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< ? php
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add_filter ( 'sanitize_title' , 'sanitize_title_with_dashes' );
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function wptexturize ( $text ) {
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$output = '' ;
// Capture tags and everything inside them
$textarr = preg_split ( " /(<.*>)/Us " , $text , - 1 , PREG_SPLIT_DELIM_CAPTURE );
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$stop = count ( $textarr ); $next = true ; // loop stuff
for ( $i = 0 ; $i < $stop ; $i ++ ) {
$curl = $textarr [ $i ];
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if ( isset ( $curl { 0 }) && '<' != $curl { 0 } && $next ) { // If it's not a tag
$curl = str_replace ( '---' , '—' , $curl );
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$curl = preg_replace ( '/(\s)--(\s)/' , '$1—$2' , $curl );
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$curl = str_replace ( '--' , '–' , $curl );
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$curl = str_replace ( '...' , '…' , $curl );
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$curl = str_replace ( '``' , '“' , $curl );
// This is a hack, look at this more later. It works pretty well though.
$cockney = array ( " 'tain't " , " 'twere " , " 'twas " , " 'tis " , " 'twill " , " 'til " , " 'bout " , " 'nuff " , " 'round " );
$cockneyreplace = array ( " ’tain’t " , " ’twere " , " ’twas " , " ’tis " , " ’twill " , " ’til " , " ’bout " , " ’nuff " , " ’round " );
$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 );
$curl = preg_replace ( '/(\s|\A|")\'/' , '$1‘' , $curl );
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$curl = preg_replace ( '/(\d+)"/' , '$1″' , $curl );
$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|\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 );
$curl = preg_replace ( " / \ (c \ )/i " , ' ©' , $curl );
$curl = preg_replace ( " / \ (r \ )/i " , ' ®' , $curl );
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$curl = str_replace ( " '' " , '”' , $curl );
$curl = preg_replace ( '/(d+)x(\d+)/' , " $ 1× $ 2 " , $curl );
} elseif ( strstr ( $curl , '<code' ) || strstr ( $curl , '<pre' ) || strstr ( $curl , '<kbd' || strstr ( $curl , '<style' ) || strstr ( $curl , '<script' ))) {
// strstr is fast
$next = false ;
} else {
$next = true ;
}
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$curl = preg_replace ( '/&([^#])(?![a-z12]{1,8};)/' , '&$1' , $curl );
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$output .= $curl ;
}
return $output ;
}
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function clean_pre ( $text ) {
$text = str_replace ( '<br />' , '' , $text );
return $text ;
}
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function wpautop ( $pee , $br = 1 ) {
$pee = $pee . " \n " ; // just to make things a little easier, pad the end
$pee = preg_replace ( '|<br />\s*<br />|' , " \n \n " , $pee );
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// Space things out a little
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$pee = preg_replace ( '!(<(?:table|thead|tfoot|caption|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)!' , " \n $ 1 " , $pee );
$pee = preg_replace ( '!(</(?:table|thead|tfoot|caption|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
$pee = preg_replace ( '/\n?(.+?)(?:\n\s*\n|\z)/s' , " \t <p> $ 1</p> \n " , $pee ); // make paragraphs, including one at the end
$pee = preg_replace ( '|<p>\s*?</p>|' , '' , $pee ); // under certain strange conditions it could create a P of entirely whitespace
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$pee = preg_replace ( '!<p>\s*(</?(?:table|thead|tfoot|caption|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
$pee = preg_replace ( '|<p><blockquote([^>]*)>|i' , " <blockquote $ 1><p> " , $pee );
$pee = str_replace ( '</blockquote></p>' , '</p></blockquote>' , $pee );
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$pee = preg_replace ( '!<p>\s*(</?(?:table|thead|tfoot|caption|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|math|p|h[1-6])[^>]*>)!' , " $ 1 " , $pee );
$pee = preg_replace ( '!(</?(?:table|thead|tfoot|caption|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|tfoot|caption|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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function seems_utf8 ( $Str ) { # by bmorel at ssi dot fr
for ( $i = 0 ; $i < strlen ( $Str ); $i ++ ) {
if ( ord ( $Str [ $i ]) < 0x80 ) continue ; # 0bbbbbbb
elseif (( ord ( $Str [ $i ]) & 0xE0 ) == 0xC0 ) $n = 1 ; # 110bbbbb
elseif (( ord ( $Str [ $i ]) & 0xF0 ) == 0xE0 ) $n = 2 ; # 1110bbbb
elseif (( ord ( $Str [ $i ]) & 0xF8 ) == 0xF0 ) $n = 3 ; # 11110bbb
elseif (( ord ( $Str [ $i ]) & 0xFC ) == 0xF8 ) $n = 4 ; # 111110bb
elseif (( ord ( $Str [ $i ]) & 0xFE ) == 0xFC ) $n = 5 ; # 1111110b
else return false ; # Does not match any model
for ( $j = 0 ; $j < $n ; $j ++ ) { # n bytes matching 10bbbbbb follow ?
if (( ++ $i == strlen ( $Str )) || (( ord ( $Str [ $i ]) & 0xC0 ) != 0x80 ))
return false ;
}
}
return true ;
}
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function utf8_uri_encode ( $utf8_string ) {
$unicode = '' ;
$values = array ();
$num_octets = 1 ;
for ( $i = 0 ; $i < strlen ( $utf8_string ); $i ++ ) {
$value = ord ( $utf8_string [ $i ] );
if ( $value < 128 ) {
$unicode .= chr ( $value );
} else {
if ( count ( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3 ;
$values [] = $value ;
if ( count ( $values ) == $num_octets ) {
if ( $num_octets == 3 ) {
$unicode .= '%' . dechex ( $values [ 0 ]) . '%' . dechex ( $values [ 1 ]) . '%' . dechex ( $values [ 2 ]);
} else {
$unicode .= '%' . dechex ( $values [ 0 ]) . '%' . dechex ( $values [ 1 ]);
}
$values = array ();
$num_octets = 1 ;
}
}
}
return $unicode ;
}
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function remove_accents ( $string ) {
if ( seems_utf8 ( $string )) {
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$chars = array ( chr ( 195 ) . chr ( 128 ) => 'A' , chr ( 195 ) . chr ( 129 ) => 'A' ,
chr ( 195 ) . chr ( 130 ) => 'A' , chr ( 195 ) . chr ( 131 ) => 'A' ,
chr ( 195 ) . chr ( 132 ) => 'A' , chr ( 195 ) . chr ( 133 ) => 'A' ,
chr ( 195 ) . chr ( 135 ) => 'C' , chr ( 195 ) . chr ( 136 ) => 'E' ,
chr ( 195 ) . chr ( 137 ) => 'E' , chr ( 195 ) . chr ( 138 ) => 'E' ,
chr ( 195 ) . chr ( 139 ) => 'E' , chr ( 195 ) . chr ( 140 ) => 'I' ,
chr ( 195 ) . chr ( 141 ) => 'I' , chr ( 195 ) . chr ( 142 ) => 'I' ,
chr ( 195 ) . chr ( 143 ) => 'I' , chr ( 195 ) . chr ( 145 ) => 'N' ,
chr ( 195 ) . chr ( 146 ) => 'O' , chr ( 195 ) . chr ( 147 ) => 'O' ,
chr ( 195 ) . chr ( 148 ) => 'O' , chr ( 195 ) . chr ( 149 ) => 'O' ,
chr ( 195 ) . chr ( 150 ) => 'O' , chr ( 195 ) . chr ( 153 ) => 'U' ,
chr ( 195 ) . chr ( 154 ) => 'U' , chr ( 195 ) . chr ( 155 ) => 'U' ,
chr ( 195 ) . chr ( 156 ) => 'U' , chr ( 195 ) . chr ( 157 ) => 'Y' ,
chr ( 195 ) . chr ( 160 ) => 'a' , chr ( 195 ) . chr ( 161 ) => 'a' ,
chr ( 195 ) . chr ( 162 ) => 'a' , chr ( 195 ) . chr ( 163 ) => 'a' ,
chr ( 195 ) . chr ( 164 ) => 'a' , chr ( 195 ) . chr ( 165 ) => 'a' ,
chr ( 195 ) . chr ( 167 ) => 'c' , chr ( 195 ) . chr ( 168 ) => 'e' ,
chr ( 195 ) . chr ( 169 ) => 'e' , chr ( 195 ) . chr ( 170 ) => 'e' ,
chr ( 195 ) . chr ( 171 ) => 'e' , chr ( 195 ) . chr ( 172 ) => 'i' ,
chr ( 195 ) . chr ( 173 ) => 'i' , chr ( 195 ) . chr ( 174 ) => 'i' ,
chr ( 195 ) . chr ( 175 ) => 'i' , chr ( 195 ) . chr ( 177 ) => 'n' ,
chr ( 195 ) . chr ( 178 ) => 'o' , chr ( 195 ) . chr ( 179 ) => 'o' ,
chr ( 195 ) . chr ( 180 ) => 'o' , chr ( 195 ) . chr ( 181 ) => 'o' ,
chr ( 195 ) . chr ( 182 ) => 'o' , chr ( 195 ) . chr ( 182 ) => 'o' ,
chr ( 195 ) . chr ( 185 ) => 'u' , chr ( 195 ) . chr ( 186 ) => 'u' ,
chr ( 195 ) . chr ( 187 ) => 'u' , chr ( 195 ) . chr ( 188 ) => 'u' ,
chr ( 195 ) . chr ( 189 ) => 'y' , chr ( 195 ) . chr ( 191 ) => 'y' ,
chr ( 197 ) . chr ( 146 ) => 'OE' , chr ( 197 ) . chr ( 147 ) => 'oe' ,
chr ( 197 ) . chr ( 160 ) => 'S' , chr ( 197 ) . chr ( 161 ) => 's' ,
chr ( 197 ) . chr ( 189 ) => 'Z' , chr ( 197 ) . chr ( 190 ) => 'z' ,
chr ( 226 ) . chr ( 130 ) . chr ( 172 ) => 'E' );
$string = strtr ( $string , $chars );
} else {
// Assume ISO-8859-1 if not UTF-8
$chars [ 'in' ] = chr ( 128 ) . chr ( 131 ) . chr ( 138 ) . chr ( 142 ) . chr ( 154 ) . chr ( 158 )
. chr ( 159 ) . chr ( 162 ) . chr ( 165 ) . chr ( 181 ) . chr ( 192 ) . chr ( 193 ) . chr ( 194 )
. chr ( 195 ) . chr ( 196 ) . chr ( 197 ) . chr ( 199 ) . chr ( 200 ) . chr ( 201 ) . chr ( 202 )
. chr ( 203 ) . chr ( 204 ) . chr ( 205 ) . chr ( 206 ) . chr ( 207 ) . chr ( 209 ) . chr ( 210 )
. chr ( 211 ) . chr ( 212 ) . chr ( 213 ) . chr ( 214 ) . chr ( 216 ) . chr ( 217 ) . chr ( 218 )
. chr ( 219 ) . chr ( 220 ) . chr ( 221 ) . chr ( 224 ) . chr ( 225 ) . chr ( 226 ) . chr ( 227 )
. chr ( 228 ) . chr ( 229 ) . chr ( 231 ) . chr ( 232 ) . chr ( 233 ) . chr ( 234 ) . chr ( 235 )
. chr ( 236 ) . chr ( 237 ) . chr ( 238 ) . chr ( 239 ) . chr ( 241 ) . chr ( 242 ) . chr ( 243 )
. chr ( 244 ) . chr ( 245 ) . chr ( 246 ) . chr ( 248 ) . chr ( 249 ) . chr ( 250 ) . chr ( 251 )
. chr ( 252 ) . chr ( 253 ) . chr ( 255 );
$chars [ 'out' ] = " EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy " ;
$string = strtr ( $string , $chars [ 'in' ], $chars [ 'out' ]);
$double_chars [ 'in' ] = array ( chr ( 140 ), chr ( 156 ), chr ( 198 ), chr ( 208 ), chr ( 222 ), chr ( 223 ), chr ( 230 ), chr ( 240 ), chr ( 254 ));
$double_chars [ 'out' ] = array ( 'OE' , 'oe' , 'AE' , 'DH' , 'TH' , 'ss' , 'ae' , 'dh' , 'th' );
$string = str_replace ( $double_chars [ 'in' ], $double_chars [ 'out' ], $string );
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}
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return $string ;
}
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function sanitize_title ( $title , $fallback_title = '' ) {
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$title = strip_tags ( $title );
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$title = apply_filters ( 'sanitize_title' , $title );
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if ( empty ( $title )) {
$title = $fallback_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 = strip_tags ( $title );
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$title = remove_accents ( $title );
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if ( seems_utf8 ( $title )) {
if ( function_exists ( 'mb_strtolower' )) {
$title = mb_strtolower ( $title , 'UTF-8' );
}
$title = utf8_uri_encode ( $title );
}
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$title = strtolower ( $title );
$title = preg_replace ( '/&.+?;/' , '' , $title ); // kill entities
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$title = preg_replace ( '/[^%a-z0-9 _-]/' , '' , $title );
$title = preg_replace ( '/\s+/' , '-' , $title );
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$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' ) {
global $wp_htmltranswinuni ;
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// Remove metadata tags
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$content = preg_replace ( '/<title>(.+?)<\/title>/' , '' , $content );
$content = preg_replace ( '/<category>(.+?)<\/category>/' , '' , $content );
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// Converts lone & characters into & (a.k.a. &)
$content = preg_replace ( '/&([^#])(?![a-z]{1,8};)/i' , '&$1' , $content );
// Fix Word pasting
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$content = strtr ( $content , $wp_htmltranswinuni );
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// Just a little XHTML help
$content = str_replace ( '<br>' , '<br />' , $content );
$content = str_replace ( '<hr>' , '<hr />' , $content );
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return $content ;
}
/*
balanceTags
Balances Tags of string using a modified stack .
@ param text Text to be balanced
@ return Returns balanced text
@ author Leonard Lin ( leonard @ acm . org )
@ version v1 . 1
@ date November 4 , 2001
@ license GPL v2 . 0
@ notes
@ changelog
1.2 *** TODO *** Make better - change loop condition to $text
1.1 Fixed handling of append / stack pop order of end text
Added Cleaning Hooks
1.0 First Version
*/
function balanceTags ( $text , $is_comment = 0 ) {
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if ( get_settings ( 'use_balanceTags' ) == 0 ) {
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return $text ;
}
$tagstack = array (); $stacksize = 0 ; $tagqueue = '' ; $newtext = '' ;
# WP bug fix for comments - in case you REALLY meant to type '< !--'
$text = str_replace ( '< !--' , '< !--' , $text );
# WP bug fix for LOVE <3 (and other situations with '<' before a number)
$text = preg_replace ( '#<([0-9]{1})#' , '<$1' , $text );
while ( preg_match ( " /<( \ /? \ w*) \ s*([^>]*)>/ " , $text , $regex )) {
$newtext = $newtext . $tagqueue ;
$i = strpos ( $text , $regex [ 0 ]);
$l = strlen ( $tagqueue ) + strlen ( $regex [ 0 ]);
// clear the shifter
$tagqueue = '' ;
// Pop or Push
if ( $regex [ 1 ][ 0 ] == " / " ) { // End Tag
$tag = strtolower ( substr ( $regex [ 1 ], 1 ));
// if too many closing tags
if ( $stacksize <= 0 ) {
$tag = '' ;
//or close to be safe $tag = '/' . $tag;
}
// if stacktop value = tag close value then pop
else if ( $tagstack [ $stacksize - 1 ] == $tag ) { // found closing tag
$tag = '</' . $tag . '>' ; // Close Tag
// Pop
array_pop ( $tagstack );
$stacksize -- ;
} else { // closing tag not at top, search for it
for ( $j = $stacksize - 1 ; $j >= 0 ; $j -- ) {
if ( $tagstack [ $j ] == $tag ) {
// add tag to tagqueue
for ( $k = $stacksize - 1 ; $k >= $j ; $k -- ){
$tagqueue .= '</' . array_pop ( $tagstack ) . '>' ;
$stacksize -- ;
}
break ;
}
}
$tag = '' ;
}
} else { // Begin Tag
$tag = strtolower ( $regex [ 1 ]);
// Tag Cleaning
// Push if not img or br or hr
if ( $tag != 'br' && $tag != 'img' && $tag != 'hr' ) {
$stacksize = array_push ( $tagstack , $tag );
}
// Attributes
// $attributes = $regex[2];
$attributes = $regex [ 2 ];
if ( $attributes ) {
$attributes = ' ' . $attributes ;
}
$tag = '<' . $tag . $attributes . '>' ;
}
$newtext .= substr ( $text , 0 , $i ) . $tag ;
$text = substr ( $text , $i + $l );
}
// Clear Tag Queue
$newtext = $newtext . $tagqueue ;
// Add Remaining text
$newtext .= $text ;
// Empty Stack
while ( $x = array_pop ( $tagstack )) {
$newtext = $newtext . '</' . $x . '>' ; // Add remaining tags to close
}
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// WP fix for the bug with HTML comments
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$newtext = str_replace ( " < !-- " , " <!-- " , $newtext );
$newtext = str_replace ( " < !-- " , " < !-- " , $newtext );
return $newtext ;
}
function format_to_edit ( $content ) {
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$content = apply_filters ( 'format_to_edit' , $content );
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$content = htmlspecialchars ( $content );
return $content ;
}
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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 ;
}
function zeroise ( $number , $threshold ) { // function to add leading zeros when necessary
$l = strlen ( $number );
if ( $l < $threshold )
for ( $i = 0 ; $i < ( $threshold - $l ); $i = $i + 1 ) { $number = '0' . $number ; }
return $number ;
}
function backslashit ( $string ) {
$string = preg_replace ( '/([a-z])/i' , '\\\\\1' , $string );
return $string ;
}
function trailingslashit ( $string ) {
if ( '/' != substr ( $string , - 1 )) {
$string .= '/' ;
}
return $string ;
}
function addslashes_gpc ( $gpc ) {
if ( ! get_magic_quotes_gpc ()) {
$gpc = addslashes ( $gpc );
}
return $gpc ;
}
function antispambot ( $emailaddy , $mailto = 0 ) {
$emailNOSPAMaddy = '' ;
srand (( float ) microtime () * 1000000 );
for ( $i = 0 ; $i < strlen ( $emailaddy ); $i = $i + 1 ) {
$j = floor ( rand ( 0 , 1 + $mailto ));
if ( $j == 0 ) {
$emailNOSPAMaddy .= '&#' . ord ( substr ( $emailaddy , $i , 1 )) . ';' ;
} elseif ( $j == 1 ) {
$emailNOSPAMaddy .= substr ( $emailaddy , $i , 1 );
} elseif ( $j == 2 ) {
$emailNOSPAMaddy .= '%' . zeroise ( dechex ( ord ( substr ( $emailaddy , $i , 1 ))), 2 );
}
}
$emailNOSPAMaddy = str_replace ( '@' , '@' , $emailNOSPAMaddy );
return $emailNOSPAMaddy ;
}
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function make_clickable ( $ret ) { // original function: phpBB
$ret = ' ' . $ret . ' ' ;
$ret = preg_replace ( " #( \ s)http://([^ \ s<> { }()]+[^ \ s.,<> { }()])#i " , " $ 1<a href='http:// $ 2'>http:// $ 2</a> " , $ret );
$ret = preg_replace ( " #( \ s)www \ .([a-z0-9 \ -]+) \ .([a-z0-9 \ -. \ ~]+)((?:/[^ <> { }() \n \r ]*[^., <> { }() \n \r ]?)?)#i " , " $ 1<a href='http://www. $ 2. $ 3 $ 4'>www. $ 2. $ 3 $ 4</a> " , $ret );
$ret = preg_replace ( " #( \ s)([a-z0-9 \ -_.]+)@([^,< \n \r ]+)#i " , " $ 1<a href='mailto: $ 2@ $ 3 \" > $ 2@ $ 3</a> " , $ret );
$ret = trim ( $ret );
return $ret ;
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}
function convert_smilies ( $text ) {
global $wp_smiliessearch , $wp_smiliesreplace ;
$output = '' ;
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if ( get_settings ( 'use_smilies' )) {
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// HTML loop taken from texturize function, could possible be consolidated
$textarr = preg_split ( " /(<.*>)/U " , $text , - 1 , PREG_SPLIT_DELIM_CAPTURE ); // capture the tags as well as in between
$stop = count ( $textarr ); // loop stuff
for ( $i = 0 ; $i < $stop ; $i ++ ) {
$content = $textarr [ $i ];
if (( strlen ( $content ) > 0 ) && ( '<' != $content { 0 })) { // If it's not a tag
$content = str_replace ( $wp_smiliessearch , $wp_smiliesreplace , $content );
}
$output .= $content ;
}
} else {
// return default text.
$output = $text ;
}
return $output ;
}
function is_email ( $user_email ) {
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$chars = " /^([a-z0-9+_]| \\ -| \\ .)+@(([a-z0-9_]| \\ -)+ \\ .)+[a-z] { 2,6} \$ /i " ;
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if ( strstr ( $user_email , '@' ) && strstr ( $user_email , '.' )) {
if ( preg_match ( $chars , $user_email )) {
return true ;
} else {
return false ;
}
} else {
return false ;
}
}
function strip_all_but_one_link ( $text , $mylink ) {
$match_link = '#(<a.+?href.+?' . '>)(.+?)(</a>)#' ;
preg_match_all ( $match_link , $text , $matches );
$count = count ( $matches [ 0 ]);
for ( $i = 0 ; $i < $count ; $i ++ ) {
if ( ! strstr ( $matches [ 0 ][ $i ], $mylink )) {
$text = str_replace ( $matches [ 0 ][ $i ], $matches [ 2 ][ $i ], $text );
}
}
return $text ;
}
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// used by wp-mail to handle charsets in email subjects
function wp_iso_descrambler ( $string ) {
/* this may only work with iso-8859-1, I'm afraid */
if ( ! preg_match ( '#\=\?(.+)\?Q\?(.+)\?\=#i' , $string , $matches )) {
return $string ;
} else {
$subject = str_replace ( '_' , ' ' , $matches [ 2 ]);
$subject = preg_replace ( '#\=([0-9a-f]{2})#ei' , " chr(hexdec(strtolower(' $ 1'))) " , $subject );
return $subject ;
}
}
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// give it a date, it will give you the same date as GMT
function get_gmt_from_date ( $string ) {
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// 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 ], $matches [ 1 ]);
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$string_gmt = gmdate ( 'Y-m-d H:i:s' , $string_time - get_settings ( 'gmt_offset' ) * 3600 );
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return $string_gmt ;
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}
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// give it a GMT date, it will give you the same date with $time_difference added
function get_date_from_gmt ( $string ) {
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// 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 ], $matches [ 1 ]);
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$string_localtime = gmdate ( 'Y-m-d H:i:s' , $string_time + get_settings ( 'gmt_offset' ) * 3600 );
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return $string_localtime ;
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}
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// 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 );
}
}
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function popuplinks ( $text ) {
// Comment text in popup windows should be filtered through this.
// Right now it's a moderately dumb function, ideally it would detect whether
// a target or rel attribute was already there and adjust its actions accordingly.
$text = preg_replace ( '/<a (.+?)>/i' , " <a $ 1 target='_blank' rel='external'> " , $text );
return $text ;
}
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?>
