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authordonncha <donncha@7be80a69-a1ef-0310-a953-fb0f7c49ff36>2006-06-22 18:31:50 +0000
committerdonncha <donncha@7be80a69-a1ef-0310-a953-fb0f7c49ff36>2006-06-22 18:31:50 +0000
commitd48e85e0ac5e675ca33fac173f30c75403d1033f (patch)
tree1164430fa3b83a4d9283961b09c1576f2885e6b2 /wp-includes/formatting.php
parent086dcde66603301531efc6d8087bd06d0546f148 (diff)
downloadwordpress-mu-d48e85e0ac5e675ca33fac173f30c75403d1033f.tar.gz
wordpress-mu-d48e85e0ac5e675ca33fac173f30c75403d1033f.tar.xz
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Moved everything in wp-inst down a directory.
Uses's Ryan Boren's htaccess rules and mods If you're upgrading, try this on a test server first! git-svn-id: http://svn.automattic.com/wordpress-mu/trunk@591 7be80a69-a1ef-0310-a953-fb0f7c49ff36
Diffstat (limited to 'wp-includes/formatting.php')
-rw-r--r--wp-includes/formatting.php1049
1 files changed, 1049 insertions, 0 deletions
diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
new file mode 100644
index 0000000..61cd1b2
--- /dev/null
+++ b/wp-includes/formatting.php
@@ -0,0 +1,1049 @@
+<?php
+
+function wptexturize($text) {
+ $output = '';
+ // Capture tags and everything inside them
+ $textarr = preg_split("/(<.*>)/Us", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
+ $stop = count($textarr); $next = true; // loop stuff
+ for ($i = 0; $i < $stop; $i++) {
+ $curl = $textarr[$i];
+
+ if (isset($curl{0}) && '<' != $curl{0} && $next) { // If it's not a tag
+ $curl = str_replace('---', '&#8212;', $curl);
+ $curl = str_replace(' -- ', ' &#8212; ', $curl);
+ $curl = str_replace('--', '&#8211;', $curl);
+ $curl = str_replace('xn&#8211;', 'xn--', $curl);
+ $curl = str_replace('...', '&#8230;', $curl);
+ $curl = str_replace('``', '&#8220;', $curl);
+
+ // This is a hack, look at this more later. It works pretty well though.
+ $cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round","'cause");
+ $cockneyreplace = array("&#8217;tain&#8217;t","&#8217;twere","&#8217;twas","&#8217;tis","&#8217;twill","&#8217;til","&#8217;bout","&#8217;nuff","&#8217;round","&#8217;cause");
+ $curl = str_replace($cockney, $cockneyreplace, $curl);
+
+ $curl = preg_replace("/'s/", '&#8217;s', $curl);
+ $curl = preg_replace("/'(\d\d(?:&#8217;|')?s)/", "&#8217;$1", $curl);
+ $curl = preg_replace('/(\s|\A|")\'/', '$1&#8216;', $curl);
+ $curl = preg_replace('/(\d+)"/', '$1&#8243;', $curl);
+ $curl = preg_replace("/(\d+)'/", '$1&#8242;', $curl);
+ $curl = preg_replace("/(\S)'([^'\s])/", "$1&#8217;$2", $curl);
+ $curl = preg_replace('/(\s|\A)"(?!\s)/', '$1&#8220;$2', $curl);
+ $curl = preg_replace('/"(\s|\S|\Z)/', '&#8221;$1', $curl);
+ $curl = preg_replace("/'([\s.]|\Z)/", '&#8217;$1', $curl);
+ $curl = preg_replace("/ \(tm\)/i", ' &#8482;', $curl);
+ $curl = str_replace("''", '&#8221;', $curl);
+
+ $curl = preg_replace('/(\d+)x(\d+)/', "$1&#215;$2", $curl);
+
+ } elseif (strstr($curl, '<code') || strstr($curl, '<pre') || strstr($curl, '<kbd' || strstr($curl, '<style') || strstr($curl, '<script'))) {
+ // strstr is fast
+ $next = false;
+ } else {
+ $next = true;
+ }
+ $curl = preg_replace('/&([^#])(?![a-zA-Z1-4]{1,8};)/', '&#038;$1', $curl);
+ $output .= $curl;
+ }
+ return $output;
+}
+
+function clean_pre($text) {
+ $text = str_replace('<br />', '', $text);
+ $text = str_replace('<p>', "\n", $text);
+ $text = str_replace('</p>', '', $text);
+ return $text;
+}
+
+function wpautop($pee, $br = 1) {
+ $pee = $pee . "\n"; // just to make things a little easier, pad the end
+ $pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
+ // Space things out a little
+ $pee = preg_replace('!(<(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|address|math|p|h[1-6])[^>]*>)!', "\n$1", $pee);
+ $pee = preg_replace('!(</(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|address|math|p|h[1-6])>)!', "$1\n\n", $pee);
+ $pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
+ $pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates
+ $pee = preg_replace('/\n?(.+?)(?:\n\s*\n|\z)/s', "<p>$1</p>\n", $pee); // make paragraphs, including one at the end
+ $pee = preg_replace('|<p>\s*?</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace
+ $pee = preg_replace('!<p>\s*(</?(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|hr|pre|select|form|blockquote|address|math|p|h[1-6])[^>]*>)\s*</p>!', "$1", $pee); // don't pee all over a tag
+ $pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists
+ $pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee);
+ $pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee);
+ $pee = preg_replace('!<p>\s*(</?(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|hr|pre|select|form|blockquote|address|math|p|h[1-6])[^>]*>)!', "$1", $pee);
+ $pee = preg_replace('!(</?(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|address|math|p|h[1-6])[^>]*>)\s*</p>!', "$1", $pee);
+ if ($br) $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
+ $pee = preg_replace('!(</?(?:table|thead|tfoot|caption|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|address|math|p|h[1-6])[^>]*>)\s*<br />!', "$1", $pee);
+ $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)>)!', '$1', $pee);
+ $pee = preg_replace('!(<pre.*?>)(.*?)</pre>!ise', " stripslashes('$1') . stripslashes(clean_pre('$2')) . '</pre>' ", $pee);
+
+ return $pee;
+}
+
+
+function seems_utf8($Str) { # by bmorel at ssi dot fr
+ for ($i=0; $i<strlen($Str); $i++) {
+ if (ord($Str[$i]) < 0x80) continue; # 0bbbbbbb
+ elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
+ elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
+ elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
+ elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
+ elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
+ else return false; # Does not match any model
+ for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
+ if ((++$i == strlen($Str)) || ((ord($Str[$i]) & 0xC0) != 0x80))
+ return false;
+ }
+ }
+ return true;
+}
+
+function wp_specialchars( $text, $quotes = 0 ) {
+ // Like htmlspecialchars except don't double-encode HTML entities
+ $text = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/', '&#038;$1', $text);
+ $text = str_replace('<', '&lt;', $text);
+ $text = str_replace('>', '&gt;', $text);
+ if ( 'double' === $quotes ) {
+ $text = str_replace('"', '&quot;', $text);
+ } elseif ( 'single' === $quotes ) {
+ $text = str_replace("'", '&#039;', $text);
+ } elseif ( $quotes ) {
+ $text = str_replace('"', '&quot;', $text);
+ $text = str_replace("'", '&#039;', $text);
+ }
+ return $text;
+}
+
+function utf8_uri_encode( $utf8_string ) {
+ $unicode = '';
+ $values = array();
+ $num_octets = 1;
+
+ for ($i = 0; $i < strlen( $utf8_string ); $i++ ) {
+
+ $value = ord( $utf8_string[ $i ] );
+
+ if ( $value < 128 ) {
+ $unicode .= chr($value);
+ } else {
+ if ( count( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3;
+
+ $values[] = $value;
+
+ if ( count( $values ) == $num_octets ) {
+ if ($num_octets == 3) {
+ $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]) . '%' . dechex($values[2]);
+ } else {
+ $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]);
+ }
+
+ $values = array();
+ $num_octets = 1;
+ }
+ }
+ }
+
+ return $unicode;
+}
+
+function remove_accents($string) {
+ if (seems_utf8($string)) {
+ $chars = array(
+ // Decompositions for Latin-1 Supplement
+ chr(195).chr(128) => 'A', chr(195).chr(129) => 'A',
+ chr(195).chr(130) => 'A', chr(195).chr(131) => 'A',
+ chr(195).chr(132) => 'A', chr(195).chr(133) => 'A',
+ chr(195).chr(135) => 'C', chr(195).chr(136) => 'E',
+ chr(195).chr(137) => 'E', chr(195).chr(138) => 'E',
+ chr(195).chr(139) => 'E', chr(195).chr(140) => 'I',
+ chr(195).chr(141) => 'I', chr(195).chr(142) => 'I',
+ chr(195).chr(143) => 'I', chr(195).chr(145) => 'N',
+ chr(195).chr(146) => 'O', chr(195).chr(147) => 'O',
+ chr(195).chr(148) => 'O', chr(195).chr(149) => 'O',
+ chr(195).chr(150) => 'O', chr(195).chr(153) => 'U',
+ chr(195).chr(154) => 'U', chr(195).chr(155) => 'U',
+ chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y',
+ chr(195).chr(159) => 's', chr(195).chr(160) => 'a',
+ chr(195).chr(161) => 'a', chr(195).chr(162) => 'a',
+ chr(195).chr(163) => 'a', chr(195).chr(164) => 'a',
+ chr(195).chr(165) => 'a', chr(195).chr(167) => 'c',
+ chr(195).chr(168) => 'e', chr(195).chr(169) => 'e',
+ chr(195).chr(170) => 'e', chr(195).chr(171) => 'e',
+ chr(195).chr(172) => 'i', chr(195).chr(173) => 'i',
+ chr(195).chr(174) => 'i', chr(195).chr(175) => 'i',
+ chr(195).chr(177) => 'n', chr(195).chr(178) => 'o',
+ chr(195).chr(179) => 'o', chr(195).chr(180) => 'o',
+ chr(195).chr(181) => 'o', chr(195).chr(182) => 'o',
+ chr(195).chr(182) => 'o', chr(195).chr(185) => 'u',
+ chr(195).chr(186) => 'u', chr(195).chr(187) => 'u',
+ chr(195).chr(188) => 'u', chr(195).chr(189) => 'y',
+ chr(195).chr(191) => 'y',
+ // Decompositions for Latin Extended-A
+ chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',
+ chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',
+ chr(196).chr(132) => 'A', chr(196).chr(133) => 'a',
+ chr(196).chr(134) => 'C', chr(196).chr(135) => 'c',
+ chr(196).chr(136) => 'C', chr(196).chr(137) => 'c',
+ chr(196).chr(138) => 'C', chr(196).chr(139) => 'c',
+ chr(196).chr(140) => 'C', chr(196).chr(141) => 'c',
+ chr(196).chr(142) => 'D', chr(196).chr(143) => 'd',
+ chr(196).chr(144) => 'D', chr(196).chr(145) => 'd',
+ chr(196).chr(146) => 'E', chr(196).chr(147) => 'e',
+ chr(196).chr(148) => 'E', chr(196).chr(149) => 'e',
+ chr(196).chr(150) => 'E', chr(196).chr(151) => 'e',
+ chr(196).chr(152) => 'E', chr(196).chr(153) => 'e',
+ chr(196).chr(154) => 'E', chr(196).chr(155) => 'e',
+ chr(196).chr(156) => 'G', chr(196).chr(157) => 'g',
+ chr(196).chr(158) => 'G', chr(196).chr(159) => 'g',
+ chr(196).chr(160) => 'G', chr(196).chr(161) => 'g',
+ chr(196).chr(162) => 'G', chr(196).chr(163) => 'g',
+ chr(196).chr(164) => 'H', chr(196).chr(165) => 'h',
+ chr(196).chr(166) => 'H', chr(196).chr(167) => 'h',
+ chr(196).chr(168) => 'I', chr(196).chr(169) => 'i',
+ chr(196).chr(170) => 'I', chr(196).chr(171) => 'i',
+ chr(196).chr(172) => 'I', chr(196).chr(173) => 'i',
+ chr(196).chr(174) => 'I', chr(196).chr(175) => 'i',
+ chr(196).chr(176) => 'I', chr(196).chr(177) => 'i',
+ chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij',
+ chr(196).chr(180) => 'J', chr(196).chr(181) => 'j',
+ chr(196).chr(182) => 'K', chr(196).chr(183) => 'k',
+ chr(196).chr(184) => 'k', chr(196).chr(185) => 'L',
+ chr(196).chr(186) => 'l', chr(196).chr(187) => 'L',
+ chr(196).chr(188) => 'l', chr(196).chr(189) => 'L',
+ chr(196).chr(190) => 'l', chr(196).chr(191) => 'L',
+ chr(197).chr(128) => 'l', chr(197).chr(129) => 'L',
+ chr(197).chr(130) => 'l', chr(197).chr(131) => 'N',
+ chr(197).chr(132) => 'n', chr(197).chr(133) => 'N',
+ chr(197).chr(134) => 'n', chr(197).chr(135) => 'N',
+ chr(197).chr(136) => 'n', chr(197).chr(137) => 'N',
+ chr(197).chr(138) => 'n', chr(197).chr(139) => 'N',
+ chr(197).chr(140) => 'O', chr(197).chr(141) => 'o',
+ chr(197).chr(142) => 'O', chr(197).chr(143) => 'o',
+ chr(197).chr(144) => 'O', chr(197).chr(145) => 'o',
+ chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe',
+ chr(197).chr(148) => 'R',chr(197).chr(149) => 'r',
+ chr(197).chr(150) => 'R',chr(197).chr(151) => 'r',
+ chr(197).chr(152) => 'R',chr(197).chr(153) => 'r',
+ chr(197).chr(154) => 'S',chr(197).chr(155) => 's',
+ chr(197).chr(156) => 'S',chr(197).chr(157) => 's',
+ chr(197).chr(158) => 'S',chr(197).chr(159) => 's',
+ chr(197).chr(160) => 'S', chr(197).chr(161) => 's',
+ chr(197).chr(162) => 'T', chr(197).chr(163) => 't',
+ chr(197).chr(164) => 'T', chr(197).chr(165) => 't',
+ chr(197).chr(166) => 'T', chr(197).chr(167) => 't',
+ chr(197).chr(168) => 'U', chr(197).chr(169) => 'u',
+ chr(197).chr(170) => 'U', chr(197).chr(171) => 'u',
+ chr(197).chr(172) => 'U', chr(197).chr(173) => 'u',
+ chr(197).chr(174) => 'U', chr(197).chr(175) => 'u',
+ chr(197).chr(176) => 'U', chr(197).chr(177) => 'u',
+ chr(197).chr(178) => 'U', chr(197).chr(179) => 'u',
+ chr(197).chr(180) => 'W', chr(197).chr(181) => 'w',
+ chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y',
+ chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z',
+ chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',
+ chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',
+ chr(197).chr(190) => 'z', chr(197).chr(191) => 's',
+ // Euro Sign
+ chr(226).chr(130).chr(172) => 'E');
+
+ $string = strtr($string, $chars);
+ } else {
+ // Assume ISO-8859-1 if not UTF-8
+ $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158)
+ .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194)
+ .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202)
+ .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210)
+ .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218)
+ .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227)
+ .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235)
+ .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243)
+ .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251)
+ .chr(252).chr(253).chr(255);
+
+ $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";
+
+ $string = strtr($string, $chars['in'], $chars['out']);
+ $double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254));
+ $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th');
+ $string = str_replace($double_chars['in'], $double_chars['out'], $string);
+ }
+
+ return $string;
+}
+
+function sanitize_user( $username, $strict = false ) {
+ $raw_username = $username;
+ $username = strip_tags($username);
+ // Kill octets
+ $username = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '', $username);
+ $username = preg_replace('/&.+?;/', '', $username); // Kill entities
+
+ // If strict, reduce to ASCII for max portability.
+ if ( $strict )
+ $username = preg_replace('|[^a-z0-9 _.\-@]|i', '', $username);
+
+ return apply_filters('sanitize_user', $username, $raw_username, $strict);
+}
+
+function sanitize_title($title, $fallback_title = '') {
+ $title = strip_tags($title);
+ $title = apply_filters('sanitize_title', $title);
+
+ if (empty($title)) {
+ $title = $fallback_title;
+ }
+
+ return $title;
+}
+
+function sanitize_title_with_dashes($title) {
+ $title = strip_tags($title);
+ // Preserve escaped octets.
+ $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
+ // Remove percent signs that are not part of an octet.
+ $title = str_replace('%', '', $title);
+ // Restore octets.
+ $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);
+
+ $title = remove_accents($title);
+ if (seems_utf8($title)) {
+ if (function_exists('mb_strtolower')) {
+ $title = mb_strtolower($title, 'UTF-8');
+ }
+ $title = utf8_uri_encode($title);
+ }
+
+ $title = strtolower($title);
+ $title = preg_replace('/&.+?;/', '', $title); // kill entities
+ $title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
+ $title = preg_replace('/\s+/', '-', $title);
+ $title = preg_replace('|-+|', '-', $title);
+ $title = trim($title, '-');
+
+ return $title;
+}
+
+function convert_chars($content, $flag = 'obsolete') {
+ // Translation of invalid Unicode references range to valid range
+ $wp_htmltranswinuni = array(
+ '&#128;' => '&#8364;', // the Euro sign
+ '&#129;' => '',
+ '&#130;' => '&#8218;', // these are Windows CP1252 specific characters
+ '&#131;' => '&#402;', // they would look weird on non-Windows browsers
+ '&#132;' => '&#8222;',
+ '&#133;' => '&#8230;',
+ '&#134;' => '&#8224;',
+ '&#135;' => '&#8225;',
+ '&#136;' => '&#710;',
+ '&#137;' => '&#8240;',
+ '&#138;' => '&#352;',
+ '&#139;' => '&#8249;',
+ '&#140;' => '&#338;',
+ '&#141;' => '',
+ '&#142;' => '&#382;',
+ '&#143;' => '',
+ '&#144;' => '',
+ '&#145;' => '&#8216;',
+ '&#146;' => '&#8217;',
+ '&#147;' => '&#8220;',
+ '&#148;' => '&#8221;',
+ '&#149;' => '&#8226;',
+ '&#150;' => '&#8211;',
+ '&#151;' => '&#8212;',
+ '&#152;' => '&#732;',
+ '&#153;' => '&#8482;',
+ '&#154;' => '&#353;',
+ '&#155;' => '&#8250;',
+ '&#156;' => '&#339;',
+ '&#157;' => '',
+ '&#158;' => '',
+ '&#159;' => '&#376;'
+ );
+
+ // Remove metadata tags
+ $content = preg_replace('/<title>(.+?)<\/title>/','',$content);
+ $content = preg_replace('/<category>(.+?)<\/category>/','',$content);
+
+ // Converts lone & characters into &#38; (a.k.a. &amp;)
+ $content = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/i', '&#038;$1', $content);
+
+ // Fix Word pasting
+ $content = strtr($content, $wp_htmltranswinuni);
+
+ // Just a little XHTML help
+ $content = str_replace('<br>', '<br />', $content);
+ $content = str_replace('<hr>', '<hr />', $content);
+
+ return $content;
+}
+
+function funky_javascript_fix($text) {
+ // Fixes for browsers' javascript bugs
+ global $is_macIE, $is_winIE;
+
+ if ( $is_winIE || $is_macIE )
+ $text = preg_replace("/\%u([0-9A-F]{4,4})/e", "'&#'.base_convert('\\1',16,10).';'", $text);
+
+ return $text;
+}
+
+/*
+ balanceTags
+
+ Balances Tags of string using a modified stack.
+
+ @param text Text to be balanced
+ @return Returns balanced text
+ @author Leonard Lin (leonard@acm.org)
+ @version v1.1
+ @date November 4, 2001
+ @license GPL v2.0
+ @notes
+ @changelog
+ --- Modified by Scott Reilly (coffee2code) 02 Aug 2004
+ 1.2 ***TODO*** Make better - change loop condition to $text
+ 1.1 Fixed handling of append/stack pop order of end text
+ Added Cleaning Hooks
+ 1.0 First Version
+*/
+function balanceTags($text, $is_comment = 0, $force = false) {
+
+ if ( !$force && get_option('use_balanceTags') == 0 )
+ return $text;
+
+ $tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = '';
+
+ # WP bug fix for comments - in case you REALLY meant to type '< !--'
+ $text = str_replace('< !--', '< !--', $text);
+ # WP bug fix for LOVE <3 (and other situations with '<' before a number)
+ $text = preg_replace('#<([0-9]{1})#', '&lt;$1', $text);
+
+ while (preg_match("/<(\/?\w*)\s*([^>]*)>/",$text,$regex)) {
+ $newtext .= $tagqueue;
+
+ $i = strpos($text,$regex[0]);
+ $l = strlen($regex[0]);
+
+ // clear the shifter
+ $tagqueue = '';
+ // Pop or Push
+ if ($regex[1][0] == "/") { // End Tag
+ $tag = strtolower(substr($regex[1],1));
+ // if too many closing tags
+ if($stacksize <= 0) {
+ $tag = '';
+ //or close to be safe $tag = '/' . $tag;
+ }
+ // if stacktop value = tag close value then pop
+ else if ($tagstack[$stacksize - 1] == $tag) { // found closing tag
+ $tag = '</' . $tag . '>'; // Close Tag
+ // Pop
+ array_pop ($tagstack);
+ $stacksize--;
+ } else { // closing tag not at top, search for it
+ for ($j=$stacksize-1;$j>=0;$j--) {
+ if ($tagstack[$j] == $tag) {
+ // add tag to tagqueue
+ for ($k=$stacksize-1;$k>=$j;$k--){
+ $tagqueue .= '</' . array_pop ($tagstack) . '>';
+ $stacksize--;
+ }
+ break;
+ }
+ }
+ $tag = '';
+ }
+ } else { // Begin Tag
+ $tag = strtolower($regex[1]);
+
+ // Tag Cleaning
+
+ // If self-closing or '', don't do anything.
+ if((substr($regex[2],-1) == '/') || ($tag == '')) {
+ }
+ // ElseIf it's a known single-entity tag but it doesn't close itself, do so
+ elseif ($tag == 'br' || $tag == 'img' || $tag == 'hr' || $tag == 'input') {
+ $regex[2] .= '/';
+ } else { // Push the tag onto the stack
+ // If the top of the stack is the same as the tag we want to push, close previous tag
+ if (($stacksize > 0) && ($tag != 'div') && ($tagstack[$stacksize - 1] == $tag)) {
+ $tagqueue = '</' . array_pop ($tagstack) . '>';
+ $stacksize--;
+ }
+ $stacksize = array_push ($tagstack, $tag);
+ }
+
+ // Attributes
+ $attributes = $regex[2];
+ if($attributes) {
+ $attributes = ' '.$attributes;
+ }
+ $tag = '<'.$tag.$attributes.'>';
+ //If already queuing a close tag, then put this tag on, too
+ if ($tagqueue) {
+ $tagqueue .= $tag;
+ $tag = '';
+ }
+ }
+ $newtext .= substr($text,0,$i) . $tag;
+ $text = substr($text,$i+$l);
+ }
+
+ // Clear Tag Queue
+ $newtext .= $tagqueue;
+
+ // Add Remaining text
+ $newtext .= $text;
+
+ // Empty Stack
+ while($x = array_pop($tagstack)) {
+ $newtext .= '</' . $x . '>'; // Add remaining tags to close
+ }
+
+ // WP fix for the bug with HTML comments
+ $newtext = str_replace("< !--","<!--",$newtext);
+ $newtext = str_replace("< !--","< !--",$newtext);
+
+ return $newtext;
+}
+
+
+function format_to_edit($content, $richedit = false) {
+ $content = apply_filters('format_to_edit', $content);
+ if (! $richedit )
+ $content = htmlspecialchars($content);
+ return $content;
+}
+
+function format_to_post($content) {
+ global $wpdb;
+ $content = apply_filters('format_to_post', $content);
+ return $content;
+}
+
+function zeroise($number,$threshold) { // function to add leading zeros when necessary
+ return sprintf('%0'.$threshold.'s', $number);
+}
+
+
+function backslashit($string) {
+ $string = preg_replace('/^([0-9])/', '\\\\\\\\\1', $string);
+ $string = preg_replace('/([a-z])/i', '\\\\\1', $string);
+ return $string;
+}
+
+function trailingslashit($string) {
+ if ( '/' != substr($string, -1)) {
+ $string .= '/';
+ }
+ return $string;
+}
+
+function addslashes_gpc($gpc) {
+ global $wpdb;
+
+ if (get_magic_quotes_gpc()) {
+ $gpc = stripslashes($gpc);
+ }
+
+ return $wpdb->escape($gpc);
+}
+
+
+function stripslashes_deep($value)
+{
+ $value = is_array($value) ?
+ array_map('stripslashes_deep', $value) :
+ stripslashes($value);
+
+ return $value;
+}
+
+function antispambot($emailaddy, $mailto=0) {
+ $emailNOSPAMaddy = '';
+ srand ((float) microtime() * 1000000);
+ for ($i = 0; $i < strlen($emailaddy); $i = $i + 1) {
+ $j = floor(rand(0, 1+$mailto));
+ if ($j==0) {
+ $emailNOSPAMaddy .= '&#'.ord(substr($emailaddy,$i,1)).';';
+ } elseif ($j==1) {
+ $emailNOSPAMaddy .= substr($emailaddy,$i,1);
+ } elseif ($j==2) {
+ $emailNOSPAMaddy .= '%'.zeroise(dechex(ord(substr($emailaddy, $i, 1))), 2);
+ }
+ }
+ $emailNOSPAMaddy = str_replace('@','&#64;',$emailNOSPAMaddy);
+ return $emailNOSPAMaddy;
+}
+
+function make_clickable($ret) {
+ $ret = ' ' . $ret . ' ';
+ $ret = preg_replace("#([\s>])(https?)://([^\s<>{}()]+[^\s.,<>{}()])#i", "$1<a href='$2://$3' rel='nofollow'>$2://$3</a>", $ret);
+ $ret = preg_replace("#(\s)www\.([a-z0-9\-]+)\.([a-z0-9\-.\~]+)((?:/[^ <>{}()\n\r]*[^., <>{}()\n\r]?)?)#i", "$1<a href='http://www.$2.$3$4' rel='nofollow'>www.$2.$3$4</a>", $ret);
+ $ret = preg_replace("#(\s)([a-z0-9\-_.]+)@([a-z0-9\-_.]+)\.([^,< \n\r]+)#i", "$1<a href=\"mailto:$2@$3.$4\">$2@$3.$4</a>", $ret);
+ $ret = trim($ret);
+ return $ret;
+}
+
+function wp_rel_nofollow( $text ) {
+ global $wpdb;
+ // This is a pre save filter, so text is already escaped.
+ $text = stripslashes($text);
+ $text = preg_replace('|<a (.+?)>|i', '<a $1 rel="nofollow">', $text);
+ $text = $wpdb->escape($text);
+ return $text;
+}
+
+function convert_smilies($text) {
+ global $wp_smiliessearch, $wp_smiliesreplace;
+ $output = '';
+ if (get_settings('use_smilies')) {
+ // HTML loop taken from texturize function, could possible be consolidated
+ $textarr = preg_split("/(<.*>)/U", $text, -1, PREG_SPLIT_DELIM_CAPTURE); // capture the tags as well as in between
+ $stop = count($textarr);// loop stuff
+ for ($i = 0; $i < $stop; $i++) {
+ $content = $textarr[$i];
+ if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag
+ $content = str_replace($wp_smiliessearch, $wp_smiliesreplace, $content);
+ }
+ $output .= $content;
+ }
+ } else {
+ // return default text.
+ $output = $text;
+ }
+ return $output;
+}
+
+
+function is_email($user_email) {
+ $chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i";
+ if(strstr($user_email, '@') && strstr($user_email, '.')) {
+ if (preg_match($chars, $user_email)) {
+ return true;
+ } else {
+ return false;
+ }
+ } else {
+ return false;
+ }
+}
+
+// used by wp-mail to handle charsets in email subjects
+function wp_iso_descrambler($string) {
+ /* this may only work with iso-8859-1, I'm afraid */
+ if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) {
+ return $string;
+ } else {
+ $subject = str_replace('_', ' ', $matches[2]);
+ $subject = preg_replace('#\=([0-9a-f]{2})#ei', "chr(hexdec(strtolower('$1')))", $subject);
+ return $subject;
+ }
+}
+
+
+// give it a date, it will give you the same date as GMT
+function get_gmt_from_date($string) {
+ // note: this only substracts $time_difference from the given date
+ preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
+ $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
+ $string_gmt = gmdate('Y-m-d H:i:s', $string_time - get_settings('gmt_offset') * 3600);
+ return $string_gmt;
+}
+
+// give it a GMT date, it will give you the same date with $time_difference added
+function get_date_from_gmt($string) {
+ // note: this only adds $time_difference to the given date
+ preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
+ $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
+ $string_localtime = gmdate('Y-m-d H:i:s', $string_time + get_settings('gmt_offset')*3600);
+ return $string_localtime;
+}
+
+// computes an offset in seconds from an iso8601 timezone
+function iso8601_timezone_to_offset($timezone) {
+ // $timezone is either 'Z' or '[+|-]hhmm'
+ if ($timezone == 'Z') {
+ $offset = 0;
+ } else {
+ $sign = (substr($timezone, 0, 1) == '+') ? 1 : -1;
+ $hours = intval(substr($timezone, 1, 2));
+ $minutes = intval(substr($timezone, 3, 4)) / 60;
+ $offset = $sign * 3600 * ($hours + $minutes);
+ }
+ return $offset;
+}
+
+// converts an iso8601 date to MySQL DateTime format used by post_date[_gmt]
+function iso8601_to_datetime($date_string, $timezone = USER) {
+ if ($timezone == GMT) {
+ preg_match('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', $date_string, $date_bits);
+ if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset
+ $offset = iso8601_timezone_to_offset($date_bits[7]);
+ } else { // we don't have a timezone, so we assume user local timezone (not server's!)
+ $offset = 3600 * get_settings('gmt_offset');
+ }
+ $timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]);
+ $timestamp -= $offset;
+ return gmdate('Y-m-d H:i:s', $timestamp);
+ } elseif ($timezone == USER) {
+ return preg_replace('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', '$1-$2-$3 $4:$5:$6', $date_string);
+ }
+}
+
+function popuplinks($text) {
+ // Comment text in popup windows should be filtered through this.
+ // Right now it's a moderately dumb function, ideally it would detect whether
+ // a target or rel attribute was already there and adjust its actions accordingly.
+ $text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text);
+ return $text;
+}
+
+function sanitize_email($email) {
+ return preg_replace('/[^a-z0-9+_.@-]/i', '', $email);
+}
+
+function human_time_diff( $from, $to = '' ) {
+ if ( empty($to) )
+ $to = time();
+ $diff = (int) abs($to - $from);
+ if ($diff <= 3600) {
+ $mins = round($diff / 60);
+ if ($mins <= 1)
+ $since = __('1 min');
+ else
+ $since = sprintf( __('%s mins'), $mins);
+ } else if (($diff <= 86400) && ($diff > 3600)) {
+ $hours = round($diff / 3600);
+ if ($hours <= 1)
+ $since = __('1 hour');
+ else
+ $since = sprintf( __('%s hours'), $hours );
+ } elseif ($diff >= 86400) {
+ $days = round($diff / 86400);
+ if ($days <= 1)
+ $since = __('1 day');
+ else
+ $since = sprintf( __('%s days'), $days );
+ }
+ return $since;
+}
+
+function wp_trim_excerpt($text) { // Fakes an excerpt if needed
+ global $post;
+ if ( '' == $text ) {
+ $text = $post->post_content;
+ $text = apply_filters('the_content', $text);
+ $text = str_replace(']]>', ']]&gt;', $text);
+ $text = strip_tags($text);
+ $excerpt_length = 55;
+ $words = explode(' ', $text, $excerpt_length + 1);
+ if (count($words) > $excerpt_length) {
+ array_pop($words);
+ array_push($words, '[...]');
+ $text = implode(' ', $words);
+ }
+ }
+ return $text;
+}
+
+function ent2ncr($text) {
+ $to_ncr = array(
+ '&quot;' => '&#34;',
+ '&amp;' => '&#38;',
+ '&frasl;' => '&#47;',
+ '&lt;' => '&#60;',
+ '&gt;' => '&#62;',
+ '|' => '&#124;',
+ '&nbsp;' => '&#160;',
+ '&iexcl;' => '&#161;',
+ '&cent;' => '&#162;',
+ '&pound;' => '&#163;',
+ '&curren;' => '&#164;',
+ '&yen;' => '&#165;',
+ '&brvbar;' => '&#166;',
+ '&brkbar;' => '&#166;',
+ '&sect;' => '&#167;',
+ '&uml;' => '&#168;',
+ '&die;' => '&#168;',
+ '&copy;' => '&#169;',
+ '&ordf;' => '&#170;',
+ '&laquo;' => '&#171;',
+ '&not;' => '&#172;',
+ '&shy;' => '&#173;',
+ '&reg;' => '&#174;',
+ '&macr;' => '&#175;',
+ '&hibar;' => '&#175;',
+ '&deg;' => '&#176;',
+ '&plusmn;' => '&#177;',
+ '&sup2;' => '&#178;',
+ '&sup3;' => '&#179;',
+ '&acute;' => '&#180;',
+ '&micro;' => '&#181;',
+ '&para;' => '&#182;',
+ '&middot;' => '&#183;',
+ '&cedil;' => '&#184;',
+ '&sup1;' => '&#185;',
+ '&ordm;' => '&#186;',
+ '&raquo;' => '&#187;',
+ '&frac14;' => '&#188;',
+ '&frac12;' => '&#189;',
+ '&frac34;' => '&#190;',
+ '&iquest;' => '&#191;',
+ '&Agrave;' => '&#192;',
+ '&Aacute;' => '&#193;',
+ '&Acirc;' => '&#194;',
+ '&Atilde;' => '&#195;',
+ '&Auml;' => '&#196;',
+ '&Aring;' => '&#197;',
+ '&AElig;' => '&#198;',
+ '&Ccedil;' => '&#199;',
+ '&Egrave;' => '&#200;',
+ '&Eacute;' => '&#201;',
+ '&Ecirc;' => '&#202;',
+ '&Euml;' => '&#203;',
+ '&Igrave;' => '&#204;',
+ '&Iacute;' => '&#205;',
+ '&Icirc;' => '&#206;',
+ '&Iuml;' => '&#207;',
+ '&ETH;' => '&#208;',
+ '&Ntilde;' => '&#209;',
+ '&Ograve;' => '&#210;',
+ '&Oacute;' => '&#211;',
+ '&Ocirc;' => '&#212;',
+ '&Otilde;' => '&#213;',
+ '&Ouml;' => '&#214;',
+ '&times;' => '&#215;',
+ '&Oslash;' => '&#216;',
+ '&Ugrave;' => '&#217;',
+ '&Uacute;' => '&#218;',
+ '&Ucirc;' => '&#219;',
+ '&Uuml;' => '&#220;',
+ '&Yacute;' => '&#221;',
+ '&THORN;' => '&#222;',
+ '&szlig;' => '&#223;',
+ '&agrave;' => '&#224;',
+ '&aacute;' => '&#225;',
+ '&acirc;' => '&#226;',
+ '&atilde;' => '&#227;',
+ '&auml;' => '&#228;',
+ '&aring;' => '&#229;',
+ '&aelig;' => '&#230;',
+ '&ccedil;' => '&#231;',
+ '&egrave;' => '&#232;',
+ '&eacute;' => '&#233;',
+ '&ecirc;' => '&#234;',
+ '&euml;' => '&#235;',
+ '&igrave;' => '&#236;',
+ '&iacute;' => '&#237;',
+ '&icirc;' => '&#238;',
+ '&iuml;' => '&#239;',
+ '&eth;' => '&#240;',
+ '&ntilde;' => '&#241;',
+ '&ograve;' => '&#242;',
+ '&oacute;' => '&#243;',
+ '&ocirc;' => '&#244;',
+ '&otilde;' => '&#245;',
+ '&ouml;' => '&#246;',
+ '&divide;' => '&#247;',
+ '&oslash;' => '&#248;',
+ '&ugrave;' => '&#249;',
+ '&uacute;' => '&#250;',
+ '&ucirc;' => '&#251;',
+ '&uuml;' => '&#252;',
+ '&yacute;' => '&#253;',
+ '&thorn;' => '&#254;',
+ '&yuml;' => '&#255;',
+ '&OElig;' => '&#338;',
+ '&oelig;' => '&#339;',
+ '&Scaron;' => '&#352;',
+ '&scaron;' => '&#353;',
+ '&Yuml;' => '&#376;',
+ '&fnof;' => '&#402;',
+ '&circ;' => '&#710;',
+ '&tilde;' => '&#732;',
+ '&Alpha;' => '&#913;',
+ '&Beta;' => '&#914;',
+ '&Gamma;' => '&#915;',
+ '&Delta;' => '&#916;',
+ '&Epsilon;' => '&#917;',
+ '&Zeta;' => '&#918;',
+ '&Eta;' => '&#919;',
+ '&Theta;' => '&#920;',
+ '&Iota;' => '&#921;',
+ '&Kappa;' => '&#922;',
+ '&Lambda;' => '&#923;',
+ '&Mu;' => '&#924;',
+ '&Nu;' => '&#925;',
+ '&Xi;' => '&#926;',
+ '&Omicron;' => '&#927;',
+ '&Pi;' => '&#928;',
+ '&Rho;' => '&#929;',
+ '&Sigma;' => '&#931;',
+ '&Tau;' => '&#932;',
+ '&Upsilon;' => '&#933;',
+ '&Phi;' => '&#934;',
+ '&Chi;' => '&#935;',
+ '&Psi;' => '&#936;',
+ '&Omega;' => '&#937;',
+ '&alpha;' => '&#945;',
+ '&beta;' => '&#946;',
+ '&gamma;' => '&#947;',
+ '&delta;' => '&#948;',
+ '&epsilon;' => '&#949;',
+ '&zeta;' => '&#950;',
+ '&eta;' => '&#951;',
+ '&theta;' => '&#952;',
+ '&iota;' => '&#953;',
+ '&kappa;' => '&#954;',
+ '&lambda;' => '&#955;',
+ '&mu;' => '&#956;',
+ '&nu;' => '&#957;',
+ '&xi;' => '&#958;',
+ '&omicron;' => '&#959;',
+ '&pi;' => '&#960;',
+ '&rho;' => '&#961;',
+ '&sigmaf;' => '&#962;',
+ '&sigma;' => '&#963;',
+ '&tau;' => '&#964;',
+ '&upsilon;' => '&#965;',
+ '&phi;' => '&#966;',
+ '&chi;' => '&#967;',
+ '&psi;' => '&#968;',
+ '&omega;' => '&#969;',
+ '&thetasym;' => '&#977;',
+ '&upsih;' => '&#978;',
+ '&piv;' => '&#982;',
+ '&ensp;' => '&#8194;',
+ '&emsp;' => '&#8195;',
+ '&thinsp;' => '&#8201;',
+ '&zwnj;' => '&#8204;',
+ '&zwj;' => '&#8205;',
+ '&lrm;' => '&#8206;',
+ '&rlm;' => '&#8207;',
+ '&ndash;' => '&#8211;',
+ '&mdash;' => '&#8212;',
+ '&lsquo;' => '&#8216;',
+ '&rsquo;' => '&#8217;',
+ '&sbquo;' => '&#8218;',
+ '&ldquo;' => '&#8220;',
+ '&rdquo;' => '&#8221;',
+ '&bdquo;' => '&#8222;',
+ '&dagger;' => '&#8224;',
+ '&Dagger;' => '&#8225;',
+ '&bull;' => '&#8226;',
+ '&hellip;' => '&#8230;',
+ '&permil;' => '&#8240;',
+ '&prime;' => '&#8242;',
+ '&Prime;' => '&#8243;',
+ '&lsaquo;' => '&#8249;',
+ '&rsaquo;' => '&#8250;',
+ '&oline;' => '&#8254;',
+ '&frasl;' => '&#8260;',
+ '&euro;' => '&#8364;',
+ '&image;' => '&#8465;',
+ '&weierp;' => '&#8472;',
+ '&real;' => '&#8476;',
+ '&trade;' => '&#8482;',
+ '&alefsym;' => '&#8501;',
+ '&crarr;' => '&#8629;',
+ '&lArr;' => '&#8656;',
+ '&uArr;' => '&#8657;',
+ '&rArr;' => '&#8658;',
+ '&dArr;' => '&#8659;',
+ '&hArr;' => '&#8660;',
+ '&forall;' => '&#8704;',
+ '&part;' => '&#8706;',
+ '&exist;' => '&#8707;',
+ '&empty;' => '&#8709;',
+ '&nabla;' => '&#8711;',
+ '&isin;' => '&#8712;',
+ '&notin;' => '&#8713;',
+ '&ni;' => '&#8715;',
+ '&prod;' => '&#8719;',
+ '&sum;' => '&#8721;',
+ '&minus;' => '&#8722;',
+ '&lowast;' => '&#8727;',
+ '&radic;' => '&#8730;',
+ '&prop;' => '&#8733;',
+ '&infin;' => '&#8734;',
+ '&ang;' => '&#8736;',
+ '&and;' => '&#8743;',
+ '&or;' => '&#8744;',
+ '&cap;' => '&#8745;',
+ '&cup;' => '&#8746;',
+ '&int;' => '&#8747;',
+ '&there4;' => '&#8756;',
+ '&sim;' => '&#8764;',
+ '&cong;' => '&#8773;',
+ '&asymp;' => '&#8776;',
+ '&ne;' => '&#8800;',
+ '&equiv;' => '&#8801;',
+ '&le;' => '&#8804;',
+ '&ge;' => '&#8805;',
+ '&sub;' => '&#8834;',
+ '&sup;' => '&#8835;',
+ '&nsub;' => '&#8836;',
+ '&sube;' => '&#8838;',
+ '&supe;' => '&#8839;',
+ '&oplus;' => '&#8853;',
+ '&otimes;' => '&#8855;',
+ '&perp;' => '&#8869;',
+ '&sdot;' => '&#8901;',
+ '&lceil;' => '&#8968;',
+ '&rceil;' => '&#8969;',
+ '&lfloor;' => '&#8970;',
+ '&rfloor;' => '&#8971;',
+ '&lang;' => '&#9001;',
+ '&rang;' => '&#9002;',
+ '&larr;' => '&#8592;',
+ '&uarr;' => '&#8593;',
+ '&rarr;' => '&#8594;',
+ '&darr;' => '&#8595;',
+ '&harr;' => '&#8596;',
+ '&loz;' => '&#9674;',
+ '&spades;' => '&#9824;',
+ '&clubs;' => '&#9827;',
+ '&hearts;' => '&#9829;',
+ '&diams;' => '&#9830;'
+ );
+
+ return str_replace( array_keys($to_ncr), array_values($to_ncr), $text );
+}
+
+function wp_richedit_pre($text) {
+ // Filtering a blank results in an annoying <br />\n
+ if ( empty($text) ) return apply_filters('richedit_pre', '');
+
+ $output = $text;
+ $output = convert_chars($output);
+ $output = wpautop($output);
+
+ // These must be double-escaped or planets will collide.
+ $output = str_replace('&lt;', '&amp;lt;', $output);
+ $output = str_replace('&gt;', '&amp;gt;', $output);
+
+ return apply_filters('richedit_pre', $output);
+}
+
+function clean_url( $url ) {
+ if ('' == $url) return $url;
+ $url = preg_replace('|[^a-z0-9-~+_.?#=&;,/:]|i', '', $url);
+ $url = str_replace(';//', '://', $url);
+ $url = (!strstr($url, '://')) ? 'http://'.$url : $url;
+ $url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&#038;$1', $url);
+ return $url;
+}
+
+// Borrowed from the PHP Manual user notes. Convert entities, while
+// preserving already-encoded entities:
+function htmlentities2($myHTML) {
+ $translation_table=get_html_translation_table (HTML_ENTITIES,ENT_QUOTES);
+ $translation_table[chr(38)] = '&';
+ return preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/","&amp;" , strtr($myHTML, $translation_table));
+}
+
+// Escape single quotes, specialchar double quotes, and fix line endings.
+function js_escape($text) {
+ $text = wp_specialchars($text, 'double');
+ return preg_replace("/\r?\n/", "\\n", addslashes($text));
+}
+?>