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38293cef03
git-svn-id: http://svn.automattic.com/wordpress/trunk@1372 1a063a9b-81f0-0310-95a4-ce76da25c4cd
448 lines
16 KiB
PHP
448 lines
16 KiB
PHP
<?php
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add_action('sanitize_title', 'sanitize_title_with_dashes');
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function wptexturize($text) {
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$output = '';
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// Capture tags and everything inside them
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$textarr = preg_split("/(<.*>)/Us", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
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$stop = count($textarr); $next = true; // loop stuff
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for ($i = 0; $i < $stop; $i++) {
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$curl = $textarr[$i];
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if (isset($curl{0}) && '<' != $curl{0} && $next) { // If it's not a tag
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$curl = str_replace('---', '—', $curl);
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$curl = str_replace('--', '–', $curl);
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$curl = str_replace("...", '…', $curl);
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$curl = str_replace('``', '“', $curl);
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// This is a hack, look at this more later. It works pretty well though.
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$cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round");
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$cockneyreplace = array("’tain’t","’twere","’twas","’tis","’twill","’til","’bout","’nuff","’round");
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$curl = str_replace($cockney, $cockneyreplace, $curl);
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$curl = preg_replace("/'s/", '’s', $curl);
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$curl = preg_replace("/'(\d\d(?:’|')?s)/", "’$1", $curl);
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$curl = preg_replace('/(\s|\A|")\'/', '$1‘', $curl);
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$curl = preg_replace('/(\d+)"/', '$1″', $curl);
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$curl = preg_replace("/(\d+)'/", '$1′', $curl);
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$curl = preg_replace("/(\S)'([^'\s])/", "$1’$2", $curl);
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$curl = preg_replace('/(\s|\A)"(?!\s)/', '$1“$2', $curl);
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$curl = preg_replace('/"(\s|\Z)/', '”$1', $curl);
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$curl = preg_replace("/'([\s.]|\Z)/", '’$1', $curl);
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$curl = preg_replace("/\(tm\)/i", '™', $curl);
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$curl = preg_replace("/\(c\)/i", '©', $curl);
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$curl = preg_replace("/\(r\)/i", '®', $curl);
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$curl = str_replace("''", '”', $curl);
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$curl = preg_replace('/(d+)x(\d+)/', "$1×$2", $curl);
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} elseif (strstr($curl, '<code') || strstr($curl, '<pre') || strstr($curl, '<kbd' || strstr($curl, '<style') || strstr($curl, '<script'))) {
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// strstr is fast
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$next = false;
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} else {
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$next = true;
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}
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$curl = preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $curl);
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$output .= $curl;
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}
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return $output;
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}
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function clean_pre($text) {
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$text = stripslashes($text);
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$text = str_replace('<br />', '', $text);
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return $text;
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}
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function wpautop($pee, $br = 1) {
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$pee = $pee . "\n"; // just to make things a little easier, pad the end
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$pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
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// Space things out a little
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$pee = preg_replace('!(<(?:table|thead|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)!', "\n$1", $pee);
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$pee = preg_replace('!(</(?:table|thead|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])>)!', "$1\n", $pee);
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$pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
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$pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates
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$pee = preg_replace('/\n?(.+?)(?:\n\s*\n|\z)/s', "\t<p>$1</p>\n", $pee); // make paragraphs, including one at the end
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$pee = preg_replace('|<p>\s*?</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace
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$pee = preg_replace('!<p>\s*(</?(?:table|thead|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)\s*</p>!', "$1", $pee); // don't pee all over a tag
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$pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists
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$pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee);
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$pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee);
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$pee = preg_replace('!<p>\s*(</?(?:table|thead|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)!', "$1", $pee);
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$pee = preg_replace('!(</?(?:table|thead|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)\s*</p>!', "$1", $pee);
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if ($br) $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
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$pee = preg_replace('!(</?(?:table|thead|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)\s*<br />!', "$1", $pee);
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$pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)>)!', '$1', $pee);
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$pee = preg_replace('!(<pre.*?>)(.*?)</pre>!ise', " stripslashes('$1') . clean_pre('$2') . '</pre>' ", $pee);
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return $pee;
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}
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function seems_utf8($Str) { # by bmorel at ssi dot fr
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for ($i=0; $i<strlen($Str); $i++) {
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if (ord($Str[$i]) < 0x80) continue; # 0bbbbbbb
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elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
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elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
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elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
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elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
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elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
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else return false; # Does not match any model
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for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
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if ((++$i == strlen($Str)) || ((ord($Str[$i]) & 0xC0) != 0x80))
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return false;
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}
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}
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return true;
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}
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function remove_accents($string) {
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$chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158)
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.chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194)
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.chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202)
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.chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210)
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.chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218)
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.chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227)
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.chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235)
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.chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243)
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.chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251)
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.chr(252).chr(253).chr(255);
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$chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";
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if (seems_utf8($string)) {
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$invalid_latin_chars = array(chr(197).chr(146) => 'OE', chr(197).chr(147) => 'oe', chr(197).chr(160) => 'S', chr(197).chr(189) => 'Z', chr(197).chr(161) => 's', chr(197).chr(190) => 'z', chr(226).chr(130).chr(172) => 'E');
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$string = utf8_decode(strtr($string, $invalid_latin_chars));
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}
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$string = strtr($string, $chars['in'], $chars['out']);
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$double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254));
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$double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th');
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$string = str_replace($double_chars['in'], $double_chars['out'], $string);
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return $string;
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}
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function sanitize_title($title) {
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$title = do_action('sanitize_title', $title);
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return $title;
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}
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function sanitize_title_with_dashes($title) {
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$title = remove_accents($title);
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$title = strtolower($title);
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$title = preg_replace('/&.+?;/', '', $title); // kill entities
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$title = preg_replace('/[^a-z0-9 _-]/', '', $title);
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$title = preg_replace('/\s+/', ' ', $title);
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$title = str_replace(' ', '-', $title);
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$title = preg_replace('|-+|', '-', $title);
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$title = trim($title, '-');
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return $title;
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}
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function convert_chars($content, $flag = 'obsolete') {
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global $wp_htmltranswinuni;
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// Remove metadata tags
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$content = preg_replace('/<title>(.+?)<\/title>/','',$content);
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$content = preg_replace('/<category>(.+?)<\/category>/','',$content);
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// Converts lone & characters into & (a.k.a. &)
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$content = preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $content);
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// Fix Word pasting
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$content = strtr($content, $wp_htmltranswinuni);
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// Just a little XHTML help
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$content = str_replace('<br>', '<br />', $content);
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$content = str_replace('<hr>', '<hr />', $content);
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return $content;
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}
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/*
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balanceTags
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Balances Tags of string using a modified stack.
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@param text Text to be balanced
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@return Returns balanced text
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@author Leonard Lin (leonard@acm.org)
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@version v1.1
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@date November 4, 2001
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@license GPL v2.0
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@notes
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@changelog
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1.2 ***TODO*** Make better - change loop condition to $text
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1.1 Fixed handling of append/stack pop order of end text
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Added Cleaning Hooks
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1.0 First Version
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*/
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function balanceTags($text, $is_comment = 0) {
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if (get_settings('use_balanceTags') == 0) {
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return $text;
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}
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$tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = '';
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# WP bug fix for comments - in case you REALLY meant to type '< !--'
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$text = str_replace('< !--', '< !--', $text);
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# WP bug fix for LOVE <3 (and other situations with '<' before a number)
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$text = preg_replace('#<([0-9]{1})#', '<$1', $text);
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while (preg_match("/<(\/?\w*)\s*([^>]*)>/",$text,$regex)) {
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$newtext = $newtext . $tagqueue;
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$i = strpos($text,$regex[0]);
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$l = strlen($tagqueue) + strlen($regex[0]);
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// clear the shifter
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$tagqueue = '';
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// Pop or Push
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if ($regex[1][0] == "/") { // End Tag
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$tag = strtolower(substr($regex[1],1));
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// if too many closing tags
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if($stacksize <= 0) {
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$tag = '';
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//or close to be safe $tag = '/' . $tag;
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}
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// if stacktop value = tag close value then pop
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else if ($tagstack[$stacksize - 1] == $tag) { // found closing tag
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$tag = '</' . $tag . '>'; // Close Tag
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// Pop
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array_pop ($tagstack);
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$stacksize--;
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} else { // closing tag not at top, search for it
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for ($j=$stacksize-1;$j>=0;$j--) {
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if ($tagstack[$j] == $tag) {
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// add tag to tagqueue
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for ($k=$stacksize-1;$k>=$j;$k--){
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$tagqueue .= '</' . array_pop ($tagstack) . '>';
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$stacksize--;
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}
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break;
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}
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}
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$tag = '';
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}
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} else { // Begin Tag
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$tag = strtolower($regex[1]);
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// Tag Cleaning
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// Push if not img or br or hr
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if($tag != 'br' && $tag != 'img' && $tag != 'hr') {
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$stacksize = array_push ($tagstack, $tag);
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}
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// Attributes
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// $attributes = $regex[2];
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$attributes = $regex[2];
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if($attributes) {
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$attributes = ' '.$attributes;
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}
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$tag = '<'.$tag.$attributes.'>';
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}
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$newtext .= substr($text,0,$i) . $tag;
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$text = substr($text,$i+$l);
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}
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// Clear Tag Queue
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$newtext = $newtext . $tagqueue;
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// Add Remaining text
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$newtext .= $text;
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// Empty Stack
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while($x = array_pop($tagstack)) {
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$newtext = $newtext . '</' . $x . '>'; // Add remaining tags to close
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}
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// WP fix for the bug with HTML comments
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$newtext = str_replace("< !--","<!--",$newtext);
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$newtext = str_replace("< !--","< !--",$newtext);
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return $newtext;
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}
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function format_to_edit($content) {
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$content = stripslashes($content);
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$content = apply_filters('format_to_edit', $content);
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$content = htmlspecialchars($content);
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return $content;
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}
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function format_to_post($content) {
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global $wpdb;
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$content = apply_filters('format_to_post', $content);
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return $content;
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}
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function zeroise($number,$threshold) { // function to add leading zeros when necessary
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$l=strlen($number);
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if ($l<$threshold)
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for ($i=0; $i<($threshold-$l); $i=$i+1) { $number='0'.$number; }
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return $number;
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}
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function backslashit($string) {
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$string = preg_replace('/([a-z])/i', '\\\\\1', $string);
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return $string;
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}
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function trailingslashit($string) {
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if ( '/' != substr($string, -1)) {
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$string .= '/';
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}
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return $string;
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}
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function addslashes_gpc($gpc) {
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if (!get_magic_quotes_gpc()) {
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$gpc = addslashes($gpc);
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}
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return $gpc;
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}
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function antispambot($emailaddy, $mailto=0) {
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$emailNOSPAMaddy = '';
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srand ((float) microtime() * 1000000);
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for ($i = 0; $i < strlen($emailaddy); $i = $i + 1) {
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$j = floor(rand(0, 1+$mailto));
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if ($j==0) {
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$emailNOSPAMaddy .= '&#'.ord(substr($emailaddy,$i,1)).';';
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} elseif ($j==1) {
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$emailNOSPAMaddy .= substr($emailaddy,$i,1);
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} elseif ($j==2) {
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$emailNOSPAMaddy .= '%'.zeroise(dechex(ord(substr($emailaddy, $i, 1))), 2);
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}
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}
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$emailNOSPAMaddy = str_replace('@','@',$emailNOSPAMaddy);
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return $emailNOSPAMaddy;
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}
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function make_clickable($text) { // original function: phpBB, extended here for AIM & ICQ
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$ret = " " . $text;
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$ret = preg_replace("#([\n ])([a-z]+?)://([^, <>{}\n\r]+)#i", "\\1<a href=\"\\2://\\3\" target=\"_blank\">\\2://\\3</a>", $ret);
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$ret = preg_replace("#([\n ])aim:([^,< \n\r]+)#i", "\\1<a href=\"aim:goim?screenname=\\2\\3&message=Hello\">\\2\\3</a>", $ret);
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$ret = preg_replace("#([\n ])icq:([^,< \n\r]+)#i", "\\1<a href=\"http://wwp.icq.com/scripts/search.dll?to=\\2\\3\">\\2\\3</a>", $ret);
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$ret = preg_replace("#([\n ])www\.([a-z0-9\-]+)\.([a-z0-9\-.\~]+)((?:/[^,< \n\r]*)?)#i", "\\1<a href=\"http://www.\\2.\\3\\4\" target=\"_blank\">www.\\2.\\3\\4</a>", $ret);
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$ret = preg_replace("#([\n ])([a-z0-9\-_.]+?)@([^,< \n\r]+)#i", "\\1<a href=\"mailto:\\2@\\3\">\\2@\\3</a>", $ret);
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$ret = substr($ret, 1);
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return $ret;
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}
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function convert_smilies($text) {
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global $wp_smiliessearch, $wp_smiliesreplace;
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$output = '';
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if (get_settings('use_smilies')) {
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// HTML loop taken from texturize function, could possible be consolidated
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$textarr = preg_split("/(<.*>)/U", $text, -1, PREG_SPLIT_DELIM_CAPTURE); // capture the tags as well as in between
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$stop = count($textarr);// loop stuff
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for ($i = 0; $i < $stop; $i++) {
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$content = $textarr[$i];
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if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag
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$content = str_replace($wp_smiliessearch, $wp_smiliesreplace, $content);
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}
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$output .= $content;
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}
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} else {
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// return default text.
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$output = $text;
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}
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return $output;
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}
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function is_email($user_email) {
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$chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i";
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if(strstr($user_email, '@') && strstr($user_email, '.')) {
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if (preg_match($chars, $user_email)) {
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return true;
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} else {
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return false;
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}
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} else {
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return false;
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}
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}
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function strip_all_but_one_link($text, $mylink) {
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$match_link = '#(<a.+?href.+?'.'>)(.+?)(</a>)#';
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preg_match_all($match_link, $text, $matches);
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$count = count($matches[0]);
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for ($i=0; $i<$count; $i++) {
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if (!strstr($matches[0][$i], $mylink)) {
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$text = str_replace($matches[0][$i], $matches[2][$i], $text);
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}
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}
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return $text;
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}
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// used by wp-mail to handle charsets in email subjects
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function wp_iso_descrambler($string) {
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/* this may only work with iso-8859-1, I'm afraid */
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if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) {
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return $string;
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} else {
|
|
$subject = str_replace('_', ' ', $matches[2]);
|
|
$subject = preg_replace('#\=([0-9a-f]{2})#ei', "chr(hexdec(strtolower('$1')))", $subject);
|
|
return $subject;
|
|
}
|
|
}
|
|
|
|
|
|
// give it a date, it will give you the same date as GMT
|
|
function get_gmt_from_date($string) {
|
|
// note: this only substracts $time_difference from the given date
|
|
preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
|
|
$string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
|
|
$string_gmt = gmdate('Y-m-d H:i:s', $string_time - get_settings('gmt_offset') * 3600);
|
|
return $string_gmt;
|
|
}
|
|
|
|
// give it a GMT date, it will give you the same date with $time_difference added
|
|
function get_date_from_gmt($string) {
|
|
// note: this only adds $time_difference to the given date
|
|
preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
|
|
$string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
|
|
$string_localtime = gmdate('Y-m-d H:i:s', $string_time + get_settings('gmt_offset')*3600);
|
|
return $string_localtime;
|
|
}
|
|
|
|
// computes an offset in seconds from an iso8601 timezone
|
|
function iso8601_timezone_to_offset($timezone) {
|
|
// $timezone is either 'Z' or '[+|-]hhmm'
|
|
if ($timezone == 'Z') {
|
|
$offset = 0;
|
|
} else {
|
|
$sign = (substr($timezone, 0, 1) == '+') ? 1 : -1;
|
|
$hours = intval(substr($timezone, 1, 2));
|
|
$minutes = intval(substr($timezone, 3, 4)) / 60;
|
|
$offset = $sign * 3600 * ($hours + $minutes);
|
|
}
|
|
return $offset;
|
|
}
|
|
|
|
// converts an iso8601 date to MySQL DateTime format used by post_date[_gmt]
|
|
function iso8601_to_datetime($date_string, $timezone = USER) {
|
|
if ($timezone == GMT) {
|
|
preg_match('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', $date_string, $date_bits);
|
|
if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset
|
|
$offset = iso8601_timezone_to_offset($date_bits[7]);
|
|
} else { // we don't have a timezone, so we assume user local timezone (not server's!)
|
|
$offset = 3600 * get_settings('gmt_offset');
|
|
}
|
|
$timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]);
|
|
$timestamp -= $offset;
|
|
return gmdate('Y-m-d H:i:s', $timestamp);
|
|
} elseif ($timezone == USER) {
|
|
return preg_replace('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', '$1-$2-$3 $4:$5:$6', $date_string);
|
|
}
|
|
}
|
|
|
|
?>
|