3 function wptexturize($text) {
4 global $wp_cockneyreplace;
6 // Capture tags and everything inside them
7 $textarr = preg_split("/(<.*>)/Us", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
8 $stop = count($textarr); $next = true; // loop stuff
9 for ($i = 0; $i < $stop; $i++) {
12 if (isset($curl{0}) && '<' != $curl{0} && $next) { // If it's not a tag
13 $curl = str_replace('---', '—', $curl);
14 $curl = str_replace(' -- ', ' — ', $curl);
15 $curl = str_replace('--', '–', $curl);
16 $curl = str_replace('xn–', 'xn--', $curl);
17 $curl = str_replace('...', '…', $curl);
18 $curl = str_replace('``', '“', $curl);
20 // if a plugin has provided an autocorrect array, use it
21 if ( isset($wp_cockneyreplace) ) {
22 $cockney = array_keys($wp_cockneyreplace);
23 $cockney_replace = array_values($wp_cockneyreplace);
25 $cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round","'cause");
26 $cockneyreplace = array("’tain’t","’twere","’twas","’tis","’twill","’til","’bout","’nuff","’round","’cause");
29 $curl = str_replace($cockney, $cockneyreplace, $curl);
31 $curl = preg_replace("/'s/", '’s', $curl);
32 $curl = preg_replace("/'(\d\d(?:’|')?s)/", "’$1", $curl);
33 $curl = preg_replace('/(\s|\A|")\'/', '$1‘', $curl);
34 $curl = preg_replace('/(\d+)"/', '$1″', $curl);
35 $curl = preg_replace("/(\d+)'/", '$1′', $curl);
36 $curl = preg_replace("/(\S)'([^'\s])/", "$1’$2", $curl);
37 $curl = preg_replace('/(\s|\A)"(?!\s)/', '$1“$2', $curl);
38 $curl = preg_replace('/"(\s|\S|\Z)/', '”$1', $curl);
39 $curl = preg_replace("/'([\s.]|\Z)/", '’$1', $curl);
40 $curl = preg_replace("/ \(tm\)/i", ' ™', $curl);
41 $curl = str_replace("''", '”', $curl);
43 $curl = preg_replace('/(\d+)x(\d+)/', "$1×$2", $curl);
45 } elseif (strstr($curl, '<code') || strstr($curl, '<pre') || strstr($curl, '<kbd' || strstr($curl, '<style') || strstr($curl, '<script'))) {
51 $curl = preg_replace('/&([^#])(?![a-zA-Z1-4]{1,8};)/', '&$1', $curl);
57 function clean_pre($text) {
58 $text = str_replace('<br />', '', $text);
59 $text = str_replace('<p>', "\n", $text);
60 $text = str_replace('</p>', '', $text);
64 function wpautop($pee, $br = 1) {
65 $pee = $pee . "\n"; // just to make things a little easier, pad the end
66 $pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
67 // Space things out a little
68 $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);
69 $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);
70 $pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
71 $pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates
72 $pee = preg_replace('/\n?(.+?)(?:\n\s*\n|\z)/s', "<p>$1</p>\n", $pee); // make paragraphs, including one at the end
73 $pee = preg_replace('|<p>\s*?</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace
74 $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
75 $pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists
76 $pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee);
77 $pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee);
78 $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);
79 $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", $pee);
80 if ($br) $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
81 $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);
82 $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee);
83 $pee = preg_replace('!(<pre.*?>)(.*?)</pre>!ise', " stripslashes('$1') . stripslashes(clean_pre('$2')) . '</pre>' ", $pee);
89 function seems_utf8($Str) { # by bmorel at ssi dot fr
90 for ($i=0; $i<strlen($Str); $i++) {
91 if (ord($Str[$i]) < 0x80) continue; # 0bbbbbbb
92 elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
93 elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
94 elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
95 elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
96 elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
97 else return false; # Does not match any model
98 for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
99 if ((++$i == strlen($Str)) || ((ord($Str[$i]) & 0xC0) != 0x80))
106 function wp_specialchars( $text, $quotes = 0 ) {
107 // Like htmlspecialchars except don't double-encode HTML entities
108 $text = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/', '&$1', $text);
109 $text = str_replace('<', '<', $text);
110 $text = str_replace('>', '>', $text);
111 if ( 'double' === $quotes ) {
112 $text = str_replace('"', '"', $text);
113 } elseif ( 'single' === $quotes ) {
114 $text = str_replace("'", ''', $text);
115 } elseif ( $quotes ) {
116 $text = str_replace('"', '"', $text);
117 $text = str_replace("'", ''', $text);
122 function utf8_uri_encode( $utf8_string ) {
127 for ($i = 0; $i < strlen( $utf8_string ); $i++ ) {
129 $value = ord( $utf8_string[ $i ] );
131 if ( $value < 128 ) {
132 $unicode .= chr($value);
134 if ( count( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3;
138 if ( count( $values ) == $num_octets ) {
139 if ($num_octets == 3) {
140 $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]) . '%' . dechex($values[2]);
142 $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]);
154 function remove_accents($string) {
155 if ( !preg_match('/[\x80-\xff]/', $string) )
158 if (seems_utf8($string)) {
160 // Decompositions for Latin-1 Supplement
161 chr(195).chr(128) => 'A', chr(195).chr(129) => 'A',
162 chr(195).chr(130) => 'A', chr(195).chr(131) => 'A',
163 chr(195).chr(132) => 'A', chr(195).chr(133) => 'A',
164 chr(195).chr(135) => 'C', chr(195).chr(136) => 'E',
165 chr(195).chr(137) => 'E', chr(195).chr(138) => 'E',
166 chr(195).chr(139) => 'E', chr(195).chr(140) => 'I',
167 chr(195).chr(141) => 'I', chr(195).chr(142) => 'I',
168 chr(195).chr(143) => 'I', chr(195).chr(145) => 'N',
169 chr(195).chr(146) => 'O', chr(195).chr(147) => 'O',
170 chr(195).chr(148) => 'O', chr(195).chr(149) => 'O',
171 chr(195).chr(150) => 'O', chr(195).chr(153) => 'U',
172 chr(195).chr(154) => 'U', chr(195).chr(155) => 'U',
173 chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y',
174 chr(195).chr(159) => 's', chr(195).chr(160) => 'a',
175 chr(195).chr(161) => 'a', chr(195).chr(162) => 'a',
176 chr(195).chr(163) => 'a', chr(195).chr(164) => 'a',
177 chr(195).chr(165) => 'a', chr(195).chr(167) => 'c',
178 chr(195).chr(168) => 'e', chr(195).chr(169) => 'e',
179 chr(195).chr(170) => 'e', chr(195).chr(171) => 'e',
180 chr(195).chr(172) => 'i', chr(195).chr(173) => 'i',
181 chr(195).chr(174) => 'i', chr(195).chr(175) => 'i',
182 chr(195).chr(177) => 'n', chr(195).chr(178) => 'o',
183 chr(195).chr(179) => 'o', chr(195).chr(180) => 'o',
184 chr(195).chr(181) => 'o', chr(195).chr(182) => 'o',
185 chr(195).chr(182) => 'o', chr(195).chr(185) => 'u',
186 chr(195).chr(186) => 'u', chr(195).chr(187) => 'u',
187 chr(195).chr(188) => 'u', chr(195).chr(189) => 'y',
188 chr(195).chr(191) => 'y',
189 // Decompositions for Latin Extended-A
190 chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',
191 chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',
192 chr(196).chr(132) => 'A', chr(196).chr(133) => 'a',
193 chr(196).chr(134) => 'C', chr(196).chr(135) => 'c',
194 chr(196).chr(136) => 'C', chr(196).chr(137) => 'c',
195 chr(196).chr(138) => 'C', chr(196).chr(139) => 'c',
196 chr(196).chr(140) => 'C', chr(196).chr(141) => 'c',
197 chr(196).chr(142) => 'D', chr(196).chr(143) => 'd',
198 chr(196).chr(144) => 'D', chr(196).chr(145) => 'd',
199 chr(196).chr(146) => 'E', chr(196).chr(147) => 'e',
200 chr(196).chr(148) => 'E', chr(196).chr(149) => 'e',
201 chr(196).chr(150) => 'E', chr(196).chr(151) => 'e',
202 chr(196).chr(152) => 'E', chr(196).chr(153) => 'e',
203 chr(196).chr(154) => 'E', chr(196).chr(155) => 'e',
204 chr(196).chr(156) => 'G', chr(196).chr(157) => 'g',
205 chr(196).chr(158) => 'G', chr(196).chr(159) => 'g',
206 chr(196).chr(160) => 'G', chr(196).chr(161) => 'g',
207 chr(196).chr(162) => 'G', chr(196).chr(163) => 'g',
208 chr(196).chr(164) => 'H', chr(196).chr(165) => 'h',
209 chr(196).chr(166) => 'H', chr(196).chr(167) => 'h',
210 chr(196).chr(168) => 'I', chr(196).chr(169) => 'i',
211 chr(196).chr(170) => 'I', chr(196).chr(171) => 'i',
212 chr(196).chr(172) => 'I', chr(196).chr(173) => 'i',
213 chr(196).chr(174) => 'I', chr(196).chr(175) => 'i',
214 chr(196).chr(176) => 'I', chr(196).chr(177) => 'i',
215 chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij',
216 chr(196).chr(180) => 'J', chr(196).chr(181) => 'j',
217 chr(196).chr(182) => 'K', chr(196).chr(183) => 'k',
218 chr(196).chr(184) => 'k', chr(196).chr(185) => 'L',
219 chr(196).chr(186) => 'l', chr(196).chr(187) => 'L',
220 chr(196).chr(188) => 'l', chr(196).chr(189) => 'L',
221 chr(196).chr(190) => 'l', chr(196).chr(191) => 'L',
222 chr(197).chr(128) => 'l', chr(197).chr(129) => 'L',
223 chr(197).chr(130) => 'l', chr(197).chr(131) => 'N',
224 chr(197).chr(132) => 'n', chr(197).chr(133) => 'N',
225 chr(197).chr(134) => 'n', chr(197).chr(135) => 'N',
226 chr(197).chr(136) => 'n', chr(197).chr(137) => 'N',
227 chr(197).chr(138) => 'n', chr(197).chr(139) => 'N',
228 chr(197).chr(140) => 'O', chr(197).chr(141) => 'o',
229 chr(197).chr(142) => 'O', chr(197).chr(143) => 'o',
230 chr(197).chr(144) => 'O', chr(197).chr(145) => 'o',
231 chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe',
232 chr(197).chr(148) => 'R',chr(197).chr(149) => 'r',
233 chr(197).chr(150) => 'R',chr(197).chr(151) => 'r',
234 chr(197).chr(152) => 'R',chr(197).chr(153) => 'r',
235 chr(197).chr(154) => 'S',chr(197).chr(155) => 's',
236 chr(197).chr(156) => 'S',chr(197).chr(157) => 's',
237 chr(197).chr(158) => 'S',chr(197).chr(159) => 's',
238 chr(197).chr(160) => 'S', chr(197).chr(161) => 's',
239 chr(197).chr(162) => 'T', chr(197).chr(163) => 't',
240 chr(197).chr(164) => 'T', chr(197).chr(165) => 't',
241 chr(197).chr(166) => 'T', chr(197).chr(167) => 't',
242 chr(197).chr(168) => 'U', chr(197).chr(169) => 'u',
243 chr(197).chr(170) => 'U', chr(197).chr(171) => 'u',
244 chr(197).chr(172) => 'U', chr(197).chr(173) => 'u',
245 chr(197).chr(174) => 'U', chr(197).chr(175) => 'u',
246 chr(197).chr(176) => 'U', chr(197).chr(177) => 'u',
247 chr(197).chr(178) => 'U', chr(197).chr(179) => 'u',
248 chr(197).chr(180) => 'W', chr(197).chr(181) => 'w',
249 chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y',
250 chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z',
251 chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',
252 chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',
253 chr(197).chr(190) => 'z', chr(197).chr(191) => 's',
255 chr(226).chr(130).chr(172) => 'E',
257 chr(194).chr(163) => '');
259 $string = strtr($string, $chars);
261 // Assume ISO-8859-1 if not UTF-8
262 $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158)
263 .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194)
264 .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202)
265 .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210)
266 .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218)
267 .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227)
268 .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235)
269 .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243)
270 .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251)
271 .chr(252).chr(253).chr(255);
273 $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";
275 $string = strtr($string, $chars['in'], $chars['out']);
276 $double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254));
277 $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th');
278 $string = str_replace($double_chars['in'], $double_chars['out'], $string);
284 function sanitize_user( $username, $strict = false ) {
285 $raw_username = $username;
286 $username = strip_tags($username);
288 $username = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '', $username);
289 $username = preg_replace('/&.+?;/', '', $username); // Kill entities
291 // If strict, reduce to ASCII for max portability.
293 $username = preg_replace('|[^a-z0-9 _.\-@]|i', '', $username);
295 return apply_filters('sanitize_user', $username, $raw_username, $strict);
298 function sanitize_title($title, $fallback_title = '') {
299 $title = strip_tags($title);
300 $title = apply_filters('sanitize_title', $title);
303 $title = $fallback_title;
309 function sanitize_title_with_dashes($title) {
310 $title = strip_tags($title);
311 // Preserve escaped octets.
312 $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
313 // Remove percent signs that are not part of an octet.
314 $title = str_replace('%', '', $title);
316 $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);
318 $title = remove_accents($title);
319 if (seems_utf8($title)) {
320 if (function_exists('mb_strtolower')) {
321 $title = mb_strtolower($title, 'UTF-8');
323 $title = utf8_uri_encode($title);
326 $title = strtolower($title);
327 $title = preg_replace('/&.+?;/', '', $title); // kill entities
328 $title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
329 $title = preg_replace('/\s+/', '-', $title);
330 $title = preg_replace('|-+|', '-', $title);
331 $title = trim($title, '-');
336 function convert_chars($content, $flag = 'obsolete') {
337 // Translation of invalid Unicode references range to valid range
338 $wp_htmltranswinuni = array(
339 '€' => '€', // the Euro sign
341 '‚' => '‚', // these are Windows CP1252 specific characters
342 'ƒ' => 'ƒ', // they would look weird on non-Windows browsers
343 '„' => '„',
344 '…' => '…',
345 '†' => '†',
346 '‡' => '‡',
347 'ˆ' => 'ˆ',
348 '‰' => '‰',
349 'Š' => 'Š',
350 '‹' => '‹',
351 'Œ' => 'Œ',
353 'Ž' => 'ž',
356 '‘' => '‘',
357 '’' => '’',
358 '“' => '“',
359 '”' => '”',
360 '•' => '•',
361 '–' => '–',
362 '—' => '—',
363 '˜' => '˜',
364 '™' => '™',
365 'š' => 'š',
366 '›' => '›',
367 'œ' => 'œ',
373 // Remove metadata tags
374 $content = preg_replace('/<title>(.+?)<\/title>/','',$content);
375 $content = preg_replace('/<category>(.+?)<\/category>/','',$content);
377 // Converts lone & characters into & (a.k.a. &)
378 $content = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/i', '&$1', $content);
381 $content = strtr($content, $wp_htmltranswinuni);
383 // Just a little XHTML help
384 $content = str_replace('<br>', '<br />', $content);
385 $content = str_replace('<hr>', '<hr />', $content);
390 function funky_javascript_fix($text) {
391 // Fixes for browsers' javascript bugs
392 global $is_macIE, $is_winIE;
394 if ( $is_winIE || $is_macIE )
395 $text = preg_replace("/\%u([0-9A-F]{4,4})/e", "'&#'.base_convert('\\1',16,10).';'", $text);
403 Balances Tags of string using a modified stack.
405 @param text Text to be balanced
406 @param force Forces balancing, ignoring the value of the option
407 @return Returns balanced text
408 @author Leonard Lin (leonard@acm.org)
410 @date November 4, 2001
414 --- Modified by Scott Reilly (coffee2code) 02 Aug 2004
415 1.2 ***TODO*** Make better - change loop condition to $text
416 1.1 Fixed handling of append/stack pop order of end text
420 function balanceTags($text, $force = false) {
422 if ( !$force && get_option('use_balanceTags') == 0 )
425 $tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = '';
427 # WP bug fix for comments - in case you REALLY meant to type '< !--'
428 $text = str_replace('< !--', '< !--', $text);
429 # WP bug fix for LOVE <3 (and other situations with '<' before a number)
430 $text = preg_replace('#<([0-9]{1})#', '<$1', $text);
432 while (preg_match("/<(\/?\w*)\s*([^>]*)>/",$text,$regex)) {
433 $newtext .= $tagqueue;
435 $i = strpos($text,$regex[0]);
436 $l = strlen($regex[0]);
441 if ($regex[1][0] == "/") { // End Tag
442 $tag = strtolower(substr($regex[1],1));
443 // if too many closing tags
444 if($stacksize <= 0) {
446 //or close to be safe $tag = '/' . $tag;
448 // if stacktop value = tag close value then pop
449 else if ($tagstack[$stacksize - 1] == $tag) { // found closing tag
450 $tag = '</' . $tag . '>'; // Close Tag
452 array_pop ($tagstack);
454 } else { // closing tag not at top, search for it
455 for ($j=$stacksize-1;$j>=0;$j--) {
456 if ($tagstack[$j] == $tag) {
457 // add tag to tagqueue
458 for ($k=$stacksize-1;$k>=$j;$k--){
459 $tagqueue .= '</' . array_pop ($tagstack) . '>';
467 } else { // Begin Tag
468 $tag = strtolower($regex[1]);
472 // If self-closing or '', don't do anything.
473 if((substr($regex[2],-1) == '/') || ($tag == '')) {
475 // ElseIf it's a known single-entity tag but it doesn't close itself, do so
476 elseif ($tag == 'br' || $tag == 'img' || $tag == 'hr' || $tag == 'input') {
478 } else { // Push the tag onto the stack
479 // If the top of the stack is the same as the tag we want to push, close previous tag
480 if (($stacksize > 0) && ($tag != 'div') && ($tagstack[$stacksize - 1] == $tag)) {
481 $tagqueue = '</' . array_pop ($tagstack) . '>';
484 $stacksize = array_push ($tagstack, $tag);
488 $attributes = $regex[2];
490 $attributes = ' '.$attributes;
492 $tag = '<'.$tag.$attributes.'>';
493 //If already queuing a close tag, then put this tag on, too
499 $newtext .= substr($text,0,$i) . $tag;
500 $text = substr($text,$i+$l);
504 $newtext .= $tagqueue;
506 // Add Remaining text
510 while($x = array_pop($tagstack)) {
511 $newtext .= '</' . $x . '>'; // Add remaining tags to close
514 // WP fix for the bug with HTML comments
515 $newtext = str_replace("< !--","<!--",$newtext);
516 $newtext = str_replace("< !--","< !--",$newtext);
521 function force_balance_tags($text) {
522 return balanceTags($text, true);
525 function format_to_edit($content, $richedit = false) {
526 $content = apply_filters('format_to_edit', $content);
528 $content = htmlspecialchars($content);
532 function format_to_post($content) {
534 $content = apply_filters('format_to_post', $content);
538 function zeroise($number,$threshold) { // function to add leading zeros when necessary
539 return sprintf('%0'.$threshold.'s', $number);
543 function backslashit($string) {
544 $string = preg_replace('/^([0-9])/', '\\\\\\\\\1', $string);
545 $string = preg_replace('/([a-z])/i', '\\\\\1', $string);
549 function trailingslashit($string) {
550 if ( '/' != substr($string, -1)) {
556 function addslashes_gpc($gpc) {
559 if (get_magic_quotes_gpc()) {
560 $gpc = stripslashes($gpc);
563 return $wpdb->escape($gpc);
567 function stripslashes_deep($value)
569 $value = is_array($value) ?
570 array_map('stripslashes_deep', $value) :
571 stripslashes($value);
576 function antispambot($emailaddy, $mailto=0) {
577 $emailNOSPAMaddy = '';
578 srand ((float) microtime() * 1000000);
579 for ($i = 0; $i < strlen($emailaddy); $i = $i + 1) {
580 $j = floor(rand(0, 1+$mailto));
582 $emailNOSPAMaddy .= '&#'.ord(substr($emailaddy,$i,1)).';';
584 $emailNOSPAMaddy .= substr($emailaddy,$i,1);
586 $emailNOSPAMaddy .= '%'.zeroise(dechex(ord(substr($emailaddy, $i, 1))), 2);
589 $emailNOSPAMaddy = str_replace('@','@',$emailNOSPAMaddy);
590 return $emailNOSPAMaddy;
593 function make_clickable($ret) {
595 // in testing, using arrays here was found to be faster
598 '#([\s>])([\w]+?://[\w\#$%&~/.\-;:=,?@\[\]+]*)#is',
599 '#([\s>])((www|ftp)\.[\w\#$%&~/.\-;:=,?@\[\]+]*)#is',
600 '#([\s>])([a-z0-9\-_.]+)@([^,< \n\r]+)#i'),
602 '$1<a href="$2" rel="nofollow">$2</a>',
603 '$1<a href="http://$2" rel="nofollow">$2</a>',
604 '$1<a href="mailto:$2@$3">$2@$3</a>'),$ret);
605 // this one is not in an array because we need it to run last, for cleanup of accidental links within links
606 $ret = preg_replace("#(<a( [^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i", "$1$3</a>", $ret);
611 function wp_rel_nofollow( $text ) {
612 $text = preg_replace('|<a (.+?)>|ie', "'<a ' . str_replace(' rel=\"nofollow\"','',stripslashes('$1')) . ' rel=\"nofollow\">'", $text);
616 function convert_smilies($text) {
617 global $wp_smiliessearch, $wp_smiliesreplace;
619 if (get_settings('use_smilies')) {
620 // HTML loop taken from texturize function, could possible be consolidated
621 $textarr = preg_split("/(<.*>)/U", $text, -1, PREG_SPLIT_DELIM_CAPTURE); // capture the tags as well as in between
622 $stop = count($textarr);// loop stuff
623 for ($i = 0; $i < $stop; $i++) {
624 $content = $textarr[$i];
625 if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag
626 $content = str_replace($wp_smiliessearch, $wp_smiliesreplace, $content);
631 // return default text.
638 function is_email($user_email) {
639 $chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i";
640 if(strstr($user_email, '@') && strstr($user_email, '.')) {
641 if (preg_match($chars, $user_email)) {
651 // used by wp-mail to handle charsets in email subjects
652 function wp_iso_descrambler($string) {
653 /* this may only work with iso-8859-1, I'm afraid */
654 if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) {
657 $subject = str_replace('_', ' ', $matches[2]);
658 $subject = preg_replace('#\=([0-9a-f]{2})#ei', "chr(hexdec(strtolower('$1')))", $subject);
664 // give it a date, it will give you the same date as GMT
665 function get_gmt_from_date($string) {
666 // note: this only substracts $time_difference from the given date
667 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);
668 $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
669 $string_gmt = gmdate('Y-m-d H:i:s', $string_time - get_settings('gmt_offset') * 3600);
673 // give it a GMT date, it will give you the same date with $time_difference added
674 function get_date_from_gmt($string) {
675 // note: this only adds $time_difference to the given date
676 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);
677 $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
678 $string_localtime = gmdate('Y-m-d H:i:s', $string_time + get_settings('gmt_offset')*3600);
679 return $string_localtime;
682 // computes an offset in seconds from an iso8601 timezone
683 function iso8601_timezone_to_offset($timezone) {
684 // $timezone is either 'Z' or '[+|-]hhmm'
685 if ($timezone == 'Z') {
688 $sign = (substr($timezone, 0, 1) == '+') ? 1 : -1;
689 $hours = intval(substr($timezone, 1, 2));
690 $minutes = intval(substr($timezone, 3, 4)) / 60;
691 $offset = $sign * 3600 * ($hours + $minutes);
696 // converts an iso8601 date to MySQL DateTime format used by post_date[_gmt]
697 function iso8601_to_datetime($date_string, $timezone = USER) {
698 if ($timezone == GMT) {
699 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, $date_bits);
700 if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset
701 $offset = iso8601_timezone_to_offset($date_bits[7]);
702 } else { // we don't have a timezone, so we assume user local timezone (not server's!)
703 $offset = 3600 * get_settings('gmt_offset');
705 $timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]);
706 $timestamp -= $offset;
707 return gmdate('Y-m-d H:i:s', $timestamp);
708 } elseif ($timezone == USER) {
709 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', $date_string);
713 function popuplinks($text) {
714 // Comment text in popup windows should be filtered through this.
715 // Right now it's a moderately dumb function, ideally it would detect whether
716 // a target or rel attribute was already there and adjust its actions accordingly.
717 $text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text);
721 function sanitize_email($email) {
722 return preg_replace('/[^a-z0-9+_.@-]/i', '', $email);
725 function human_time_diff( $from, $to = '' ) {
728 $diff = (int) abs($to - $from);
730 $mins = round($diff / 60);
732 $since = __('1 min');
734 $since = sprintf( __('%s mins'), $mins);
735 } else if (($diff <= 86400) && ($diff > 3600)) {
736 $hours = round($diff / 3600);
738 $since = __('1 hour');
740 $since = sprintf( __('%s hours'), $hours );
741 } elseif ($diff >= 86400) {
742 $days = round($diff / 86400);
744 $since = __('1 day');
746 $since = sprintf( __('%s days'), $days );
751 function wp_trim_excerpt($text) { // Fakes an excerpt if needed
754 $text = $post->post_content;
755 $text = apply_filters('the_content', $text);
756 $text = str_replace(']]>', ']]>', $text);
757 $text = strip_tags($text);
758 $excerpt_length = 55;
759 $words = explode(' ', $text, $excerpt_length + 1);
760 if (count($words) > $excerpt_length) {
762 array_push($words, '[...]');
763 $text = implode(' ', $words);
769 function ent2ncr($text) {
773 '⁄' => '/',
777 ' ' => ' ',
778 '¡' => '¡',
779 '¢' => '¢',
780 '£' => '£',
781 '¤' => '¤',
783 '¦' => '¦',
784 '&brkbar;' => '¦',
785 '§' => '§',
788 '©' => '©',
789 'ª' => 'ª',
790 '«' => '«',
794 '¯' => '¯',
795 '&hibar;' => '¯',
797 '±' => '±',
798 '²' => '²',
799 '³' => '³',
800 '´' => '´',
801 'µ' => 'µ',
802 '¶' => '¶',
803 '·' => '·',
804 '¸' => '¸',
805 '¹' => '¹',
806 'º' => 'º',
807 '»' => '»',
808 '¼' => '¼',
809 '½' => '½',
810 '¾' => '¾',
811 '¿' => '¿',
812 'À' => 'À',
813 'Á' => 'Á',
814 'Â' => 'Â',
815 'Ã' => 'Ã',
816 'Ä' => 'Ä',
817 'Å' => 'Å',
818 'Æ' => 'Æ',
819 'Ç' => 'Ç',
820 'È' => 'È',
821 'É' => 'É',
822 'Ê' => 'Ê',
823 'Ë' => 'Ë',
824 'Ì' => 'Ì',
825 'Í' => 'Í',
826 'Î' => 'Î',
827 'Ï' => 'Ï',
829 'Ñ' => 'Ñ',
830 'Ò' => 'Ò',
831 'Ó' => 'Ó',
832 'Ô' => 'Ô',
833 'Õ' => 'Õ',
834 'Ö' => 'Ö',
835 '×' => '×',
836 'Ø' => 'Ø',
837 'Ù' => 'Ù',
838 'Ú' => 'Ú',
839 'Û' => 'Û',
840 'Ü' => 'Ü',
841 'Ý' => 'Ý',
842 'Þ' => 'Þ',
843 'ß' => 'ß',
844 'à' => 'à',
845 'á' => 'á',
846 'â' => 'â',
847 'ã' => 'ã',
848 'ä' => 'ä',
849 'å' => 'å',
850 'æ' => 'æ',
851 'ç' => 'ç',
852 'è' => 'è',
853 'é' => 'é',
854 'ê' => 'ê',
855 'ë' => 'ë',
856 'ì' => 'ì',
857 'í' => 'í',
858 'î' => 'î',
859 'ï' => 'ï',
861 'ñ' => 'ñ',
862 'ò' => 'ò',
863 'ó' => 'ó',
864 'ô' => 'ô',
865 'õ' => 'õ',
866 'ö' => 'ö',
867 '÷' => '÷',
868 'ø' => 'ø',
869 'ù' => 'ù',
870 'ú' => 'ú',
871 'û' => 'û',
872 'ü' => 'ü',
873 'ý' => 'ý',
874 'þ' => 'þ',
875 'ÿ' => 'ÿ',
876 'Œ' => 'Œ',
877 'œ' => 'œ',
878 'Š' => 'Š',
879 'š' => 'š',
880 'Ÿ' => 'Ÿ',
881 'ƒ' => 'ƒ',
882 'ˆ' => 'ˆ',
883 '˜' => '˜',
884 'Α' => 'Α',
885 'Β' => 'Β',
886 'Γ' => 'Γ',
887 'Δ' => 'Δ',
888 'Ε' => 'Ε',
889 'Ζ' => 'Ζ',
891 'Θ' => 'Θ',
892 'Ι' => 'Ι',
893 'Κ' => 'Κ',
894 'Λ' => 'Λ',
898 'Ο' => 'Ο',
901 'Σ' => 'Σ',
903 'Υ' => 'Υ',
907 'Ω' => 'Ω',
908 'α' => 'α',
909 'β' => 'β',
910 'γ' => 'γ',
911 'δ' => 'δ',
912 'ε' => 'ε',
913 'ζ' => 'ζ',
915 'θ' => 'θ',
916 'ι' => 'ι',
917 'κ' => 'κ',
918 'λ' => 'λ',
922 'ο' => 'ο',
925 'ς' => 'ς',
926 'σ' => 'σ',
928 'υ' => 'υ',
932 'ω' => 'ω',
933 'ϑ' => 'ϑ',
934 'ϒ' => 'ϒ',
936 ' ' => ' ',
937 ' ' => ' ',
938 ' ' => ' ',
939 '‌' => '‌',
940 '‍' => '‍',
941 '‎' => '‎',
942 '‏' => '‏',
943 '–' => '–',
944 '—' => '—',
945 '‘' => '‘',
946 '’' => '’',
947 '‚' => '‚',
948 '“' => '“',
949 '”' => '”',
950 '„' => '„',
951 '†' => '†',
952 '‡' => '‡',
953 '•' => '•',
954 '…' => '…',
955 '‰' => '‰',
956 '′' => '′',
957 '″' => '″',
958 '‹' => '‹',
959 '›' => '›',
960 '‾' => '‾',
961 '⁄' => '⁄',
962 '€' => '€',
963 'ℑ' => 'ℑ',
964 '℘' => '℘',
965 'ℜ' => 'ℜ',
966 '™' => '™',
967 'ℵ' => 'ℵ',
968 '↵' => '↵',
969 '⇐' => '⇐',
970 '⇑' => '⇑',
971 '⇒' => '⇒',
972 '⇓' => '⇓',
973 '⇔' => '⇔',
974 '∀' => '∀',
975 '∂' => '∂',
976 '∃' => '∃',
977 '∅' => '∅',
978 '∇' => '∇',
979 '∈' => '∈',
980 '∉' => '∉',
982 '∏' => '∏',
983 '∑' => '∑',
984 '−' => '−',
985 '∗' => '∗',
986 '√' => '√',
987 '∝' => '∝',
988 '∞' => '∞',
989 '∠' => '∠',
990 '∧' => '∧',
992 '∩' => '∩',
993 '∪' => '∪',
994 '∫' => '∫',
995 '∴' => '∴',
996 '∼' => '∼',
997 '≅' => '≅',
998 '≈' => '≈',
1000 '≡' => '≡',
1001 '≤' => '≤',
1002 '≥' => '≥',
1003 '⊂' => '⊂',
1004 '⊃' => '⊃',
1005 '⊄' => '⊄',
1006 '⊆' => '⊆',
1007 '⊇' => '⊇',
1008 '⊕' => '⊕',
1009 '⊗' => '⊗',
1010 '⊥' => '⊥',
1011 '⋅' => '⋅',
1012 '⌈' => '⌈',
1013 '⌉' => '⌉',
1014 '⌊' => '⌊',
1015 '⌋' => '⌋',
1016 '⟨' => '〈',
1017 '⟩' => '〉',
1018 '←' => '←',
1019 '↑' => '↑',
1020 '→' => '→',
1021 '↓' => '↓',
1022 '↔' => '↔',
1023 '◊' => '◊',
1024 '♠' => '♠',
1025 '♣' => '♣',
1026 '♥' => '♥',
1027 '♦' => '♦'
1030 return str_replace( array_keys($to_ncr), array_values($to_ncr), $text );
1033 function wp_richedit_pre($text) {
1034 // Filtering a blank results in an annoying <br />\n
1035 if ( empty($text) ) return apply_filters('richedit_pre', '');
1038 $output = convert_chars($output);
1039 $output = wpautop($output);
1041 // These must be double-escaped or planets will collide.
1042 $output = str_replace('<', '&lt;', $output);
1043 $output = str_replace('>', '&gt;', $output);
1045 return apply_filters('richedit_pre', $output);
1048 function clean_url( $url, $protocols = null ) {
1049 if ('' == $url) return $url;
1050 $url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%]|i', '', $url);
1051 $strip = array('%0d', '%0a');
1052 $url = str_replace($strip, '', $url);
1053 $url = str_replace(';//', '://', $url);
1054 // Append http unless a relative link starting with / or a php file.
1055 if ( strpos($url, '://') === false &&
1056 substr( $url, 0, 1 ) != '/' && !preg_match('/^[a-z0-9]+?\.php/i', $url) )
1057 $url = 'http://' . $url;
1059 $url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&$1', $url);
1060 if ( !is_array($protocols) )
1061 $protocols = array('http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet');
1062 if ( wp_kses_bad_protocol( $url, $protocols ) != $url )
1067 // Escape single quotes, specialchar double quotes, and fix line endings.
1068 function js_escape($text) {
1069 $safe_text = wp_specialchars($text, 'double');
1070 $safe_text = preg_replace('/&#(x)?0*(?(1)27|39);?/i', "'", stripslashes($safe_text));
1071 $safe_text = preg_replace("/\r?\n/", "\\n", addslashes($safe_text));
1072 return apply_filters('js_escape', $safe_text, $text);
1075 // Escaping for HTML attributes
1076 function attribute_escape($text) {
1077 $safe_text = wp_specialchars($text, true);
1078 return apply_filters('attribute_escape', $safe_text, $text);