/msw/dev/wp-includes/formatting.php
PHP | 2810 lines | 1678 code | 225 blank | 907 comment | 231 complexity | d4bda5cc7b56fbdcedb5cb4b7c774e2e MD5 | raw file
Large files files are truncated, but you can click here to view the full file
- <?php
- /**
- * Main WordPress Formatting API.
- *
- * Handles many functions for formatting output.
- *
- * @package WordPress
- **/
- /**
- * Replaces common plain text characters into formatted entities
- *
- * As an example,
- * <code>
- * 'cause today's effort makes it worth tomorrow's "holiday"...
- * </code>
- * Becomes:
- * <code>
- * ’cause today’s effort makes it worth tomorrow’s “holiday”…
- * </code>
- * Code within certain html blocks are skipped.
- *
- * @since 0.71
- * @uses $wp_cockneyreplace Array of formatted entities for certain common phrases
- *
- * @param string $text The text to be formatted
- * @return string The string replaced with html entities
- */
- function wptexturize($text) {
- global $wp_cockneyreplace;
- static $static_setup = false, $opening_quote, $closing_quote, $default_no_texturize_tags, $default_no_texturize_shortcodes, $static_characters, $static_replacements, $dynamic_characters, $dynamic_replacements;
- $output = '';
- $curl = '';
- $textarr = preg_split('/(<.*>|\[.*\])/Us', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
- $stop = count($textarr);
- // No need to set up these variables more than once
- if (!$static_setup) {
- /* translators: opening curly quote */
- $opening_quote = _x('“', 'opening curly quote');
- /* translators: closing curly quote */
- $closing_quote = _x('”', 'closing curly quote');
- $default_no_texturize_tags = array('pre', 'code', 'kbd', 'style', 'script', 'tt');
- $default_no_texturize_shortcodes = array('code');
- // if a plugin has provided an autocorrect array, use it
- if ( isset($wp_cockneyreplace) ) {
- $cockney = array_keys($wp_cockneyreplace);
- $cockneyreplace = array_values($wp_cockneyreplace);
- } else {
- $cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round","'cause");
- $cockneyreplace = array("’tain’t","’twere","’twas","’tis","’twill","’til","’bout","’nuff","’round","’cause");
- }
- $static_characters = array_merge(array('---', ' -- ', '--', ' - ', 'xn–', '...', '``', '\'\'', ' (tm)'), $cockney);
- $static_replacements = array_merge(array('—', ' — ', '–', ' – ', 'xn--', '…', $opening_quote, $closing_quote, ' ™'), $cockneyreplace);
- $dynamic_characters = array('/\'(\d\d(?:’|\')?s)/', '/\'(\d+)/', '/(\s|\A|[([{<]|")\'/', '/(\d+)"/', '/(\d+)\'/', '/(\S)\'([^\'\s])/', '/(\s|\A|[([{<])"(?!\s)/', '/"(\s|\S|\Z)/', '/\'([\s.]|\Z)/', '/\b(\d+)x(\d+)\b/');
- $dynamic_replacements = array('’$1','’$1', '$1‘', '$1″', '$1′', '$1’$2', '$1' . $opening_quote . '$2', $closing_quote . '$1', '’$1', '$1×$2');
- $static_setup = true;
- }
- // Transform into regexp sub-expression used in _wptexturize_pushpop_element
- // Must do this everytime in case plugins use these filters in a context sensitive manner
- $no_texturize_tags = '(' . implode('|', apply_filters('no_texturize_tags', $default_no_texturize_tags) ) . ')';
- $no_texturize_shortcodes = '(' . implode('|', apply_filters('no_texturize_shortcodes', $default_no_texturize_shortcodes) ) . ')';
- $no_texturize_tags_stack = array();
- $no_texturize_shortcodes_stack = array();
- for ( $i = 0; $i < $stop; $i++ ) {
- $curl = $textarr[$i];
- if ( !empty($curl) && '<' != $curl{0} && '[' != $curl{0}
- && empty($no_texturize_shortcodes_stack) && empty($no_texturize_tags_stack)) {
- // This is not a tag, nor is the texturization disabled
- // static strings
- $curl = str_replace($static_characters, $static_replacements, $curl);
- // regular expressions
- $curl = preg_replace($dynamic_characters, $dynamic_replacements, $curl);
- } elseif (!empty($curl)) {
- /*
- * Only call _wptexturize_pushpop_element if first char is correct
- * tag opening
- */
- if ('<' == $curl{0})
- _wptexturize_pushpop_element($curl, $no_texturize_tags_stack, $no_texturize_tags, '<', '>');
- elseif ('[' == $curl{0})
- _wptexturize_pushpop_element($curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes, '[', ']');
- }
- $curl = preg_replace('/&([^#])(?![a-zA-Z1-4]{1,8};)/', '&$1', $curl);
- $output .= $curl;
- }
- return $output;
- }
- /**
- * Search for disabled element tags. Push element to stack on tag open and pop
- * on tag close. Assumes first character of $text is tag opening.
- *
- * @access private
- * @since 2.9.0
- *
- * @param string $text Text to check. First character is assumed to be $opening
- * @param array $stack Array used as stack of opened tag elements
- * @param string $disabled_elements Tags to match against formatted as regexp sub-expression
- * @param string $opening Tag opening character, assumed to be 1 character long
- * @param string $opening Tag closing character
- * @return object
- */
- function _wptexturize_pushpop_element($text, &$stack, $disabled_elements, $opening = '<', $closing = '>') {
- // Check if it is a closing tag -- otherwise assume opening tag
- if (strncmp($opening . '/', $text, 2)) {
- // Opening? Check $text+1 against disabled elements
- if (preg_match('/^' . $disabled_elements . '\b/', substr($text, 1), $matches)) {
- /*
- * This disables texturize until we find a closing tag of our type
- * (e.g. <pre>) even if there was invalid nesting before that
- *
- * Example: in the case <pre>sadsadasd</code>"baba"</pre>
- * "baba" won't be texturize
- */
- array_push($stack, $matches[1]);
- }
- } else {
- // Closing? Check $text+2 against disabled elements
- $c = preg_quote($closing, '/');
- if (preg_match('/^' . $disabled_elements . $c . '/', substr($text, 2), $matches)) {
- $last = array_pop($stack);
- // Make sure it matches the opening tag
- if ($last != $matches[1])
- array_push($stack, $last);
- }
- }
- }
- /**
- * Accepts matches array from preg_replace_callback in wpautop() or a string.
- *
- * Ensures that the contents of a <<pre>>...<</pre>> HTML block are not
- * converted into paragraphs or line-breaks.
- *
- * @since 1.2.0
- *
- * @param array|string $matches The array or string
- * @return string The pre block without paragraph/line-break conversion.
- */
- function clean_pre($matches) {
- if ( is_array($matches) )
- $text = $matches[1] . $matches[2] . "</pre>";
- else
- $text = $matches;
- $text = str_replace('<br />', '', $text);
- $text = str_replace('<p>', "\n", $text);
- $text = str_replace('</p>', '', $text);
- return $text;
- }
- /**
- * Replaces double line-breaks with paragraph elements.
- *
- * A group of regex replaces used to identify text formatted with newlines and
- * replace double line-breaks with HTML paragraph tags. The remaining
- * line-breaks after conversion become <<br />> tags, unless $br is set to '0'
- * or 'false'.
- *
- * @since 0.71
- *
- * @param string $pee The text which has to be formatted.
- * @param int|bool $br Optional. If set, this will convert all remaining line-breaks after paragraphing. Default true.
- * @return string Text which has been converted into correct paragraph tags.
- */
- function wpautop($pee, $br = 1) {
- if ( trim($pee) === '' )
- return '';
- $pee = $pee . "\n"; // just to make things a little easier, pad the end
- $pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
- // Space things out a little
- $allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|option|form|map|area|blockquote|address|math|style|input|p|h[1-6]|hr|fieldset|legend|section|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary)';
- $pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee);
- $pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee);
- $pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
- if ( strpos($pee, '<object') !== false ) {
- $pee = preg_replace('|\s*<param([^>]*)>\s*|', "<param$1>", $pee); // no pee inside object/embed
- $pee = preg_replace('|\s*</embed>\s*|', '</embed>', $pee);
- }
- $pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates
- // make paragraphs, including one at the end
- $pees = preg_split('/\n\s*\n/', $pee, -1, PREG_SPLIT_NO_EMPTY);
- $pee = '';
- foreach ( $pees as $tinkle )
- $pee .= '<p>' . trim($tinkle, "\n") . "</p>\n";
- $pee = preg_replace('|<p>\s*</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace
- $pee = preg_replace('!<p>([^<]+)</(div|address|form)>!', "<p>$1</p></$2>", $pee);
- $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); // don't pee all over a tag
- $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);
- $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee);
- $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee);
- if ($br) {
- $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', create_function('$matches', 'return str_replace("\n", "<WPPreserveNewline />", $matches[0]);'), $pee);
- $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
- $pee = str_replace('<WPPreserveNewline />', "\n", $pee);
- }
- $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee);
- $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee);
- if (strpos($pee, '<pre') !== false)
- $pee = preg_replace_callback('!(<pre[^>]*>)(.*?)</pre>!is', 'clean_pre', $pee );
- $pee = preg_replace( "|\n</p>$|", '</p>', $pee );
- return $pee;
- }
- /**
- * Don't auto-p wrap shortcodes that stand alone
- *
- * Ensures that shortcodes are not wrapped in <<p>>...<</p>>.
- *
- * @since 2.9.0
- *
- * @param string $pee The content.
- * @return string The filtered content.
- */
- function shortcode_unautop($pee) {
- global $shortcode_tags;
- if ( !empty($shortcode_tags) && is_array($shortcode_tags) ) {
- $tagnames = array_keys($shortcode_tags);
- $tagregexp = join( '|', array_map('preg_quote', $tagnames) );
- $pee = preg_replace('/<p>\\s*?(\\[(' . $tagregexp . ')\\b.*?\\/?\\](?:.+?\\[\\/\\2\\])?)\\s*<\\/p>/s', '$1', $pee);
- }
- return $pee;
- }
- /**
- * Checks to see if a string is utf8 encoded.
- *
- * NOTE: This function checks for 5-Byte sequences, UTF8
- * has Bytes Sequences with a maximum length of 4.
- *
- * @author bmorel at ssi dot fr (modified)
- * @since 1.2.1
- *
- * @param string $str The string to be checked
- * @return bool True if $str fits a UTF-8 model, false otherwise.
- */
- function seems_utf8($str) {
- $length = strlen($str);
- for ($i=0; $i < $length; $i++) {
- $c = ord($str[$i]);
- if ($c < 0x80) $n = 0; # 0bbbbbbb
- elseif (($c & 0xE0) == 0xC0) $n=1; # 110bbbbb
- elseif (($c & 0xF0) == 0xE0) $n=2; # 1110bbbb
- elseif (($c & 0xF8) == 0xF0) $n=3; # 11110bbb
- elseif (($c & 0xFC) == 0xF8) $n=4; # 111110bb
- elseif (($c & 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 == $length) || ((ord($str[$i]) & 0xC0) != 0x80))
- return false;
- }
- }
- return true;
- }
- /**
- * Converts a number of special characters into their HTML entities.
- *
- * Specifically deals with: &, <, >, ", and '.
- *
- * $quote_style can be set to ENT_COMPAT to encode " to
- * ", or ENT_QUOTES to do both. Default is ENT_NOQUOTES where no quotes are encoded.
- *
- * @since 1.2.2
- *
- * @param string $string The text which is to be encoded.
- * @param mixed $quote_style Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
- * @param string $charset Optional. The character encoding of the string. Default is false.
- * @param boolean $double_encode Optional. Whether to encode existing html entities. Default is false.
- * @return string The encoded text with HTML entities.
- */
- function _wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = false, $double_encode = false ) {
- $string = (string) $string;
- if ( 0 === strlen( $string ) ) {
- return '';
- }
- // Don't bother if there are no specialchars - saves some processing
- if ( !preg_match( '/[&<>"\']/', $string ) ) {
- return $string;
- }
- // Account for the previous behaviour of the function when the $quote_style is not an accepted value
- if ( empty( $quote_style ) ) {
- $quote_style = ENT_NOQUOTES;
- } elseif ( !in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) {
- $quote_style = ENT_QUOTES;
- }
- // Store the site charset as a static to avoid multiple calls to wp_load_alloptions()
- if ( !$charset ) {
- static $_charset;
- if ( !isset( $_charset ) ) {
- $alloptions = wp_load_alloptions();
- $_charset = isset( $alloptions['blog_charset'] ) ? $alloptions['blog_charset'] : '';
- }
- $charset = $_charset;
- }
- if ( in_array( $charset, array( 'utf8', 'utf-8', 'UTF8' ) ) ) {
- $charset = 'UTF-8';
- }
- $_quote_style = $quote_style;
- if ( $quote_style === 'double' ) {
- $quote_style = ENT_COMPAT;
- $_quote_style = ENT_COMPAT;
- } elseif ( $quote_style === 'single' ) {
- $quote_style = ENT_NOQUOTES;
- }
- // Handle double encoding ourselves
- if ( !$double_encode ) {
- $string = wp_specialchars_decode( $string, $_quote_style );
- /* Critical */
- // The previous line decodes &phrase; into &phrase; We must guarantee that &phrase; is valid before proceeding.
- $string = wp_kses_normalize_entities($string);
- // Now proceed with custom double-encoding silliness
- $string = preg_replace( '/&(#?x?[0-9a-z]+);/i', '|wp_entity|$1|/wp_entity|', $string );
- }
- $string = @htmlspecialchars( $string, $quote_style, $charset );
- // Handle double encoding ourselves
- if ( !$double_encode ) {
- $string = str_replace( array( '|wp_entity|', '|/wp_entity|' ), array( '&', ';' ), $string );
- }
- // Backwards compatibility
- if ( 'single' === $_quote_style ) {
- $string = str_replace( "'", ''', $string );
- }
- return $string;
- }
- /**
- * Converts a number of HTML entities into their special characters.
- *
- * Specifically deals with: &, <, >, ", and '.
- *
- * $quote_style can be set to ENT_COMPAT to decode " entities,
- * or ENT_QUOTES to do both " and '. Default is ENT_NOQUOTES where no quotes are decoded.
- *
- * @since 2.8
- *
- * @param string $string The text which is to be decoded.
- * @param mixed $quote_style Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old _wp_specialchars() values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
- * @return string The decoded text without HTML entities.
- */
- function wp_specialchars_decode( $string, $quote_style = ENT_NOQUOTES ) {
- $string = (string) $string;
- if ( 0 === strlen( $string ) ) {
- return '';
- }
- // Don't bother if there are no entities - saves a lot of processing
- if ( strpos( $string, '&' ) === false ) {
- return $string;
- }
- // Match the previous behaviour of _wp_specialchars() when the $quote_style is not an accepted value
- if ( empty( $quote_style ) ) {
- $quote_style = ENT_NOQUOTES;
- } elseif ( !in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) {
- $quote_style = ENT_QUOTES;
- }
- // More complete than get_html_translation_table( HTML_SPECIALCHARS )
- $single = array( ''' => '\'', ''' => '\'' );
- $single_preg = array( '/�*39;/' => ''', '/�*27;/i' => ''' );
- $double = array( '"' => '"', '"' => '"', '"' => '"' );
- $double_preg = array( '/�*34;/' => '"', '/�*22;/i' => '"' );
- $others = array( '<' => '<', '<' => '<', '>' => '>', '>' => '>', '&' => '&', '&' => '&', '&' => '&' );
- $others_preg = array( '/�*60;/' => '<', '/�*62;/' => '>', '/�*38;/' => '&', '/�*26;/i' => '&' );
- if ( $quote_style === ENT_QUOTES ) {
- $translation = array_merge( $single, $double, $others );
- $translation_preg = array_merge( $single_preg, $double_preg, $others_preg );
- } elseif ( $quote_style === ENT_COMPAT || $quote_style === 'double' ) {
- $translation = array_merge( $double, $others );
- $translation_preg = array_merge( $double_preg, $others_preg );
- } elseif ( $quote_style === 'single' ) {
- $translation = array_merge( $single, $others );
- $translation_preg = array_merge( $single_preg, $others_preg );
- } elseif ( $quote_style === ENT_NOQUOTES ) {
- $translation = $others;
- $translation_preg = $others_preg;
- }
- // Remove zero padding on numeric entities
- $string = preg_replace( array_keys( $translation_preg ), array_values( $translation_preg ), $string );
- // Replace characters according to translation table
- return strtr( $string, $translation );
- }
- /**
- * Checks for invalid UTF8 in a string.
- *
- * @since 2.8
- *
- * @param string $string The text which is to be checked.
- * @param boolean $strip Optional. Whether to attempt to strip out invalid UTF8. Default is false.
- * @return string The checked text.
- */
- function wp_check_invalid_utf8( $string, $strip = false ) {
- $string = (string) $string;
- if ( 0 === strlen( $string ) ) {
- return '';
- }
- // Store the site charset as a static to avoid multiple calls to get_option()
- static $is_utf8;
- if ( !isset( $is_utf8 ) ) {
- $is_utf8 = in_array( get_option( 'blog_charset' ), array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) );
- }
- if ( !$is_utf8 ) {
- return $string;
- }
- // Check for support for utf8 in the installed PCRE library once and store the result in a static
- static $utf8_pcre;
- if ( !isset( $utf8_pcre ) ) {
- $utf8_pcre = @preg_match( '/^./u', 'a' );
- }
- // We can't demand utf8 in the PCRE installation, so just return the string in those cases
- if ( !$utf8_pcre ) {
- return $string;
- }
- // preg_match fails when it encounters invalid UTF8 in $string
- if ( 1 === @preg_match( '/^./us', $string ) ) {
- return $string;
- }
- // Attempt to strip the bad chars if requested (not recommended)
- if ( $strip && function_exists( 'iconv' ) ) {
- return iconv( 'utf-8', 'utf-8', $string );
- }
- return '';
- }
- /**
- * Encode the Unicode values to be used in the URI.
- *
- * @since 1.5.0
- *
- * @param string $utf8_string
- * @param int $length Max length of the string
- * @return string String with Unicode encoded for URI.
- */
- function utf8_uri_encode( $utf8_string, $length = 0 ) {
- $unicode = '';
- $values = array();
- $num_octets = 1;
- $unicode_length = 0;
- $string_length = strlen( $utf8_string );
- for ($i = 0; $i < $string_length; $i++ ) {
- $value = ord( $utf8_string[ $i ] );
- if ( $value < 128 ) {
- if ( $length && ( $unicode_length >= $length ) )
- break;
- $unicode .= chr($value);
- $unicode_length++;
- } else {
- if ( count( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3;
- $values[] = $value;
- if ( $length && ( $unicode_length + ($num_octets * 3) ) > $length )
- break;
- if ( count( $values ) == $num_octets ) {
- if ($num_octets == 3) {
- $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]) . '%' . dechex($values[2]);
- $unicode_length += 9;
- } else {
- $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]);
- $unicode_length += 6;
- }
- $values = array();
- $num_octets = 1;
- }
- }
- }
- return $unicode;
- }
- /**
- * Converts all accent characters to ASCII characters.
- *
- * If there are no accent characters, then the string given is just returned.
- *
- * @since 1.2.1
- *
- * @param string $string Text that might have accent characters
- * @return string Filtered string with replaced "nice" characters.
- */
- function remove_accents($string) {
- if ( !preg_match('/[\x80-\xff]/', $string) )
- return $string;
- if (seems_utf8($string)) {
- $chars = array(
- // Decompositions for Latin-1 Supplement
- 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(159) => 's', 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',
- // Decompositions for Latin Extended-A
- chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',
- chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',
- chr(196).chr(132) => 'A', chr(196).chr(133) => 'a',
- chr(196).chr(134) => 'C', chr(196).chr(135) => 'c',
- chr(196).chr(136) => 'C', chr(196).chr(137) => 'c',
- chr(196).chr(138) => 'C', chr(196).chr(139) => 'c',
- chr(196).chr(140) => 'C', chr(196).chr(141) => 'c',
- chr(196).chr(142) => 'D', chr(196).chr(143) => 'd',
- chr(196).chr(144) => 'D', chr(196).chr(145) => 'd',
- chr(196).chr(146) => 'E', chr(196).chr(147) => 'e',
- chr(196).chr(148) => 'E', chr(196).chr(149) => 'e',
- chr(196).chr(150) => 'E', chr(196).chr(151) => 'e',
- chr(196).chr(152) => 'E', chr(196).chr(153) => 'e',
- chr(196).chr(154) => 'E', chr(196).chr(155) => 'e',
- chr(196).chr(156) => 'G', chr(196).chr(157) => 'g',
- chr(196).chr(158) => 'G', chr(196).chr(159) => 'g',
- chr(196).chr(160) => 'G', chr(196).chr(161) => 'g',
- chr(196).chr(162) => 'G', chr(196).chr(163) => 'g',
- chr(196).chr(164) => 'H', chr(196).chr(165) => 'h',
- chr(196).chr(166) => 'H', chr(196).chr(167) => 'h',
- chr(196).chr(168) => 'I', chr(196).chr(169) => 'i',
- chr(196).chr(170) => 'I', chr(196).chr(171) => 'i',
- chr(196).chr(172) => 'I', chr(196).chr(173) => 'i',
- chr(196).chr(174) => 'I', chr(196).chr(175) => 'i',
- chr(196).chr(176) => 'I', chr(196).chr(177) => 'i',
- chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij',
- chr(196).chr(180) => 'J', chr(196).chr(181) => 'j',
- chr(196).chr(182) => 'K', chr(196).chr(183) => 'k',
- chr(196).chr(184) => 'k', chr(196).chr(185) => 'L',
- chr(196).chr(186) => 'l', chr(196).chr(187) => 'L',
- chr(196).chr(188) => 'l', chr(196).chr(189) => 'L',
- chr(196).chr(190) => 'l', chr(196).chr(191) => 'L',
- chr(197).chr(128) => 'l', chr(197).chr(129) => 'L',
- chr(197).chr(130) => 'l', chr(197).chr(131) => 'N',
- chr(197).chr(132) => 'n', chr(197).chr(133) => 'N',
- chr(197).chr(134) => 'n', chr(197).chr(135) => 'N',
- chr(197).chr(136) => 'n', chr(197).chr(137) => 'N',
- chr(197).chr(138) => 'n', chr(197).chr(139) => 'N',
- chr(197).chr(140) => 'O', chr(197).chr(141) => 'o',
- chr(197).chr(142) => 'O', chr(197).chr(143) => 'o',
- chr(197).chr(144) => 'O', chr(197).chr(145) => 'o',
- chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe',
- chr(197).chr(148) => 'R',chr(197).chr(149) => 'r',
- chr(197).chr(150) => 'R',chr(197).chr(151) => 'r',
- chr(197).chr(152) => 'R',chr(197).chr(153) => 'r',
- chr(197).chr(154) => 'S',chr(197).chr(155) => 's',
- chr(197).chr(156) => 'S',chr(197).chr(157) => 's',
- chr(197).chr(158) => 'S',chr(197).chr(159) => 's',
- chr(197).chr(160) => 'S', chr(197).chr(161) => 's',
- chr(197).chr(162) => 'T', chr(197).chr(163) => 't',
- chr(197).chr(164) => 'T', chr(197).chr(165) => 't',
- chr(197).chr(166) => 'T', chr(197).chr(167) => 't',
- chr(197).chr(168) => 'U', chr(197).chr(169) => 'u',
- chr(197).chr(170) => 'U', chr(197).chr(171) => 'u',
- chr(197).chr(172) => 'U', chr(197).chr(173) => 'u',
- chr(197).chr(174) => 'U', chr(197).chr(175) => 'u',
- chr(197).chr(176) => 'U', chr(197).chr(177) => 'u',
- chr(197).chr(178) => 'U', chr(197).chr(179) => 'u',
- chr(197).chr(180) => 'W', chr(197).chr(181) => 'w',
- chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y',
- chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z',
- chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',
- chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',
- chr(197).chr(190) => 'z', chr(197).chr(191) => 's',
- // Euro Sign
- chr(226).chr(130).chr(172) => 'E',
- // GBP (Pound) Sign
- chr(194).chr(163) => '');
- $string = strtr($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);
- }
- return $string;
- }
- /**
- * Sanitizes a filename replacing whitespace with dashes
- *
- * Removes special characters that are illegal in filenames on certain
- * operating systems and special characters requiring special escaping
- * to manipulate at the command line. Replaces spaces and consecutive
- * dashes with a single dash. Trim period, dash and underscore from beginning
- * and end of filename.
- *
- * @since 2.1.0
- *
- * @param string $filename The filename to be sanitized
- * @return string The sanitized filename
- */
- function sanitize_file_name( $filename ) {
- $filename_raw = $filename;
- $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", chr(0));
- $special_chars = apply_filters('sanitize_file_name_chars', $special_chars, $filename_raw);
- $filename = str_replace($special_chars, '', $filename);
- $filename = preg_replace('/[\s-]+/', '-', $filename);
- $filename = trim($filename, '.-_');
- // Split the filename into a base and extension[s]
- $parts = explode('.', $filename);
- // Return if only one extension
- if ( count($parts) <= 2 )
- return apply_filters('sanitize_file_name', $filename, $filename_raw);
- // Process multiple extensions
- $filename = array_shift($parts);
- $extension = array_pop($parts);
- $mimes = get_allowed_mime_types();
- // Loop over any intermediate extensions. Munge them with a trailing underscore if they are a 2 - 5 character
- // long alpha string not in the extension whitelist.
- foreach ( (array) $parts as $part) {
- $filename .= '.' . $part;
- if ( preg_match("/^[a-zA-Z]{2,5}\d?$/", $part) ) {
- $allowed = false;
- foreach ( $mimes as $ext_preg => $mime_match ) {
- $ext_preg = '!(^' . $ext_preg . ')$!i';
- if ( preg_match( $ext_preg, $part ) ) {
- $allowed = true;
- break;
- }
- }
- if ( !$allowed )
- $filename .= '_';
- }
- }
- $filename .= '.' . $extension;
- return apply_filters('sanitize_file_name', $filename, $filename_raw);
- }
- /**
- * Sanitize username stripping out unsafe characters.
- *
- * If $strict is true, only alphanumeric characters (as well as _, space, ., -,
- * @) are returned.
- * Removes tags, octets, entities, and if strict is enabled, will remove all
- * non-ASCII characters. After sanitizing, it passes the username, raw username
- * (the username in the parameter), and the strict parameter as parameters for
- * the filter.
- *
- * @since 2.0.0
- * @uses apply_filters() Calls 'sanitize_user' hook on username, raw username,
- * and $strict parameter.
- *
- * @param string $username The username to be sanitized.
- * @param bool $strict If set limits $username to specific characters. Default false.
- * @return string The sanitized username, after passing through filters.
- */
- function sanitize_user( $username, $strict = false ) {
- $raw_username = $username;
- $username = wp_strip_all_tags( $username );
- $username = remove_accents( $username );
- // Kill octets
- $username = preg_replace( '|%([a-fA-F0-9][a-fA-F0-9])|', '', $username );
- $username = preg_replace( '/&.+?;/', '', $username ); // Kill entities
- // If strict, reduce to ASCII for max portability.
- if ( $strict )
- $username = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $username );
- // Consolidate contiguous whitespace
- $username = preg_replace( '|\s+|', ' ', $username );
- return apply_filters( 'sanitize_user', $username, $raw_username, $strict );
- }
- /**
- * Sanitize a string key.
- *
- * Keys are used as internal identifiers. They should be lowercase ASCII. Dashes and underscores are allowed.
- *
- * @since 3.0.0
- *
- * @param string $key String key
- * @return string Sanitized key
- */
- function sanitize_key( $key ) {
- $raw_key = $key;
- $key = wp_strip_all_tags($key);
- // Kill octets
- $key = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '', $key);
- $key = preg_replace('/&.+?;/', '', $key); // Kill entities
- $key = preg_replace('|[^a-z0-9 _.\-@]|i', '', $key);
- // Consolidate contiguous whitespace
- $key = preg_replace('|\s+|', ' ', $key);
- return apply_filters('sanitize_key', $key, $raw_key);
- }
- /**
- * Sanitizes title or use fallback title.
- *
- * Specifically, HTML and PHP tags are stripped. Further actions can be added
- * via the plugin API. If $title is empty and $fallback_title is set, the latter
- * will be used.
- *
- * @since 1.0.0
- *
- * @param string $title The string to be sanitized.
- * @param string $fallback_title Optional. A title to use if $title is empty.
- * @return string The sanitized string.
- */
- function sanitize_title($title, $fallback_title = '') {
- $raw_title = $title;
- $title = strip_tags($title);
- $title = apply_filters('sanitize_title', $title, $raw_title);
- if ( '' === $title || false === $title )
- $title = $fallback_title;
- return $title;
- }
- /**
- * Sanitizes title, replacing whitespace with dashes.
- *
- * Limits the output to alphanumeric characters, underscore (_) and dash (-).
- * Whitespace becomes a dash.
- *
- * @since 1.2.0
- *
- * @param string $title The title to be sanitized.
- * @return string The sanitized title.
- */
- function sanitize_title_with_dashes($title) {
- $title = strip_tags($title);
- // Preserve escaped octets.
- $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
- // Remove percent signs that are not part of an octet.
- $title = str_replace('%', '', $title);
- // Restore octets.
- $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);
- $title = remove_accents($title);
- if (seems_utf8($title)) {
- if (function_exists('mb_strtolower')) {
- $title = mb_strtolower($title, 'UTF-8');
- }
- $title = utf8_uri_encode($title, 200);
- }
- $title = strtolower($title);
- $title = preg_replace('/&.+?;/', '', $title); // kill entities
- $title = str_replace('.', '-', $title);
- $title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
- $title = preg_replace('/\s+/', '-', $title);
- $title = preg_replace('|-+|', '-', $title);
- $title = trim($title, '-');
- return $title;
- }
- /**
- * Ensures a string is a valid SQL order by clause.
- *
- * Accepts one or more columns, with or without ASC/DESC, and also accepts
- * RAND().
- *
- * @since 2.5.1
- *
- * @param string $orderby Order by string to be checked.
- * @return string|false Returns the order by clause if it is a match, false otherwise.
- */
- function sanitize_sql_orderby( $orderby ){
- preg_match('/^\s*([a-z0-9_]+(\s+(ASC|DESC))?(\s*,\s*|\s*$))+|^\s*RAND\(\s*\)\s*$/i', $orderby, $obmatches);
- if ( !$obmatches )
- return false;
- return $orderby;
- }
- /**
- * Santizes a html classname to ensure it only contains valid characters
- *
- * Strips the string down to A-Z,a-z,0-9,'-' if this results in an empty
- * string then it will return the alternative value supplied.
- *
- * @todo Expand to support the full range of CDATA that a class attribute can contain.
- *
- * @since 2.8.0
- *
- * @param string $class The classname to be sanitized
- * @param string $fallback Optional. The value to return if the sanitization end's up as an empty string.
- * Defaults to an empty string.
- * @return string The sanitized value
- */
- function sanitize_html_class( $class, $fallback = '' ) {
- //Strip out any % encoded octets
- $sanitized = preg_replace('|%[a-fA-F0-9][a-fA-F0-9]|', '', $class);
- //Limit to A-Z,a-z,0-9,'-'
- $sanitized = preg_replace('/[^A-Za-z0-9-]/', '', $sanitized);
- if ( '' == $sanitized )
- $sanitized = $fallback;
- return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback );
- }
- /**
- * Converts a number of characters from a string.
- *
- * Metadata tags <<title>> and <<category>> are removed, <<br>> and <<hr>> are
- * converted into correct XHTML and Unicode characters are converted to the
- * valid range.
- *
- * @since 0.71
- *
- * @param string $content String of characters to be converted.
- * @param string $deprecated Not used.
- * @return string Converted string.
- */
- function convert_chars($content, $deprecated = '') {
- if ( !empty( $deprecated ) )
- _deprecated_argument( __FUNCTION__, '0.71' );
- // Translation of invalid Unicode references range to valid range
- $wp_htmltranswinuni = array(
- '€' => '€', // the Euro sign
- '' => '',
- '‚' => '‚', // these are Windows CP1252 specific characters
- 'ƒ' => 'ƒ', // they would look weird on non-Windows browsers
- '„' => '„',
- '…' => '…',
- '†' => '†',
- '‡' => '‡',
- 'ˆ' => 'ˆ',
- '‰' => '‰',
- 'Š' => 'Š',
- '‹' => '‹',
- 'Œ' => 'Œ',
- '' => '',
- 'Ž' => 'ž',
- '' => '',
- '' => '',
- '‘' => '‘',
- '’' => '’',
- '“' => '“',
- '”' => '”',
- '•' => '•',
- '–' => '–',
- '—' => '—',
- '˜' => '˜',
- '™' => '™',
- 'š' => 'š',
- '›' => '›',
- 'œ' => 'œ',
- '' => '',
- 'ž' => '',
- 'Ÿ' => 'Ÿ'
- );
- // Remove metadata tags
- $content = preg_replace('/<title>(.+?)<\/title>/','',$content);
- $content = preg_replace('/<category>(.+?)<\/category>/','',$content);
- // Converts lone & characters into & (a.k.a. &)
- $content = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/i', '&$1', $content);
- // Fix Word pasting
- $content = strtr($content, $wp_htmltranswinuni);
- // Just a little XHTML help
- $content = str_replace('<br>', '<br />', $content);
- $content = str_replace('<hr>', '<hr />', $content);
- return $content;
- }
- /**
- * Will only balance the tags if forced to and the option is set to balance tags.
- *
- * The option 'use_balanceTags' is used for whether the tags will be balanced.
- * Both the $force parameter and 'use_balanceTags' option will have to be true
- * before the tags will be balanced.
- *
- * @since 0.71
- *
- * @param string $text Text to be balanced
- * @param bool $force Forces balancing, ignoring the value of the option. Default false.
- * @return string Balanced text
- */
- function balanceTags( $text, $force = false ) {
- if ( !$force && get_option('use_balanceTags') == 0 )
- return $text;
- return force_balance_tags( $text );
- }
- /**
- * Balances tags of string using a modified stack.
- *
- * @since 2.0.4
- *
- * @author Leonard Lin <leonard@acm.org>
- * @license GPL v2.0
- * @copyright November 4, 2001
- * @version 1.1
- * @todo Make better - change loop condition to $text in 1.2
- * @internal Modified by Scott Reilly (coffee2code) 02 Aug 2004
- * 1.1 Fixed handling of append/stack pop order of end text
- * Added Cleaning Hooks
- * 1.0 First Version
- *
- * @param string $text Text to be balanced.
- * @return string Balanced text.
- */
- function force_balance_tags( $text ) {
- $tagstack = array();
- $stacksize = 0;
- $tagqueue = '';
- $newtext = '';
- $single_tags = array('br', 'hr', 'img', 'input'); // Known single-entity/self-closing tags
- $nestable_tags = array('blockquote', 'div', 'span'); // Tags that can be immediately nested within themselves
- // 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 .= $tagqueue;
- $i = strpos($text, $regex[0]);
- $l = strlen($regex[0]);
- // clear the shifter
- $tagqueue = '';
- // Pop or Push
- if ( isset($regex[1][0]) && '/' == $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
- // If self-closing or '', don't do anything.
- if ( substr($regex[2],-1) == '/' || $tag == '' ) {
- // do nothing
- }
- // ElseIf it's a known single-entity tag but it doesn't close itself, do so
- elseif ( in_array($tag, $single_tags) ) {
- $regex[2] .= '/';
- } else { // Push the tag onto the stack
- // If the top of the stack is the same as the tag we want to push, close previous tag
- if ( $stacksize > 0 && !in_array($tag, $nestable_tags) && $tagstack[$stacksize - 1] == $tag ) {
- $tagqueue = '</' . array_pop ($tagstack) . '>';
- $stacksize--;
- }
- $stacksize = array_push ($tagstack, $tag);
- }
- // Attributes
- $attributes = $regex[2];
- if( !empty($attributes) )
- $attributes = ' '.$attributes;
- $tag = '<' . $tag . $attributes . '>';
- //If already queuing a close tag, then put this tag on, too
- if ( !empty($tagqueue) ) {
- $tagqueue .= $tag;
- $tag = '';
- }
- }
- $newtext .= substr($text, 0, $i) . $tag;
- $text = substr($text, $i + $l);
- }
- // Clear Tag Queue
- $newtext .= $tagqueue;
- // Add Remaining text
- $newtext .= $text;
- // Empty Stack
- while( $x = array_pop($tagstack) )
- $newtext .= '</' . $x . '>'; // Add remaining tags to close
- // WP fix for the bug with HTML comments
- $newtext = str_replace("< !--","<!--",$newtext);
- $newtext = str_replace("< !--","< !--",$newtext);
- return $newtext;
- }
- /**
- * Acts on text which is about to be edited.
- *
- * Unless $richedit is set, it is simply a holder for the 'format_to_edit'
- * filter. If $richedit is set true htmlspecialchars() will be run on the
- * content, converting special characters to HTMl entities.
- *
- * @since 0.71
- *
- * @param string $content The text about to be edited.
- * @param bool $richedit Whether the $content should pass through htmlspecialchars(). Default false.
- * @return string The text after the filter (and possibly htmlspecialchars()) has been run.
- */
- function format_to_edit($content, $richedit = false) {
- $content = apply_filters('format_to_edit', $content);
- if (! $richedit )
- $content = htmlspecialchars($content);
- return $content;
- }
- /**
- * Holder for the 'format_to_post' filter.
- *
- * @since 0.71
- *
- * @param string $content The text to pass through the filter.
- * @return string Text returned from the 'format_to_post' filter.
- */
- function format_to_post($content) {
- $content = apply_filters('format_to_post', $content);
- return $content;
- }
- /**
- * Add leading zeros when necessary.
- *
- * If you set the threshold to '4' and the number is '10', then you will get
- * back '0010'. If you set the number to '4' and the number is '5000', then you
- * will get back '5000'.
- *
- * Uses sprintf to append the amount of zeros based on the $threshold parameter
- * and the size of the number. If the number is large enough, then no zeros will
- * be appended.
- *
- * @since 0.71
- *
- * @param mixed $number Number to append zeros to if not greater than threshold.
- * @param int $threshold Digit places number needs to be to not have zeros added.
- * @return string Adds leading zeros to number if needed.
- */
- function zeroise($number, $threshold) {
- return sprintf('%0'.$threshold.'s', $number);
- }
- /**
- * Adds backslashes before letters and before a number at the start of a string.
- *
- * @since 0.71
- *
- * @param string $string Value to which backslashes will be added.
- * @return string String with backslashes inserted.
- */
- function backslashit($string) {
- $string = preg_replace('/^([0-9])/', '\\\\\\\\\1', $string);
- $string = preg_replace('/([a-z])/i', '\\\\\1', $string);
- return $string;
- }
- /**
- * Appends a trailing slash.
- *
- * Will remove trailing slash if it exists already before adding a trailing
- * slash. This prevents double slashing a string or path.
- *
- * The primary use of this is for paths and thus should be used for paths. It is
- * not restricted to paths and offers no specific path support.
- *
- * @since 1.2.0
- * @uses untrailingslashit() Unslashes string if it was slashed already.
- *
- * @param string $string What to add the trailing slash to.
- * @return string String with trailing slash added.
- */
- function trailingslashit($string) {
- return untrailingslashit($string) . '/';
- }
- /**
- * Removes trailing slash if it exists.
- *
- * The primary use of this is for paths and thus should be used for paths. It is
- * not restricted to paths and offers no specific path support.
- *
- * @since 2.2.0
- *
- * @param string $string What to remove the trailing slash from.
- * @return string String without the trailing slash.
- */
- function untrailingslashit($string) {
- return rtrim($string, '/');
- }
- /**
- * Adds slashes to escape strings.
- *
- * Slashes will first be removed if magic_quotes_gpc is set, see {@link
- * http://www.php.net/magic_quotes} for more details.
- *
- * @since 0.71
- *
- * @param string $gpc The string returned from HTTP request data.
- * @return string Returns a string escaped with slashes.
- */
- function addslashes_gpc($gpc) {
- if ( get_magic_quotes_gpc() )
- $gpc = stripslashes($gpc);
- return esc_sql($gpc);
- }
- /**
- * Navigates through an array and removes slashes from the values.
- *
- * If an array is passed, the array_map() function causes a callback to pass the
- * value back to the function. The slashes from this value will removed.
- *
- * @since 2.0.0
- *
- * @param array|string $value The array or string to be striped.
- * @return array|string Stripped array (or string in the callback).
- */
- function stripslashes_deep($value) {
- $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value);
- return $value;
- }
- /**
- * Navigates through an array and encodes the values to be used in a URL.
- *
- * Uses a callback to pass the value of the array back to the function as a
- * string.
- *
- * @since 2.2.0
- *
- * @param array|string $value The array or string to be encoded.
- * @return array|string $value The encoded array (or string from the callback).
- */
- function urlencode_deep($value) {
- $value = is_array($value) ? array_map('urlencode_deep', $value) : urlencode($value);
- return $value;
- }
- /**
- * Converts email addresses characters to HTML entities to block spam bots.
- *
- * @since 0.71
- *
- * @param string $emailaddy Email address.
- * @param int $mailto Optional. Range from 0 to 1. Used for encoding.
- * @return string Converted email address.
- */
- function antispambot($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;
- }
- /**
- * Callback to convert URI match to HTML A element.
- *
- * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link
- * make_clickable()}.
- *
- * @since 2.3.2
- * @access private
- *
- * @param array $matches Single Regex Match.
- * @return string HTML A element with URI address.
- */
- function _make_url_clickable_cb($matches) {
- $url = $matches[2];
- $url = esc_url($url);
- if ( empty($url) )
- return $matches[0];
- return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>";
- }
- /**
- * Callback to convert URL match to HTML A element.
- *
- * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link
- * make_clickable()}.
- *
- * @since 2.3.2
- * @access private
- *
- * @param array $matches Single Regex Match.
- * @return string HTML A element with URL address.
- */
- function _make_web_ftp_clickable_cb($matches) {
- $ret = '';
- $dest = $matches[2];
- $dest = 'http://' . $dest;
- $dest = esc_url($dest);
- if ( empty($dest) )
- return $matches[0];
- // removed trailing [.,;:)] from URL
- if ( in_array( substr($dest, -1), array('.', ',', ';', ':', ')') ) === true ) {
- $ret = substr($dest, -1);
- $dest = substr($dest, 0, strlen($dest)-1);
- }
- return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>$ret";
- }
- /**
- * Callback to convert email address match to HTML A element.
- *
- * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link
- * make_clickable()}.
- *
- * @since 2.3.2
- * @access private
- *
- * @param array $matches Single Regex Match.
- * @return string HTML A element with email address.
- */
- function _make_email_clickable_cb($matches) {
- $email = $matches[2] . '@' . $matches[3];
- return $matches[1] . "<a href=\"mailto:$email\">$email</a>";
- }
- /**
- * Convert plaintext URI to HTML links.
- *
- * Converts URI, www and ftp, and email addresses. Finishes by fixing links
- * within links.
- *
- * @since 0.71
- *
- * @param string $ret Content to convert URIs.
- * @return string Content with converted URIs.
- */
- function make_clickable($ret) {
- $ret = ' ' . $ret;
- // in testing, using arrays here was found to be faster
- $ret = preg_replace_callback('#(?<=[\s>])(\()?([\w]+?://(?:[\w\\x80-\\xff\#$%&~/=?@\[\](+-]|[.,;:](?![\s<]|(\))?([\s]|$))|(?(1)\)(?![\s<.,;:]|$)|\)))+)#is', '_make_url_clickable_cb', $ret);
- $ret = preg_replace_callback('#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]+)#is', '_make_web_ftp_clickable_cb', $ret);
- $ret = preg_replace_callback('#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret);
- // this one is not in an array because we need it to run last, for cleanup of accidental links within links
- $ret = preg_replace("#(<a( [^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i", "$1$3</a>", $ret);
- $ret = trim($ret);
- return $ret;
- }
- /**
- * Adds rel nofollow string to all HTML A elements in content.
- *
- * @since 1.5.0
- *
- * @param string $text Content that may contain HTML A elements.
- * @return string Converted content.
- */
- function wp_rel_nofollow( $text ) {
- // This is a pre save filter, so text is already escaped.
- $text = stripslashes($text);
- $text = preg_replace_callback('|<a (.+?)>|i', 'wp_rel_nofollow_callback', $text);
- $text = esc_sql($text);
- return $text;
- }
- /**
- * Callback to used to add rel=nofollow string to HTML A element.
- *
- * Will remove already existing rel="nofollow" and rel='nofollow' from the
- * string to prevent from invalidating (X)HTML.
- *
- * @since 2.3.0
- *
- * @param array $matches Single Match
- * @return string HTML A Element with rel nofollow.
- */
- function wp_rel_nofollow_callback( $matches ) {
- $text = $matches[1];
- $text = str_replace(array(' rel="nofollow"', " rel='nofollow'"), '', $text);
- return "<a $text rel=\"nofollow\">";
- }
- /**
- * Convert one smiley code to the icon graphic file equivalent.
- *
- * Looks up one smiley code in the $wpsmiliestrans global array and returns an
- * <img> string for that smiley.
- *
- * @global array $wpsmiliestrans
- * @since 2.8.0
- *
- * @param string $smiley Smiley code to convert to image.
- * @return string Image string for smiley.
- */
- function translate_smiley($smiley) {
- global $wpsmiliestrans;
- if (count($smiley) == 0) {
- return '';
- }
- $siteurl = get_option( 'siteurl' );
- $smiley = trim(reset($smiley));
- $img = $wpsmiliestrans[$smiley];
- $smiley_masked = esc_attr($smiley);
- $srcurl = apply_filters('smilies_src', "$siteurl/wp-includes/images/smilies/$img", $img, $siteurl);
- return " <img src='$srcurl' alt='$smiley_masked' class='wp-smiley' /> ";
- }
- /**
- * Convert text equivalent of smilies to images.
- *
- * Will only convert smilies if the option 'use_smilies' is true and the global
- * used in the function isn't empty.
- *
- * @since 0.71
- * @uses $wp_smiliessearch
- *
- * @param string $text Content to convert smilies from text.
- * @return string Converted cont…
Large files files are truncated, but you can click here to view the full file