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PHP Cross Reference of WordPress Trunk (Latest) |
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1 <?php 2 3 function wptexturize($text) { 4 $output = ''; 5 // Capture tags and everything inside them 6 $textarr = preg_split("/(<.*>)/Us", $text, -1, PREG_SPLIT_DELIM_CAPTURE); 7 $stop = count($textarr); $next = true; // loop stuff 8 for ($i = 0; $i < $stop; $i++) { 9 $curl = $textarr[$i]; 10 11 if (isset($curl{0}) && '<' != $curl{0} && $next) { // If it's not a tag 12 $curl = str_replace('---', '—', $curl); 13 $curl = str_replace(' -- ', ' — ', $curl); 14 $curl = str_replace('--', '–', $curl); 15 $curl = str_replace('xn–', 'xn--', $curl); 16 $curl = str_replace('...', '…', $curl); 17 $curl = str_replace('``', '“', $curl); 18 19 // This is a hack, look at this more later. It works pretty well though. 20 $cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round","'cause"); 21 $cockneyreplace = array("’tain’t","’twere","’twas","’tis","’twill","’til","’bout","’nuff","’round","’cause"); 22 $curl = str_replace($cockney, $cockneyreplace, $curl); 23 24 $curl = preg_replace("/'s/", '’s', $curl); 25 $curl = preg_replace("/'(\d\d(?:’|')?s)/", "’$1", $curl); 26 $curl = preg_replace('/(\s|\A|")\'/', '$1‘', $curl); 27 $curl = preg_replace('/(\d+)"/', '$1″', $curl); 28 $curl = preg_replace("/(\d+)'/", '$1′', $curl); 29 $curl = preg_replace("/(\S)'([^'\s])/", "$1’$2", $curl); 30 $curl = preg_replace('/(\s|\A)"(?!\s)/', '$1“$2', $curl); 31 $curl = preg_replace('/"(\s|\S|\Z)/', '”$1', $curl); 32 $curl = preg_replace("/'([\s.]|\Z)/", '’$1', $curl); 33 $curl = preg_replace("/ \(tm\)/i", ' ™', $curl); 34 $curl = str_replace("''", '”', $curl); 35 36 $curl = preg_replace('/(\d+)x(\d+)/', "$1×$2", $curl); 37 38 } elseif (strstr($curl, '<code') || strstr($curl, '<pre') || strstr($curl, '<kbd' || strstr($curl, '<style') || strstr($curl, '<script'))) { 39 // strstr is fast 40 $next = false; 41 } else { 42 $next = true; 43 } 44 $curl = preg_replace('/&([^#])(?![a-zA-Z1-4]{1,8};)/', '&$1', $curl); 45 $output .= $curl; 46 } 47 return $output; 48 } 49 50 function clean_pre($text) { 51 $text = str_replace('<br />', '', $text); 52 $text = str_replace('<p>', "\n", $text); 53 $text = str_replace('</p>', '', $text); 54 return $text; 55 } 56 57 function wpautop($pee, $br = 1) { 58 $pee = $pee . "\n"; // just to make things a little easier, pad the end 59 $pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee); 60 // Space things out a little 61 $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); 62 $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); 63 $pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines 64 $pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates 65 $pee = preg_replace('/\n?(.+?)(?:\n\s*\n|\z)/s', "<p>$1</p>\n", $pee); // make paragraphs, including one at the end 66 $pee = preg_replace('|<p>\s*?</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace 67 $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 68 $pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists 69 $pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee); 70 $pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee); 71 $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); 72 $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", $pee); 73 if ($br) $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks 74 $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); 75 $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)>)!', '$1', $pee); 76 $pee = preg_replace('!(<pre.*?>)(.*?)</pre>!ise', " stripslashes('$1') . stripslashes(clean_pre('$2')) . '</pre>' ", $pee); 77 78 return $pee; 79 } 80 81 82 function seems_utf8($Str) { # by bmorel at ssi dot fr 83 for ($i=0; $i<strlen($Str); $i++) { 84 if (ord($Str[$i]) < 0x80) continue; # 0bbbbbbb 85 elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb 86 elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb 87 elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb 88 elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb 89 elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b 90 else return false; # Does not match any model 91 for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ? 92 if ((++$i == strlen($Str)) || ((ord($Str[$i]) & 0xC0) != 0x80)) 93 return false; 94 } 95 } 96 return true; 97 } 98 99 function wp_specialchars( $text, $quotes = 0 ) { 100 // Like htmlspecialchars except don't double-encode HTML entities 101 $text = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/', '&$1', $text); 102 $text = str_replace('<', '<', $text); 103 $text = str_replace('>', '>', $text); 104 if ( 'double' === $quotes ) { 105 $text = str_replace('"', '"', $text); 106 } elseif ( 'single' === $quotes ) { 107 $text = str_replace("'", ''', $text); 108 } elseif ( $quotes ) { 109 $text = str_replace('"', '"', $text); 110 $text = str_replace("'", ''', $text); 111 } 112 return $text; 113 } 114 115 function utf8_uri_encode( $utf8_string ) { 116 $unicode = ''; 117 $values = array(); 118 $num_octets = 1; 119 120 for ($i = 0; $i < strlen( $utf8_string ); $i++ ) { 121 122 $value = ord( $utf8_string[ $i ] ); 123 124 if ( $value < 128 ) { 125 $unicode .= chr($value); 126 } else { 127 if ( count( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3; 128 129 $values[] = $value; 130 131 if ( count( $values ) == $num_octets ) { 132 if ($num_octets == 3) { 133 $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]) . '%' . dechex($values[2]); 134 } else { 135 $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]); 136 } 137 138 $values = array(); 139 $num_octets = 1; 140 } 141 } 142 } 143 144 return $unicode; 145 } 146 147 function remove_accents($string) { 148 if (seems_utf8($string)) { 149 $chars = array( 150 // Decompositions for Latin-1 Supplement 151 chr(195).chr(128) => 'A', chr(195).chr(129) => 'A', 152 chr(195).chr(130) => 'A', chr(195).chr(131) => 'A', 153 chr(195).chr(132) => 'A', chr(195).chr(133) => 'A', 154 chr(195).chr(135) => 'C', chr(195).chr(136) => 'E', 155 chr(195).chr(137) => 'E', chr(195).chr(138) => 'E', 156 chr(195).chr(139) => 'E', chr(195).chr(140) => 'I', 157 chr(195).chr(141) => 'I', chr(195).chr(142) => 'I', 158 chr(195).chr(143) => 'I', chr(195).chr(145) => 'N', 159 chr(195).chr(146) => 'O', chr(195).chr(147) => 'O', 160 chr(195).chr(148) => 'O', chr(195).chr(149) => 'O', 161 chr(195).chr(150) => 'O', chr(195).chr(153) => 'U', 162 chr(195).chr(154) => 'U', chr(195).chr(155) => 'U', 163 chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y', 164 chr(195).chr(159) => 's', chr(195).chr(160) => 'a', 165 chr(195).chr(161) => 'a', chr(195).chr(162) => 'a', 166 chr(195).chr(163) => 'a', chr(195).chr(164) => 'a', 167 chr(195).chr(165) => 'a', chr(195).chr(167) => 'c', 168 chr(195).chr(168) => 'e', chr(195).chr(169) => 'e', 169 chr(195).chr(170) => 'e', chr(195).chr(171) => 'e', 170 chr(195).chr(172) => 'i', chr(195).chr(173) => 'i', 171 chr(195).chr(174) => 'i', chr(195).chr(175) => 'i', 172 chr(195).chr(177) => 'n', chr(195).chr(178) => 'o', 173 chr(195).chr(179) => 'o', chr(195).chr(180) => 'o', 174 chr(195).chr(181) => 'o', chr(195).chr(182) => 'o', 175 chr(195).chr(182) => 'o', chr(195).chr(185) => 'u', 176 chr(195).chr(186) => 'u', chr(195).chr(187) => 'u', 177 chr(195).chr(188) => 'u', chr(195).chr(189) => 'y', 178 chr(195).chr(191) => 'y', 179 // Decompositions for Latin Extended-A 180 chr(196).chr(128) => 'A', chr(196).chr(129) => 'a', 181 chr(196).chr(130) => 'A', chr(196).chr(131) => 'a', 182 chr(196).chr(132) => 'A', chr(196).chr(133) => 'a', 183 chr(196).chr(134) => 'C', chr(196).chr(135) => 'c', 184 chr(196).chr(136) => 'C', chr(196).chr(137) => 'c', 185 chr(196).chr(138) => 'C', chr(196).chr(139) => 'c', 186 chr(196).chr(140) => 'C', chr(196).chr(141) => 'c', 187 chr(196).chr(142) => 'D', chr(196).chr(143) => 'd', 188 chr(196).chr(144) => 'D', chr(196).chr(145) => 'd', 189 chr(196).chr(146) => 'E', chr(196).chr(147) => 'e', 190 chr(196).chr(148) => 'E', chr(196).chr(149) => 'e', 191 chr(196).chr(150) => 'E', chr(196).chr(151) => 'e', 192 chr(196).chr(152) => 'E', chr(196).chr(153) => 'e', 193 chr(196).chr(154) => 'E', chr(196).chr(155) => 'e', 194 chr(196).chr(156) => 'G', chr(196).chr(157) => 'g', 195 chr(196).chr(158) => 'G', chr(196).chr(159) => 'g', 196 chr(196).chr(160) => 'G', chr(196).chr(161) => 'g', 197 chr(196).chr(162) => 'G', chr(196).chr(163) => 'g', 198 chr(196).chr(164) => 'H', chr(196).chr(165) => 'h', 199 chr(196).chr(166) => 'H', chr(196).chr(167) => 'h', 200 chr(196).chr(168) => 'I', chr(196).chr(169) => 'i', 201 chr(196).chr(170) => 'I', chr(196).chr(171) => 'i', 202 chr(196).chr(172) => 'I', chr(196).chr(173) => 'i', 203 chr(196).chr(174) => 'I', chr(196).chr(175) => 'i', 204 chr(196).chr(176) => 'I', chr(196).chr(177) => 'i', 205 chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij', 206 chr(196).chr(180) => 'J', chr(196).chr(181) => 'j', 207 chr(196).chr(182) => 'K', chr(196).chr(183) => 'k', 208 chr(196).chr(184) => 'k', chr(196).chr(185) => 'L', 209 chr(196).chr(186) => 'l', chr(196).chr(187) => 'L', 210 chr(196).chr(188) => 'l', chr(196).chr(189) => 'L', 211 chr(196).chr(190) => 'l', chr(196).chr(191) => 'L', 212 chr(197).chr(128) => 'l', chr(197).chr(129) => 'L', 213 chr(197).chr(130) => 'l', chr(197).chr(131) => 'N', 214 chr(197).chr(132) => 'n', chr(197).chr(133) => 'N', 215 chr(197).chr(134) => 'n', chr(197).chr(135) => 'N', 216 chr(197).chr(136) => 'n', chr(197).chr(137) => 'N', 217 chr(197).chr(138) => 'n', chr(197).chr(139) => 'N', 218 chr(197).chr(140) => 'O', chr(197).chr(141) => 'o', 219 chr(197).chr(142) => 'O', chr(197).chr(143) => 'o', 220 chr(197).chr(144) => 'O', chr(197).chr(145) => 'o', 221 chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe', 222 chr(197).chr(148) => 'R',chr(197).chr(149) => 'r', 223 chr(197).chr(150) => 'R',chr(197).chr(151) => 'r', 224 chr(197).chr(152) => 'R',chr(197).chr(153) => 'r', 225 chr(197).chr(154) => 'S',chr(197).chr(155) => 's', 226 chr(197).chr(156) => 'S',chr(197).chr(157) => 's', 227 chr(197).chr(158) => 'S',chr(197).chr(159) => 's', 228 chr(197).chr(160) => 'S', chr(197).chr(161) => 's', 229 chr(197).chr(162) => 'T', chr(197).chr(163) => 't', 230 chr(197).chr(164) => 'T', chr(197).chr(165) => 't', 231 chr(197).chr(166) => 'T', chr(197).chr(167) => 't', 232 chr(197).chr(168) => 'U', chr(197).chr(169) => 'u', 233 chr(197).chr(170) => 'U', chr(197).chr(171) => 'u', 234 chr(197).chr(172) => 'U', chr(197).chr(173) => 'u', 235 chr(197).chr(174) => 'U', chr(197).chr(175) => 'u', 236 chr(197).chr(176) => 'U', chr(197).chr(177) => 'u', 237 chr(197).chr(178) => 'U', chr(197).chr(179) => 'u', 238 chr(197).chr(180) => 'W', chr(197).chr(181) => 'w', 239 chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y', 240 chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z', 241 chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z', 242 chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z', 243 chr(197).chr(190) => 'z', chr(197).chr(191) => 's', 244 // Euro Sign 245 chr(226).chr(130).chr(172) => 'E'); 246 247 $string = strtr($string, $chars); 248 } else { 249 // Assume ISO-8859-1 if not UTF-8 250 $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158) 251 .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194) 252 .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202) 253 .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210) 254 .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218) 255 .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227) 256 .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235) 257 .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243) 258 .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251) 259 .chr(252).chr(253).chr(255); 260 261 $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy"; 262 263 $string = strtr($string, $chars['in'], $chars['out']); 264 $double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254)); 265 $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th'); 266 $string = str_replace($double_chars['in'], $double_chars['out'], $string); 267 } 268 269 return $string; 270 } 271 272 function sanitize_user( $username, $strict = false ) { 273 $raw_username = $username; 274 $username = strip_tags($username); 275 // Kill octets 276 $username = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '', $username); 277 $username = preg_replace('/&.+?;/', '', $username); // Kill entities 278 279 // If strict, reduce to ASCII for max portability. 280 if ( $strict ) 281 $username = preg_replace('|[^a-z0-9 _.\-@]|i', '', $username); 282 283 return apply_filters('sanitize_user', $username, $raw_username, $strict); 284 } 285 286 function sanitize_title($title, $fallback_title = '') { 287 $title = strip_tags($title); 288 $title = apply_filters('sanitize_title', $title); 289 290 if (empty($title)) { 291 $title = $fallback_title; 292 } 293 294 return $title; 295 } 296 297 function sanitize_title_with_dashes($title) { 298 $title = strip_tags($title); 299 // Preserve escaped octets. 300 $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title); 301 // Remove percent signs that are not part of an octet. 302 $title = str_replace('%', '', $title); 303 // Restore octets. 304 $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title); 305 306 $title = remove_accents($title); 307 if (seems_utf8($title)) { 308 if (function_exists('mb_strtolower')) { 309 $title = mb_strtolower($title, 'UTF-8'); 310 } 311 $title = utf8_uri_encode($title); 312 } 313 314 $title = strtolower($title); 315 $title = preg_replace('/&.+?;/', '', $title); // kill entities 316 $title = preg_replace('/[^%a-z0-9 _-]/', '', $title); 317 $title = preg_replace('/\s+/', '-', $title); 318 $title = preg_replace('|-+|', '-', $title); 319 $title = trim($title, '-'); 320 321 return $title; 322 } 323 324 function convert_chars($content, $flag = 'obsolete') { 325 // Translation of invalid Unicode references range to valid range 326 $wp_htmltranswinuni = array( 327 '€' => '€', // the Euro sign 328 '' => '', 329 '‚' => '‚', // these are Windows CP1252 specific characters 330 'ƒ' => 'ƒ', // they would look weird on non-Windows browsers 331 '„' => '„', 332 '…' => '…', 333 '†' => '†', 334 '‡' => '‡', 335 'ˆ' => 'ˆ', 336 '‰' => '‰', 337 'Š' => 'Š', 338 '‹' => '‹', 339 'Œ' => 'Œ', 340 '' => '', 341 'Ž' => 'ž', 342 '' => '', 343 '' => '', 344 '‘' => '‘', 345 '’' => '’', 346 '“' => '“', 347 '”' => '”', 348 '•' => '•', 349 '–' => '–', 350 '—' => '—', 351 '˜' => '˜', 352 '™' => '™', 353 'š' => 'š', 354 '›' => '›', 355 'œ' => 'œ', 356 '' => '', 357 'ž' => '', 358 'Ÿ' => 'Ÿ' 359 ); 360 361 // Remove metadata tags 362 $content = preg_replace('/<title>(.+?)<\/title>/','',$content); 363 $content = preg_replace('/<category>(.+?)<\/category>/','',$content); 364 365 // Converts lone & characters into & (a.k.a. &) 366 $content = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/i', '&$1', $content); 367 368 // Fix Word pasting 369 $content = strtr($content, $wp_htmltranswinuni); 370 371 // Just a little XHTML help 372 $content = str_replace('<br>', '<br />', $content); 373 $content = str_replace('<hr>', '<hr />', $content); 374 375 return $content; 376 } 377 378 function funky_javascript_fix($text) { 379 // Fixes for browsers' javascript bugs 380 global $is_macIE, $is_winIE; 381 382 if ( $is_winIE || $is_macIE ) 383 $text = preg_replace("/\%u([0-9A-F]{4,4})/e", "'&#'.base_convert('\\1',16,10).';'", $text); 384 385 return $text; 386 } 387 388 /* 389 balanceTags 390 391 Balances Tags of string using a modified stack. 392 393 @param text Text to be balanced 394 @return Returns balanced text 395 @author Leonard Lin (leonard@acm.org) 396 @version v1.1 397 @date November 4, 2001 398 @license GPL v2.0 399 @notes 400 @changelog 401 --- Modified by Scott Reilly (coffee2code) 02 Aug 2004 402 1.2 ***TODO*** Make better - change loop condition to $text 403 1.1 Fixed handling of append/stack pop order of end text 404 Added Cleaning Hooks 405 1.0 First Version 406 */ 407 function balanceTags($text, $is_comment = 0, $force = false) { 408 409 if ( !$force && get_option('use_balanceTags') == 0 ) 410 return $text; 411 412 $tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = ''; 413 414 # WP bug fix for comments - in case you REALLY meant to type '< !--' 415 $text = str_replace('< !--', '< !--', $text); 416 # WP bug fix for LOVE <3 (and other situations with '<' before a number) 417 $text = preg_replace('#<([0-9]{1})#', '<$1', $text); 418 419 while (preg_match("/<(\/?\w*)\s*([^>]*)>/",$text,$regex)) { 420 $newtext .= $tagqueue; 421 422 $i = strpos($text,$regex[0]); 423 $l = strlen($regex[0]); 424 425 // clear the shifter 426 $tagqueue = ''; 427 // Pop or Push 428 if ($regex[1][0] == "/") { // End Tag 429 $tag = strtolower(substr($regex[1],1)); 430 // if too many closing tags 431 if($stacksize <= 0) { 432 $tag = ''; 433 //or close to be safe $tag = '/' . $tag; 434 } 435 // if stacktop value = tag close value then pop 436 else if ($tagstack[$stacksize - 1] == $tag) { // found closing tag 437 $tag = '</' . $tag . '>'; // Close Tag 438 // Pop 439 array_pop ($tagstack); 440 $stacksize--; 441 } else { // closing tag not at top, search for it 442 for ($j=$stacksize-1;$j>=0;$j--) { 443 if ($tagstack[$j] == $tag) { 444 // add tag to tagqueue 445 for ($k=$stacksize-1;$k>=$j;$k--){ 446 $tagqueue .= '</' . array_pop ($tagstack) . '>'; 447 $stacksize--; 448 } 449 break; 450 } 451 } 452 $tag = ''; 453 } 454 } else { // Begin Tag 455 $tag = strtolower($regex[1]); 456 457 // Tag Cleaning 458 459 // If self-closing or '', don't do anything. 460 if((substr($regex[2],-1) == '/') || ($tag == '')) { 461 } 462 // ElseIf it's a known single-entity tag but it doesn't close itself, do so 463 elseif ($tag == 'br' || $tag == 'img' || $tag == 'hr' || $tag == 'input') { 464 $regex[2] .= '/'; 465 } else { // Push the tag onto the stack 466 // If the top of the stack is the same as the tag we want to push, close previous tag 467 if (($stacksize > 0) && ($tag != 'div') && ($tagstack[$stacksize - 1] == $tag)) { 468 $tagqueue = '</' . array_pop ($tagstack) . '>'; 469 $stacksize--; 470 } 471 $stacksize = array_push ($tagstack, $tag); 472 } 473 474 // Attributes 475 $attributes = $regex[2]; 476 if($attributes) { 477 $attributes = ' '.$attributes; 478 } 479 $tag = '<'.$tag.$attributes.'>'; 480 //If already queuing a close tag, then put this tag on, too 481 if ($tagqueue) { 482 $tagqueue .= $tag; 483 $tag = ''; 484 } 485 } 486 $newtext .= substr($text,0,$i) . $tag; 487 $text = substr($text,$i+$l); 488 } 489 490 // Clear Tag Queue 491 $newtext .= $tagqueue; 492 493 // Add Remaining text 494 $newtext .= $text; 495 496 // Empty Stack 497 while($x = array_pop($tagstack)) { 498 $newtext .= '</' . $x . '>'; // Add remaining tags to close 499 } 500 501 // WP fix for the bug with HTML comments 502 $newtext = str_replace("< !--","<!--",$newtext); 503 $newtext = str_replace("< !--","< !--",$newtext); 504 505 return $newtext; 506 } 507 508 509 function format_to_edit($content, $richedit = false) { 510 $content = apply_filters('format_to_edit', $content); 511 if (! $richedit ) 512 $content = htmlspecialchars($content); 513 return $content; 514 } 515 516 function format_to_post($content) { 517 global $wpdb; 518 $content = apply_filters('format_to_post', $content); 519 return $content; 520 } 521 522 function zeroise($number,$threshold) { // function to add leading zeros when necessary 523 return sprintf('%0'.$threshold.'s', $number); 524 } 525 526 527 function backslashit($string) { 528 $string = preg_replace('/^([0-9])/', '\\\\\\\\\1', $string); 529 $string = preg_replace('/([a-z])/i', '\\\\\1', $string); 530 return $string; 531 } 532 533 function trailingslashit($string) { 534 if ( '/' != substr($string, -1)) { 535 $string .= '/'; 536 } 537 return $string; 538 } 539 540 function addslashes_gpc($gpc) { 541 global $wpdb; 542 543 if (get_magic_quotes_gpc()) { 544 $gpc = stripslashes($gpc); 545 } 546 547 return $wpdb->escape($gpc); 548 } 549 550 551 function stripslashes_deep($value) 552 { 553 $value = is_array($value) ? 554 array_map('stripslashes_deep', $value) : 555 stripslashes($value); 556 557 return $value; 558 } 559 560 function antispambot($emailaddy, $mailto=0) { 561 $emailNOSPAMaddy = ''; 562 srand ((float) microtime() * 1000000); 563 for ($i = 0; $i < strlen($emailaddy); $i = $i + 1) { 564 $j = floor(rand(0, 1+$mailto)); 565 if ($j==0) { 566 $emailNOSPAMaddy .= '&#'.ord(substr($emailaddy,$i,1)).';'; 567 } elseif ($j==1) { 568 $emailNOSPAMaddy .= substr($emailaddy,$i,1); 569 } elseif ($j==2) { 570 $emailNOSPAMaddy .= '%'.zeroise(dechex(ord(substr($emailaddy, $i, 1))), 2); 571 } 572 } 573 $emailNOSPAMaddy = str_replace('@','@',$emailNOSPAMaddy); 574 return $emailNOSPAMaddy; 575 } 576 577 function make_clickable($ret) { 578 $ret = ' ' . $ret . ' '; 579 $ret = preg_replace("#([\s>])(https?)://([^\s<>{}()]+[^\s.,<>{}()])#i", "$1<a href='$2://$3' rel='nofollow'>$2://$3</a>", $ret); 580 $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); 581 $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); 582 $ret = trim($ret); 583 return $ret; 584 } 585 586 function wp_rel_nofollow( $text ) { 587 global $wpdb; 588 // This is a pre save filter, so text is already escaped. 589 $text = stripslashes($text); 590 $text = preg_replace('|<a (.+?)>|i', '<a $1 rel="nofollow">', $text); 591 $text = $wpdb->escape($text); 592 return $text; 593 } 594 595 function convert_smilies($text) { 596 global $wp_smiliessearch, $wp_smiliesreplace; 597 $output = ''; 598 if (get_settings('use_smilies')) { 599 // HTML loop taken from texturize function, could possible be consolidated 600 $textarr = preg_split("/(<.*>)/U", $text, -1, PREG_SPLIT_DELIM_CAPTURE); // capture the tags as well as in between 601 $stop = count($textarr);// loop stuff 602 for ($i = 0; $i < $stop; $i++) { 603 $content = $textarr[$i]; 604 if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag 605 $content = str_replace($wp_smiliessearch, $wp_smiliesreplace, $content); 606 } 607 $output .= $content; 608 } 609 } else { 610 // return default text. 611 $output = $text; 612 } 613 return $output; 614 } 615 616 617 function is_email($user_email) { 618 $chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i"; 619 if(strstr($user_email, '@') && strstr($user_email, '.')) { 620 if (preg_match($chars, $user_email)) { 621 return true; 622 } else { 623 return false; 624 } 625 } else { 626 return false; 627 } 628 } 629 630 // used by wp-mail to handle charsets in email subjects 631 function wp_iso_descrambler($string) { 632 /* this may only work with iso-8859-1, I'm afraid */ 633 if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) { 634 return $string; 635 } else { 636 $subject = str_replace('_', ' ', $matches[2]); 637 $subject = preg_replace('#\=([0-9a-f]{2})#ei', "chr(hexdec(strtolower('$1')))", $subject); 638 return $subject; 639 } 640 } 641 642 643 // give it a date, it will give you the same date as GMT 644 function get_gmt_from_date($string) { 645 // note: this only substracts $time_difference from the given date 646 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); 647 $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]); 648 $string_gmt = gmdate('Y-m-d H:i:s', $string_time - get_settings('gmt_offset') * 3600); 649 return $string_gmt; 650 } 651 652 // give it a GMT date, it will give you the same date with $time_difference added 653 function get_date_from_gmt($string) { 654 // note: this only adds $time_difference to the given date 655 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); 656 $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]); 657 $string_localtime = gmdate('Y-m-d H:i:s', $string_time + get_settings('gmt_offset')*3600); 658 return $string_localtime; 659 } 660 661 // computes an offset in seconds from an iso8601 timezone 662 function iso8601_timezone_to_offset($timezone) { 663 // $timezone is either 'Z' or '[+|-]hhmm' 664 if ($timezone == 'Z') { 665 $offset = 0; 666 } else { 667 $sign = (substr($timezone, 0, 1) == '+') ? 1 : -1; 668 $hours = intval(substr($timezone, 1, 2)); 669 $minutes = intval(substr($timezone, 3, 4)) / 60; 670 $offset = $sign * 3600 * ($hours + $minutes); 671 } 672 return $offset; 673 } 674 675 // converts an iso8601 date to MySQL DateTime format used by post_date[_gmt] 676 function iso8601_to_datetime($date_string, $timezone = USER) { 677 if ($timezone == GMT) { 678 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, $date_bits); 679 if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset 680 $offset = iso8601_timezone_to_offset($date_bits[7]); 681 } else { // we don't have a timezone, so we assume user local timezone (not server's!) 682 $offset = 3600 * get_settings('gmt_offset'); 683 } 684 $timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]); 685 $timestamp -= $offset; 686 return gmdate('Y-m-d H:i:s', $timestamp); 687 } elseif ($timezone == USER) { 688 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', $date_string); 689 } 690 } 691 692 function popuplinks($text) { 693 // Comment text in popup windows should be filtered through this. 694 // Right now it's a moderately dumb function, ideally it would detect whether 695 // a target or rel attribute was already there and adjust its actions accordingly. 696 $text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text); 697 return $text; 698 } 699 700 function sanitize_email($email) { 701 return preg_replace('/[^a-z0-9+_.@-]/i', '', $email); 702 } 703 704 function human_time_diff( $from, $to = '' ) { 705 if ( empty($to) ) 706 $to = time(); 707 $diff = (int) abs($to - $from); 708 if ($diff <= 3600) { 709 $mins = round($diff / 60); 710 if ($mins <= 1) 711 $since = __('1 min'); 712 else 713 $since = sprintf( __('%s mins'), $mins); 714 } else if (($diff <= 86400) && ($diff > 3600)) { 715 $hours = round($diff / 3600); 716 if ($hours <= 1) 717 $since = __('1 hour'); 718 else 719 $since = sprintf( __('%s hours'), $hours ); 720 } elseif ($diff >= 86400) { 721 $days = round($diff / 86400); 722 if ($days <= 1) 723 $since = __('1 day'); 724 else 725 $since = sprintf( __('%s days'), $days ); 726 } 727 return $since; 728 } 729 730 function wp_trim_excerpt($text) { // Fakes an excerpt if needed 731 global $post; 732 if ( '' == $text ) { 733 $text = $post->post_content; 734 $text = apply_filters('the_content', $text); 735 $text = str_replace(']]>', ']]>', $text); 736 $text = strip_tags($text); 737 $excerpt_length = 55; 738 $words = explode(' ', $text, $excerpt_length + 1); 739 if (count($words) > $excerpt_length) { 740 array_pop($words); 741 array_push($words, '[...]'); 742 $text = implode(' ', $words); 743 } 744 } 745 return $text; 746 } 747 748 function ent2ncr($text) { 749 $to_ncr = array( 750 '"' => '"', 751 '&' => '&', 752 '⁄' => '/', 753 '<' => '<', 754 '>' => '>', 755 '|' => '|', 756 ' ' => ' ', 757 '¡' => '¡', 758 '¢' => '¢', 759 '£' => '£', 760 '¤' => '¤', 761 '¥' => '¥', 762 '¦' => '¦', 763 '&brkbar;' => '¦', 764 '§' => '§', 765 '¨' => '¨', 766 '¨' => '¨', 767 '©' => '©', 768 'ª' => 'ª', 769 '«' => '«', 770 '¬' => '¬', 771 '­' => '­', 772 '®' => '®', 773 '¯' => '¯', 774 '&hibar;' => '¯', 775 '°' => '°', 776 '±' => '±', 777 '²' => '²', 778 '³' => '³', 779 '´' => '´', 780 'µ' => 'µ', 781 '¶' => '¶', 782 '·' => '·', 783 '¸' => '¸', 784 '¹' => '¹', 785 'º' => 'º', 786 '»' => '»', 787 '¼' => '¼', 788 '½' => '½', 789 '¾' => '¾', 790 '¿' => '¿', 791 'À' => 'À', 792 'Á' => 'Á', 793 'Â' => 'Â', 794 'Ã' => 'Ã', 795 'Ä' => 'Ä', 796 'Å' => 'Å', 797 'Æ' => 'Æ', 798 'Ç' => 'Ç', 799 'È' => 'È', 800 'É' => 'É', 801 'Ê' => 'Ê', 802 'Ë' => 'Ë', 803 'Ì' => 'Ì', 804 'Í' => 'Í', 805 'Î' => 'Î', 806 'Ï' => 'Ï', 807 'Ð' => 'Ð', 808 'Ñ' => 'Ñ', 809 'Ò' => 'Ò', 810 'Ó' => 'Ó', 811 'Ô' => 'Ô', 812 'Õ' => 'Õ', 813 'Ö' => 'Ö', 814 '×' => '×', 815 'Ø' => 'Ø', 816 'Ù' => 'Ù', 817 'Ú' => 'Ú', 818 'Û' => 'Û', 819 'Ü' => 'Ü', 820 'Ý' => 'Ý', 821 'Þ' => 'Þ', 822 'ß' => 'ß', 823 'à' => 'à', 824 'á' => 'á', 825 'â' => 'â', 826 'ã' => 'ã', 827 'ä' => 'ä', 828 'å' => 'å', 829 'æ' => 'æ', 830 'ç' => 'ç', 831 'è' => 'è', 832 'é' => 'é', 833 'ê' => 'ê', 834 'ë' => 'ë', 835 'ì' => 'ì', 836 'í' => 'í', 837 'î' => 'î', 838 'ï' => 'ï', 839 'ð' => 'ð', 840 'ñ' => 'ñ', 841 'ò' => 'ò', 842 'ó' => 'ó', 843 'ô' => 'ô', 844 'õ' => 'õ', 845 'ö' => 'ö', 846 '÷' => '÷', 847 'ø' => 'ø', 848 'ù' => 'ù', 849 'ú' => 'ú', 850 'û' => 'û', 851 'ü' => 'ü', 852 'ý' => 'ý', 853 'þ' => 'þ', 854 'ÿ' => 'ÿ', 855 'Œ' => 'Œ', 856 'œ' => 'œ', 857 'Š' => 'Š', 858 'š' => 'š', 859 'Ÿ' => 'Ÿ', 860 'ƒ' => 'ƒ', 861 'ˆ' => 'ˆ', 862 '˜' => '˜', 863 'Α' => 'Α', 864 'Β' => 'Β', 865 'Γ' => 'Γ', 866 'Δ' => 'Δ', 867 'Ε' => 'Ε', 868 'Ζ' => 'Ζ', 869 'Η' => 'Η', 870 'Θ' => 'Θ', 871 'Ι' => 'Ι', 872 'Κ' => 'Κ', 873 'Λ' => 'Λ', 874 'Μ' => 'Μ', 875 'Ν' => 'Ν', 876 'Ξ' => 'Ξ', 877 'Ο' => 'Ο', 878 'Π' => 'Π', 879 'Ρ' => 'Ρ', 880 'Σ' => 'Σ', 881 'Τ' => 'Τ', 882 'Υ' => 'Υ', 883 'Φ' => 'Φ', 884 'Χ' => 'Χ', 885 'Ψ' => 'Ψ', 886 'Ω' => 'Ω', 887 'α' => 'α', 888 'β' => 'β', 889 'γ' => 'γ', 890 'δ' => 'δ', 891 'ε' => 'ε', 892 'ζ' => 'ζ', 893 'η' => 'η', 894 'θ' => 'θ', 895 'ι' => 'ι', 896 'κ' => 'κ', 897 'λ' => 'λ', 898 'μ' => 'μ', 899 'ν' => 'ν', 900 'ξ' => 'ξ', 901 'ο' => 'ο', 902 'π' => 'π', 903 'ρ' => 'ρ', 904 'ς' => 'ς', 905 'σ' => 'σ', 906 'τ' => 'τ', 907 'υ' => 'υ', 908 'φ' => 'φ', 909 'χ' => 'χ', 910 'ψ' => 'ψ', 911 'ω' => 'ω', 912 'ϑ' => 'ϑ', 913 'ϒ' => 'ϒ', 914 'ϖ' => 'ϖ', 915 ' ' => ' ', 916 ' ' => ' ', 917 ' ' => ' ', 918 '‌' => '‌', 919 '‍' => '‍', 920 '‎' => '‎', 921 '‏' => '‏', 922 '–' => '–', 923 '—' => '—', 924 '‘' => '‘', 925 '’' => '’', 926 '‚' => '‚', 927 '“' => '“', 928 '”' => '”', 929 '„' => '„', 930 '†' => '†', 931 '‡' => '‡', 932 '•' => '•', 933 '…' => '…', 934 '‰' => '‰', 935 '′' => '′', 936 '″' => '″', 937 '‹' => '‹', 938 '›' => '›', 939 '‾' => '‾', 940 '⁄' => '⁄', 941 '€' => '€', 942 'ℑ' => 'ℑ', 943 '℘' => '℘', 944 'ℜ' => 'ℜ', 945 '™' => '™', 946 'ℵ' => 'ℵ', 947 '↵' => '↵', 948 '⇐' => '⇐', 949 '⇑' => '⇑', 950 '⇒' => '⇒', 951 '⇓' => '⇓', 952 '⇔' => '⇔', 953 '∀' => '∀', 954 '∂' => '∂', 955 '∃' => '∃', 956 '∅' => '∅', 957 '∇' => '∇', 958 '∈' => '∈', 959 '∉' => '∉', 960 '∋' => '∋', 961 '∏' => '∏', 962 '∑' => '∑', 963 '−' => '−', 964 '∗' => '∗', 965 '√' => '√', 966 '∝' => '∝', 967 '∞' => '∞', 968 '∠' => '∠', 969 '∧' => '∧', 970 '∨' => '∨', 971 '∩' => '∩', 972 '∪' => '∪', 973 '∫' => '∫', 974 '∴' => '∴', 975 '∼' => '∼', 976 '≅' => '≅', 977 '≈' => '≈', 978 '≠' => '≠', 979 '≡' => '≡', 980 '≤' => '≤', 981 '≥' => '≥', 982 '⊂' => '⊂', 983 '⊃' => '⊃', 984 '⊄' => '⊄', 985 '⊆' => '⊆', 986 '⊇' => '⊇', 987 '⊕' => '⊕', 988 '⊗' => '⊗', 989 '⊥' => '⊥', 990 '⋅' => '⋅', 991 '⌈' => '⌈', 992 '⌉' => '⌉', 993 '⌊' => '⌊', 994 '⌋' => '⌋', 995 '⟨' => '〈', 996 '⟩' => '〉', 997 '←' => '←', 998 '↑' => '↑', 999 '→' => '→', 1000 '↓' => '↓', 1001 '↔' => '↔', 1002 '◊' => '◊', 1003 '♠' => '♠', 1004 '♣' => '♣', 1005 '♥' => '♥', 1006 '♦' => '♦' 1007 ); 1008 1009 return str_replace( array_keys($to_ncr), array_values($to_ncr), $text ); 1010 } 1011 1012 function wp_richedit_pre($text) { 1013 // Filtering a blank results in an annoying <br />\n 1014 if ( empty($text) ) return apply_filters('richedit_pre', ''); 1015 1016 $output = $text; 1017 $output = convert_chars($output); 1018 $output = wpautop($output); 1019 1020 // These must be double-escaped or planets will collide. 1021 $output = str_replace('<', '&lt;', $output); 1022 $output = str_replace('>', '&gt;', $output); 1023 1024 return apply_filters('richedit_pre', $output); 1025 } 1026 1027 function clean_url( $url ) { 1028 if ('' == $url) return $url; 1029 $url = preg_replace('|[^a-z0-9-~+_.?#=&;,/:]|i', '', $url); 1030 $url = str_replace(';//', '://', $url); 1031 $url = (!strstr($url, '://')) ? 'http://'.$url : $url; 1032 $url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&$1', $url); 1033 return $url; 1034 } 1035 1036 // Borrowed from the PHP Manual user notes. Convert entities, while 1037 // preserving already-encoded entities: 1038 function htmlentities2($myHTML) { 1039 $translation_table=get_html_translation_table (HTML_ENTITIES,ENT_QUOTES); 1040 $translation_table[chr(38)] = '&'; 1041 return preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/","&" , strtr($myHTML, $translation_table)); 1042 } 1043 1044 // Escape single quotes, specialchar double quotes, and fix line endings. 1045 function js_escape($text) { 1046 $text = wp_specialchars($text, 'double'); 1047 return preg_replace("/\r?\n/", "\\n", addslashes($text)); 1048 } 1049 ?>
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| Generated: Sun Jun 11 00:10:35 2006 | Courtesy of Taragana |