PageRenderTime 71ms CodeModel.GetById 30ms RepoModel.GetById 0ms app.codeStats 0ms

/tags/2.5/wp-includes/formatting.php

#
PHP | 1409 lines | 1144 code | 140 blank | 125 comment | 165 complexity | d383b222c050889d8083245a43ccb4fb MD5 | raw file
Possible License(s): AGPL-1.0, LGPL-2.0, LGPL-2.1, GPL-2.0 
    

  1. <?php
    2. 

  2. 

  3. function wptexturize($text) {
    4. 

  4. 	global $wp_cockneyreplace;
    5. 

  5. 	$next = true;
    6. 

  6. 	$output = '';
    7. 

  7. 	$curl = '';
    8. 

  8. 	$textarr = preg_split('/(<.*>)/Us', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
    9. 

  9. 	$stop = count($textarr);
    10. 

  10. 

  11. 	// if a plugin has provided an autocorrect array, use it
    12. 

  12. 	if ( isset($wp_cockneyreplace) ) {
    13. 

  13. 		$cockney = array_keys($wp_cockneyreplace);
    14. 

  14. 		$cockneyreplace = array_values($wp_cockneyreplace);
    15. 

  15. 	} else {
    16. 

  16. 		$cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round","'cause");
    17. 

  17. 		$cockneyreplace = array("&#8217;tain&#8217;t","&#8217;twere","&#8217;twas","&#8217;tis","&#8217;twill","&#8217;til","&#8217;bout","&#8217;nuff","&#8217;round","&#8217;cause");
    18. 

  18. 	}
    19. 

  19. 

  20. 	$static_characters = array_merge(array('---', ' -- ', '--', 'xn&#8211;', '...', '``', '\'s', '\'\'', ' (tm)'), $cockney);
    21. 

  21. 	$static_replacements = array_merge(array('&#8212;', ' &#8212; ', '&#8211;', 'xn--', '&#8230;', '&#8220;', '&#8217;s', '&#8221;', ' &#8482;'), $cockneyreplace);
    22. 

  22. 

  23. 	$dynamic_characters = array('/\'(\d\d(?:&#8217;|\')?s)/', '/(\s|\A|")\'/', '/(\d+)"/', '/(\d+)\'/', '/(\S)\'([^\'\s])/', '/(\s|\A)"(?!\s)/', '/"(\s|\S|\Z)/', '/\'([\s.]|\Z)/', '/(\d+)x(\d+)/');
    24. 

  24. 	$dynamic_replacements = array('&#8217;$1','$1&#8216;', '$1&#8243;', '$1&#8242;', '$1&#8217;$2', '$1&#8220;$2', '&#8221;$1', '&#8217;$1', '$1&#215;$2');
    25. 

  25. 

  26. 	for ( $i = 0; $i < $stop; $i++ ) {
    27. 

  27.  		$curl = $textarr[$i];
    28. 

  28. 

  29. 		if (isset($curl{0}) && '<' != $curl{0} && $next) { // If it's not a tag
    30. 

  30. 			// static strings
    31. 

  31. 			$curl = str_replace($static_characters, $static_replacements, $curl);
    32. 

  32. 			// regular expressions
    33. 

  33. 			$curl = preg_replace($dynamic_characters, $dynamic_replacements, $curl);
    34. 

  34. 		} elseif (strpos($curl, '<code') !== false || strpos($curl, '<pre') !== false || strpos($curl, '<kbd') !== false || strpos($curl, '<style') !== false || strpos($curl, '<script') !== false) {
    35. 

  35. 			$next = false;
    36. 

  36. 		} else {
    37. 

  37. 			$next = true;
    38. 

  38. 		}
    39. 

  39. 

  40. 		$curl = preg_replace('/&([^#])(?![a-zA-Z1-4]{1,8};)/', '&#038;$1', $curl);
    41. 

  41. 		$output .= $curl;
    42. 

  42. 	}
    43. 

  43. 

  44.   	return $output;
    45. 

  45. }
    46. 

  46. 

  47. // Accepts matches array from preg_replace_callback in wpautop()
    48. 

  48. // or a string
    49. 

  49. function clean_pre($matches) {
    50. 

  50. 	if ( is_array($matches) )
    51. 

  51. 		$text = $matches[1] . $matches[2] . "</pre>";
    52. 

  52. 	else
    53. 

  53. 		$text = $matches;
    54. 

  54. 

  55. 	$text = str_replace('<br />', '', $text);
    56. 

  56. 	$text = str_replace('<p>', "\n", $text);
    57. 

  57. 	$text = str_replace('</p>', '', $text);
    58. 

  58. 

  59. 	return $text;
    60. 

  60. }
    61. 

  61. 

  62. function wpautop($pee, $br = 1) {
    63. 

  63. 	$pee = $pee . "\n"; // just to make things a little easier, pad the end
    64. 

  64. 	$pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
    65. 

  65. 	// Space things out a little
    66. 

  66. 	$allblocks = '(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|map|area|blockquote|address|math|style|input|p|h[1-6]|hr)';
    67. 

  67. 	$pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee);
    68. 

  68. 	$pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee);
    69. 

  69. 	$pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
    70. 

  70. 	if ( strpos($pee, '<object') !== false ) {
    71. 

  71. 		$pee = preg_replace('|\s*<param([^>]*)>\s*|', "<param$1>", $pee); // no pee inside object/embed
    72. 

  72. 		$pee = preg_replace('|\s*</embed>\s*|', '</embed>', $pee);
    73. 

  73. 	}
    74. 

  74. 	$pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates
    75. 

  75. 	$pee = preg_replace('/\n?(.+?)(?:\n\s*\n|\z)/s', "<p>$1</p>\n", $pee); // make paragraphs, including one at the end
    76. 

  76. 	$pee = preg_replace('|<p>\s*?</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace
    77. 

  77. 	$pee = preg_replace('!<p>([^<]+)\s*?(</(?:div|address|form)[^>]*>)!', "<p>$1</p>$2", $pee);
    78. 

  78. 	$pee = preg_replace( '|<p>|', "$1<p>", $pee );
    79. 

  79. 	$pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); // don't pee all over a tag
    80. 

  80. 	$pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists
    81. 

  81. 	$pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee);
    82. 

  82. 	$pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee);
    83. 

  83. 	$pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee);
    84. 

  84. 	$pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee);
    85. 

  85. 	if ($br) {
    86. 

  86. 		$pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', create_function('$matches', 'return str_replace("\n", "<WPPreserveNewline />", $matches[0]);'), $pee);
    87. 

  87. 		$pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
    88. 

  88. 		$pee = str_replace('<WPPreserveNewline />', "\n", $pee);
    89. 

  89. 	}
    90. 

  90. 	$pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee);
    91. 

  91. 	$pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee);
    92. 

  92. 	if (strpos($pee, '<pre') !== false)
    93. 

  93. 		$pee = preg_replace_callback('!(<pre.*?>)(.*?)</pre>!is', 'clean_pre', $pee );
    94. 

  94. 	$pee = preg_replace( "|\n</p>$|", '</p>', $pee );
    95. 

  95. 

  96. 	return $pee;
    97. 

  97. }
    98. 

  98. 

  99. 

  100. function seems_utf8($Str) { # by bmorel at ssi dot fr
    101. 

  101. 	$length = strlen($Str);
    102. 

  102. 	for ($i=0; $i < $length; $i++) {
    103. 

  103. 		if (ord($Str[$i]) < 0x80) continue; # 0bbbbbbb
    104. 

  104. 		elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
    105. 

  105. 		elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
    106. 

  106. 		elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
    107. 

  107. 		elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
    108. 

  108. 		elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
    109. 

  109. 		else return false; # Does not match any model
    110. 

  110. 		for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
    111. 

  111. 			if ((++$i == $length) || ((ord($Str[$i]) & 0xC0) != 0x80))
    112. 

  112. 			return false;
    113. 

  113. 		}
    114. 

  114. 	}
    115. 

  115. 	return true;
    116. 

  116. }
    117. 

  117. 

  118. function wp_specialchars( $text, $quotes = 0 ) {
    119. 

  119. 	// Like htmlspecialchars except don't double-encode HTML entities
    120. 

  120. 	$text = str_replace('&&', '&#038;&', $text);
    121. 

  121. 	$text = str_replace('&&', '&#038;&', $text);
    122. 

  122. 	$text = preg_replace('/&(?:$|([^#])(?![a-z1-4]{1,8};))/', '&#038;$1', $text);
    123. 

  123. 	$text = str_replace('<', '&lt;', $text);
    124. 

  124. 	$text = str_replace('>', '&gt;', $text);
    125. 

  125. 	if ( 'double' === $quotes ) {
    126. 

  126. 		$text = str_replace('"', '&quot;', $text);
    127. 

  127. 	} elseif ( 'single' === $quotes ) {
    128. 

  128. 		$text = str_replace("'", '&#039;', $text);
    129. 

  129. 	} elseif ( $quotes ) {
    130. 

  130. 		$text = str_replace('"', '&quot;', $text);
    131. 

  131. 		$text = str_replace("'", '&#039;', $text);
    132. 

  132. 	}
    133. 

  133. 	return $text;
    134. 

  134. }
    135. 

  135. 

  136. function utf8_uri_encode( $utf8_string, $length = 0 ) {
    137. 

  137. 	$unicode = '';
    138. 

  138. 	$values = array();
    139. 

  139. 	$num_octets = 1;
    140. 

  140. 	$unicode_length = 0;
    141. 

  141. 

  142. 	$string_length = strlen( $utf8_string );
    143. 

  143. 	for ($i = 0; $i < $string_length; $i++ ) {
    144. 

  144. 

  145. 		$value = ord( $utf8_string[ $i ] );
    146. 

  146. 

  147. 		if ( $value < 128 ) {
    148. 

  148. 			if ( $length && ( $unicode_length >= $length ) )
    149. 

  149. 				break;
    150. 

  150. 			$unicode .= chr($value);
    151. 

  151. 			$unicode_length++;
    152. 

  152. 		} else {
    153. 

  153. 			if ( count( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3;
    154. 

  154. 

  155. 			$values[] = $value;
    156. 

  156. 

  157. 			if ( $length && ( $unicode_length + ($num_octets * 3) ) > $length )
    158. 

  158. 				break;
    159. 

  159. 			if ( count( $values ) == $num_octets ) {
    160. 

  160. 				if ($num_octets == 3) {
    161. 

  161. 					$unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]) . '%' . dechex($values[2]);
    162. 

  162. 					$unicode_length += 9;
    163. 

  163. 				} else {
    164. 

  164. 					$unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]);
    165. 

  165. 					$unicode_length += 6;
    166. 

  166. 				}
    167. 

  167. 

  168. 				$values = array();
    169. 

  169. 				$num_octets = 1;
    170. 

  170. 			}
    171. 

  171. 		}
    172. 

  172. 	}
    173. 

  173. 

  174. 	return $unicode;
    175. 

  175. }
    176. 

  176. 

  177. function remove_accents($string) {
    178. 

  178. 	if ( !preg_match('/[\x80-\xff]/', $string) )
    179. 

  179. 		return $string;
    180. 

  180. 

  181. 	if (seems_utf8($string)) {
    182. 

  182. 		$chars = array(
    183. 

  183. 		// Decompositions for Latin-1 Supplement
    184. 

  184. 		chr(195).chr(128) => 'A', chr(195).chr(129) => 'A',
    185. 

  185. 		chr(195).chr(130) => 'A', chr(195).chr(131) => 'A',
    186. 

  186. 		chr(195).chr(132) => 'A', chr(195).chr(133) => 'A',
    187. 

  187. 		chr(195).chr(135) => 'C', chr(195).chr(136) => 'E',
    188. 

  188. 		chr(195).chr(137) => 'E', chr(195).chr(138) => 'E',
    189. 

  189. 		chr(195).chr(139) => 'E', chr(195).chr(140) => 'I',
    190. 

  190. 		chr(195).chr(141) => 'I', chr(195).chr(142) => 'I',
    191. 

  191. 		chr(195).chr(143) => 'I', chr(195).chr(145) => 'N',
    192. 

  192. 		chr(195).chr(146) => 'O', chr(195).chr(147) => 'O',
    193. 

  193. 		chr(195).chr(148) => 'O', chr(195).chr(149) => 'O',
    194. 

  194. 		chr(195).chr(150) => 'O', chr(195).chr(153) => 'U',
    195. 

  195. 		chr(195).chr(154) => 'U', chr(195).chr(155) => 'U',
    196. 

  196. 		chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y',
    197. 

  197. 		chr(195).chr(159) => 's', chr(195).chr(160) => 'a',
    198. 

  198. 		chr(195).chr(161) => 'a', chr(195).chr(162) => 'a',
    199. 

  199. 		chr(195).chr(163) => 'a', chr(195).chr(164) => 'a',
    200. 

  200. 		chr(195).chr(165) => 'a', chr(195).chr(167) => 'c',
    201. 

  201. 		chr(195).chr(168) => 'e', chr(195).chr(169) => 'e',
    202. 

  202. 		chr(195).chr(170) => 'e', chr(195).chr(171) => 'e',
    203. 

  203. 		chr(195).chr(172) => 'i', chr(195).chr(173) => 'i',
    204. 

  204. 		chr(195).chr(174) => 'i', chr(195).chr(175) => 'i',
    205. 

  205. 		chr(195).chr(177) => 'n', chr(195).chr(178) => 'o',
    206. 

  206. 		chr(195).chr(179) => 'o', chr(195).chr(180) => 'o',
    207. 

  207. 		chr(195).chr(181) => 'o', chr(195).chr(182) => 'o',
    208. 

  208. 		chr(195).chr(182) => 'o', chr(195).chr(185) => 'u',
    209. 

  209. 		chr(195).chr(186) => 'u', chr(195).chr(187) => 'u',
    210. 

  210. 		chr(195).chr(188) => 'u', chr(195).chr(189) => 'y',
    211. 

  211. 		chr(195).chr(191) => 'y',
    212. 

  212. 		// Decompositions for Latin Extended-A
    213. 

  213. 		chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',
    214. 

  214. 		chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',
    215. 

  215. 		chr(196).chr(132) => 'A', chr(196).chr(133) => 'a',
    216. 

  216. 		chr(196).chr(134) => 'C', chr(196).chr(135) => 'c',
    217. 

  217. 		chr(196).chr(136) => 'C', chr(196).chr(137) => 'c',
    218. 

  218. 		chr(196).chr(138) => 'C', chr(196).chr(139) => 'c',
    219. 

  219. 		chr(196).chr(140) => 'C', chr(196).chr(141) => 'c',
    220. 

  220. 		chr(196).chr(142) => 'D', chr(196).chr(143) => 'd',
    221. 

  221. 		chr(196).chr(144) => 'D', chr(196).chr(145) => 'd',
    222. 

  222. 		chr(196).chr(146) => 'E', chr(196).chr(147) => 'e',
    223. 

  223. 		chr(196).chr(148) => 'E', chr(196).chr(149) => 'e',
    224. 

  224. 		chr(196).chr(150) => 'E', chr(196).chr(151) => 'e',
    225. 

  225. 		chr(196).chr(152) => 'E', chr(196).chr(153) => 'e',
    226. 

  226. 		chr(196).chr(154) => 'E', chr(196).chr(155) => 'e',
    227. 

  227. 		chr(196).chr(156) => 'G', chr(196).chr(157) => 'g',
    228. 

  228. 		chr(196).chr(158) => 'G', chr(196).chr(159) => 'g',
    229. 

  229. 		chr(196).chr(160) => 'G', chr(196).chr(161) => 'g',
    230. 

  230. 		chr(196).chr(162) => 'G', chr(196).chr(163) => 'g',
    231. 

  231. 		chr(196).chr(164) => 'H', chr(196).chr(165) => 'h',
    232. 

  232. 		chr(196).chr(166) => 'H', chr(196).chr(167) => 'h',
    233. 

  233. 		chr(196).chr(168) => 'I', chr(196).chr(169) => 'i',
    234. 

  234. 		chr(196).chr(170) => 'I', chr(196).chr(171) => 'i',
    235. 

  235. 		chr(196).chr(172) => 'I', chr(196).chr(173) => 'i',
    236. 

  236. 		chr(196).chr(174) => 'I', chr(196).chr(175) => 'i',
    237. 

  237. 		chr(196).chr(176) => 'I', chr(196).chr(177) => 'i',
    238. 

  238. 		chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij',
    239. 

  239. 		chr(196).chr(180) => 'J', chr(196).chr(181) => 'j',
    240. 

  240. 		chr(196).chr(182) => 'K', chr(196).chr(183) => 'k',
    241. 

  241. 		chr(196).chr(184) => 'k', chr(196).chr(185) => 'L',
    242. 

  242. 		chr(196).chr(186) => 'l', chr(196).chr(187) => 'L',
    243. 

  243. 		chr(196).chr(188) => 'l', chr(196).chr(189) => 'L',
    244. 

  244. 		chr(196).chr(190) => 'l', chr(196).chr(191) => 'L',
    245. 

  245. 		chr(197).chr(128) => 'l', chr(197).chr(129) => 'L',
    246. 

  246. 		chr(197).chr(130) => 'l', chr(197).chr(131) => 'N',
    247. 

  247. 		chr(197).chr(132) => 'n', chr(197).chr(133) => 'N',
    248. 

  248. 		chr(197).chr(134) => 'n', chr(197).chr(135) => 'N',
    249. 

  249. 		chr(197).chr(136) => 'n', chr(197).chr(137) => 'N',
    250. 

  250. 		chr(197).chr(138) => 'n', chr(197).chr(139) => 'N',
    251. 

  251. 		chr(197).chr(140) => 'O', chr(197).chr(141) => 'o',
    252. 

  252. 		chr(197).chr(142) => 'O', chr(197).chr(143) => 'o',
    253. 

  253. 		chr(197).chr(144) => 'O', chr(197).chr(145) => 'o',
    254. 

  254. 		chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe',
    255. 

  255. 		chr(197).chr(148) => 'R',chr(197).chr(149) => 'r',
    256. 

  256. 		chr(197).chr(150) => 'R',chr(197).chr(151) => 'r',
    257. 

  257. 		chr(197).chr(152) => 'R',chr(197).chr(153) => 'r',
    258. 

  258. 		chr(197).chr(154) => 'S',chr(197).chr(155) => 's',
    259. 

  259. 		chr(197).chr(156) => 'S',chr(197).chr(157) => 's',
    260. 

  260. 		chr(197).chr(158) => 'S',chr(197).chr(159) => 's',
    261. 

  261. 		chr(197).chr(160) => 'S', chr(197).chr(161) => 's',
    262. 

  262. 		chr(197).chr(162) => 'T', chr(197).chr(163) => 't',
    263. 

  263. 		chr(197).chr(164) => 'T', chr(197).chr(165) => 't',
    264. 

  264. 		chr(197).chr(166) => 'T', chr(197).chr(167) => 't',
    265. 

  265. 		chr(197).chr(168) => 'U', chr(197).chr(169) => 'u',
    266. 

  266. 		chr(197).chr(170) => 'U', chr(197).chr(171) => 'u',
    267. 

  267. 		chr(197).chr(172) => 'U', chr(197).chr(173) => 'u',
    268. 

  268. 		chr(197).chr(174) => 'U', chr(197).chr(175) => 'u',
    269. 

  269. 		chr(197).chr(176) => 'U', chr(197).chr(177) => 'u',
    270. 

  270. 		chr(197).chr(178) => 'U', chr(197).chr(179) => 'u',
    271. 

  271. 		chr(197).chr(180) => 'W', chr(197).chr(181) => 'w',
    272. 

  272. 		chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y',
    273. 

  273. 		chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z',
    274. 

  274. 		chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',
    275. 

  275. 		chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',
    276. 

  276. 		chr(197).chr(190) => 'z', chr(197).chr(191) => 's',
    277. 

  277. 		// Euro Sign
    278. 

  278. 		chr(226).chr(130).chr(172) => 'E',
    279. 

  279. 		// GBP (Pound) Sign
    280. 

  280. 		chr(194).chr(163) => '');
    281. 

  281. 

  282. 		$string = strtr($string, $chars);
    283. 

  283. 	} else {
    284. 

  284. 		// Assume ISO-8859-1 if not UTF-8
    285. 

  285. 		$chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158)
    286. 

  286. 			.chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194)
    287. 

  287. 			.chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202)
    288. 

  288. 			.chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210)
    289. 

  289. 			.chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218)
    290. 

  290. 			.chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227)
    291. 

  291. 			.chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235)
    292. 

  292. 			.chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243)
    293. 

  293. 			.chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251)
    294. 

  294. 			.chr(252).chr(253).chr(255);
    295. 

  295. 

  296. 		$chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";
    297. 

  297. 

  298. 		$string = strtr($string, $chars['in'], $chars['out']);
    299. 

  299. 		$double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254));
    300. 

  300. 		$double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th');
    301. 

  301. 		$string = str_replace($double_chars['in'], $double_chars['out'], $string);
    302. 

  302. 	}
    303. 

  303. 

  304. 	return $string;
    305. 

  305. }
    306. 

  306. 

  307. function sanitize_file_name( $name ) { // Like sanitize_title, but with periods
    308. 

  308. 	$name = strtolower( $name );
    309. 

  309. 	$name = preg_replace('/&.+?;/', '', $name); // kill entities
    310. 

  310. 	$name = str_replace( '_', '-', $name );
    311. 

  311. 	$name = preg_replace('/[^a-z0-9\s-.]/', '', $name);
    312. 

  312. 	$name = preg_replace('/\s+/', '-', $name);
    313. 

  313. 	$name = preg_replace('|-+|', '-', $name);
    314. 

  314. 	$name = trim($name, '-');
    315. 

  315. 	return $name;
    316. 

  316. }
    317. 

  317. 

  318. function sanitize_user( $username, $strict = false ) {
    319. 

  319. 	$raw_username = $username;
    320. 

  320. 	$username = strip_tags($username);
    321. 

  321. 	// Kill octets
    322. 

  322. 	$username = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '', $username);
    323. 

  323. 	$username = preg_replace('/&.+?;/', '', $username); // Kill entities
    324. 

  324. 

  325. 	// If strict, reduce to ASCII for max portability.
    326. 

  326. 	if ( $strict )
    327. 

  327. 		$username = preg_replace('|[^a-z0-9 _.\-@]|i', '', $username);
    328. 

  328. 

  329. 	return apply_filters('sanitize_user', $username, $raw_username, $strict);
    330. 

  330. }
    331. 

  331. 

  332. function sanitize_title($title, $fallback_title = '') {
    333. 

  333. 	$title = strip_tags($title);
    334. 

  334. 	$title = apply_filters('sanitize_title', $title);
    335. 

  335. 

  336. 	if ( '' === $title || false === $title )
    337. 

  337. 		$title = $fallback_title;
    338. 

  338. 

  339. 	return $title;
    340. 

  340. }
    341. 

  341. 

  342. function sanitize_title_with_dashes($title) {
    343. 

  343. 	$title = strip_tags($title);
    344. 

  344. 	// Preserve escaped octets.
    345. 

  345. 	$title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
    346. 

  346. 	// Remove percent signs that are not part of an octet.
    347. 

  347. 	$title = str_replace('%', '', $title);
    348. 

  348. 	// Restore octets.
    349. 

  349. 	$title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);
    350. 

  350. 

  351. 	$title = remove_accents($title);
    352. 

  352. 	if (seems_utf8($title)) {
    353. 

  353. 		if (function_exists('mb_strtolower')) {
    354. 

  354. 			$title = mb_strtolower($title, 'UTF-8');
    355. 

  355. 		}
    356. 

  356. 		$title = utf8_uri_encode($title, 200);
    357. 

  357. 	}
    358. 

  358. 

  359. 	$title = strtolower($title);
    360. 

  360. 	$title = preg_replace('/&.+?;/', '', $title); // kill entities
    361. 

  361. 	$title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
    362. 

  362. 	$title = preg_replace('/\s+/', '-', $title);
    363. 

  363. 	$title = preg_replace('|-+|', '-', $title);
    364. 

  364. 	$title = trim($title, '-');
    365. 

  365. 

  366. 	return $title;
    367. 

  367. }
    368. 

  368. 

  369. function convert_chars($content, $deprecated = '') {
    370. 

  370. 	// Translation of invalid Unicode references range to valid range
    371. 

  371. 	$wp_htmltranswinuni = array(
    372. 

  372. 	'&#128;' => '&#8364;', // the Euro sign
    373. 

  373. 	'&#129;' => '',
    374. 

  374. 	'&#130;' => '&#8218;', // these are Windows CP1252 specific characters
    375. 

  375. 	'&#131;' => '&#402;',  // they would look weird on non-Windows browsers
    376. 

  376. 	'&#132;' => '&#8222;',
    377. 

  377. 	'&#133;' => '&#8230;',
    378. 

  378. 	'&#134;' => '&#8224;',
    379. 

  379. 	'&#135;' => '&#8225;',
    380. 

  380. 	'&#136;' => '&#710;',
    381. 

  381. 	'&#137;' => '&#8240;',
    382. 

  382. 	'&#138;' => '&#352;',
    383. 

  383. 	'&#139;' => '&#8249;',
    384. 

  384. 	'&#140;' => '&#338;',
    385. 

  385. 	'&#141;' => '',
    386. 

  386. 	'&#142;' => '&#382;',
    387. 

  387. 	'&#143;' => '',
    388. 

  388. 	'&#144;' => '',
    389. 

  389. 	'&#145;' => '&#8216;',
    390. 

  390. 	'&#146;' => '&#8217;',
    391. 

  391. 	'&#147;' => '&#8220;',
    392. 

  392. 	'&#148;' => '&#8221;',
    393. 

  393. 	'&#149;' => '&#8226;',
    394. 

  394. 	'&#150;' => '&#8211;',
    395. 

  395. 	'&#151;' => '&#8212;',
    396. 

  396. 	'&#152;' => '&#732;',
    397. 

  397. 	'&#153;' => '&#8482;',
    398. 

  398. 	'&#154;' => '&#353;',
    399. 

  399. 	'&#155;' => '&#8250;',
    400. 

  400. 	'&#156;' => '&#339;',
    401. 

  401. 	'&#157;' => '',
    402. 

  402. 	'&#158;' => '',
    403. 

  403. 	'&#159;' => '&#376;'
    404. 

  404. 	);
    405. 

  405. 

  406. 	// Remove metadata tags
    407. 

  407. 	$content = preg_replace('/<title>(.+?)<\/title>/','',$content);
    408. 

  408. 	$content = preg_replace('/<category>(.+?)<\/category>/','',$content);
    409. 

  409. 

  410. 	// Converts lone & characters into &#38; (a.k.a. &amp;)
    411. 

  411. 	$content = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/i', '&#038;$1', $content);
    412. 

  412. 

  413. 	// Fix Word pasting
    414. 

  414. 	$content = strtr($content, $wp_htmltranswinuni);
    415. 

  415. 

  416. 	// Just a little XHTML help
    417. 

  417. 	$content = str_replace('<br>', '<br />', $content);
    418. 

  418. 	$content = str_replace('<hr>', '<hr />', $content);
    419. 

  419. 

  420. 	return $content;
    421. 

  421. }
    422. 

  422. 

  423. function funky_javascript_fix($text) {
    424. 

  424. 	// Fixes for browsers' javascript bugs
    425. 

  425. 	global $is_macIE, $is_winIE;
    426. 

  426. 

  427. 	if ( $is_winIE || $is_macIE )
    428. 

  428. 		$text =  preg_replace("/\%u([0-9A-F]{4,4})/e",  "'&#'.base_convert('\\1',16,10).';'", $text);
    429. 

  429. 

  430. 	return $text;
    431. 

  431. }
    432. 

  432. 

  433. function balanceTags( $text, $force = false ) {
    434. 

  434. 	if ( !$force && get_option('use_balanceTags') == 0 )
    435. 

  435. 		return $text;
    436. 

  436. 	return force_balance_tags( $text );
    437. 

  437. }
    438. 

  438. 

  439. /*
    440. 

  440.  force_balance_tags
    441. 

    442. 

  442.  Balances Tags of string using a modified stack.
    443. 

    444. 

  444.  @param text      Text to be balanced
    445. 

  445.  @param force     Forces balancing, ignoring the value of the option
    446. 

  446.  @return          Returns balanced text
    447. 

  447.  @author          Leonard Lin (leonard@acm.org)
    448. 

  448.  @version         v1.1
    449. 

  449.  @date            November 4, 2001
    450. 

  450.  @license         GPL v2.0
    451. 

  451.  @notes
    452. 

  452.  @changelog
    453. 

  453.  ---  Modified by Scott Reilly (coffee2code) 02 Aug 2004
    454. 

  454. 	1.2  ***TODO*** Make better - change loop condition to $text
    455. 

  455. 	1.1  Fixed handling of append/stack pop order of end text
    456. 

  456. 	     Added Cleaning Hooks
    457. 

  457. 	1.0  First Version
    458. 

  458. */
    459. 

  459. function force_balance_tags( $text ) {
    460. 

  460. 	$tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = '';
    461. 

  461. 	$single_tags = array('br', 'hr', 'img', 'input'); //Known single-entity/self-closing tags
    462. 

  462. 	$nestable_tags = array('blockquote', 'div', 'span'); //Tags that can be immediately nested within themselves
    463. 

  463. 

  464. 	# WP bug fix for comments - in case you REALLY meant to type '< !--'
    465. 

  465. 	$text = str_replace('< !--', '<    !--', $text);
    466. 

  466. 	# WP bug fix for LOVE <3 (and other situations with '<' before a number)
    467. 

  467. 	$text = preg_replace('#<([0-9]{1})#', '&lt;$1', $text);
    468. 

  468. 

  469. 	while (preg_match("/<(\/?\w*)\s*([^>]*)>/",$text,$regex)) {
    470. 

  470. 		$newtext .= $tagqueue;
    471. 

  471. 

  472. 		$i = strpos($text,$regex[0]);
    473. 

  473. 		$l = strlen($regex[0]);
    474. 

  474. 

  475. 		// clear the shifter
    476. 

  476. 		$tagqueue = '';
    477. 

  477. 		// Pop or Push
    478. 

  478. 		if ($regex[1][0] == "/") { // End Tag
    479. 

  479. 			$tag = strtolower(substr($regex[1],1));
    480. 

  480. 			// if too many closing tags
    481. 

  481. 			if($stacksize <= 0) {
    482. 

  482. 				$tag = '';
    483. 

  483. 				//or close to be safe $tag = '/' . $tag;
    484. 

  484. 			}
    485. 

  485. 			// if stacktop value = tag close value then pop
    486. 

  486. 			else if ($tagstack[$stacksize - 1] == $tag) { // found closing tag
    487. 

  487. 				$tag = '</' . $tag . '>'; // Close Tag
    488. 

  488. 				// Pop
    489. 

  489. 				array_pop ($tagstack);
    490. 

  490. 				$stacksize--;
    491. 

  491. 			} else { // closing tag not at top, search for it
    492. 

  492. 				for ($j=$stacksize-1;$j>=0;$j--) {
    493. 

  493. 					if ($tagstack[$j] == $tag) {
    494. 

  494. 					// add tag to tagqueue
    495. 

  495. 						for ($k=$stacksize-1;$k>=$j;$k--){
    496. 

  496. 							$tagqueue .= '</' . array_pop ($tagstack) . '>';
    497. 

  497. 							$stacksize--;
    498. 

  498. 						}
    499. 

  499. 						break;
    500. 

  500. 					}
    501. 

  501. 				}
    502. 

  502. 				$tag = '';
    503. 

  503. 			}
    504. 

  504. 		} else { // Begin Tag
    505. 

  505. 			$tag = strtolower($regex[1]);
    506. 

  506. 

  507. 			// Tag Cleaning
    508. 

  508. 

  509. 			// If self-closing or '', don't do anything.
    510. 

  510. 			if((substr($regex[2],-1) == '/') || ($tag == '')) {
    511. 

  511. 			}
    512. 

  512. 			// ElseIf it's a known single-entity tag but it doesn't close itself, do so
    513. 

  513. 			elseif ( in_array($tag, $single_tags) ) {
    514. 

  514. 				$regex[2] .= '/';
    515. 

  515. 			} else {	// Push the tag onto the stack
    516. 

  516. 				// If the top of the stack is the same as the tag we want to push, close previous tag
    517. 

  517. 				if (($stacksize > 0) && !in_array($tag, $nestable_tags) && ($tagstack[$stacksize - 1] == $tag)) {
    518. 

  518. 					$tagqueue = '</' . array_pop ($tagstack) . '>';
    519. 

  519. 					$stacksize--;
    520. 

  520. 				}
    521. 

  521. 				$stacksize = array_push ($tagstack, $tag);
    522. 

  522. 			}
    523. 

  523. 

  524. 			// Attributes
    525. 

  525. 			$attributes = $regex[2];
    526. 

  526. 			if($attributes) {
    527. 

  527. 				$attributes = ' '.$attributes;
    528. 

  528. 			}
    529. 

  529. 			$tag = '<'.$tag.$attributes.'>';
    530. 

  530. 			//If already queuing a close tag, then put this tag on, too
    531. 

  531. 			if ($tagqueue) {
    532. 

  532. 				$tagqueue .= $tag;
    533. 

  533. 				$tag = '';
    534. 

  534. 			}
    535. 

  535. 		}
    536. 

  536. 		$newtext .= substr($text,0,$i) . $tag;
    537. 

  537. 		$text = substr($text,$i+$l);
    538. 

  538. 	}
    539. 

  539. 

  540. 	// Clear Tag Queue
    541. 

  541. 	$newtext .= $tagqueue;
    542. 

  542. 

  543. 	// Add Remaining text
    544. 

  544. 	$newtext .= $text;
    545. 

  545. 

  546. 	// Empty Stack
    547. 

  547. 	while($x = array_pop($tagstack)) {
    548. 

  548. 		$newtext .= '</' . $x . '>'; // Add remaining tags to close
    549. 

  549. 	}
    550. 

  550. 

  551. 	// WP fix for the bug with HTML comments
    552. 

  552. 	$newtext = str_replace("< !--","<!--",$newtext);
    553. 

  553. 	$newtext = str_replace("<    !--","< !--",$newtext);
    554. 

  554. 

  555. 	return $newtext;
    556. 

  556. }
    557. 

  557. 

  558. function format_to_edit($content, $richedit = false) {
    559. 

  559. 	$content = apply_filters('format_to_edit', $content);
    560. 

  560. 	if (! $richedit )
    561. 

  561. 		$content = htmlspecialchars($content);
    562. 

  562. 	return $content;
    563. 

  563. }
    564. 

  564. 

  565. function format_to_post($content) {
    566. 

  566. 	$content = apply_filters('format_to_post', $content);
    567. 

  567. 	return $content;
    568. 

  568. }
    569. 

  569. 

  570. function zeroise($number,$threshold) { // function to add leading zeros when necessary
    571. 

  571. 	return sprintf('%0'.$threshold.'s', $number);
    572. 

  572. }
    573. 

  573. 

  574. 

  575. function backslashit($string) {
    576. 

  576. 	$string = preg_replace('/^([0-9])/', '\\\\\\\\\1', $string);
    577. 

  577. 	$string = preg_replace('/([a-z])/i', '\\\\\1', $string);
    578. 

  578. 	return $string;
    579. 

  579. }
    580. 

  580. 

  581. function trailingslashit($string) {
    582. 

  582. 	return untrailingslashit($string) . '/';
    583. 

  583. }
    584. 

  584. 

  585. function untrailingslashit($string) {
    586. 

  586. 	return rtrim($string, '/');
    587. 

  587. }
    588. 

  588. 

  589. function addslashes_gpc($gpc) {
    590. 

  590. 	global $wpdb;
    591. 

  591. 

  592. 	if (get_magic_quotes_gpc()) {
    593. 

  593. 		$gpc = stripslashes($gpc);
    594. 

  594. 	}
    595. 

  595. 

  596. 	return $wpdb->escape($gpc);
    597. 

  597. }
    598. 

  598. 

  599. 

  600. function stripslashes_deep($value) {
    601. 

  601. 	 $value = is_array($value) ?
    602. 

  602. 		 array_map('stripslashes_deep', $value) :
    603. 

  603. 		 stripslashes($value);
    604. 

  604. 

  605. 	 return $value;
    606. 

  606. }
    607. 

  607. 

  608. function urlencode_deep($value) {
    609. 

  609. 	 $value = is_array($value) ?
    610. 

  610. 		 array_map('urlencode_deep', $value) :
    611. 

  611. 		 urlencode($value);
    612. 

  612. 

  613. 	 return $value;
    614. 

  614. }
    615. 

  615. 

  616. function antispambot($emailaddy, $mailto=0) {
    617. 

  617. 	$emailNOSPAMaddy = '';
    618. 

  618. 	srand ((float) microtime() * 1000000);
    619. 

  619. 	for ($i = 0; $i < strlen($emailaddy); $i = $i + 1) {
    620. 

  620. 		$j = floor(rand(0, 1+$mailto));
    621. 

  621. 		if ($j==0) {
    622. 

  622. 			$emailNOSPAMaddy .= '&#'.ord(substr($emailaddy,$i,1)).';';
    623. 

  623. 		} elseif ($j==1) {
    624. 

  624. 			$emailNOSPAMaddy .= substr($emailaddy,$i,1);
    625. 

  625. 		} elseif ($j==2) {
    626. 

  626. 			$emailNOSPAMaddy .= '%'.zeroise(dechex(ord(substr($emailaddy, $i, 1))), 2);
    627. 

  627. 		}
    628. 

  628. 	}
    629. 

  629. 	$emailNOSPAMaddy = str_replace('@','&#64;',$emailNOSPAMaddy);
    630. 

  630. 	return $emailNOSPAMaddy;
    631. 

  631. }
    632. 

  632. 

  633. function _make_url_clickable_cb($matches) {
    634. 

  634. 	$ret = '';
    635. 

  635. 	$url = $matches[2];
    636. 

  636. 	$url = clean_url($url);
    637. 

  637. 	if ( empty($url) )
    638. 

  638. 		return $matches[0];
    639. 

  639. 	// removed trailing [.,;:] from URL
    640. 

  640. 	if ( in_array(substr($url, -1), array('.', ',', ';', ':')) === true ) {
    641. 

  641. 		$ret = substr($url, -1);
    642. 

  642. 		$url = substr($url, 0, strlen($url)-1);
    643. 

  643. 	}
    644. 

  644. 	return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>" . $ret;
    645. 

  645. }
    646. 

  646. 

  647. function _make_web_ftp_clickable_cb($matches) {
    648. 

  648. 	$ret = '';
    649. 

  649. 	$dest = $matches[2];
    650. 

  650. 	$dest = 'http://' . $dest;
    651. 

  651. 	$dest = clean_url($dest);
    652. 

  652. 	if ( empty($dest) )
    653. 

  653. 		return $matches[0];
    654. 

  654. 	// removed trailing [,;:] from URL
    655. 

  655. 	if ( in_array(substr($dest, -1), array('.', ',', ';', ':')) === true ) {
    656. 

  656. 		$ret = substr($dest, -1);
    657. 

  657. 		$dest = substr($dest, 0, strlen($dest)-1);
    658. 

  658. 	}
    659. 

  659. 	return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>" . $ret;
    660. 

  660. }
    661. 

  661. 

  662. function _make_email_clickable_cb($matches) {
    663. 

  663. 	$email = $matches[2] . '@' . $matches[3];
    664. 

  664. 	return $matches[1] . "<a href=\"mailto:$email\">$email</a>";
    665. 

  665. }
    666. 

  666. 

  667. function make_clickable($ret) {
    668. 

  668. 	$ret = ' ' . $ret;
    669. 

  669. 	// in testing, using arrays here was found to be faster
    670. 

  670. 	$ret = preg_replace_callback('#([\s>])([\w]+?://[\w\#$%&~/.\-;:=,?@\[\]+]*)#is', '_make_url_clickable_cb', $ret);
    671. 

  671. 	$ret = preg_replace_callback('#([\s>])((www|ftp)\.[\w\#$%&~/.\-;:=,?@\[\]+]*)#is', '_make_web_ftp_clickable_cb', $ret);
    672. 

  672. 	$ret = preg_replace_callback('#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret);
    673. 

  673. 	// this one is not in an array because we need it to run last, for cleanup of accidental links within links
    674. 

  674. 	$ret = preg_replace("#(<a( [^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i", "$1$3</a>", $ret);
    675. 

  675. 	$ret = trim($ret);
    676. 

  676. 	return $ret;
    677. 

  677. }
    678. 

  678. 

  679. function wp_rel_nofollow( $text ) {
    680. 

  680. 	global $wpdb;
    681. 

  681. 	// This is a pre save filter, so text is already escaped.
    682. 

  682. 	$text = stripslashes($text);
    683. 

  683. 	$text = preg_replace_callback('|<a (.+?)>|i', 'wp_rel_nofollow_callback', $text);
    684. 

  684. 	$text = $wpdb->escape($text);
    685. 

  685. 	return $text;
    686. 

  686. }
    687. 

  687. 

  688. function wp_rel_nofollow_callback( $matches ) {
    689. 

  689. 	$text = $matches[1];
    690. 

  690. 	$text = str_replace(array(' rel="nofollow"', " rel='nofollow'"), '', $text);
    691. 

  691. 	return "<a $text rel=\"nofollow\">";
    692. 

  692. }
    693. 

  693. 

  694. function convert_smilies($text) {
    695. 

  695. 	global $wp_smiliessearch, $wp_smiliesreplace;
    696. 

  696.     $output = '';
    697. 

  697. 	if ( get_option('use_smilies') && !empty($wp_smiliessearch) && !empty($wp_smiliesreplace) ) {
    698. 

  698. 		// HTML loop taken from texturize function, could possible be consolidated
    699. 

  699. 		$textarr = preg_split("/(<.*>)/U", $text, -1, PREG_SPLIT_DELIM_CAPTURE); // capture the tags as well as in between
    700. 

  700. 		$stop = count($textarr);// loop stuff
    701. 

  701. 		for ($i = 0; $i < $stop; $i++) {
    702. 

  702. 			$content = $textarr[$i];
    703. 

  703. 			if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag
    704. 

  704. 				$content = preg_replace($wp_smiliessearch, $wp_smiliesreplace, $content);
    705. 

  705. 			}
    706. 

  706. 			$output .= $content;
    707. 

  707. 		}
    708. 

  708. 	} else {
    709. 

  709. 		// return default text.
    710. 

  710. 		$output = $text;
    711. 

  711. 	}
    712. 

  712. 	return $output;
    713. 

  713. }
    714. 

  714. 

  715. 

  716. function is_email($user_email) {
    717. 

  717. 	$chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i";
    718. 

  718. 	if (strpos($user_email, '@') !== false && strpos($user_email, '.') !== false) {
    719. 

  719. 		if (preg_match($chars, $user_email)) {
    720. 

  720. 			return true;
    721. 

  721. 		} else {
    722. 

  722. 			return false;
    723. 

  723. 		}
    724. 

  724. 	} else {
    725. 

  725. 		return false;
    726. 

  726. 	}
    727. 

  727. }
    728. 

  728. 

  729. // used by wp-mail to handle charsets in email subjects
    730. 

  730. function wp_iso_descrambler($string) {
    731. 

  731.   /* this may only work with iso-8859-1, I'm afraid */
    732. 

  732.   if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) {
    733. 

  733.     return $string;
    734. 

  734.   } else {
    735. 

  735.     $subject = str_replace('_', ' ', $matches[2]);
    736. 

  736.     $subject = preg_replace('#\=([0-9a-f]{2})#ei', "chr(hexdec(strtolower('$1')))", $subject);
    737. 

  737.     return $subject;
    738. 

  738.   }
    739. 

  739. }
    740. 

  740. 

  741. 

  742. // give it a date, it will give you the same date as GMT
    743. 

  743. function get_gmt_from_date($string) {
    744. 

  744.   // note: this only substracts $time_difference from the given date
    745. 

  745.   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);
    746. 

  746.   $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
    747. 

  747.   $string_gmt = gmdate('Y-m-d H:i:s', $string_time - get_option('gmt_offset') * 3600);
    748. 

  748.   return $string_gmt;
    749. 

  749. }
    750. 

  750. 

  751. // give it a GMT date, it will give you the same date with $time_difference added
    752. 

  752. function get_date_from_gmt($string) {
    753. 

  753.   // note: this only adds $time_difference to the given date
    754. 

  754.   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);
    755. 

  755.   $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
    756. 

  756.   $string_localtime = gmdate('Y-m-d H:i:s', $string_time + get_option('gmt_offset')*3600);
    757. 

  757.   return $string_localtime;
    758. 

  758. }
    759. 

  759. 

  760. // computes an offset in seconds from an iso8601 timezone
    761. 

  761. function iso8601_timezone_to_offset($timezone) {
    762. 

  762.   // $timezone is either 'Z' or '[+|-]hhmm'
    763. 

  763.   if ($timezone == 'Z') {
    764. 

  764.     $offset = 0;
    765. 

  765.   } else {
    766. 

  766.     $sign    = (substr($timezone, 0, 1) == '+') ? 1 : -1;
    767. 

  767.     $hours   = intval(substr($timezone, 1, 2));
    768. 

  768.     $minutes = intval(substr($timezone, 3, 4)) / 60;
    769. 

  769.     $offset  = $sign * 3600 * ($hours + $minutes);
    770. 

  770.   }
    771. 

  771.   return $offset;
    772. 

  772. }
    773. 

  773. 

  774. // converts an iso8601 date to MySQL DateTime format used by post_date[_gmt]
    775. 

  775. function iso8601_to_datetime($date_string, $timezone = USER) {
    776. 

  776.   if ($timezone == GMT) {
    777. 

  777.     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);
    778. 

  778.     if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset
    779. 

  779.       $offset = iso8601_timezone_to_offset($date_bits[7]);
    780. 

  780.     } else { // we don't have a timezone, so we assume user local timezone (not server's!)
    781. 

  781.       $offset = 3600 * get_option('gmt_offset');
    782. 

  782.     }
    783. 

  783.     $timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]);
    784. 

  784.     $timestamp -= $offset;
    785. 

  785.     return gmdate('Y-m-d H:i:s', $timestamp);
    786. 

  786.   } elseif ($timezone == USER) {
    787. 

  787.     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);
    788. 

  788.   }
    789. 

  789. }
    790. 

  790. 

  791. function popuplinks($text) {
    792. 

  792. 	// Comment text in popup windows should be filtered through this.
    793. 

  793. 	// Right now it's a moderately dumb function, ideally it would detect whether
    794. 

  794. 	// a target or rel attribute was already there and adjust its actions accordingly.
    795. 

  795. 	$text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text);
    796. 

  796. 	return $text;
    797. 

  797. }
    798. 

  798. 

  799. function sanitize_email($email) {
    800. 

  800. 	return preg_replace('/[^a-z0-9+_.@-]/i', '', $email);
    801. 

  801. }
    802. 

  802. 

  803. function human_time_diff( $from, $to = '' ) {
    804. 

  804. 	if ( empty($to) )
    805. 

  805. 		$to = time();
    806. 

  806. 	$diff = (int) abs($to - $from);
    807. 

  807. 	if ($diff <= 3600) {
    808. 

  808. 		$mins = round($diff / 60);
    809. 

  809. 		if ($mins <= 1) {
    810. 

  810. 			$mins = 1;
    811. 

  811. 		}
    812. 

  812. 		$since = sprintf(__ngettext('%s min', '%s mins', $mins), $mins);
    813. 

  813. 	} else if (($diff <= 86400) && ($diff > 3600)) {
    814. 

  814. 		$hours = round($diff / 3600);
    815. 

  815. 		if ($hours <= 1) {
    816. 

  816. 			$hours = 1;
    817. 

  817. 		}
    818. 

  818. 		$since = sprintf(__ngettext('%s hour', '%s hours', $hours), $hours);
    819. 

  819. 	} elseif ($diff >= 86400) {
    820. 

  820. 		$days = round($diff / 86400);
    821. 

  821. 		if ($days <= 1) {
    822. 

  822. 			$days = 1;
    823. 

  823. 		}
    824. 

  824. 		$since = sprintf(__ngettext('%s day', '%s days', $days), $days);
    825. 

  825. 	}
    826. 

  826. 	return $since;
    827. 

  827. }
    828. 

  828. 

  829. function wp_trim_excerpt($text) { // Fakes an excerpt if needed
    830. 

  830. 	if ( '' == $text ) {
    831. 

  831. 		$text = get_the_content('');
    832. 

  832. 		$text = apply_filters('the_content', $text);
    833. 

  833. 		$text = str_replace(']]>', ']]&gt;', $text);
    834. 

  834. 		$text = strip_tags($text);
    835. 

  835. 		$excerpt_length = 55;
    836. 

  836. 		$words = explode(' ', $text, $excerpt_length + 1);
    837. 

  837. 		if (count($words) > $excerpt_length) {
    838. 

  838. 			array_pop($words);
    839. 

  839. 			array_push($words, '[...]');
    840. 

  840. 			$text = implode(' ', $words);
    841. 

  841. 		}
    842. 

  842. 	}
    843. 

  843. 	return $text;
    844. 

  844. }
    845. 

  845. 

  846. function ent2ncr($text) {
    847. 

  847. 	$to_ncr = array(
    848. 

  848. 		'&quot;' => '&#34;',
    849. 

  849. 		'&amp;' => '&#38;',
    850. 

  850. 		'&frasl;' => '&#47;',
    851. 

  851. 		'&lt;' => '&#60;',
    852. 

  852. 		'&gt;' => '&#62;',
    853. 

  853. 		'|' => '&#124;',
    854. 

  854. 		'&nbsp;' => '&#160;',
    855. 

  855. 		'&iexcl;' => '&#161;',
    856. 

  856. 		'&cent;' => '&#162;',
    857. 

  857. 		'&pound;' => '&#163;',
    858. 

  858. 		'&curren;' => '&#164;',
    859. 

  859. 		'&yen;' => '&#165;',
    860. 

  860. 		'&brvbar;' => '&#166;',
    861. 

  861. 		'&brkbar;' => '&#166;',
    862. 

  862. 		'&sect;' => '&#167;',
    863. 

  863. 		'&uml;' => '&#168;',
    864. 

  864. 		'&die;' => '&#168;',
    865. 

  865. 		'&copy;' => '&#169;',
    866. 

  866. 		'&ordf;' => '&#170;',
    867. 

  867. 		'&laquo;' => '&#171;',
    868. 

  868. 		'&not;' => '&#172;',
    869. 

  869. 		'&shy;' => '&#173;',
    870. 

  870. 		'&reg;' => '&#174;',
    871. 

  871. 		'&macr;' => '&#175;',
    872. 

  872. 		'&hibar;' => '&#175;',
    873. 

  873. 		'&deg;' => '&#176;',
    874. 

  874. 		'&plusmn;' => '&#177;',
    875. 

  875. 		'&sup2;' => '&#178;',
    876. 

  876. 		'&sup3;' => '&#179;',
    877. 

  877. 		'&acute;' => '&#180;',
    878. 

  878. 		'&micro;' => '&#181;',
    879. 

  879. 		'&para;' => '&#182;',
    880. 

  880. 		'&middot;' => '&#183;',
    881. 

  881. 		'&cedil;' => '&#184;',
    882. 

  882. 		'&sup1;' => '&#185;',
    883. 

  883. 		'&ordm;' => '&#186;',
    884. 

  884. 		'&raquo;' => '&#187;',
    885. 

  885. 		'&frac14;' => '&#188;',
    886. 

  886. 		'&frac12;' => '&#189;',
    887. 

  887. 		'&frac34;' => '&#190;',
    888. 

  888. 		'&iquest;' => '&#191;',
    889. 

  889. 		'&Agrave;' => '&#192;',
    890. 

  890. 		'&Aacute;' => '&#193;',
    891. 

  891. 		'&Acirc;' => '&#194;',
    892. 

  892. 		'&Atilde;' => '&#195;',
    893. 

  893. 		'&Auml;' => '&#196;',
    894. 

  894. 		'&Aring;' => '&#197;',
    895. 

  895. 		'&AElig;' => '&#198;',
    896. 

  896. 		'&Ccedil;' => '&#199;',
    897. 

  897. 		'&Egrave;' => '&#200;',
    898. 

  898. 		'&Eacute;' => '&#201;',
    899. 

  899. 		'&Ecirc;' => '&#202;',
    900. 

  900. 		'&Euml;' => '&#203;',
    901. 

  901. 		'&Igrave;' => '&#204;',
    902. 

  902. 		'&Iacute;' => '&#205;',
    903. 

  903. 		'&Icirc;' => '&#206;',
    904. 

  904. 		'&Iuml;' => '&#207;',
    905. 

  905. 		'&ETH;' => '&#208;',
    906. 

  906. 		'&Ntilde;' => '&#209;',
    907. 

  907. 		'&Ograve;' => '&#210;',
    908. 

  908. 		'&Oacute;' => '&#211;',
    909. 

  909. 		'&Ocirc;' => '&#212;',
    910. 

  910. 		'&Otilde;' => '&#213;',
    911. 

  911. 		'&Ouml;' => '&#214;',
    912. 

  912. 		'&times;' => '&#215;',
    913. 

  913. 		'&Oslash;' => '&#216;',
    914. 

  914. 		'&Ugrave;' => '&#217;',
    915. 

  915. 		'&Uacute;' => '&#218;',
    916. 

  916. 		'&Ucirc;' => '&#219;',
    917. 

  917. 		'&Uuml;' => '&#220;',
    918. 

  918. 		'&Yacute;' => '&#221;',
    919. 

  919. 		'&THORN;' => '&#222;',
    920. 

  920. 		'&szlig;' => '&#223;',
    921. 

  921. 		'&agrave;' => '&#224;',
    922. 

  922. 		'&aacute;' => '&#225;',
    923. 

  923. 		'&acirc;' => '&#226;',
    924. 

  924. 		'&atilde;' => '&#227;',
    925. 

  925. 		'&auml;' => '&#228;',
    926. 

  926. 		'&aring;' => '&#229;',
    927. 

  927. 		'&aelig;' => '&#230;',
    928. 

  928. 		'&ccedil;' => '&#231;',
    929. 

  929. 		'&egrave;' => '&#232;',
    930. 

  930. 		'&eacute;' => '&#233;',
    931. 

  931. 		'&ecirc;' => '&#234;',
    932. 

  932. 		'&euml;' => '&#235;',
    933. 

  933. 		'&igrave;' => '&#236;',
    934. 

  934. 		'&iacute;' => '&#237;',
    935. 

  935. 		'&icirc;' => '&#238;',
    936. 

  936. 		'&iuml;' => '&#239;',
    937. 

  937. 		'&eth;' => '&#240;',
    938. 

  938. 		'&ntilde;' => '&#241;',
    939. 

  939. 		'&ograve;' => '&#242;',
    940. 

  940. 		'&oacute;' => '&#243;',
    941. 

  941. 		'&ocirc;' => '&#244;',
    942. 

  942. 		'&otilde;' => '&#245;',
    943. 

  943. 		'&ouml;' => '&#246;',
    944. 

  944. 		'&divide;' => '&#247;',
    945. 

  945. 		'&oslash;' => '&#248;',
    946. 

  946. 		'&ugrave;' => '&#249;',
    947. 

  947. 		'&uacute;' => '&#250;',
    948. 

  948. 		'&ucirc;' => '&#251;',
    949. 

  949. 		'&uuml;' => '&#252;',
    950. 

  950. 		'&yacute;' => '&#253;',
    951. 

  951. 		'&thorn;' => '&#254;',
    952. 

  952. 		'&yuml;' => '&#255;',
    953. 

  953. 		'&OElig;' => '&#338;',
    954. 

  954. 		'&oelig;' => '&#339;',
    955. 

  955. 		'&Scaron;' => '&#352;',
    956. 

  956. 		'&scaron;' => '&#353;',
    957. 

  957. 		'&Yuml;' => '&#376;',
    958. 

  958. 		'&fnof;' => '&#402;',
    959. 

  959. 		'&circ;' => '&#710;',
    960. 

  960. 		'&tilde;' => '&#732;',
    961. 

  961. 		'&Alpha;' => '&#913;',
    962. 

  962. 		'&Beta;' => '&#914;',
    963. 

  963. 		'&Gamma;' => '&#915;',
    964. 

  964. 		'&Delta;' => '&#916;',
    965. 

  965. 		'&Epsilon;' => '&#917;',
    966. 

  966. 		'&Zeta;' => '&#918;',
    967. 

  967. 		'&Eta;' => '&#919;',
    968. 

  968. 		'&Theta;' => '&#920;',
    969. 

  969. 		'&Iota;' => '&#921;',
    970. 

  970. 		'&Kappa;' => '&#922;',
    971. 

  971. 		'&Lambda;' => '&#923;',
    972. 

  972. 		'&Mu;' => '&#924;',
    973. 

  973. 		'&Nu;' => '&#925;',
    974. 

  974. 		'&Xi;' => '&#926;',
    975. 

  975. 		'&Omicron;' => '&#927;',
    976. 

  976. 		'&Pi;' => '&#928;',
    977. 

  977. 		'&Rho;' => '&#929;',
    978. 

  978. 		'&Sigma;' => '&#931;',
    979. 

  979. 		'&Tau;' => '&#932;',
    980. 

  980. 		'&Upsilon;' => '&#933;',
    981. 

  981. 		'&Phi;' => '&#934;',
    982. 

  982. 		'&Chi;' => '&#935;',
    983. 

  983. 		'&Psi;' => '&#936;',
    984. 

  984. 		'&Omega;' => '&#937;',
    985. 

  985. 		'&alpha;' => '&#945;',
    986. 

  986. 		'&beta;' => '&#946;',
    987. 

  987. 		'&gamma;' => '&#947;',
    988. 

  988. 		'&delta;' => '&#948;',
    989. 

  989. 		'&epsilon;' => '&#949;',
    990. 

  990. 		'&zeta;' => '&#950;',
    991. 

  991. 		'&eta;' => '&#951;',
    992. 

  992. 		'&theta;' => '&#952;',
    993. 

  993. 		'&iota;' => '&#953;',
    994. 

  994. 		'&kappa;' => '&#954;',
    995. 

  995. 		'&lambda;' => '&#955;',
    996. 

  996. 		'&mu;' => '&#956;',
    997. 

  997. 		'&nu;' => '&#957;',
    998. 

  998. 		'&xi;' => '&#958;',
    999. 

  999. 		'&omicron;' => '&#959;',
    1000. 

  1000. 		'&pi;' => '&#960;',
    1001. 

  1001. 		'&rho;' => '&#961;',
    1002. 

  1002. 		'&sigmaf;' => '&#962;',
    1003. 

  1003. 		'&sigma;' => '&#963;',
    1004. 

  1004. 		'&tau;' => '&#964;',
    1005. 

  1005. 		'&upsilon;' => '&#965;',
    1006. 

  1006. 		'&phi;' => '&#966;',
    1007. 

  1007. 		'&chi;' => '&#967;',
    1008. 

  1008. 		'&psi;' => '&#968;',
    1009. 

  1009. 		'&omega;' => '&#969;',
    1010. 

  1010. 		'&thetasym;' => '&#977;',
    1011. 

  1011. 		'&upsih;' => '&#978;',
    1012. 

  1012. 		'&piv;' => '&#982;',
    1013. 

  1013. 		'&ensp;' => '&#8194;',
    1014. 

  1014. 		'&emsp;' => '&#8195;',
    1015. 

  1015. 		'&thinsp;' => '&#8201;',
    1016. 

  1016. 		'&zwnj;' => '&#8204;',
    1017. 

  1017. 		'&zwj;' => '&#8205;',
    1018. 

  1018. 		'&lrm;' => '&#8206;',
    1019. 

  1019. 		'&rlm;' => '&#8207;',
    1020. 

  1020. 		'&ndash;' => '&#8211;',
    1021. 

  1021. 		'&mdash;' => '&#8212;',
    1022. 

  1022. 		'&lsquo;' => '&#8216;',
    1023. 

  1023. 		'&rsquo;' => '&#8217;',
    1024. 

  1024. 		'&sbquo;' => '&#8218;',
    1025. 

  1025. 		'&ldquo;' => '&#8220;',
    1026. 

  1026. 		'&rdquo;' => '&#8221;',
    1027. 

  1027. 		'&bdquo;' => '&#8222;',
    1028. 

  1028. 		'&dagger;' => '&#8224;',
    1029. 

  1029. 		'&Dagger;' => '&#8225;',
    1030. 

  1030. 		'&bull;' => '&#8226;',
    1031. 

  1031. 		'&hellip;' => '&#8230;',
    1032. 

  1032. 		'&permil;' => '&#8240;',
    1033. 

  1033. 		'&prime;' => '&#8242;',
    1034. 

  1034. 		'&Prime;' => '&#8243;',
    1035. 

  1035. 		'&lsaquo;' => '&#8249;',
    1036. 

  1036. 		'&rsaquo;' => '&#8250;',
    1037. 

  1037. 		'&oline;' => '&#8254;',
    1038. 

  1038. 		'&frasl;' => '&#8260;',
    1039. 

  1039. 		'&euro;' => '&#8364;',
    1040. 

  1040. 		'&image;' => '&#8465;',
    1041. 

  1041. 		'&weierp;' => '&#8472;',
    1042. 

  1042. 		'&real;' => '&#8476;',
    1043. 

  1043. 		'&trade;' => '&#8482;',
    1044. 

  1044. 		'&alefsym;' => '&#8501;',
    1045. 

  1045. 		'&crarr;' => '&#8629;',
    1046. 

  1046. 		'&lArr;' => '&#8656;',
    1047. 

  1047. 		'&uArr;' => '&#8657;',
    1048. 

  1048. 		'&rArr;' => '&#8658;',
    1049. 

  1049. 		'&dArr;' => '&#8659;',
    1050. 

  1050. 		'&hArr;' => '&#8660;',
    1051. 

  1051. 		'&forall;' => '&#8704;',
    1052. 

  1052. 		'&part;' => '&#8706;',
    1053. 

  1053. 		'&exist;' => '&#8707;',
    1054. 

  1054. 		'&empty;' => '&#8709;',
    1055. 

  1055. 		'&nabla;' => '&#8711;',
    1056. 

  1056. 		'&isin;' => '&#8712;',
    1057. 

  1057. 		'&notin;' => '&#8713;',
    1058. 

  1058. 		'&ni;' => '&#8715;',
    1059. 

  1059. 		'&prod;' => '&#8719;',
    1060. 

  1060. 		'&sum;' => '&#8721;',
    1061. 

  1061. 		'&minus;' => '&#8722;',
    1062. 

  1062. 		'&lowast;' => '&#8727;',
    1063. 

  1063. 		'&radic;' => '&#8730;',
    1064. 

  1064. 		'&prop;' => '&#8733;',
    1065. 

  1065. 		'&infin;' => '&#8734;',
    1066. 

  1066. 		'&ang;' => '&#8736;',
    1067. 

  1067. 		'&and;' => '&#8743;',
    1068. 

  1068. 		'&or;' => '&#8744;',
    1069. 

  1069. 		'&cap;' => '&#8745;',
    1070. 

  1070. 		'&cup;' => '&#8746;',
    1071. 

  1071. 		'&int;' => '&#8747;',
    1072. 

  1072. 		'&there4;' => '&#8756;',
    1073. 

  1073. 		'&sim;' => '&#8764;',
    1074. 

  1074. 		'&cong;' => '&#8773;',
    1075. 

  1075. 		'&asymp;' => '&#8776;',
    1076. 

  1076. 		'&ne;' => '&#8800;',
    1077. 

  1077. 		'&equiv;' => '&#8801;',
    1078. 

  1078. 		'&le;' => '&#8804;',
    1079. 

  1079. 		'&ge;' => '&#8805;',
    1080. 

  1080. 		'&sub;' => '&#8834;',
    1081. 

  1081. 		'&sup;' => '&#8835;',
    1082. 

  1082. 		'&nsub;' => '&#8836;',
    1083. 

  1083. 		'&sube;' => '&#8838;',
    1084. 

  1084. 		'&supe;' => '&#8839;',
    1085. 

  1085. 		'&oplus;' => '&#8853;',
    1086. 

  1086. 		'&otimes;' => '&#8855;',
    1087. 

  1087. 		'&perp;' => '&#8869;',
    1088. 

  1088. 		'&sdot;' => '&#8901;',
    1089. 

  1089. 		'&lceil;' => '&#8968;',
    1090. 

  1090. 		'&rceil;' => '&#8969;',
    1091. 

  1091. 		'&lfloor;' => '&#8970;',
    1092. 

  1092. 		'&rfloor;' => '&#8971;',
    1093. 

  1093. 		'&lang;' => '&#9001;',
    1094. 

  1094. 		'&rang;' => '&#9002;',
    1095. 

  1095. 		'&larr;' => '&#8592;',
    1096. 

  1096. 		'&uarr;' => '&#8593;',
    1097. 

  1097. 		'&rarr;' => '&#8594;',
    1098. 

  1098. 		'&darr;' => '&#8595;',
    1099. 

  1099. 		'&harr;' => '&#8596;',
    1100. 

  1100. 		'&loz;' => '&#9674;',
    1101. 

  1101. 		'&spades;' => '&#9824;',
    1102. 

  1102. 		'&clubs;' => '&#9827;',
    1103. 

  1103. 		'&hearts;' => '&#9829;',
    1104. 

  1104. 		'&diams;' => '&#9830;'
    1105. 

  1105. 	);
    1106. 

  1106. 

  1107. 	return str_replace( array_keys($to_ncr), array_values($to_ncr), $text );
    1108. 

  1108. }
    1109. 

  1109. 

  1110. function wp_richedit_pre($text) {
    1111. 

  1111. 	// Filtering a blank results in an annoying <br />\n
    1112. 

  1112. 	if ( empty($text) ) return apply_filters('richedit_pre', '');
    1113. 

  1113. 

  1114. 	$output = $text;
    1115. 

  1115. 	$output = convert_chars($output);
    1116. 

  1116. 	$output = wpautop($output);
    1117. 

  1117. 

  1118. 	// These must be double-escaped or planets will collide.
    1119. 

  1119. 	$output = str_replace('&lt;', '&amp;lt;', $output);
    1120. 

  1120. 	$output = str_replace('&gt;', '&amp;gt;', $output);
    1121. 

  1121. 

  1122. 	return apply_filters('richedit_pre', $output);
    1123. 

  1123. }
    1124. 

  1124. 

  1125. function wp_htmledit_pre($output) {
    1126. 

  1126. 	if ( !empty($output) )
    1127. 

  1127. 		$output = htmlspecialchars($output, ENT_NOQUOTES); // convert only < > &
    1128. 

  1128. 

  1129. 	return apply_filters('htmledit_pre', $output);
    1130. 

  1130. }
    1131. 

  1131. 

  1132. function clean_url( $url, $protocols = null, $context = 'display' ) {
    1133. 

  1133. 	$original_url = $url;
    1134. 

  1134. 

  1135. 	if ('' == $url) return $url;
    1136. 

  1136. 	$url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@()]|i', '', $url);
    1137. 

  1137. 	$strip = array('%0d', '%0a');
    1138. 

  1138. 	$url = str_replace($strip, '', $url);
    1139. 

  1139. 	$url = str_replace(';//', '://', $url);
    1140. 

  1140. 	/* If the URL doesn't appear to contain a scheme, we
    1141. 

  1141. 	 * presume it needs http:// appended (unless a relative
    1142. 

  1142. 	 * link starting with / or a php file).
    1143. 

  1143. 	*/
    1144. 

  1144. 	if ( strpos($url, ':') === false &&
    1145. 

  1145. 		substr( $url, 0, 1 ) != '/' && !preg_match('/^[a-z0-9-]+?\.php/i', $url) )
    1146. 

  1146. 		$url = 'http://' . $url;
    1147. 

  1147. 

  1148. 	// Replace ampersands ony when displaying.
    1149. 

  1149. 	if ( 'display' == $context )
    1150. 

  1150. 		$url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&#038;$1', $url);
    1151. 

  1151. 

  1152. 	if ( !is_array($protocols) )
    1153. 

  1153. 		$protocols = array('http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet');
    1154. 

  1154. 	if ( wp_kses_bad_protocol( $url, $protocols ) != $url )
    1155. 

  1155. 		return '';
    1156. 

  1156. 

  1157. 	return apply_filters('clean_url', $url, $original_url, $context);
    1158. 

  1158. }
    1159. 

  1159. 

  1160. function sanitize_url( $url, $protocols = null ) {
    1161. 

  1161. 	return clean_url( $url, $protocols, 'db');
    1162. 

  1162. }
    1163. 

  1163. 

  1164. // Borrowed from the PHP Manual user notes. Convert entities, while
    1165. 

  1165. // preserving already-encoded entities:
    1166. 

  1166. function htmlentities2($myHTML) {
    1167. 

  1167. 	$translation_table=get_html_translation_table (HTML_ENTITIES,ENT_QUOTES);
    1168. 

  1168. 	$translation_table[chr(38)] = '&';
    1169. 

  1169. 	return preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/","&amp;" , strtr($myHTML, $translation_table));
    1170. 

  1170. }
    1171. 

  1171. 

  1172. // Escape single quotes, specialchar double quotes, and fix line endings.
    1173. 

  1173. function js_escape($text) {
    1174. 

  1174. 	$safe_text = wp_specialchars($text, 'double');
    1175. 

  1175. 	$safe_text = preg_replace('/&#(x)?0*(?(1)27|39);?/i', "'", stripslashes($safe_text));
    1176. 

  1176. 	$safe_text = preg_replace("/\r?\n/", "\\n", addslashes($safe_text));
    1177. 

  1177. 	return apply_filters('js_escape', $safe_text, $text);
    1178. 

  1178. }
    1179. 

  1179. 

  1180. // Escaping for HTML attributes
    1181. 

  1181. function attribute_escape($text) {
    1182. 

  1182. 	$safe_text = wp_specialchars($text, true);
    1183. 

  1183. 	return apply_filters('attribute_escape', $safe_text, $text);
    1184. 

  1184. }
    1185. 

  1185. 

  1186. // Escape a HTML tag name
    1187. 

  1187. function tag_escape($tag_name) {
    1188. 

  1188. 	$safe_tag = strtolower( preg_replace('[^a-zA-Z_:]', '', $tag_name) );
    1189. 

  1189. 	return apply_filters('tag_escape', $safe_tag, $tag_name);
    1190. 

  1190. }
    1191. 

  1191. 

  1192. /**
    1193. 

  1193.  * Escapes text for SQL LIKE special characters % and _
    1194. 

  1194.  *
    1195. 

  1195.  * @param string text the text to be escaped
    1196. 

  1196.  * @return string text, safe for inclusion in LIKE query
    1197. 

  1197.  */
    1198. 

  1198. function like_escape($text) {
    1199. 

  1199. 	return str_replace(array("%", "_"), array("\\%", "\\_"), $text);
    1200. 

  1200. }
    1201. 

  1201. 

  1202. function wp_make_link_relative( $link ) {
    1203. 

  1203. 	return preg_replace('|https?://[^/]+(/.*)|i', '$1', $link );
    1204. 

  1204. }
    1205. 

  1205. 

  1206. function sanitize_option($option, $value) { // Remember to call stripslashes!
    1207. 

  1207. 

  1208. 	switch ($option) {
    1209. 

  1209. 		case 'admin_email':
    1210. 

  1210. 			$value = sanitize_email($value);
    1211. 

  1211. 			break;
    1212. 

  1212. 

  1213. 		case 'default_post_edit_rows':
    1214. 

  1214. 		case 'mailserver_port':
    1215. 

  1215. 		case 'comment_max_links':
    1216. 

  1216. 		case 'page_on_front':
    1217. 

  1217. 		case 'rss_excerpt_length':
    1218. 

  1218. 		case 'default_category':
    1219. 

  1219. 		case 'default_email_category':
    1220. 

  1220. 		case 'default_link_category':
    1221. 

  1221. 			$value = abs((int) $value);
    1222. 

  1222. 			break;
    1223. 

  1223. 

  1224. 		case 'posts_per_page':
    1225. 

  1225. 		case 'posts_per_rss':
    1226. 

  1226. 			$value = (int) $value;
    1227. 

  1227. 			if ( empty($value) ) $value = 1;
    1228. 

  1228. 			if ( $value < -1 ) $value = abs($value);
    1229. 

  1229. 			break;
    1230. 

  1230. 

  1231. 		case 'default_ping_status':
    1232. 

  1232. 		case 'default_comment_status':
    1233. 

  1233. 			// Options that if not there have 0 value but need to be something like "closed"
    1234. 

  1234. 			if ( $value == '0' || $value == '')
    1235. 

  1235. 				$value = 'closed';
    1236. 

  1236. 			break;
    1237. 

  1237. 

  1238. 		case 'blogdescription':
    1239. 

  1239. 		case 'blogname':
    1240. 

  1240. 			$value = addslashes($value);
    1241. 

  1241. 			$value = wp_filter_post_kses( $value ); // calls stripslashes then addslashes
    1242. 

  1242. 			$value = stripslashes($value);
    1243. 

  1243. 			$value = wp_specialchars( $value );
    1244. 

  1244. 			break;
    1245. 

  1245. 

  1246. 		case 'blog_charset':
    1247. 

  1247. 			$value = preg_replace('/[^a-zA-Z0-9_-]/', '', $value); // strips slashes
    1248. 

  1248. 			break;
    1249. 

  1249. 

  1250. 		case 'date_format':
    1251. 

  1251. 		case 'time_format':
    1252. 

  1252. 		case 'mailserver_url':
    1253. 

  1253. 		case 'mailserver_login':
    1254. 

  1254. 		case 'mailserver_pass':
    1255. 

  1255. 		case 'ping_sites':
    1256. 

  1256. 		case 'upload_path':
    1257. 

  1257. 			$value = strip_tags($value);
    1258. 

  1258. 			$value = addslashes($value);
    1259. 

  1259. 			$value = wp_filter_kses($value); // calls stripslashes then addslashes
    1260. 

  1260. 			$value = stripslashes($value);
    1261. 

  1261. 			break;
    1262. 

  1262. 

  1263. 		case 'gmt_offset':
    1264. 

  1264. 			$value = preg_replace('/[^0-9:.-]/', '', $value); // strips slashes
    1265. 

  1265. 			break;
    1266. 

  1266. 

  1267. 		case 'siteurl':
    1268. 

  1268. 		case 'home':
    1269. 

  1269. 			$value = stripslashes($value);
    1270. 

  1270. 			$value = clean_url($value);
    1271. 

  1271. 			break;
    1272. 

  1272. 		default :
    1273. 

  1273. 			$value = apply_filters("sanitize_option_{$option}", $value, $option);
    1274. 

  1274. 			break;
    1275. 

  1275. 	}
    1276. 

  1276. 

  1277. 	return $value;
    1278. 

  1278. }
    1279. 

  1279. 

  1280. function wp_parse_str( $string, &$array ) {
    1281. 

  1281. 	parse_str( $string, $array );
    1282. 

  1282. 	if ( get_magic_quotes_gpc() )
    1283. 

  1283. 		$array = stripslashes_deep( $array ); // parse_str() adds slashes if magicquotes is on.  See: http://php.net/parse_str
    1284. 

  1284. 	$array = apply_filters( 'wp_parse_str', $array );
    1285. 

  1285. }
    1286. 

  1286. 

  1287. // Convert lone less than signs.  KSES already converts lone greater than signs.
    1288. 

  1288. function wp_pre_kses_less_than( $text ) {
    1289. 

  1289. 	return preg_replace_callback('%<[^>]*?((?=<)|>|$)%', 'wp_pre_kses_less_than_callback', $text);
    1290. 

  1290. }
    1291. 

  1291. 

  1292. function wp_pre_kses_less_than_callback( $matches ) {
    1293. 

  1293. 	if ( false === strpos($matches[0], '>') )
    1294. 

  1294. 		return wp_specialchars($matches[0]);
    1295. 

  1295. 	return $matches[0];
    1296. 

  1296. }
    1297. 

  1297. 

  1298. /**
    1299. 

  1299.  * wp_sprintf() - sprintf() with filters
    1300. 

  1300.  */
    1301. 

  1301. function wp_sprintf( $pattern ) {
    1302. 

  1302. 	$args = func_get_args( );
    1303. 

  1303. 	$len = strlen($pattern);
    1304. 

  1304. 	$start = 0;
    1305. 

  1305. 	$result = '';
    1306. 

  1306. 	$arg_index = 0;
    1307. 

  1307. 	while ( $len > $start ) {
    1308. 

  1308. 		// Last character: append and break
    1309. 

  1309. 		if ( strlen($pattern) - 1 == $start ) {
    1310. 

  1310. 			$result .= substr($pattern, -1);
    1311. 

  1311. 			break;
    1312. 

  1312. 		}
    1313. 

  1313. 

  1314. 		// Literal %: append and continue
    1315. 

  1315. 		if ( substr($pattern, $start, 2) == '%%' ) {
    1316. 

  1316. 			$start += 2;
    1317. 

  1317. 			$result .= '%';
    1318. 

  1318. 			continue;
    1319. 

  1319. 		}
    1320. 

  1320. 

  1321. 		// Get fragment before next %
    1322. 

  1322. 		$end = strpos($pattern, '%', $start + 1);
    1323. 

  1323. 		if ( false === $end )
    1324. 

  1324. 			$end = $len;
    1325. 

  1325. 		$fragment = substr($pattern, $start, $end - $start);
    1326. 

  1326. 

  1327. 		// Fragment has a specifier
    1328. 

  1328. 		if ( $pattern{$start} == '%' ) {
    1329. 

  1329. 			// Find numbered arguments or take the next one in order
    1330. 

  1330. 			if ( preg_match('/^%(\d+)\$/', $fragment, $matches) ) {
    1331. 

  1331. 				$arg = isset($args[$matches[1]]) ? $args[$matches[1]] : '';
    1332. 

  1332. 				$fragment = str_replace("%{$matches[1]}$", '%', $fragment);
    1333. 

  1333. 			} else {
    1334. 

  1334. 				++$arg_index;
    1335. 

  1335. 				$arg = isset($args[$arg_index]) ? $args[$arg_index] : '';
    1336. 

  1336. 			}
    1337. 

  1337. 

  1338. 			// Apply filters OR sprintf
    1339. 

  1339. 			$_fragment = apply_filters( 'wp_sprintf', $fragment, $arg );
    1340. 

  1340. 			if ( $_fragment != $fragment )
    1341. 

  1341. 				$fragment = $_fragment;
    1342. 

  1342. 			else
    1343. 

  1343. 				$fragment = sprintf($fragment, strval($arg) );
    1344. 

  1344. 		}
    1345. 

  1345. 

  1346. 		// Append to result and move to next fragment
    1347. 

  1347. 		$result .= $fragment;
    1348. 

  1348. 		$start = $end;
    1349. 

  1349. 	}
    1350. 

  1350. 	return $result;
    1351. 

  1351. }
    1352. 

  1352. 

  1353. /**
    1354. 

  1354.  * wp_sprintf_l - List specifier %l for wp_sprintf
    1355. 

  1355.  *
    1356. 

  1356.  * @param unknown_type $pattern
    1357. 

  1357.  * @param unknown_type $args
    1358. 

  1358.  * @return unknown
    1359. 

  1359.  */
    1360. 

  1360. function wp_sprintf_l($pattern, $args) {
    1361. 

  1361. 	// Not a match
    1362. 

  1362. 	if ( substr($pattern, 0, 2) != '%l' )
    1363. 

  1363. 		return $pattern;
    1364. 

  1364. 

  1365. 	// Nothing to work with
    1366. 

  1366. 	if ( empty($args) )
    1367. 

  1367. 		return '';
    1368. 

  1368. 

  1369. 	// Translate and filter the delimiter set (avoid ampersands and entities here)
    1370. 

  1370. 	$l = apply_filters('wp_sprintf_l', array(
    1371. 

  1371. 		'between'          => _c(', |between list items'),
    1372. 

  1372. 		'between_last_two' => _c(', and |between last two list items'),
    1373. 

  1373. 		'between_only_two' => _c(' and |between only two list items'),
    1374. 

  1374. 		));
    1375. 

  1375. 

  1376. 	$args = (array) $args;
    1377. 

  1377. 	$result = array_shift($args);
    1378. 

  1378. 	if ( count($args) == 1 )
    1379. 

  1379. 		$result .= $l['between_only_two'] . array_shift($args);
    1380. 

  1380. 	// Loop when more than two args
    1381. 

  1381. 	while ( count($args) ) {
    1382. 

  1382. 		$arg = array_shift($args);
    1383. 

  1383. 		if ( $i == 1 )
    1384. 

  1384. 			$result .= $l['between_last_two'] . $arg;
    1385. 

  1385. 		else
    1386. 

  1386. 			$result .= $l['between'] . $arg;
    1387. 

  1387. 	}
    1388. 

  1388. 	return $result . substr($pattern, 2);
    1389. 

  1389. }
    1390. 

  1390. 

  1391. /**
    1392. 

  1392.  * Safely extracts not more than the first $count characters from html string
    1393. 

  1393.  *
    1394. 

  1394.  * UTF-8, tags and entities safe prefix extraction. Entities inside will *NOT* be
    1395. 

  1395.  * counted as one character. For example &amp; will be counted as 4, &lt; as 3, etc.
    1396. 

  1396.  *
    1397. 

  1397.  * @param integer $str String to get the excerpt from
    1398. 

  1398.  * @param integer $count Maximum number of characters to take
    1399. 

  1399.  * @eaturn string the excerpt
    1400. 

  1400.  */
    1401. 

  1401. function wp_html_excerpt( $str, $count ) {
    1402. 

  1402. 	$str = strip_tags( $str );
    1403. 

  1403. 	$str = mb_strcut( $str, 0, $count );
    1404. 

  1404. 	// remove part of an entity at the end
    1405. 

  1405. 	$str = preg_replace( '/&[^;\s]{0,6}$/', '', $str );
    1406. 

  1406. 	return $str;
    1407. 

  1407. }
    1408. 

  1408. 

  1409. ?>
    1410. 

  1410.