; + } + $ele = 'span'; + return ltrim(str_replace('<', '', $attrStrNew)); + } + if ($ele == 'acronym') { + $ele = 'abbr'; + return ''; + } + if ($ele == 'dir') { + $ele = 'ul'; + return ''; + } + if ($act == 2) { + $ele = 0; + return 0; + } + return ''; +} + +/** + * Handle entity. + * + * As needed, convert to named/hexadecimal form, or neutralize '&' as '&'. + * + * @param array $t Array result of preg_replace, with potential entity. + * @return string Neutralized or converted entity. + */ +function hl_entity($t) +{ + global $C; + $t = $t[1]; + static $reservedEntAr = array('amp'=>1, 'AMP'=>1, 'gt'=>1, 'GT'=>1, 'lt'=>1, 'LT'=>1, 'quot'=>1, 'QUOT'=>1); + static $commonEntNameAr = array('Aacute'=>'193', 'aacute'=>'225', 'Acirc'=>'194', 'acirc'=>'226', 'acute'=>'180', 'AElig'=>'198', 'aelig'=>'230', 'Agrave'=>'192', 'agrave'=>'224', 'alefsym'=>'8501', 'Alpha'=>'913', 'alpha'=>'945', 'and'=>'8743', 'ang'=>'8736', 'apos'=>'39', 'Aring'=>'197', 'aring'=>'229', 'asymp'=>'8776', 'Atilde'=>'195', 'atilde'=>'227', 'Auml'=>'196', 'auml'=>'228', 'bdquo'=>'8222', 'Beta'=>'914', 'beta'=>'946', 'brvbar'=>'166', 'bull'=>'8226', 'cap'=>'8745', 'Ccedil'=>'199', 'ccedil'=>'231', 'cedil'=>'184', 'cent'=>'162', 'Chi'=>'935', 'chi'=>'967', 'circ'=>'710', 'clubs'=>'9827', 'cong'=>'8773', 'copy'=>'169', 'crarr'=>'8629', 'cup'=>'8746', 'curren'=>'164', 'dagger'=>'8224', 'Dagger'=>'8225', 'darr'=>'8595', 'dArr'=>'8659', 'deg'=>'176', 'Delta'=>'916', 'delta'=>'948', 'diams'=>'9830', 'divide'=>'247', 'Eacute'=>'201', 'eacute'=>'233', 'Ecirc'=>'202', 'ecirc'=>'234', 'Egrave'=>'200', 'egrave'=>'232', 'empty'=>'8709', 'emsp'=>'8195', 'ensp'=>'8194', 'Epsilon'=>'917', 'epsilon'=>'949', 'equiv'=>'8801', 'Eta'=>'919', 'eta'=>'951', 'ETH'=>'208', 'eth'=>'240', 'Euml'=>'203', 'euml'=>'235', 'euro'=>'8364', 'exist'=>'8707', 'fnof'=>'402', 'forall'=>'8704', 'frac12'=>'189', 'frac14'=>'188', 'frac34'=>'190', 'frasl'=>'8260', 'Gamma'=>'915', 'gamma'=>'947', 'ge'=>'8805', 'harr'=>'8596', 'hArr'=>'8660', 'hearts'=>'9829', 'hellip'=>'8230', 'Iacute'=>'205', 'iacute'=>'237', 'Icirc'=>'206', 'icirc'=>'238', 'iexcl'=>'161', 'Igrave'=>'204', 'igrave'=>'236', 'image'=>'8465', 'infin'=>'8734', 'int'=>'8747', 'Iota'=>'921', 'iota'=>'953', 'iquest'=>'191', 'isin'=>'8712', 'Iuml'=>'207', 'iuml'=>'239', 'Kappa'=>'922', 'kappa'=>'954', 'Lambda'=>'923', 'lambda'=>'955', 'laquo'=>'171', 'larr'=>'8592', 'lArr'=>'8656', 'lceil'=>'8968', 'ldquo'=>'8220', 'le'=>'8804', 'lfloor'=>'8970', 'lowast'=>'8727', 'loz'=>'9674', 'lrm'=>'8206', 'lsaquo'=>'8249', 'lsquo'=>'8216', 'macr'=>'175', 'mdash'=>'8212', 'micro'=>'181', 'middot'=>'183', 'minus'=>'8722', 'Mu'=>'924', 'mu'=>'956', 'nabla'=>'8711', 'nbsp'=>'160', 'ndash'=>'8211', 'ne'=>'8800', 'ni'=>'8715', 'not'=>'172', 'notin'=>'8713', 'nsub'=>'8836', 'Ntilde'=>'209', 'ntilde'=>'241', 'Nu'=>'925', 'nu'=>'957', 'Oacute'=>'211', 'oacute'=>'243', 'Ocirc'=>'212', 'ocirc'=>'244', 'OElig'=>'338', 'oelig'=>'339', 'Ograve'=>'210', 'ograve'=>'242', 'oline'=>'8254', 'Omega'=>'937', 'omega'=>'969', 'Omicron'=>'927', 'omicron'=>'959', 'oplus'=>'8853', 'or'=>'8744', 'ordf'=>'170', 'ordm'=>'186', 'Oslash'=>'216', 'oslash'=>'248', 'Otilde'=>'213', 'otilde'=>'245', 'otimes'=>'8855', 'Ouml'=>'214', 'ouml'=>'246', 'para'=>'182', 'part'=>'8706', 'permil'=>'8240', 'perp'=>'8869', 'Phi'=>'934', 'phi'=>'966', 'Pi'=>'928', 'pi'=>'960', 'piv'=>'982', 'plusmn'=>'177', 'pound'=>'163', 'prime'=>'8242', 'Prime'=>'8243', 'prod'=>'8719', 'prop'=>'8733', 'Psi'=>'936', 'psi'=>'968', 'radic'=>'8730', 'raquo'=>'187', 'rarr'=>'8594', 'rArr'=>'8658', 'rceil'=>'8969', 'rdquo'=>'8221', 'real'=>'8476', 'reg'=>'174', 'rfloor'=>'8971', 'Rho'=>'929', 'rho'=>'961', 'rlm'=>'8207', 'rsaquo'=>'8250', 'rsquo'=>'8217', 'sbquo'=>'8218', 'Scaron'=>'352', 'scaron'=>'353', 'sdot'=>'8901', 'sect'=>'167', 'shy'=>'173', 'Sigma'=>'931', 'sigma'=>'963', 'sigmaf'=>'962', 'sim'=>'8764', 'spades'=>'9824', 'sub'=>'8834', 'sube'=>'8838', 'sum'=>'8721', 'sup'=>'8835', 'sup1'=>'185', 'sup2'=>'178', 'sup3'=>'179', 'supe'=>'8839', 'szlig'=>'223', 'Tau'=>'932', 'tau'=>'964', 'there4'=>'8756', 'Theta'=>'920', 'theta'=>'952', 'thetasym'=>'977', 'thinsp'=>'8201', 'THORN'=>'222', 'thorn'=>'254', 'tilde'=>'732', 'times'=>'215', 'trade'=>'8482', 'Uacute'=>'218', 'uacute'=>'250', 'uarr'=>'8593', 'uArr'=>'8657', 'Ucirc'=>'219', 'ucirc'=>'251', 'Ugrave'=>'217', 'ugrave'=>'249', 'uml'=>'168', 'upsih'=>'978', 'Upsilon'=>'933', 'upsilon'=>'965', 'Uuml'=>'220', 'uuml'=>'252', 'weierp'=>'8472', 'Xi'=>'926', 'xi'=>'958', 'Yacute'=>'221', 'yacute'=>'253', 'yen'=>'165', 'yuml'=>'255', 'Yuml'=>'376', 'Zeta'=>'918', 'zeta'=>'950', 'zwj'=>'8205', 'zwnj'=>'8204'); + static $rareEntNameAr = array('Abreve'=>'258', 'abreve'=>'259', 'ac'=>'8766', 'acd'=>'8767', 'Acy'=>'1040', 'acy'=>'1072', 'af'=>'8289', 'Afr'=>'120068', 'afr'=>'120094', 'aleph'=>'8501', 'Amacr'=>'256', 'amacr'=>'257', 'amalg'=>'10815', 'And'=>'10835', 'andand'=>'10837', 'andd'=>'10844', 'andslope'=>'10840', 'andv'=>'10842', 'ange'=>'10660', 'angle'=>'8736', 'angmsd'=>'8737', 'angmsdaa'=>'10664', 'angmsdab'=>'10665', 'angmsdac'=>'10666', 'angmsdad'=>'10667', 'angmsdae'=>'10668', 'angmsdaf'=>'10669', 'angmsdag'=>'10670', 'angmsdah'=>'10671', 'angrt'=>'8735', 'angrtvb'=>'8894', 'angrtvbd'=>'10653', 'angsph'=>'8738', 'angst'=>'197', 'angzarr'=>'9084', 'Aogon'=>'260', 'aogon'=>'261', 'Aopf'=>'120120', 'aopf'=>'120146', 'ap'=>'8776', 'apacir'=>'10863', 'apE'=>'10864', 'ape'=>'8778', 'apid'=>'8779', 'ApplyFunction'=>'8289', 'approx'=>'8776', 'approxeq'=>'8778', 'Ascr'=>'119964', 'ascr'=>'119990', 'Assign'=>'8788', 'ast'=>'42', 'asympeq'=>'8781', 'awconint'=>'8755', 'awint'=>'10769', 'backcong'=>'8780', 'backepsilon'=>'1014', 'backprime'=>'8245', 'backsim'=>'8765', 'backsimeq'=>'8909', 'Backslash'=>'8726', 'Barv'=>'10983', 'barvee'=>'8893', 'barwed'=>'8965', 'Barwed'=>'8966', 'barwedge'=>'8965', 'bbrk'=>'9141', 'bbrktbrk'=>'9142', 'bcong'=>'8780', 'Bcy'=>'1041', 'bcy'=>'1073', 'becaus'=>'8757', 'because'=>'8757', 'Because'=>'8757', 'bemptyv'=>'10672', 'bepsi'=>'1014', 'bernou'=>'8492', 'Bernoullis'=>'8492', 'beth'=>'8502', 'between'=>'8812', 'Bfr'=>'120069', 'bfr'=>'120095', 'bigcap'=>'8898', 'bigcirc'=>'9711', 'bigcup'=>'8899', 'bigodot'=>'10752', 'bigoplus'=>'10753', 'bigotimes'=>'10754', 'bigsqcup'=>'10758', 'bigstar'=>'9733', 'bigtriangledown'=>'9661', 'bigtriangleup'=>'9651', 'biguplus'=>'10756', 'bigvee'=>'8897', 'bigwedge'=>'8896', 'bkarow'=>'10509', 'blacklozenge'=>'10731', 'blacksquare'=>'9642', 'blacktriangle'=>'9652', 'blacktriangledown'=>'9662', 'blacktriangleleft'=>'9666', 'blacktriangleright'=>'9656', 'blank'=>'9251', 'blk12'=>'9618', 'blk14'=>'9617', 'blk34'=>'9619', 'block'=>'9608', 'bNot'=>'10989', 'bnot'=>'8976', 'Bopf'=>'120121', 'bopf'=>'120147', 'bot'=>'8869', 'bottom'=>'8869', 'bowtie'=>'8904', 'boxbox'=>'10697', 'boxdl'=>'9488', 'boxdL'=>'9557', 'boxDl'=>'9558', 'boxDL'=>'9559', 'boxdr'=>'9484', 'boxdR'=>'9554', 'boxDr'=>'9555', 'boxDR'=>'9556', 'boxh'=>'9472', 'boxH'=>'9552', 'boxhd'=>'9516', 'boxHd'=>'9572', 'boxhD'=>'9573', 'boxHD'=>'9574', 'boxhu'=>'9524', 'boxHu'=>'9575', 'boxhU'=>'9576', 'boxHU'=>'9577', 'boxminus'=>'8863', 'boxplus'=>'8862', 'boxtimes'=>'8864', 'boxul'=>'9496', 'boxuL'=>'9563', 'boxUl'=>'9564', 'boxUL'=>'9565', 'boxur'=>'9492', 'boxuR'=>'9560', 'boxUr'=>'9561', 'boxUR'=>'9562', 'boxv'=>'9474', 'boxV'=>'9553', 'boxvh'=>'9532', 'boxvH'=>'9578', 'boxVh'=>'9579', 'boxVH'=>'9580', 'boxvl'=>'9508', 'boxvL'=>'9569', 'boxVl'=>'9570', 'boxVL'=>'9571', 'boxvr'=>'9500', 'boxvR'=>'9566', 'boxVr'=>'9567', 'boxVR'=>'9568', 'bprime'=>'8245', 'breve'=>'728', 'Breve'=>'728', 'bscr'=>'119991', 'Bscr'=>'8492', 'bsemi'=>'8271', 'bsim'=>'8765', 'bsime'=>'8909', 'bsol'=>'92', 'bsolb'=>'10693', 'bsolhsub'=>'10184', 'bullet'=>'8226', 'bump'=>'8782', 'bumpE'=>'10926', 'bumpe'=>'8783', 'Bumpeq'=>'8782', 'bumpeq'=>'8783', 'Cacute'=>'262', 'cacute'=>'263', 'Cap'=>'8914', 'capand'=>'10820', 'capbrcup'=>'10825', 'capcap'=>'10827', 'capcup'=>'10823', 'capdot'=>'10816', 'CapitalDifferentialD'=>'8517', 'caret'=>'8257', 'caron'=>'711', 'Cayleys'=>'8493', 'ccaps'=>'10829', 'Ccaron'=>'268', 'ccaron'=>'269', 'Ccirc'=>'264', 'ccirc'=>'265', 'Cconint'=>'8752', 'ccups'=>'10828', 'ccupssm'=>'10832', 'Cdot'=>'266', 'cdot'=>'267', 'Cedilla'=>'184', 'cemptyv'=>'10674', 'centerdot'=>'183', 'CenterDot'=>'183', 'cfr'=>'120096', 'Cfr'=>'8493', 'CHcy'=>'1063', 'chcy'=>'1095', 'check'=>'10003', 'checkmark'=>'10003', 'cir'=>'9675', 'circeq'=>'8791', 'circlearrowleft'=>'8634', 'circlearrowright'=>'8635', 'circledast'=>'8859', 'circledcirc'=>'8858', 'circleddash'=>'8861', 'CircleDot'=>'8857', 'circledR'=>'174', 'circledS'=>'9416', 'CircleMinus'=>'8854', 'CirclePlus'=>'8853', 'CircleTimes'=>'8855', 'cirE'=>'10691', 'cire'=>'8791', 'cirfnint'=>'10768', 'cirmid'=>'10991', 'cirscir'=>'10690', 'ClockwiseContourIntegral'=>'8754', 'CloseCurlyDoubleQuote'=>'8221', 'CloseCurlyQuote'=>'8217', 'clubsuit'=>'9827', 'colon'=>'58', 'Colon'=>'8759', 'Colone'=>'10868', 'colone'=>'8788', 'coloneq'=>'8788', 'comma'=>'44', 'commat'=>'64', 'comp'=>'8705', 'compfn'=>'8728', 'complement'=>'8705', 'complexes'=>'8450', 'congdot'=>'10861', 'Congruent'=>'8801', 'conint'=>'8750', 'Conint'=>'8751', 'ContourIntegral'=>'8750', 'copf'=>'120148', 'Copf'=>'8450', 'coprod'=>'8720', 'Coproduct'=>'8720', 'COPY'=>'169', 'copysr'=>'8471', 'CounterClockwiseContourIntegral'=>'8755', 'cross'=>'10007', 'Cross'=>'10799', 'Cscr'=>'119966', 'cscr'=>'119992', 'csub'=>'10959', 'csube'=>'10961', 'csup'=>'10960', 'csupe'=>'10962', 'ctdot'=>'8943', 'cudarrl'=>'10552', 'cudarrr'=>'10549', 'cuepr'=>'8926', 'cuesc'=>'8927', 'cularr'=>'8630', 'cularrp'=>'10557', 'Cup'=>'8915', 'cupbrcap'=>'10824', 'cupcap'=>'10822', 'CupCap'=>'8781', 'cupcup'=>'10826', 'cupdot'=>'8845', 'cupor'=>'10821', 'curarr'=>'8631', 'curarrm'=>'10556', 'curlyeqprec'=>'8926', 'curlyeqsucc'=>'8927', 'curlyvee'=>'8910', 'curlywedge'=>'8911', 'curvearrowleft'=>'8630', 'curvearrowright'=>'8631', 'cuvee'=>'8910', 'cuwed'=>'8911', 'cwconint'=>'8754', 'cwint'=>'8753', 'cylcty'=>'9005', 'daleth'=>'8504', 'Darr'=>'8609', 'dash'=>'8208', 'Dashv'=>'10980', 'dashv'=>'8867', 'dbkarow'=>'10511', 'dblac'=>'733', 'Dcaron'=>'270', 'dcaron'=>'271', 'Dcy'=>'1044', 'dcy'=>'1076', 'DD'=>'8517', 'dd'=>'8518', 'ddagger'=>'8225', 'ddarr'=>'8650', 'DDotrahd'=>'10513', 'ddotseq'=>'10871', 'Del'=>'8711', 'demptyv'=>'10673', 'dfisht'=>'10623', 'Dfr'=>'120071', 'dfr'=>'120097', 'dHar'=>'10597', 'dharl'=>'8643', 'dharr'=>'8642', 'DiacriticalAcute'=>'180', 'DiacriticalDot'=>'729', 'DiacriticalDoubleAcute'=>'733', 'DiacriticalGrave'=>'96', 'DiacriticalTilde'=>'732', 'diam'=>'8900', 'diamond'=>'8900', 'Diamond'=>'8900', 'diamondsuit'=>'9830', 'die'=>'168', 'DifferentialD'=>'8518', 'digamma'=>'989', 'disin'=>'8946', 'div'=>'247', 'divideontimes'=>'8903', 'divonx'=>'8903', 'DJcy'=>'1026', 'djcy'=>'1106', 'dlcorn'=>'8990', 'dlcrop'=>'8973', 'dollar'=>'36', 'Dopf'=>'120123', 'dopf'=>'120149', 'Dot'=>'168', 'dot'=>'729', 'DotDot'=>'8412', 'doteq'=>'8784', 'doteqdot'=>'8785', 'DotEqual'=>'8784', 'dotminus'=>'8760', 'dotplus'=>'8724', 'dotsquare'=>'8865', 'doublebarwedge'=>'8966', 'DoubleContourIntegral'=>'8751', 'DoubleDot'=>'168', 'DoubleDownArrow'=>'8659', 'DoubleLeftArrow'=>'8656', 'DoubleLeftRightArrow'=>'8660', 'DoubleLeftTee'=>'10980', 'DoubleLongLeftArrow'=>'10232', 'DoubleLongLeftRightArrow'=>'10234', 'DoubleLongRightArrow'=>'10233', 'DoubleRightArrow'=>'8658', 'DoubleRightTee'=>'8872', 'DoubleUpArrow'=>'8657', 'DoubleUpDownArrow'=>'8661', 'DoubleVerticalBar'=>'8741', 'downarrow'=>'8595', 'DownArrow'=>'8595', 'Downarrow'=>'8659', 'DownArrowBar'=>'10515', 'DownArrowUpArrow'=>'8693', 'DownBreve'=>'785', 'downdownarrows'=>'8650', 'downharpoonleft'=>'8643', 'downharpoonright'=>'8642', 'DownLeftRightVector'=>'10576', 'DownLeftTeeVector'=>'10590', 'DownLeftVector'=>'8637', 'DownLeftVectorBar'=>'10582', 'DownRightTeeVector'=>'10591', 'DownRightVector'=>'8641', 'DownRightVectorBar'=>'10583', 'DownTee'=>'8868', 'DownTeeArrow'=>'8615', 'drbkarow'=>'10512', 'drcorn'=>'8991', 'drcrop'=>'8972', 'Dscr'=>'119967', 'dscr'=>'119993', 'DScy'=>'1029', 'dscy'=>'1109', 'dsol'=>'10742', 'Dstrok'=>'272', 'dstrok'=>'273', 'dtdot'=>'8945', 'dtri'=>'9663', 'dtrif'=>'9662', 'duarr'=>'8693', 'duhar'=>'10607', 'dwangle'=>'10662', 'DZcy'=>'1039', 'dzcy'=>'1119', 'dzigrarr'=>'10239', 'easter'=>'10862', 'Ecaron'=>'282', 'ecaron'=>'283', 'ecir'=>'8790', 'ecolon'=>'8789', 'Ecy'=>'1069', 'ecy'=>'1101', 'eDDot'=>'10871', 'Edot'=>'278', 'edot'=>'279', 'eDot'=>'8785', 'ee'=>'8519', 'efDot'=>'8786', 'Efr'=>'120072', 'efr'=>'120098', 'eg'=>'10906', 'egs'=>'10902', 'egsdot'=>'10904', 'el'=>'10905', 'Element'=>'8712', 'elinters'=>'9191', 'ell'=>'8467', 'els'=>'10901', 'elsdot'=>'10903', 'Emacr'=>'274', 'emacr'=>'275', 'emptyset'=>'8709', 'EmptySmallSquare'=>'9723', 'emptyv'=>'8709', 'EmptyVerySmallSquare'=>'9643', 'emsp13'=>'8196', 'emsp14'=>'8197', 'ENG'=>'330', 'eng'=>'331', 'Eogon'=>'280', 'eogon'=>'281', 'Eopf'=>'120124', 'eopf'=>'120150', 'epar'=>'8917', 'eparsl'=>'10723', 'eplus'=>'10865', 'epsi'=>'949', 'epsiv'=>'1013', 'eqcirc'=>'8790', 'eqcolon'=>'8789', 'eqsim'=>'8770', 'eqslantgtr'=>'10902', 'eqslantless'=>'10901', 'Equal'=>'10869', 'equals'=>'61', 'EqualTilde'=>'8770', 'equest'=>'8799', 'Equilibrium'=>'8652', 'equivDD'=>'10872', 'eqvparsl'=>'10725', 'erarr'=>'10609', 'erDot'=>'8787', 'escr'=>'8495', 'Escr'=>'8496', 'esdot'=>'8784', 'Esim'=>'10867', 'esim'=>'8770', 'excl'=>'33', 'Exists'=>'8707', 'expectation'=>'8496', 'exponentiale'=>'8519', 'ExponentialE'=>'8519', 'fallingdotseq'=>'8786', 'Fcy'=>'1060', 'fcy'=>'1092', 'female'=>'9792', 'ffilig'=>'64259', 'fflig'=>'64256', 'ffllig'=>'64260', 'Ffr'=>'120073', 'ffr'=>'120099', 'filig'=>'64257', 'FilledSmallSquare'=>'9724', 'FilledVerySmallSquare'=>'9642', 'flat'=>'9837', 'fllig'=>'64258', 'fltns'=>'9649', 'Fopf'=>'120125', 'fopf'=>'120151', 'ForAll'=>'8704', 'fork'=>'8916', 'forkv'=>'10969', 'Fouriertrf'=>'8497', 'fpartint'=>'10765', 'frac13'=>'8531', 'frac15'=>'8533', 'frac16'=>'8537', 'frac18'=>'8539', 'frac23'=>'8532', 'frac25'=>'8534', 'frac35'=>'8535', 'frac38'=>'8540', 'frac45'=>'8536', 'frac56'=>'8538', 'frac58'=>'8541', 'frac78'=>'8542', 'frown'=>'8994', 'fscr'=>'119995', 'Fscr'=>'8497', 'gacute'=>'501', 'Gammad'=>'988', 'gammad'=>'989', 'gap'=>'10886', 'Gbreve'=>'286', 'gbreve'=>'287', 'Gcedil'=>'290', 'Gcirc'=>'284', 'gcirc'=>'285', 'Gcy'=>'1043', 'gcy'=>'1075', 'Gdot'=>'288', 'gdot'=>'289', 'gE'=>'8807', 'gEl'=>'10892', 'gel'=>'8923', 'geq'=>'8805', 'geqq'=>'8807', 'geqslant'=>'10878', 'ges'=>'10878', 'gescc'=>'10921', 'gesdot'=>'10880', 'gesdoto'=>'10882', 'gesdotol'=>'10884', 'gesles'=>'10900', 'Gfr'=>'120074', 'gfr'=>'120100', 'gg'=>'8811', 'Gg'=>'8921', 'ggg'=>'8921', 'gimel'=>'8503', 'GJcy'=>'1027', 'gjcy'=>'1107', 'gl'=>'8823', 'gla'=>'10917', 'glE'=>'10898', 'glj'=>'10916', 'gnap'=>'10890', 'gnapprox'=>'10890', 'gne'=>'10888', 'gnE'=>'8809', 'gneq'=>'10888', 'gneqq'=>'8809', 'gnsim'=>'8935', 'Gopf'=>'120126', 'gopf'=>'120152', 'grave'=>'96', 'GreaterEqual'=>'8805', 'GreaterEqualLess'=>'8923', 'GreaterFullEqual'=>'8807', 'GreaterGreater'=>'10914', 'GreaterLess'=>'8823', 'GreaterSlantEqual'=>'10878', 'GreaterTilde'=>'8819', 'Gscr'=>'119970', 'gscr'=>'8458', 'gsim'=>'8819', 'gsime'=>'10894', 'gsiml'=>'10896', 'Gt'=>'8811', 'gtcc'=>'10919', 'gtcir'=>'10874', 'gtdot'=>'8919', 'gtlPar'=>'10645', 'gtquest'=>'10876', 'gtrapprox'=>'10886', 'gtrarr'=>'10616', 'gtrdot'=>'8919', 'gtreqless'=>'8923', 'gtreqqless'=>'10892', 'gtrless'=>'8823', 'gtrsim'=>'8819', 'Hacek'=>'711', 'hairsp'=>'8202', 'half'=>'189', 'hamilt'=>'8459', 'HARDcy'=>'1066', 'hardcy'=>'1098', 'harrcir'=>'10568', 'harrw'=>'8621', 'Hat'=>'94', 'hbar'=>'8463', 'Hcirc'=>'292', 'hcirc'=>'293', 'heartsuit'=>'9829', 'hercon'=>'8889', 'hfr'=>'120101', 'Hfr'=>'8460', 'HilbertSpace'=>'8459', 'hksearow'=>'10533', 'hkswarow'=>'10534', 'hoarr'=>'8703', 'homtht'=>'8763', 'hookleftarrow'=>'8617', 'hookrightarrow'=>'8618', 'hopf'=>'120153', 'Hopf'=>'8461', 'horbar'=>'8213', 'HorizontalLine'=>'9472', 'hscr'=>'119997', 'Hscr'=>'8459', 'hslash'=>'8463', 'Hstrok'=>'294', 'hstrok'=>'295', 'HumpDownHump'=>'8782', 'HumpEqual'=>'8783', 'hybull'=>'8259', 'hyphen'=>'8208', 'ic'=>'8291', 'Icy'=>'1048', 'icy'=>'1080', 'Idot'=>'304', 'IEcy'=>'1045', 'iecy'=>'1077', 'iff'=>'8660', 'ifr'=>'120102', 'Ifr'=>'8465', 'ii'=>'8520', 'iiiint'=>'10764', 'iiint'=>'8749', 'iinfin'=>'10716', 'iiota'=>'8489', 'IJlig'=>'306', 'ijlig'=>'307', 'Im'=>'8465', 'Imacr'=>'298', 'imacr'=>'299', 'ImaginaryI'=>'8520', 'imagline'=>'8464', 'imagpart'=>'8465', 'imath'=>'305', 'imof'=>'8887', 'imped'=>'437', 'Implies'=>'8658', 'in'=>'8712', 'incare'=>'8453', 'infintie'=>'10717', 'inodot'=>'305', 'Int'=>'8748', 'intcal'=>'8890', 'integers'=>'8484', 'Integral'=>'8747', 'intercal'=>'8890', 'Intersection'=>'8898', 'intlarhk'=>'10775', 'intprod'=>'10812', 'InvisibleComma'=>'8291', 'InvisibleTimes'=>'8290', 'IOcy'=>'1025', 'iocy'=>'1105', 'Iogon'=>'302', 'iogon'=>'303', 'Iopf'=>'120128', 'iopf'=>'120154', 'iprod'=>'10812', 'iscr'=>'119998', 'Iscr'=>'8464', 'isindot'=>'8949', 'isinE'=>'8953', 'isins'=>'8948', 'isinsv'=>'8947', 'isinv'=>'8712', 'it'=>'8290', 'Itilde'=>'296', 'itilde'=>'297', 'Iukcy'=>'1030', 'iukcy'=>'1110', 'Jcirc'=>'308', 'jcirc'=>'309', 'Jcy'=>'1049', 'jcy'=>'1081', 'Jfr'=>'120077', 'jfr'=>'120103', 'jmath'=>'567', 'Jopf'=>'120129', 'jopf'=>'120155', 'Jscr'=>'119973', 'jscr'=>'119999', 'Jsercy'=>'1032', 'jsercy'=>'1112', 'Jukcy'=>'1028', 'jukcy'=>'1108', 'kappav'=>'1008', 'Kcedil'=>'310', 'kcedil'=>'311', 'Kcy'=>'1050', 'kcy'=>'1082', 'Kfr'=>'120078', 'kfr'=>'120104', 'kgreen'=>'312', 'KHcy'=>'1061', 'khcy'=>'1093', 'KJcy'=>'1036', 'kjcy'=>'1116', 'Kopf'=>'120130', 'kopf'=>'120156', 'Kscr'=>'119974', 'kscr'=>'120000', 'lAarr'=>'8666', 'Lacute'=>'313', 'lacute'=>'314', 'laemptyv'=>'10676', 'lagran'=>'8466', 'lang'=>'10216', 'Lang'=>'10218', 'langd'=>'10641', 'langle'=>'10216', 'lap'=>'10885', 'Laplacetrf'=>'8466', 'Larr'=>'8606', 'larrb'=>'8676', 'larrbfs'=>'10527', 'larrfs'=>'10525', 'larrhk'=>'8617', 'larrlp'=>'8619', 'larrpl'=>'10553', 'larrsim'=>'10611', 'larrtl'=>'8610', 'lat'=>'10923', 'latail'=>'10521', 'lAtail'=>'10523', 'late'=>'10925', 'lbarr'=>'10508', 'lBarr'=>'10510', 'lbbrk'=>'10098', 'lbrace'=>'123', 'lbrack'=>'91', 'lbrke'=>'10635', 'lbrksld'=>'10639', 'lbrkslu'=>'10637', 'Lcaron'=>'317', 'lcaron'=>'318', 'Lcedil'=>'315', 'lcedil'=>'316', 'lcub'=>'123', 'Lcy'=>'1051', 'lcy'=>'1083', 'ldca'=>'10550', 'ldquor'=>'8222', 'ldrdhar'=>'10599', 'ldrushar'=>'10571', 'ldsh'=>'8626', 'lE'=>'8806', 'LeftAngleBracket'=>'10216', 'leftarrow'=>'8592', 'LeftArrow'=>'8592', 'Leftarrow'=>'8656', 'LeftArrowBar'=>'8676', 'LeftArrowRightArrow'=>'8646', 'leftarrowtail'=>'8610', 'LeftCeiling'=>'8968', 'LeftDoubleBracket'=>'10214', 'LeftDownTeeVector'=>'10593', 'LeftDownVector'=>'8643', 'LeftDownVectorBar'=>'10585', 'LeftFloor'=>'8970', 'leftharpoondown'=>'8637', 'leftharpoonup'=>'8636', 'leftleftarrows'=>'8647', 'leftrightarrow'=>'8596', 'LeftRightArrow'=>'8596', 'Leftrightarrow'=>'8660', 'leftrightarrows'=>'8646', 'leftrightharpoons'=>'8651', 'leftrightsquigarrow'=>'8621', 'LeftRightVector'=>'10574', 'LeftTee'=>'8867', 'LeftTeeArrow'=>'8612', 'LeftTeeVector'=>'10586', 'leftthreetimes'=>'8907', 'LeftTriangle'=>'8882', 'LeftTriangleBar'=>'10703', 'LeftTriangleEqual'=>'8884', 'LeftUpDownVector'=>'10577', 'LeftUpTeeVector'=>'10592', 'LeftUpVector'=>'8639', 'LeftUpVectorBar'=>'10584', 'LeftVector'=>'8636', 'LeftVectorBar'=>'10578', 'lEg'=>'10891', 'leg'=>'8922', 'leq'=>'8804', 'leqq'=>'8806', 'leqslant'=>'10877', 'les'=>'10877', 'lescc'=>'10920', 'lesdot'=>'10879', 'lesdoto'=>'10881', 'lesdotor'=>'10883', 'lesges'=>'10899', 'lessapprox'=>'10885', 'lessdot'=>'8918', 'lesseqgtr'=>'8922', 'lesseqqgtr'=>'10891', 'LessEqualGreater'=>'8922', 'LessFullEqual'=>'8806', 'LessGreater'=>'8822', 'lessgtr'=>'8822', 'LessLess'=>'10913', 'lesssim'=>'8818', 'LessSlantEqual'=>'10877', 'LessTilde'=>'8818', 'lfisht'=>'10620', 'Lfr'=>'120079', 'lfr'=>'120105', 'lg'=>'8822', 'lgE'=>'10897', 'lHar'=>'10594', 'lhard'=>'8637', 'lharu'=>'8636', 'lharul'=>'10602', 'lhblk'=>'9604', 'LJcy'=>'1033', 'ljcy'=>'1113', 'll'=>'8810', 'Ll'=>'8920', 'llarr'=>'8647', 'llcorner'=>'8990', 'Lleftarrow'=>'8666', 'llhard'=>'10603', 'lltri'=>'9722', 'Lmidot'=>'319', 'lmidot'=>'320', 'lmoust'=>'9136', 'lmoustache'=>'9136', 'lnap'=>'10889', 'lnapprox'=>'10889', 'lne'=>'10887', 'lnE'=>'8808', 'lneq'=>'10887', 'lneqq'=>'8808', 'lnsim'=>'8934', 'loang'=>'10220', 'loarr'=>'8701', 'lobrk'=>'10214', 'longleftarrow'=>'10229', 'LongLeftArrow'=>'10229', 'Longleftarrow'=>'10232', 'longleftrightarrow'=>'10231', 'LongLeftRightArrow'=>'10231', 'Longleftrightarrow'=>'10234', 'longmapsto'=>'10236', 'longrightarrow'=>'10230', 'LongRightArrow'=>'10230', 'Longrightarrow'=>'10233', 'looparrowleft'=>'8619', 'looparrowright'=>'8620', 'lopar'=>'10629', 'Lopf'=>'120131', 'lopf'=>'120157', 'loplus'=>'10797', 'lotimes'=>'10804', 'lowbar'=>'95', 'LowerLeftArrow'=>'8601', 'LowerRightArrow'=>'8600', 'lozenge'=>'9674', 'lozf'=>'10731', 'lpar'=>'40', 'lparlt'=>'10643', 'lrarr'=>'8646', 'lrcorner'=>'8991', 'lrhar'=>'8651', 'lrhard'=>'10605', 'lrtri'=>'8895', 'lscr'=>'120001', 'Lscr'=>'8466', 'lsh'=>'8624', 'Lsh'=>'8624', 'lsim'=>'8818', 'lsime'=>'10893', 'lsimg'=>'10895', 'lsqb'=>'91', 'lsquor'=>'8218', 'Lstrok'=>'321', 'lstrok'=>'322', 'Lt'=>'8810', 'ltcc'=>'10918', 'ltcir'=>'10873', 'ltdot'=>'8918', 'lthree'=>'8907', 'ltimes'=>'8905', 'ltlarr'=>'10614', 'ltquest'=>'10875', 'ltri'=>'9667', 'ltrie'=>'8884', 'ltrif'=>'9666', 'ltrPar'=>'10646', 'lurdshar'=>'10570', 'luruhar'=>'10598', 'male'=>'9794', 'malt'=>'10016', 'maltese'=>'10016', 'Map'=>'10501', 'map'=>'8614', 'mapsto'=>'8614', 'mapstodown'=>'8615', 'mapstoleft'=>'8612', 'mapstoup'=>'8613', 'marker'=>'9646', 'mcomma'=>'10793', 'Mcy'=>'1052', 'mcy'=>'1084', 'mDDot'=>'8762', 'measuredangle'=>'8737', 'MediumSpace'=>'8287', 'Mellintrf'=>'8499', 'Mfr'=>'120080', 'mfr'=>'120106', 'mho'=>'8487', 'mid'=>'8739', 'midast'=>'42', 'midcir'=>'10992', 'minusb'=>'8863', 'minusd'=>'8760', 'minusdu'=>'10794', 'MinusPlus'=>'8723', 'mlcp'=>'10971', 'mldr'=>'8230', 'mnplus'=>'8723', 'models'=>'8871', 'Mopf'=>'120132', 'mopf'=>'120158', 'mp'=>'8723', 'mscr'=>'120002', 'Mscr'=>'8499', 'mstpos'=>'8766', 'multimap'=>'8888', 'mumap'=>'8888', 'Nacute'=>'323', 'nacute'=>'324', 'nap'=>'8777', 'napos'=>'329', 'napprox'=>'8777', 'natur'=>'9838', 'natural'=>'9838', 'naturals'=>'8469', 'ncap'=>'10819', 'Ncaron'=>'327', 'ncaron'=>'328', 'Ncedil'=>'325', 'ncedil'=>'326', 'ncong'=>'8775', 'ncup'=>'10818', 'Ncy'=>'1053', 'ncy'=>'1085', 'nearhk'=>'10532', 'nearr'=>'8599', 'neArr'=>'8663', 'nearrow'=>'8599', 'NegativeMediumSpace'=>'8203', 'NegativeThickSpace'=>'8203', 'NegativeThinSpace'=>'8203', 'NegativeVeryThinSpace'=>'8203', 'nequiv'=>'8802', 'nesear'=>'10536', 'NestedGreaterGreater'=>'8811', 'NestedLessLess'=>'8810', 'NewLine'=>'10', 'nexist'=>'8708', 'nexists'=>'8708', 'Nfr'=>'120081', 'nfr'=>'120107', 'nge'=>'8817', 'ngeq'=>'8817', 'ngsim'=>'8821', 'ngt'=>'8815', 'ngtr'=>'8815', 'nharr'=>'8622', 'nhArr'=>'8654', 'nhpar'=>'10994', 'nis'=>'8956', 'nisd'=>'8954', 'niv'=>'8715', 'NJcy'=>'1034', 'njcy'=>'1114', 'nlarr'=>'8602', 'nlArr'=>'8653', 'nldr'=>'8229', 'nle'=>'8816', 'nleftarrow'=>'8602', 'nLeftarrow'=>'8653', 'nleftrightarrow'=>'8622', 'nLeftrightarrow'=>'8654', 'nleq'=>'8816', 'nless'=>'8814', 'nlsim'=>'8820', 'nlt'=>'8814', 'nltri'=>'8938', 'nltrie'=>'8940', 'nmid'=>'8740', 'NoBreak'=>'8288', 'NonBreakingSpace'=>'160', 'nopf'=>'120159', 'Nopf'=>'8469', 'Not'=>'10988', 'NotCongruent'=>'8802', 'NotCupCap'=>'8813', 'NotDoubleVerticalBar'=>'8742', 'NotElement'=>'8713', 'NotEqual'=>'8800', 'NotExists'=>'8708', 'NotGreater'=>'8815', 'NotGreaterEqual'=>'8817', 'NotGreaterLess'=>'8825', 'NotGreaterTilde'=>'8821', 'notinva'=>'8713', 'notinvb'=>'8951', 'notinvc'=>'8950', 'NotLeftTriangle'=>'8938', 'NotLeftTriangleEqual'=>'8940', 'NotLess'=>'8814', 'NotLessEqual'=>'8816', 'NotLessGreater'=>'8824', 'NotLessTilde'=>'8820', 'notni'=>'8716', 'notniva'=>'8716', 'notnivb'=>'8958', 'notnivc'=>'8957', 'NotPrecedes'=>'8832', 'NotPrecedesSlantEqual'=>'8928', 'NotReverseElement'=>'8716', 'NotRightTriangle'=>'8939', 'NotRightTriangleEqual'=>'8941', 'NotSquareSubsetEqual'=>'8930', 'NotSquareSupersetEqual'=>'8931', 'NotSubsetEqual'=>'8840', 'NotSucceeds'=>'8833', 'NotSucceedsSlantEqual'=>'8929', 'NotSupersetEqual'=>'8841', 'NotTilde'=>'8769', 'NotTildeEqual'=>'8772', 'NotTildeFullEqual'=>'8775', 'NotTildeTilde'=>'8777', 'NotVerticalBar'=>'8740', 'npar'=>'8742', 'nparallel'=>'8742', 'npolint'=>'10772', 'npr'=>'8832', 'nprcue'=>'8928', 'nprec'=>'8832', 'nrarr'=>'8603', 'nrArr'=>'8655', 'nrightarrow'=>'8603', 'nRightarrow'=>'8655', 'nrtri'=>'8939', 'nrtrie'=>'8941', 'nsc'=>'8833', 'nsccue'=>'8929', 'Nscr'=>'119977', 'nscr'=>'120003', 'nshortmid'=>'8740', 'nshortparallel'=>'8742', 'nsim'=>'8769', 'nsime'=>'8772', 'nsimeq'=>'8772', 'nsmid'=>'8740', 'nspar'=>'8742', 'nsqsube'=>'8930', 'nsqsupe'=>'8931', 'nsube'=>'8840', 'nsubseteq'=>'8840', 'nsucc'=>'8833', 'nsup'=>'8837', 'nsupe'=>'8841', 'nsupseteq'=>'8841', 'ntgl'=>'8825', 'ntlg'=>'8824', 'ntriangleleft'=>'8938', 'ntrianglelefteq'=>'8940', 'ntriangleright'=>'8939', 'ntrianglerighteq'=>'8941', 'num'=>'35', 'numero'=>'8470', 'numsp'=>'8199', 'nvdash'=>'8876', 'nvDash'=>'8877', 'nVdash'=>'8878', 'nVDash'=>'8879', 'nvHarr'=>'10500', 'nvinfin'=>'10718', 'nvlArr'=>'10498', 'nvrArr'=>'10499', 'nwarhk'=>'10531', 'nwarr'=>'8598', 'nwArr'=>'8662', 'nwarrow'=>'8598', 'nwnear'=>'10535', 'oast'=>'8859', 'ocir'=>'8858', 'Ocy'=>'1054', 'ocy'=>'1086', 'odash'=>'8861', 'Odblac'=>'336', 'odblac'=>'337', 'odiv'=>'10808', 'odot'=>'8857', 'odsold'=>'10684', 'ofcir'=>'10687', 'Ofr'=>'120082', 'ofr'=>'120108', 'ogon'=>'731', 'ogt'=>'10689', 'ohbar'=>'10677', 'ohm'=>'937', 'oint'=>'8750', 'olarr'=>'8634', 'olcir'=>'10686', 'olcross'=>'10683', 'olt'=>'10688', 'Omacr'=>'332', 'omacr'=>'333', 'omid'=>'10678', 'ominus'=>'8854', 'Oopf'=>'120134', 'oopf'=>'120160', 'opar'=>'10679', 'OpenCurlyDoubleQuote'=>'8220', 'OpenCurlyQuote'=>'8216', 'operp'=>'10681', 'Or'=>'10836', 'orarr'=>'8635', 'ord'=>'10845', 'order'=>'8500', 'orderof'=>'8500', 'origof'=>'8886', 'oror'=>'10838', 'orslope'=>'10839', 'orv'=>'10843', 'oS'=>'9416', 'Oscr'=>'119978', 'oscr'=>'8500', 'osol'=>'8856', 'Otimes'=>'10807', 'otimesas'=>'10806', 'ovbar'=>'9021', 'OverBar'=>'8254', 'OverBrace'=>'9182', 'OverBracket'=>'9140', 'OverParenthesis'=>'9180', 'par'=>'8741', 'parallel'=>'8741', 'parsim'=>'10995', 'parsl'=>'11005', 'PartialD'=>'8706', 'Pcy'=>'1055', 'pcy'=>'1087', 'percnt'=>'37', 'period'=>'46', 'pertenk'=>'8241', 'Pfr'=>'120083', 'pfr'=>'120109', 'phiv'=>'981', 'phmmat'=>'8499', 'phone'=>'9742', 'pitchfork'=>'8916', 'planck'=>'8463', 'planckh'=>'8462', 'plankv'=>'8463', 'plus'=>'43', 'plusacir'=>'10787', 'plusb'=>'8862', 'pluscir'=>'10786', 'plusdo'=>'8724', 'plusdu'=>'10789', 'pluse'=>'10866', 'PlusMinus'=>'177', 'plussim'=>'10790', 'plustwo'=>'10791', 'pm'=>'177', 'Poincareplane'=>'8460', 'pointint'=>'10773', 'popf'=>'120161', 'Popf'=>'8473', 'Pr'=>'10939', 'pr'=>'8826', 'prap'=>'10935', 'prcue'=>'8828', 'pre'=>'10927', 'prE'=>'10931', 'prec'=>'8826', 'precapprox'=>'10935', 'preccurlyeq'=>'8828', 'Precedes'=>'8826', 'PrecedesEqual'=>'10927', 'PrecedesSlantEqual'=>'8828', 'PrecedesTilde'=>'8830', 'preceq'=>'10927', 'precnapprox'=>'10937', 'precneqq'=>'10933', 'precnsim'=>'8936', 'precsim'=>'8830', 'primes'=>'8473', 'prnap'=>'10937', 'prnE'=>'10933', 'prnsim'=>'8936', 'Product'=>'8719', 'profalar'=>'9006', 'profline'=>'8978', 'profsurf'=>'8979', 'Proportion'=>'8759', 'Proportional'=>'8733', 'propto'=>'8733', 'prsim'=>'8830', 'prurel'=>'8880', 'Pscr'=>'119979', 'pscr'=>'120005', 'puncsp'=>'8200', 'Qfr'=>'120084', 'qfr'=>'120110', 'qint'=>'10764', 'qopf'=>'120162', 'Qopf'=>'8474', 'qprime'=>'8279', 'Qscr'=>'119980', 'qscr'=>'120006', 'quaternions'=>'8461', 'quatint'=>'10774', 'quest'=>'63', 'questeq'=>'8799', 'rAarr'=>'8667', 'Racute'=>'340', 'racute'=>'341', 'raemptyv'=>'10675', 'rang'=>'10217', 'Rang'=>'10219', 'rangd'=>'10642', 'range'=>'10661', 'rangle'=>'10217', 'Rarr'=>'8608', 'rarrap'=>'10613', 'rarrb'=>'8677', 'rarrbfs'=>'10528', 'rarrc'=>'10547', 'rarrfs'=>'10526', 'rarrhk'=>'8618', 'rarrlp'=>'8620', 'rarrpl'=>'10565', 'rarrsim'=>'10612', 'Rarrtl'=>'10518', 'rarrtl'=>'8611', 'rarrw'=>'8605', 'ratail'=>'10522', 'rAtail'=>'10524', 'ratio'=>'8758', 'rationals'=>'8474', 'rbarr'=>'10509', 'rBarr'=>'10511', 'RBarr'=>'10512', 'rbbrk'=>'10099', 'rbrace'=>'125', 'rbrack'=>'93', 'rbrke'=>'10636', 'rbrksld'=>'10638', 'rbrkslu'=>'10640', 'Rcaron'=>'344', 'rcaron'=>'345', 'Rcedil'=>'342', 'rcedil'=>'343', 'rcub'=>'125', 'Rcy'=>'1056', 'rcy'=>'1088', 'rdca'=>'10551', 'rdldhar'=>'10601', 'rdquor'=>'8221', 'rdsh'=>'8627', 'Re'=>'8476', 'realine'=>'8475', 'realpart'=>'8476', 'reals'=>'8477', 'rect'=>'9645', 'REG'=>'174', 'ReverseElement'=>'8715', 'ReverseEquilibrium'=>'8651', 'ReverseUpEquilibrium'=>'10607', 'rfisht'=>'10621', 'rfr'=>'120111', 'Rfr'=>'8476', 'rHar'=>'10596', 'rhard'=>'8641', 'rharu'=>'8640', 'rharul'=>'10604', 'rhov'=>'1009', 'RightAngleBracket'=>'10217', 'rightarrow'=>'8594', 'RightArrow'=>'8594', 'Rightarrow'=>'8658', 'RightArrowBar'=>'8677', 'RightArrowLeftArrow'=>'8644', 'rightarrowtail'=>'8611', 'RightCeiling'=>'8969', 'RightDoubleBracket'=>'10215', 'RightDownTeeVector'=>'10589', 'RightDownVector'=>'8642', 'RightDownVectorBar'=>'10581', 'RightFloor'=>'8971', 'rightharpoondown'=>'8641', 'rightharpoonup'=>'8640', 'rightleftarrows'=>'8644', 'rightleftharpoons'=>'8652', 'rightrightarrows'=>'8649', 'rightsquigarrow'=>'8605', 'RightTee'=>'8866', 'RightTeeArrow'=>'8614', 'RightTeeVector'=>'10587', 'rightthreetimes'=>'8908', 'RightTriangle'=>'8883', 'RightTriangleBar'=>'10704', 'RightTriangleEqual'=>'8885', 'RightUpDownVector'=>'10575', 'RightUpTeeVector'=>'10588', 'RightUpVector'=>'8638', 'RightUpVectorBar'=>'10580', 'RightVector'=>'8640', 'RightVectorBar'=>'10579', 'ring'=>'730', 'risingdotseq'=>'8787', 'rlarr'=>'8644', 'rlhar'=>'8652', 'rmoust'=>'9137', 'rmoustache'=>'9137', 'rnmid'=>'10990', 'roang'=>'10221', 'roarr'=>'8702', 'robrk'=>'10215', 'ropar'=>'10630', 'ropf'=>'120163', 'Ropf'=>'8477', 'roplus'=>'10798', 'rotimes'=>'10805', 'RoundImplies'=>'10608', 'rpar'=>'41', 'rpargt'=>'10644', 'rppolint'=>'10770', 'rrarr'=>'8649', 'Rrightarrow'=>'8667', 'rscr'=>'120007', 'Rscr'=>'8475', 'rsh'=>'8625', 'Rsh'=>'8625', 'rsqb'=>'93', 'rsquor'=>'8217', 'rthree'=>'8908', 'rtimes'=>'8906', 'rtri'=>'9657', 'rtrie'=>'8885', 'rtrif'=>'9656', 'rtriltri'=>'10702', 'RuleDelayed'=>'10740', 'ruluhar'=>'10600', 'rx'=>'8478', 'Sacute'=>'346', 'sacute'=>'347', 'Sc'=>'10940', 'sc'=>'8827', 'scap'=>'10936', 'sccue'=>'8829', 'sce'=>'10928', 'scE'=>'10932', 'Scedil'=>'350', 'scedil'=>'351', 'Scirc'=>'348', 'scirc'=>'349', 'scnap'=>'10938', 'scnE'=>'10934', 'scnsim'=>'8937', 'scpolint'=>'10771', 'scsim'=>'8831', 'Scy'=>'1057', 'scy'=>'1089', 'sdotb'=>'8865', 'sdote'=>'10854', 'searhk'=>'10533', 'searr'=>'8600', 'seArr'=>'8664', 'searrow'=>'8600', 'semi'=>'59', 'seswar'=>'10537', 'setminus'=>'8726', 'setmn'=>'8726', 'sext'=>'10038', 'Sfr'=>'120086', 'sfr'=>'120112', 'sfrown'=>'8994', 'sharp'=>'9839', 'SHCHcy'=>'1065', 'shchcy'=>'1097', 'SHcy'=>'1064', 'shcy'=>'1096', 'ShortDownArrow'=>'8595', 'ShortLeftArrow'=>'8592', 'shortmid'=>'8739', 'shortparallel'=>'8741', 'ShortRightArrow'=>'8594', 'ShortUpArrow'=>'8593', 'sigmav'=>'962', 'simdot'=>'10858', 'sime'=>'8771', 'simeq'=>'8771', 'simg'=>'10910', 'simgE'=>'10912', 'siml'=>'10909', 'simlE'=>'10911', 'simne'=>'8774', 'simplus'=>'10788', 'simrarr'=>'10610', 'slarr'=>'8592', 'SmallCircle'=>'8728', 'smallsetminus'=>'8726', 'smashp'=>'10803', 'smeparsl'=>'10724', 'smid'=>'8739', 'smile'=>'8995', 'smt'=>'10922', 'smte'=>'10924', 'SOFTcy'=>'1068', 'softcy'=>'1100', 'sol'=>'47', 'solb'=>'10692', 'solbar'=>'9023', 'Sopf'=>'120138', 'sopf'=>'120164', 'spadesuit'=>'9824', 'spar'=>'8741', 'sqcap'=>'8851', 'sqcup'=>'8852', 'Sqrt'=>'8730', 'sqsub'=>'8847', 'sqsube'=>'8849', 'sqsubset'=>'8847', 'sqsubseteq'=>'8849', 'sqsup'=>'8848', 'sqsupe'=>'8850', 'sqsupset'=>'8848', 'sqsupseteq'=>'8850', 'squ'=>'9633', 'square'=>'9633', 'Square'=>'9633', 'SquareIntersection'=>'8851', 'SquareSubset'=>'8847', 'SquareSubsetEqual'=>'8849', 'SquareSuperset'=>'8848', 'SquareSupersetEqual'=>'8850', 'SquareUnion'=>'8852', 'squarf'=>'9642', 'squf'=>'9642', 'srarr'=>'8594', 'Sscr'=>'119982', 'sscr'=>'120008', 'ssetmn'=>'8726', 'ssmile'=>'8995', 'sstarf'=>'8902', 'Star'=>'8902', 'star'=>'9734', 'starf'=>'9733', 'straightepsilon'=>'1013', 'straightphi'=>'981', 'strns'=>'175', 'Sub'=>'8912', 'subdot'=>'10941', 'subE'=>'10949', 'subedot'=>'10947', 'submult'=>'10945', 'subnE'=>'10955', 'subne'=>'8842', 'subplus'=>'10943', 'subrarr'=>'10617', 'subset'=>'8834', 'Subset'=>'8912', 'subseteq'=>'8838', 'subseteqq'=>'10949', 'SubsetEqual'=>'8838', 'subsetneq'=>'8842', 'subsetneqq'=>'10955', 'subsim'=>'10951', 'subsub'=>'10965', 'subsup'=>'10963', 'succ'=>'8827', 'succapprox'=>'10936', 'succcurlyeq'=>'8829', 'Succeeds'=>'8827', 'SucceedsEqual'=>'10928', 'SucceedsSlantEqual'=>'8829', 'SucceedsTilde'=>'8831', 'succeq'=>'10928', 'succnapprox'=>'10938', 'succneqq'=>'10934', 'succnsim'=>'8937', 'succsim'=>'8831', 'SuchThat'=>'8715', 'Sum'=>'8721', 'sung'=>'9834', 'Sup'=>'8913', 'supdot'=>'10942', 'supdsub'=>'10968', 'supE'=>'10950', 'supedot'=>'10948', 'Superset'=>'8835', 'SupersetEqual'=>'8839', 'suphsol'=>'10185', 'suphsub'=>'10967', 'suplarr'=>'10619', 'supmult'=>'10946', 'supnE'=>'10956', 'supne'=>'8843', 'supplus'=>'10944', 'supset'=>'8835', 'Supset'=>'8913', 'supseteq'=>'8839', 'supseteqq'=>'10950', 'supsetneq'=>'8843', 'supsetneqq'=>'10956', 'supsim'=>'10952', 'supsub'=>'10964', 'supsup'=>'10966', 'swarhk'=>'10534', 'swarr'=>'8601', 'swArr'=>'8665', 'swarrow'=>'8601', 'swnwar'=>'10538', 'Tab'=>'9', 'target'=>'8982', 'tbrk'=>'9140', 'Tcaron'=>'356', 'tcaron'=>'357', 'Tcedil'=>'354', 'tcedil'=>'355', 'Tcy'=>'1058', 'tcy'=>'1090', 'tdot'=>'8411', 'telrec'=>'8981', 'Tfr'=>'120087', 'tfr'=>'120113', 'therefore'=>'8756', 'Therefore'=>'8756', 'thetav'=>'977', 'thickapprox'=>'8776', 'thicksim'=>'8764', 'ThinSpace'=>'8201', 'thkap'=>'8776', 'thksim'=>'8764', 'Tilde'=>'8764', 'TildeEqual'=>'8771', 'TildeFullEqual'=>'8773', 'TildeTilde'=>'8776', 'timesb'=>'8864', 'timesbar'=>'10801', 'timesd'=>'10800', 'tint'=>'8749', 'toea'=>'10536', 'top'=>'8868', 'topbot'=>'9014', 'topcir'=>'10993', 'Topf'=>'120139', 'topf'=>'120165', 'topfork'=>'10970', 'tosa'=>'10537', 'tprime'=>'8244', 'TRADE'=>'8482', 'triangle'=>'9653', 'triangledown'=>'9663', 'triangleleft'=>'9667', 'trianglelefteq'=>'8884', 'triangleq'=>'8796', 'triangleright'=>'9657', 'trianglerighteq'=>'8885', 'tridot'=>'9708', 'trie'=>'8796', 'triminus'=>'10810', 'TripleDot'=>'8411', 'triplus'=>'10809', 'trisb'=>'10701', 'tritime'=>'10811', 'trpezium'=>'9186', 'Tscr'=>'119983', 'tscr'=>'120009', 'TScy'=>'1062', 'tscy'=>'1094', 'TSHcy'=>'1035', 'tshcy'=>'1115', 'Tstrok'=>'358', 'tstrok'=>'359', 'twixt'=>'8812', 'twoheadleftarrow'=>'8606', 'twoheadrightarrow'=>'8608', 'Uarr'=>'8607', 'Uarrocir'=>'10569', 'Ubrcy'=>'1038', 'ubrcy'=>'1118', 'Ubreve'=>'364', 'ubreve'=>'365', 'Ucy'=>'1059', 'ucy'=>'1091', 'udarr'=>'8645', 'Udblac'=>'368', 'udblac'=>'369', 'udhar'=>'10606', 'ufisht'=>'10622', 'Ufr'=>'120088', 'ufr'=>'120114', 'uHar'=>'10595', 'uharl'=>'8639', 'uharr'=>'8638', 'uhblk'=>'9600', 'ulcorn'=>'8988', 'ulcorner'=>'8988', 'ulcrop'=>'8975', 'ultri'=>'9720', 'Umacr'=>'362', 'umacr'=>'363', 'UnderBar'=>'95', 'UnderBrace'=>'9183', 'UnderBracket'=>'9141', 'UnderParenthesis'=>'9181', 'Union'=>'8899', 'UnionPlus'=>'8846', 'Uogon'=>'370', 'uogon'=>'371', 'Uopf'=>'120140', 'uopf'=>'120166', 'uparrow'=>'8593', 'UpArrow'=>'8593', 'Uparrow'=>'8657', 'UpArrowBar'=>'10514', 'UpArrowDownArrow'=>'8645', 'updownarrow'=>'8597', 'UpDownArrow'=>'8597', 'Updownarrow'=>'8661', 'UpEquilibrium'=>'10606', 'upharpoonleft'=>'8639', 'upharpoonright'=>'8638', 'uplus'=>'8846', 'UpperLeftArrow'=>'8598', 'UpperRightArrow'=>'8599', 'upsi'=>'965', 'Upsi'=>'978', 'UpTee'=>'8869', 'UpTeeArrow'=>'8613', 'upuparrows'=>'8648', 'urcorn'=>'8989', 'urcorner'=>'8989', 'urcrop'=>'8974', 'Uring'=>'366', 'uring'=>'367', 'urtri'=>'9721', 'Uscr'=>'119984', 'uscr'=>'120010', 'utdot'=>'8944', 'Utilde'=>'360', 'utilde'=>'361', 'utri'=>'9653', 'utrif'=>'9652', 'uuarr'=>'8648', 'uwangle'=>'10663', 'vangrt'=>'10652', 'varepsilon'=>'1013', 'varkappa'=>'1008', 'varnothing'=>'8709', 'varphi'=>'981', 'varpi'=>'982', 'varpropto'=>'8733', 'varr'=>'8597', 'vArr'=>'8661', 'varrho'=>'1009', 'varsigma'=>'962', 'vartheta'=>'977', 'vartriangleleft'=>'8882', 'vartriangleright'=>'8883', 'vBar'=>'10984', 'Vbar'=>'10987', 'vBarv'=>'10985', 'Vcy'=>'1042', 'vcy'=>'1074', 'vdash'=>'8866', 'vDash'=>'8872', 'Vdash'=>'8873', 'VDash'=>'8875', 'Vdashl'=>'10982', 'vee'=>'8744', 'Vee'=>'8897', 'veebar'=>'8891', 'veeeq'=>'8794', 'vellip'=>'8942', 'verbar'=>'124', 'Verbar'=>'8214', 'vert'=>'124', 'Vert'=>'8214', 'VerticalBar'=>'8739', 'VerticalLine'=>'124', 'VerticalSeparator'=>'10072', 'VerticalTilde'=>'8768', 'VeryThinSpace'=>'8202', 'Vfr'=>'120089', 'vfr'=>'120115', 'vltri'=>'8882', 'Vopf'=>'120141', 'vopf'=>'120167', 'vprop'=>'8733', 'vrtri'=>'8883', 'Vscr'=>'119985', 'vscr'=>'120011', 'Vvdash'=>'8874', 'vzigzag'=>'10650', 'Wcirc'=>'372', 'wcirc'=>'373', 'wedbar'=>'10847', 'wedge'=>'8743', 'Wedge'=>'8896', 'wedgeq'=>'8793', 'Wfr'=>'120090', 'wfr'=>'120116', 'Wopf'=>'120142', 'wopf'=>'120168', 'wp'=>'8472', 'wr'=>'8768', 'wreath'=>'8768', 'Wscr'=>'119986', 'wscr'=>'120012', 'xcap'=>'8898', 'xcirc'=>'9711', 'xcup'=>'8899', 'xdtri'=>'9661', 'Xfr'=>'120091', 'xfr'=>'120117', 'xharr'=>'10231', 'xhArr'=>'10234', 'xlarr'=>'10229', 'xlArr'=>'10232', 'xmap'=>'10236', 'xnis'=>'8955', 'xodot'=>'10752', 'Xopf'=>'120143', 'xopf'=>'120169', 'xoplus'=>'10753', 'xotime'=>'10754', 'xrarr'=>'10230', 'xrArr'=>'10233', 'Xscr'=>'119987', 'xscr'=>'120013', 'xsqcup'=>'10758', 'xuplus'=>'10756', 'xutri'=>'9651', 'xvee'=>'8897', 'xwedge'=>'8896', 'YAcy'=>'1071', 'yacy'=>'1103', 'Ycirc'=>'374', 'ycirc'=>'375', 'Ycy'=>'1067', 'ycy'=>'1099', 'Yfr'=>'120092', 'yfr'=>'120118', 'YIcy'=>'1031', 'yicy'=>'1111', 'Yopf'=>'120144', 'yopf'=>'120170', 'Yscr'=>'119988', 'yscr'=>'120014', 'YUcy'=>'1070', 'yucy'=>'1102', 'Zacute'=>'377', 'zacute'=>'378', 'Zcaron'=>'381', 'zcaron'=>'382', 'Zcy'=>'1047', 'zcy'=>'1079', 'Zdot'=>'379', 'zdot'=>'380', 'zeetrf'=>'8488', 'ZeroWidthSpace'=>'8203', 'zfr'=>'120119', 'Zfr'=>'8488', 'ZHcy'=>'1046', 'zhcy'=>'1078', 'zigrarr'=>'8669', 'zopf'=>'120171', 'Zopf'=>'8484', 'Zscr'=>'119989', 'zscr'=>'120015'); + if ($t[0] != '#') { + return + ($C['and_mark'] ? "\x06" : '&') + . (isset($reservedEntAr[$t]) + ? $t + : (isset($commonEntNameAr[$t]) + ? (!$C['named_entity'] + ? '#'. ($C['hexdec_entity'] > 1 + ? 'x'. dechex($commonEntNameAr[$t]) + : $commonEntNameAr[$t]) + : $t) + : (isset($rareEntNameAr[$t]) + ? (!$C['named_entity'] + ? '#'. ($C['hexdec_entity'] > 1 + ? 'x'. dechex($rareEntNameAr[$t]) + : $rareEntNameAr[$t]) + : $t) + : 'amp;'. $t))) + . ';'; + } + if ( + ($n = ctype_digit($t = substr($t, 1)) ? intval($t) : hexdec(substr($t, 1))) < 9 + || ($n > 13 && $n < 32) + || $n == 11 + || $n == 12 + || ($n > 126 && $n < 160 && $n != 133) + || ($n > 55295 + && ($n < 57344 + || ($n > 64975 && $n < 64992) + || $n == 65534 + || $n == 65535 + || $n > 1114111)) + ) { + return ($C['and_mark'] ? "\x06" : '&'). "amp;#{$t};"; + } + return + ($C['and_mark'] ? "\x06" : '&') + . '#' + . (((ctype_digit($t) && $C['hexdec_entity'] < 2) + || !$C['hexdec_entity']) + ? $n + : 'x'. dechex($n)) + . ';'; +} + +/** + * Check regex pattern for PHP error. + * + * @param string $t Pattern including limiters/modifiers. + * @return int 0 or 1 if pattern is invalid or valid, respectively. + */ +function hl_regex($t) +{ + if (empty($t) || !is_string($t)) { + return 0; + } + if ($funcsExist = function_exists('error_clear_last') && function_exists('error_get_last')) { + error_clear_last(); + } else { + if ($valTrackErr = ini_get('track_errors')) { + $valMsgErr = isset($php_errormsg) ? $php_errormsg : null; + } else { + ini_set('track_errors', '1'); + } + unset($php_errormsg); + } + if (($valShowErr = ini_get('display_errors'))) { + ini_set('display_errors', '0'); + } + preg_match($t, ''); + if ($funcsExist) { + $out = error_get_last() == null ? 1 : 0; + } else { + $out = isset($php_errormsg) ? 0 : 1; + if ($valTrackErr) { + $php_errormsg = isset($valMsgErr) ? $valMsgErr : null; + } else { + ini_set('track_errors', '0'); + } + } + if ($valShowErr) { + ini_set('display_errors', '1'); + } + return $out; +} + +/** + * Parse $spec htmLawed argument as array. + * + * @param string $t Value of $spec. + * @return array Multidimensional array of form: tag -> attribute -> rule. + */ +function hl_spec($t) +{ + $out = array(); + + // Hide special characters used for rules. + + if (!function_exists('hl_aux1')) { + function hl_aux1($x) { + return + substr( + str_replace( + array(";", "|", "~", " ", ",", "/", "(", ")", '`"'), + array("\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", "\x08", '"'), + $x[0]), + 1, -1); + } + } + $t = + str_replace( + array("\t", "\r", "\n", ' '), + '', + preg_replace_callback('/"(?>(`.|[^"])*)"/sm', 'hl_aux1', trim($t))); + + // Tag, attribute, and rule separators: semi-colon, comma, and slash respectively. + + for ($i = count(($t = explode(';', $t))); --$i>=0;) { + $ele = $t[$i]; + if ( + empty($ele) + || ($tagPos = strpos($ele, '=')) === false + || !strlen(($tagSpec = substr($ele, $tagPos + 1))) + ) { + continue; + } + $ruleAr = $denyAttrAr = array(); + foreach (explode(',', $tagSpec) as $v) { + if (!preg_match('`^(-?data-[^:=]+|[a-z:\-\*]+)(?:\((.*?)\))?`i', $v, $m) + || preg_match('`^-?data-xml`i', $m[1])) { + continue; + } + if (($attr = strtolower($m[1])) == '-*') { + $denyAttrAr['*'] = 1; + continue; + } + if ($attr[0] == '-') { + $denyAttrAr[substr($attr, 1)] = 1; + continue; + } + if (!isset($m[2])) { + $ruleAr[$attr] = 1; + continue; + } + foreach (explode('/', $m[2]) as $m) { + if (empty($m) + || ($rulePos = strpos($m, '=')) === 0 + || $rulePos < 5 // Shortest rule: oneof + ) { + $ruleAr[$attr] = 1; + continue; + } + $rule = strtolower(substr($m, 0, $rulePos)); + $ruleAr[$attr][$rule] = + str_replace( + array("\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", "\x08"), + array(";", "|", "~", " ", ",", "/", "(", ")"), + substr($m, $rulePos + 1)); + } + if (isset($ruleAr[$attr]['match']) && !hl_regex($ruleAr[$attr]['match'])) { + unset($ruleAr[$attr]['match']); + } + if (isset($ruleAr[$attr]['nomatch']) && !hl_regex($ruleAr[$attr]['nomatch'])) { + unset($ruleAr[$attr]['nomatch']); + } + } + + if (!count($ruleAr) && !count($denyAttrAr)) { + continue; + } + foreach (explode(',', substr($ele, 0, $tagPos)) as $tag) { + if (!strlen(($tag = strtolower($tag)))) { + continue; + } + if (count($ruleAr)) { + $out[$tag] = !isset($out[$tag]) ? $ruleAr : array_merge($out[$tag], $ruleAr); + } + if (count($denyAttrAr)) { + $out[$tag]['deny'] = !isset($out[$tag]['deny']) ? $denyAttrAr : array_merge($out[$tag]['deny'], $denyAttrAr); + } + } + } + + return $out; +} + +/** + * Handle tag text with limiters, and attributes in opening tags. + * + * @param array $t Array from preg_replace call. + * @return string Tag with any attribute, + * or text with neutralized into entities, or empty. + */ +function hl_tag($t) +{ + $t = $t[0]; + global $C; + + // Check if character not in tag. + + if ($t == '< ') { + return '< '; + } + if ($t == '>') { + return '>'; + } + if (!preg_match('`^<(/?)([a-zA-Z][^\s>]*)([^>]*?)\s?>$`m', $t, $m)) { // Get tag with element name and attributes + return str_replace(array('<', '>'), array('<', '>'), $t); + } + + // Check if element not permitted. Custom element names have certain requirements. + + $ele = rtrim(strtolower($m[2]), '/'); + static $invalidCustomEleAr = array('annotation-xml'=>1, 'color-profile'=>1, 'font-face'=>1, 'font-face-src'=>1, 'font-face-uri'=>1, 'font-face-format'=>1, 'font-face-name'=>1, 'missing-glyph'=>1); + if ( + (!strpos($ele, '-') + && !isset($C['elements'][$ele])) // Not custom element + || (strpos($ele, '-') + && (isset($C['elements']['-' . $ele]) + || (!$C['any_custom_element'] + && !isset($C['elements'][$ele])) + || isset($invalidCustomEleAr[$ele]) + || preg_match( + '`[^-._0-9a-z\xb7\xc0-\xd6\xd8-\xf6\xf8-\x{2ff}' + . '\x{370}-\x{37d}\x{37f}-\x{1fff}\x{200c}-\x{200d}\x{2070}-\x{218f}' + . '\x{2c00}-\x{2fef}\x{3001}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{fffd}\x{10000}-\x{effff}]`u' + , $ele))) + ) { + return (($C['keep_bad']%2) ? str_replace(array('<', '>'), array('<', '>'), $t) : ''); + } + + // Attribute string. + + $attrStr = str_replace(array("\n", "\r", "\t"), ' ', trim($m[3])); + + // Transform deprecated element. + + static $deprecatedEleAr = array('acronym'=>1, 'applet'=>1, 'big'=>1, 'center'=>1, 'dir'=>1, 'font'=>1, 'isindex'=>1, 's'=>1, 'strike'=>1, 'tt'=>1); + if ($C['make_tag_strict'] && isset($deprecatedEleAr[$ele])) { + $eleTransformed = hl_deprecatedElement($ele, $attrStr, $C['make_tag_strict']); // hl_deprecatedElement uses referencing + if (!$ele) { + return (($C['keep_bad'] % 2) ? str_replace(array('<', '>'), array('<', '>'), $t) : ''); + } + } + + // Handle closing tag. + + static $emptyEleAr = array('area'=>1, 'br'=>1, 'col'=>1, 'command'=>1, 'embed'=>1, 'hr'=>1, 'img'=>1, 'input'=>1, 'isindex'=>1, 'keygen'=>1, 'link'=>1, 'meta'=>1, 'param'=>1, 'source'=>1, 'track'=>1, 'wbr'=>1); + if (!empty($m[1])) { + return( + !isset($emptyEleAr[$ele]) + ? (empty($C['hook_tag']) + ? "" + : call_user_func($C['hook_tag'], $ele, 0)) + : ($C['keep_bad'] % 2 + ? str_replace(array('<', '>'), array('<', '>'), $t) + : '')); + } + + // Handle opening tag. + + // -- Sets of possible attributes. + + // .. Element-specific non-global. + + static $attrEleAr = 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, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>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, 'slot'=>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, 'dialog'=>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('img'=>1, 'link'=>1, 'source'=>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, 'link'=>1, 'source'=>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)); + + // .. Empty. + + static $emptyAttrAr = 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); + + // .. Global. + + static $globalAttrAr = array( + + // .... General. + + 'accesskey'=>1, 'autocapitalize'=>1, 'autofocus'=>1, 'class'=>1, 'contenteditable'=>1, 'contextmenu'=>1, 'dir'=>1, 'draggable'=>1, 'dropzone'=>1, 'enterkeyhint'=>1, 'hidden'=>1, 'id'=>1, 'inert'=>1, 'inputmode'=>1, 'is'=>1, 'itemid'=>1, 'itemprop'=>1, 'itemref'=>1, 'itemscope'=>1, 'itemtype'=>1, 'lang'=>1, 'nonce'=>1, 'role'=>1, 'slot'=>1, 'spellcheck'=>1, 'style'=>1, 'tabindex'=>1, 'title'=>1, 'translate'=>1, 'xmlns'=>1, 'xml:base'=>1, 'xml:lang'=>1, 'xml:space'=>1, + + // .... Event. + + 'onabort'=>1, 'onauxclick'=>1, 'onblur'=>1, 'oncancel'=>1, 'oncanplay'=>1, 'oncanplaythrough'=>1, 'onchange'=>1, 'onclick'=>1, 'onclose'=>1, 'oncontextlost'=>1, 'oncontextmenu'=>1, 'oncontextrestored'=>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, 'onformdata'=>1, 'onforminput'=>1, 'ongotpointercapture'=>1, 'oninput'=>1, 'oninvalid'=>1, 'onkeydown'=>1, 'onkeypress'=>1, 'onkeyup'=>1, 'onload'=>1, 'onloadeddata'=>1, 'onloadedmetadata'=>1, 'onloadend'=>1, 'onloadstart'=>1, 'onlostpointercapture'=>1, 'onmousedown'=>1, 'onmouseenter'=>1, 'onmouseleave'=>1, 'onmousemove'=>1, 'onmouseout'=>1, 'onmouseover'=>1, 'onmouseup'=>1, 'onmousewheel'=>1, 'onpaste'=>1, 'onpause'=>1, 'onplay'=>1, 'onplaying'=>1, 'onpointercancel'=>1, 'onpointerdown'=>1, 'onpointerenter'=>1, 'onpointerleave'=>1, 'onpointermove'=>1, 'onpointerout'=>1, 'onpointerover'=>1, 'onpointerup'=>1, 'onprogress'=>1, 'onratechange'=>1, 'onreadystatechange'=>1, 'onreset'=>1, 'onresize'=>1, 'onscroll'=>1, 'onsearch'=>1, 'onsecuritypolicyviolation'=>1, 'onseeked'=>1, 'onseeking'=>1, 'onselect'=>1, 'onshow'=>1, 'onslotchange'=>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, + + // .... Aria. + + 'aria-activedescendant'=>1, 'aria-atomic'=>1, 'aria-autocomplete'=>1, 'aria-braillelabel'=>1, 'aria-brailleroledescription'=>1, 'aria-busy'=>1, 'aria-checked'=>1, 'aria-colcount'=>1, 'aria-colindex'=>1, 'aria-colindextext'=>1, 'aria-colspan'=>1, 'aria-controls'=>1, 'aria-current'=>1, 'aria-describedby'=>1, 'aria-description'=>1, 'aria-details'=>1, 'aria-disabled'=>1, 'aria-dropeffect'=>1, 'aria-errormessage'=>1, 'aria-expanded'=>1, 'aria-flowto'=>1, 'aria-grabbed'=>1, 'aria-haspopup'=>1, 'aria-hidden'=>1, 'aria-invalid'=>1, 'aria-keyshortcuts'=>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-placeholder'=>1, 'aria-posinset'=>1, 'aria-pressed'=>1, 'aria-readonly'=>1, 'aria-relevant'=>1, 'aria-required'=>1, 'aria-roledescription'=>1, 'aria-rowcount'=>1, 'aria-rowindex'=>1, 'aria-rowindextext'=>1, 'aria-rowspan'=>1, 'aria-selected'=>1, 'aria-setsize'=>1, 'aria-sort'=>1, 'aria-valuemax'=>1, 'aria-valuemin'=>1, 'aria-valuenow'=>1, 'aria-valuetext'=>1); + + static $urlAttrAr = array('action'=>1, 'archive'=>1, 'cite'=>1, 'classid'=>1, 'codebase'=>1, 'data'=>1, 'formaction'=>1, 'href'=>1, 'itemtype'=>1, 'longdesc'=>1, 'model'=>1, 'pluginspage'=>1, 'pluginurl'=>1, 'poster'=>1, 'src'=>1, 'srcset'=>1, 'usemap'=>1); // Excludes style and on* + + // .. Deprecated. + + $alterDeprecAttr = 0; + if ($C['no_deprecated_attr']) { + static $deprecAttrEleAr = 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, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>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 $deprecAttrPossibleEleAr = 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); + $alterDeprecAttr = isset($deprecAttrPossibleEleAr[$ele]) ? 1 : 0; + } + + // -- Standard attribute values that may need lowercasing. + + if ($C['lc_std_val']) { + static $lCaseStdAttrValAr = 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 $lCaseStdAttrValPossibleEleAr = 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); + $lCaseStdAttrVal = isset($lCaseStdAttrValPossibleEleAr[$ele]) ? 1 : 0; + } + + // -- Get attribute name-value pairs. + + if (strpos($attrStr, "\x01") !== false) { // Remove CDATA/comment + $attrStr = preg_replace('`\x01[^\x01]*\x01`', '', $attrStr); + } + $attrStr = trim($attrStr, ' /'); + $attrAr = array(); + $state = 0; + while (strlen($attrStr)) { + $ok = 0; // For parsing errors, to deal with space, ", and ' characters + switch ($state) { + case 0: if (preg_match('`^[^=\s/\x7f-\x9f]+`', $attrStr, $m)) { // Name + $attr = strtolower($m[0]); + $ok = $state = 1; + $attrStr = ltrim(substr_replace($attrStr, '', 0, strlen($m[0]))); + } + break; case 1: if ($attrStr[0] == '=') { + $ok = 1; + $state = 2; + $attrStr = ltrim($attrStr, '= '); + } else { // No value + $ok = 1; + $state = 0; + $attrStr = ltrim($attrStr); + $attrAr[$attr] = ''; + } + break; case 2: if (preg_match('`^((?:"[^"]*")|(?:\'[^\']*\')|(?:\s*[^\s"\']+))(.*)`', $attrStr, $m)) { // Value + $attrStr = ltrim($m[2]); + $m = $m[1]; + $ok = 1; + $state = 0; + $attrAr[$attr] = + trim( + str_replace('<', '<', + ($m[0] == '"' || $m[0] == '\'') + ? substr($m, 1, -1) + : $m)); + } + break; + } + if (!$ok) { + $attrStr = preg_replace('`^(?:"[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*`', '', $attrStr); + $state = 0; + } + } + if ($state == 1) { + $attrAr[$attr] = ''; + } + + // -- Clean attributes. + + global $S; + $eleSpec = isset($S[$ele]) ? $S[$ele] : array(); + $filtAttrAr = array(); // Finalized attributes + $deniedAttrAr = $C['deny_attribute']; + + foreach ($attrAr as $attr=>$v) { + + // .. Check if attribute is permitted. + + if ( + + // .... Valid attribute. + + ((isset($attrEleAr[$attr][$ele]) + || isset($globalAttrAr[$attr]) + || preg_match('`data-((?!xml)[^:]+$)`', $attr) + || (strpos($ele, '-') + && strpos($attr, 'data-xml') !== 0)) + + // .... No denial through $spec. + + && (empty($eleSpec) + || (!isset($eleSpec['deny']) + || (!isset($eleSpec['deny']['*']) + && !isset($eleSpec['deny'][$attr]) + && !isset($eleSpec['deny'][preg_replace('`^(on|aria|data).+`', '\\1', $attr). '*'])))) + + // .... No denial through $config. + + && (empty($deniedAttrAr) + || (isset($deniedAttrAr['*']) + ? (isset($deniedAttrAr["-$attr"]) + || isset($deniedAttrAr['-'. preg_replace('`^(on|aria|data)..+`', '\\1', $attr). '*'])) + : (!isset($deniedAttrAr[$attr]) + && !isset($deniedAttrAr[preg_replace('`^(on|aria|data).+`', '\\1', $attr). '*']))))) + + // .... Permit if permission through $spec. + + || (!empty($eleSpec) + && (isset($eleSpec[$attr]) + || (isset($globalAttrAr[$attr]) + && isset($eleSpec[preg_replace('`^(on|aria|data).+`', '\\1', $attr). '*'])))) + ) { + + // .. Attribute with no value or standard value. + + if (isset($emptyAttrAr[$attr])) { + $v = $attr; + } elseif ( + !empty($lCaseStdAttrVal) // ! Rather loose but should be ok + && (($ele != 'button' || $ele != 'input') + || $attr == 'type') + ) { + $v = (isset($lCaseStdAttrValAr[($vNew = strtolower($v))])) ? $vNew : $v; + } + + // .. URLs and CSS expressions in style attribute. + + if ($attr == 'style' && !$C['style_pass']) { + if (false !== strpos($v, '&#')) { // Change any entity to character + static $entityAr = array(' '=>' ', ' '=>' ', ':'=>':', ':'=>':', '"'=>'"', '"'=>'"', '('=>'(', '('=>'(', ')'=>')', ')'=>')', '*'=>'*', '*'=>'*', '/'=>'/', '/'=>'/', '\'=>'\\', '\'=>'\\', 'e'=>'e', 'E'=>'e', 'E'=>'e', 'e'=>'e', 'i'=>'i', 'I'=>'i', 'I'=>'i', 'i'=>'i', 'l'=>'l', 'L'=>'l', 'L'=>'l', 'l'=>'l', 'n'=>'n', 'N'=>'n', 'N'=>'n', 'n'=>'n', 'o'=>'o', 'O'=>'o', 'O'=>'o', 'o'=>'o', 'p'=>'p', 'P'=>'p', 'P'=>'p', 'p'=>'p', 'r'=>'r', 'R'=>'r', 'R'=>'r', 'r'=>'r', 's'=>'s', 'S'=>'s', 'S'=>'s', 's'=>'s', 'u'=>'u', 'U'=>'u', 'U'=>'u', 'u'=>'u', 'x'=>'x', 'X'=>'x', 'X'=>'x', 'x'=>'x', '''=>"'", '''=>"'"); + $v = strtr($v, $entityAr); + } + $v = + preg_replace_callback( + '`(url(?:\()(?: )*(?:\'|"|&(?:quot|apos);)?)(.+?)((?:\'|"|&(?:quot|apos);)?(?: )*(?:\)))`iS', + 'hl_url', + $v); + $v = !$C['css_expression'] + ? preg_replace('`expression`i', ' ', preg_replace('`\\\\\S|(/|(%2f))(\*|(%2a))`i', ' ', $v)) + : $v; + + // .. URLs in other attributes. + + } elseif (isset($urlAttrAr[$attr]) || (isset($globalAttrAr[$attr]) && strpos($attr, 'on') === 0)) { + $v = + str_replace("­", ' ', + (strpos($v, '&') !== false // ! Double-quoted character = soft-hyphen + ? str_replace(array('­', '­', '­'), ' ', $v) + : $v)); + if ($attr == 'srcset' || ($attr == 'archive' && $ele == 'applet')) { + $vNew = ''; + foreach (explode(',', $v) as $k=>$x) { + $x = explode(' ', ltrim($x), 2); + $k = isset($x[1]) ? trim($x[1]) : ''; + $x = trim($x[0]); + if (isset($x[0])) { + $vNew .= hl_url($x, $attr). (empty($k) ? '' : ' '. $k). ', '; + } + } + $v = trim($vNew, ', '); + } + if ($attr == 'itemtype' || ($attr == 'archive' && $ele == 'object')) { + $vNew = ''; + foreach (explode(' ', $v) as $x) { + if (isset($x[0])) { + $vNew .= hl_url($x, $attr). ' '; + } + } + $v = trim($vNew, ' '); + } else { + $v = hl_url($v, $attr); + } + + // Anti-spam measure. + + if ($attr == 'href') { + if ($C['anti_mail_spam'] && strpos($v, 'mailto:') === 0) { + $v = str_replace('@', htmlspecialchars($C['anti_mail_spam']), $v); + } elseif ($C['anti_link_spam']) { + $x = $C['anti_link_spam'][1]; + if (!empty($x) && preg_match($x, $v)) { + continue; + } + $x = $C['anti_link_spam'][0]; + if (!empty($x) && preg_match($x, $v)) { + if (isset($filtAttrAr['rel'])) { + if (!preg_match('`\bnofollow\b`i', $filtAttrAr['rel'])) { + $filtAttrAr['rel'] .= ' nofollow'; + } + } elseif (isset($attrAr['rel'])) { + if (!preg_match('`\bnofollow\b`i', $attrAr['rel'])) { + $addNofollow = 1; + } + } else { + $filtAttrAr['rel'] = 'nofollow'; + } + } + } + } + } + + // .. Check attribute value against any $spec rule. + + if (isset($eleSpec[$attr]) + && is_array($eleSpec[$attr]) + && ($v = hl_attributeValue($attr, $v, $eleSpec[$attr], $ele)) === 0) { + continue; + } + + $filtAttrAr[$attr] = str_replace('"', '"', $v); + } + } + + // -- Add nofollow. + + if (isset($addNofollow)) { + $filtAttrAr['rel'] = isset($filtAttrAr['rel']) ? $filtAttrAr['rel']. ' nofollow' : 'nofollow'; + } + + // -- Add required attributes. + + static $requiredAttrAr = array('area'=>array('alt'=>'area'), 'bdo'=>array('dir'=>'ltr'), 'command'=>array('label'=>''), 'form'=>array('action'=>''), 'img'=>array('src'=>'', 'alt'=>'image'), 'map'=>array('name'=>''), 'optgroup'=>array('label'=>''), 'param'=>array('name'=>''), 'style'=>array('scoped'=>''), 'textarea'=>array('rows'=>'10', 'cols'=>'50')); + if (isset($requiredAttrAr[$ele])) { + foreach ($requiredAttrAr[$ele] as $k=>$v) { + if (!isset($filtAttrAr[$k])) { + $filtAttrAr[$k] = isset($v[0]) ? $v : $k; + } + } + } + + // -- Transform deprecated attributes into CSS declarations in style attribute. + + if ($alterDeprecAttr) { + $css = array(); + foreach ($filtAttrAr as $name=>$val) { + if ($name == 'style' || !isset($deprecAttrEleAr[$name][$ele])) { + continue; + } + $val = str_replace(array('\\', ':', ';', '&#'), '', $val); + if ($name == 'align') { + unset($filtAttrAr['align']); + if ($ele == 'img' && ($val == 'left' || $val == 'right')) { + $css[] = 'float: '. $val; + } elseif (($ele == 'div' || $ele == 'table') && $val == 'center') { + $css[] = 'margin: auto'; + } else { + $css[] = 'text-align: '. $val; + } + } elseif ($name == 'bgcolor') { + unset($filtAttrAr['bgcolor']); + $css[] = 'background-color: '. $val; + } elseif ($name == 'border') { + unset($filtAttrAr['border']); + $css[] = "border: {$val}px"; + } elseif ($name == 'bordercolor') { + unset($filtAttrAr['bordercolor']); + $css[] = 'border-color: '. $val; + } elseif ($name == 'cellspacing') { + unset($filtAttrAr['cellspacing']); + $css[] = "border-spacing: {$val}px"; + } elseif ($name == 'clear') { + unset($filtAttrAr['clear']); + $css[] = 'clear: '. ($val != 'all' ? $val : 'both'); + } elseif ($name == 'compact') { + unset($filtAttrAr['compact']); + $css[] = 'font-size: 85%'; + } elseif ($name == 'height' || $name == 'width') { + unset($filtAttrAr[$name]); + $css[] = + $name + . ': ' + . ((isset($val[0]) && $val[0] != '*') + ? $val. (ctype_digit($val) ? 'px' : '') + : 'auto'); + } elseif ($name == 'hspace') { + unset($filtAttrAr['hspace']); + $css[] = "margin-left: {$val}px; margin-right: {$val}px"; + } elseif ($name == 'language' && !isset($filtAttrAr['type'])) { + unset($filtAttrAr['language']); + $filtAttrAr['type'] = 'text/'. strtolower($val); + } elseif ($name == 'name') { + if ($C['no_deprecated_attr'] == 2 || ($ele != 'a' && $ele != 'map')) { + unset($filtAttrAr['name']); + } + if (!isset($filtAttrAr['id']) && !preg_match('`\W`', $val)) { + $filtAttrAr['id'] = $val; + } + } elseif ($name == 'noshade') { + unset($filtAttrAr['noshade']); + $css[] = 'border-style: none; border: 0; background-color: gray; color: gray'; + } elseif ($name == 'nowrap') { + unset($filtAttrAr['nowrap']); + $css[] = 'white-space: nowrap'; + } elseif ($name == 'size') { + unset($filtAttrAr['size']); + $css[] = 'size: '. $val. 'px'; + } elseif ($name == 'vspace') { + unset($filtAttrAr['vspace']); + $css[] = "margin-top: {$val}px; margin-bottom: {$val}px"; + } + } + if (count($css)) { + $css = implode('; ', $css); + $filtAttrAr['style'] = + isset($filtAttrAr['style']) + ? rtrim($filtAttrAr['style'], ' ;'). '; '. $css. ';' + : $css. ';'; + } + } + + // -- Enforce unique id attribute values. + + if ($C['unique_ids'] && isset($filtAttrAr['id'])) { + if (preg_match('`\s`', ($id = $filtAttrAr['id'])) || (isset($GLOBALS['hl_Ids'][$id]) && $C['unique_ids'] == 1)) { + unset($filtAttrAr['id']); + } else { + while (isset($GLOBALS['hl_Ids'][$id])) { + $id = $C['unique_ids']. $id; + } + $GLOBALS['hl_Ids'][($filtAttrAr['id'] = $id)] = 1; + } + } + + // -- Handle lang attributes. + + if ($C['xml:lang'] && isset($filtAttrAr['lang'])) { + $filtAttrAr['xml:lang'] = isset($filtAttrAr['xml:lang']) ? $filtAttrAr['xml:lang'] : $filtAttrAr['lang']; + if ($C['xml:lang'] == 2) { + unset($filtAttrAr['lang']); + } + } + + // -- If transformed element, modify style attribute. + + if (!empty($eleTransformed)) { + $filtAttrAr['style'] = + isset($filtAttrAr['style']) + ? rtrim($filtAttrAr['style'], ' ;'). '; '. $eleTransformed + : $eleTransformed; + } + + // -- Return opening tag with attributes. + + if (empty($C['hook_tag'])) { + $attrStr = ''; + foreach ($filtAttrAr as $k=>$v) { + $attrStr .= " {$k}=\"{$v}\""; + } + return "<{$ele}{$attrStr}". (isset($emptyEleAr[$ele]) ? ' /' : ''). '>'; + } else { + return call_user_func($C['hook_tag'], $ele, $filtAttrAr); + } +} + +/** + * Tidy/beautify HTM by adding newline and other spaces (padding), + * or compact by removing unnecessary spaces. + * + * @param string $t HTM. + * @param mixed $format -1 (compact) or string (type of padding). + * @param string $parentEle Parent element of $t. + * @return mixed Transformed attribute string (may be empty) or 0. + */ +function hl_tidy($t, $format, $parentEle) +{ + if (strpos(' pre,script,textarea', "$parentEle,")) { + return $t; + } + + // Hide CDATA/comment. + + if (!function_exists('hl_aux2')) { + function hl_aux2($x) { + return + $x[1] + . str_replace( + array("<", ">", "\n", "\r", "\t", ' '), + array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), + $x[3]) + . $x[4]; + } + } + $t = + preg_replace( + array('`(<\w[^>]*(?)\s+`', '`\s+`', '`(<\w[^>]*(?) `'), + array(' $1', ' ', '$1'), + preg_replace_callback( + array('`(<(!\[CDATA\[))(.+?)(\]\]>)`sm', '`(<(!--))(.+?)(-->)`sm', '`(<(pre|script|textarea)[^>]*?>)(.+?)()`sm'), + 'hl_aux2', + $t)); + + if (($format = strtolower($format)) == -1) { + return + str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), array('<', '>', "\n", "\r", "\t", ' '), $t); + } + $padChar = strpos(" $format", 't') ? "\t" : ' '; + $padStr = + preg_match('`\d`', $format, $m) + ? str_repeat($padChar, intval($m[0])) + : str_repeat($padChar, ($padChar == "\t" ? 1 : 2)); + $leadN = preg_match('`[ts]([1-9])`', $format, $m) ? intval($m[1]) : 0; + + // Group elements by line-break requirement. + + $postCloseEleAr = array('br'=>1); // After closing + $preEleAr = array('button'=>1, 'command'=>1, 'input'=>1, 'option'=>1, 'param'=>1, 'track'=>1); // Before opening or closing + $preOpenPostCloseEleAr = 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); // Before opening and after closing + $prePostEleAr = array('address'=>1, 'article'=>1, 'aside'=>1, 'blockquote'=>1, 'center'=>1, 'colgroup'=>1, 'datalist'=>1, 'details'=>1, 'dialog'=>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, 'picture'=>1, 'rbc'=>1, 'rtc'=>1, 'ruby'=>1, 'script'=>1, 'section'=>1, 'select'=>1, 'table'=>1, 'tbody'=>1, 'template'=>1, 'tfoot'=>1, 'thead'=>1, 'tr'=>1, 'ul'=>1); // Before and after opening and closing + + $doPad = 1; + $t = explode('<', $t); + while ($doPad) { + $n = $leadN; + $eleAr = $t; + ob_start(); + if (isset($prePostEleAr[$parentEle])) { + echo str_repeat($padStr, ++$n); + } + echo ltrim(array_shift($eleAr)); + for ($i=-1, $j=count($eleAr); ++$i<$j;) { + $rest = ''; + list($tag, $rest) = explode('>', $eleAr[$i]); + $open = $tag[0] == '/' ? 0 : (substr($tag, -1) == '/' ? 1 : ($tag[0] != '!' ? 2 : -1)); + $ele = !$open ? ltrim($tag, '/') : ($open > 0 ? substr($tag, 0, strcspn($tag, ' ')) : 0); + $tag = "<$tag>"; + if (isset($prePostEleAr[$ele])) { + if (!$open) { + if ($n) { + echo "\n", str_repeat($padStr, --$n), "$tag\n", str_repeat($padStr, $n); + } else { + ++$leadN; + ob_end_clean(); + continue 2; + } + } else { + echo "\n", str_repeat($padStr, $n), "$tag\n", str_repeat($padStr, ($open != 1 ? ++$n : $n)); + } + echo $rest; + continue; + } + $pad = "\n". str_repeat($padStr, $n); + if (isset($preOpenPostCloseEleAr[$ele])) { + if (!$open) { + echo $tag, $pad, $rest; + } else { + echo $pad, $tag, $rest; + } + } elseif (isset($preEleAr[$ele])) { + echo $pad, $tag, $rest; + } elseif (isset($postCloseEleAr[$ele])) { + echo $tag, $pad, $rest; + } elseif (!$ele) { + echo $pad, $tag, $pad, $rest; + } else { + echo $tag, $rest; + } + } + $doPad = 0; + } + $t = str_replace(array("\n ", " \n"), "\n", preg_replace('`[\n]\s*?[\n]+`', "\n", ob_get_contents())); + ob_end_clean(); + if (($newline = strpos(" $format", 'r') ? (strpos(" $format", 'n') ? "\r\n" : "\r") : 0)) { + $t = str_replace("\n", $newline, $t); + } + return str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), array('<', '>', "\n", "\r", "\t", ' '), $t); +} + +/** + * Handle URL to convert to relative/absolute type, + * block scheme, or add anti-spam text. + * + * @param mixed $url URL string, or array with URL value (if $attr is null). + * @param mixed $attr Attribute name string, or null (if $url is array). + * @return string With URL after any conversion/obfuscation. + */ +function hl_url($url, $attr=null) +{ + global $C; + $preUrl = $postUrl = ''; + static $blocker = 'denied:'; + if ($attr == null) { // style attribute value + $attr = 'style'; + $preUrl = $url[1]; + $postUrl = $url[3]; + $url = trim($url[2]); + } + $okSchemeAr = isset($C['schemes'][$attr]) ? $C['schemes'][$attr] : $C['schemes']['*']; + if (isset($okSchemeAr['!']) && substr($url, 0, 7) != $blocker) { + $url = "{$blocker}{$url}"; + } + if (isset($okSchemeAr['*']) + || !strcspn($url, '#?;') + || substr($url, 0, strlen($blocker)) == $blocker + ) { + return "{$preUrl}{$url}{$postUrl}"; + } + if (preg_match('`^([^:?[@!$()*,=/\'\]]+?)(:|&(#(58|x3a)|colon);|%3a|\\\\0{0,4}3a).`i', $url, $m) + && !isset($okSchemeAr[strtolower($m[1])]) // Special crafting suggests malice + ) { + return "{$preUrl}{$blocker}{$url}{$postUrl}"; + } + if ($C['abs_url']) { + if ($C['abs_url'] == -1 && strpos($url, $C['base_url']) === 0) { // Make URL relative + $url = substr($url, strlen($C['base_url'])); + } elseif (empty($m[1])) { // Make URL absolute + if (substr($url, 0, 2) == '//') { + $url = substr($C['base_url'], 0, strpos($C['base_url'], ':') + 1). $url; + } elseif ($url[0] == '/') { + $url = preg_replace('`(^.+?://[^/]+)(.*)`', '$1', $C['base_url']). $url; + } elseif (strcspn($url, './')) { + $url = $C['base_url']. $url; + } else { + preg_match('`^([a-zA-Z\d\-+.]+://[^/]+)(.*)`', $C['base_url'], $m); + $url = preg_replace('`(?<=/)\./`', '', $m[2]. $url); + while (preg_match('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', $url)) { + $url = preg_replace('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', '', $url); + } + $url = $m[1]. $url; + } + } + } + return "{$preUrl}{$url}{$postUrl}"; +} + +/** + * Report version. + * + * @return string Version. + */ +function hl_version() +{ + return '1.2.15'; +}