/** * Classes, which help reading streams of data from files. * Based on the classes from Danilo Segan * * @version $Id: streams.php 597 2011-01-16 20:14:36Z nbachiyski $ * @package pomo * @subpackage streams */ if ( !class_exists( 'POMO_Reader' ) ): class POMO_Reader { var $endian = 'little'; var $_post = ''; function POMO_Reader() { $this->is_overloaded = ((ini_get("mbstring.func_overload") & 2) != 0) && function_exists('mb_substr'); $this->_pos = 0; } /** * Sets the endianness of the file. * * @param $endian string 'big' or 'little' */ function setEndian($endian) { $this->endian = $endian; } /** * Reads a 32bit Integer from the Stream * * @return mixed The integer, corresponding to the next 32 bits from * the stream of false if there are not enough bytes or on error */ function readint32() { $bytes = $this->read(4); if (4 != $this->strlen($bytes)) return false; $endian_letter = ('big' == $this->endian)? 'N' : 'V'; $int = unpack($endian_letter, $bytes); return array_shift($int); } /** * Reads an array of 32-bit Integers from the Stream * * @param integer count How many elements should be read * @return mixed Array of integers or false if there isn't * enough data or on error */ function readint32array($count) { $bytes = $this->read(4 * $count); if (4*$count != $this->strlen($bytes)) return false; $endian_letter = ('big' == $this->endian)? 'N' : 'V'; return unpack($endian_letter.$count, $bytes); } function substr($string, $start, $length) { if ($this->is_overloaded) { return mb_substr($string, $start, $length, 'ascii'); } else { return substr($string, $start, $length); } } function strlen($string) { if ($this->is_overloaded) { return mb_strlen($string, 'ascii'); } else { return strlen($string); } } function str_split($string, $chunk_size) { if (!function_exists('str_split')) { $length = $this->strlen($string); $out = array(); for ($i = 0; $i < $length; $i += $chunk_size) $out[] = $this->substr($string, $i, $chunk_size); return $out; } else { return str_split( $string, $chunk_size ); } } function pos() { return $this->_pos; } function is_resource() { return true; } function close() { return true; } } endif; if ( !class_exists( 'POMO_FileReader' ) ): class POMO_FileReader extends POMO_Reader { function POMO_FileReader($filename) { parent::POMO_Reader(); $this->_f = fopen($filename, 'rb'); } function read($bytes) { return fread($this->_f, $bytes); } function seekto($pos) { if ( -1 == fseek($this->_f, $pos, SEEK_SET)) { return false; } $this->_pos = $pos; return true; } function is_resource() { return is_resource($this->_f); } function feof() { return feof($this->_f); } function close() { return fclose($this->_f); } function read_all() { $all = ''; while ( !$this->feof() ) $all .= $this->read(4096); return $all; } } endif; if ( !class_exists( 'POMO_StringReader' ) ): /** * Provides file-like methods for manipulating a string instead * of a physical file. */ class POMO_StringReader extends POMO_Reader { var $_str = ''; function POMO_StringReader($str = '') { parent::POMO_Reader(); $this->_str = $str; $this->_pos = 0; } function read($bytes) { $data = $this->substr($this->_str, $this->_pos, $bytes); $this->_pos += $bytes; if ($this->strlen($this->_str) < $this->_pos) $this->_pos = $this->strlen($this->_str); return $data; } function seekto($pos) { $this->_pos = $pos; if ($this->strlen($this->_str) < $this->_pos) $this->_pos = $this->strlen($this->_str); return $this->_pos; } function length() { return $this->strlen($this->_str); } function read_all() { return $this->substr($this->_str, $this->_pos, $this->strlen($this->_str)); } } endif; if ( !class_exists( 'POMO_CachedFileReader' ) ): /** * Reads the contents of the file in the beginning. */ class POMO_CachedFileReader extends POMO_StringReader { function POMO_CachedFileReader($filename) { parent::POMO_StringReader(); $this->_str = file_get_contents($filename); if (false === $this->_str) return false; $this->_pos = 0; } } endif; if ( !class_exists( 'POMO_CachedIntFileReader' ) ): /** * Reads the contents of the file in the beginning. */ class POMO_CachedIntFileReader extends POMO_CachedFileReader { function POMO_CachedIntFileReader($filename) { parent::POMO_CachedFileReader($filename); } } endif;/** * BackPress script procedural API. * * @package BackPress * @since r16 */ /** * Prints script tags in document head. * * Called by admin-header.php and by wp_head hook. Since it is called by wp_head * on every page load, the function does not instantiate the WP_Scripts object * unless script names are explicitly passed. Does make use of already * instantiated $wp_scripts if present. Use provided wp_print_scripts hook to * register/enqueue new scripts. * * @since r16 * @see WP_Dependencies::print_scripts() */ function wp_print_scripts( $handles = false ) { do_action( 'wp_print_scripts' ); if ( '' === $handles ) // for wp_head $handles = false; global $wp_scripts; if ( ! is_a( $wp_scripts, 'WP_Scripts' ) ) { if ( ! did_action( 'init' ) ) _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ), 'wp_enqueue_scripts', 'admin_enqueue_scripts', 'init' ), '3.3' ); if ( !$handles ) return array(); // No need to instantiate if nothing is there. else $wp_scripts = new WP_Scripts(); } return $wp_scripts->do_items( $handles ); } /** * Register new Javascript file. * * @since r16 * @param string $handle Script name * @param string $src Script url * @param array $deps (optional) Array of script names on which this script depends * @param string|bool $ver (optional) Script version (used for cache busting), set to null to disable * @param bool $in_footer (optional) Whether to enqueue the script before or before * @return null */ function wp_register_script( $handle, $src, $deps = array(), $ver = false, $in_footer = false ) { global $wp_scripts; if ( ! is_a( $wp_scripts, 'WP_Scripts' ) ) { if ( ! did_action( 'init' ) ) _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ), 'wp_enqueue_scripts', 'admin_enqueue_scripts', 'init' ), '3.3' ); $wp_scripts = new WP_Scripts(); } $wp_scripts->add( $handle, $src, $deps, $ver ); if ( $in_footer ) $wp_scripts->add_data( $handle, 'group', 1 ); } /** * Wrapper for $wp_scripts->localize(). * * Used to localizes a script. * Works only if the script has already been added. * Accepts an associative array $l10n and creates JS object: * "$object_name" = { * key: value, * key: value, * ... * } * See http://core.trac.wordpress.org/ticket/11520 for more information. * * @since r16 * * @param string $handle The script handle that was registered or used in script-loader * @param string $object_name Name for the created JS object. This is passed directly so it should be qualified JS variable /[a-zA-Z0-9_]+/ * @param array $l10n Associative PHP array containing the translated strings. HTML entities will be converted and the array will be JSON encoded. * @return bool Whether the localization was added successfully. */ function wp_localize_script( $handle, $object_name, $l10n ) { global $wp_scripts; if ( ! is_a( $wp_scripts, 'WP_Scripts' ) ) { if ( ! did_action( 'init' ) ) _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ), 'wp_enqueue_scripts', 'admin_enqueue_scripts', 'init' ), '3.3' ); return false; } return $wp_scripts->localize( $handle, $object_name, $l10n ); } /** * Remove a registered script. * * @since r16 * @see WP_Scripts::remove() For parameter information. */ function wp_deregister_script( $handle ) { global $wp_scripts; if ( ! is_a( $wp_scripts, 'WP_Scripts' ) ) { if ( ! did_action( 'init' ) ) _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ), 'wp_enqueue_scripts', 'admin_enqueue_scripts', 'init' ), '3.3' ); $wp_scripts = new WP_Scripts(); } $wp_scripts->remove( $handle ); } /** * Enqueues script. * * Registers the script if src provided (does NOT overwrite) and enqueues. * * @since r16 * @see wp_register_script() For parameter information. */ function wp_enqueue_script( $handle, $src = false, $deps = array(), $ver = false, $in_footer = false ) { global $wp_scripts; if ( ! is_a( $wp_scripts, 'WP_Scripts' ) ) { if ( ! did_action( 'init' ) ) _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ), 'wp_enqueue_scripts', 'admin_enqueue_scripts', 'init' ), '3.3' ); $wp_scripts = new WP_Scripts(); } if ( $src ) { $_handle = explode('?', $handle); $wp_scripts->add( $_handle[0], $src, $deps, $ver ); if ( $in_footer ) $wp_scripts->add_data( $_handle[0], 'group', 1 ); } $wp_scripts->enqueue( $handle ); } /** * Remove an enqueued script. * * @since WP 3.1 * @see WP_Scripts::dequeue() For parameter information. */ function wp_dequeue_script( $handle ) { global $wp_scripts; if ( ! is_a( $wp_scripts, 'WP_Scripts' ) ) { if ( ! did_action( 'init' ) ) _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ), 'wp_enqueue_scripts', 'admin_enqueue_scripts', 'init' ), '3.3' ); $wp_scripts = new WP_Scripts(); } $wp_scripts->dequeue( $handle ); } /** * Check whether script has been added to WordPress Scripts. * * The values for list defaults to 'queue', which is the same as enqueue for * scripts. * * @since WP unknown; BP unknown * * @param string $handle Handle used to add script. * @param string $list Optional, defaults to 'queue'. Others values are 'registered', 'queue', 'done', 'to_do' * @return bool */ function wp_script_is( $handle, $list = 'queue' ) { global $wp_scripts; if ( ! is_a( $wp_scripts, 'WP_Scripts' ) ) { if ( ! did_action( 'init' ) ) _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ), 'wp_enqueue_scripts', 'admin_enqueue_scripts', 'init' ), '3.3' ); $wp_scripts = new WP_Scripts(); } $query = $wp_scripts->query( $handle, $list ); if ( is_object( $query ) ) return true; return $query; } /** * WordPress API for creating bbcode like tags or what WordPress calls * "shortcodes." The tag and attribute parsing or regular expression code is * based on the Textpattern tag parser. * * A few examples are below: * * [shortcode /] * [shortcode foo="bar" baz="bing" /] * [shortcode foo="bar"]content[/shortcode] * * Shortcode tags support attributes and enclosed content, but does not entirely * support inline shortcodes in other shortcodes. You will have to call the * shortcode parser in your function to account for that. * * {@internal * Please be aware that the above note was made during the beta of WordPress 2.6 * and in the future may not be accurate. Please update the note when it is no * longer the case.}} * * To apply shortcode tags to content: * * * $out = do_shortcode($content); * * * @link http://codex.wordpress.org/Shortcode_API * * @package WordPress * @subpackage Shortcodes * @since 2.5 */ /** * Container for storing shortcode tags and their hook to call for the shortcode * * @since 2.5 * @name $shortcode_tags * @var array * @global array $shortcode_tags */ $shortcode_tags = array(); /** * Add hook for shortcode tag. * * There can only be one hook for each shortcode. Which means that if another * plugin has a similar shortcode, it will override yours or yours will override * theirs depending on which order the plugins are included and/or ran. * * Simplest example of a shortcode tag using the API: * * * // [footag foo="bar"] * function footag_func($atts) { * return "foo = {$atts[foo]}"; * } * add_shortcode('footag', 'footag_func'); * * * Example with nice attribute defaults: * * * // [bartag foo="bar"] * function bartag_func($atts) { * extract(shortcode_atts(array( * 'foo' => 'no foo', * 'baz' => 'default baz', * ), $atts)); * * return "foo = {$foo}"; * } * add_shortcode('bartag', 'bartag_func'); * * * Example with enclosed content: * * * // [baztag]content[/baztag] * function baztag_func($atts, $content='') { * return "content = $content"; * } * add_shortcode('baztag', 'baztag_func'); * * * @since 2.5 * @uses $shortcode_tags * * @param string $tag Shortcode tag to be searched in post content. * @param callable $func Hook to run when shortcode is found. */ function add_shortcode($tag, $func) { global $shortcode_tags; if ( is_callable($func) ) $shortcode_tags[$tag] = $func; } /** * Removes hook for shortcode. * * @since 2.5 * @uses $shortcode_tags * * @param string $tag shortcode tag to remove hook for. */ function remove_shortcode($tag) { global $shortcode_tags; unset($shortcode_tags[$tag]); } /** * Clear all shortcodes. * * This function is simple, it clears all of the shortcode tags by replacing the * shortcodes global by a empty array. This is actually a very efficient method * for removing all shortcodes. * * @since 2.5 * @uses $shortcode_tags */ function remove_all_shortcodes() { global $shortcode_tags; $shortcode_tags = array(); } /** * Search content for shortcodes and filter shortcodes through their hooks. * * If there are no shortcode tags defined, then the content will be returned * without any filtering. This might cause issues when plugins are disabled but * the shortcode will still show up in the post or content. * * @since 2.5 * @uses $shortcode_tags * @uses get_shortcode_regex() Gets the search pattern for searching shortcodes. * * @param string $content Content to search for shortcodes * @return string Content with shortcodes filtered out. */ function do_shortcode($content) { global $shortcode_tags; if (empty($shortcode_tags) || !is_array($shortcode_tags)) return $content; $pattern = get_shortcode_regex(); return preg_replace_callback( "/$pattern/s", 'do_shortcode_tag', $content ); } /** * Retrieve the shortcode regular expression for searching. * * The regular expression combines the shortcode tags in the regular expression * in a regex class. * * The regular expression contains 6 different sub matches to help with parsing. * * 1 - An extra [ to allow for escaping shortcodes with double [[]] * 2 - The shortcode name * 3 - The shortcode argument list * 4 - The self closing / * 5 - The content of a shortcode when it wraps some content. * 6 - An extra ] to allow for escaping shortcodes with double [[]] * * @since 2.5 * @uses $shortcode_tags * * @return string The shortcode search regular expression */ function get_shortcode_regex() { global $shortcode_tags; $tagnames = array_keys($shortcode_tags); $tagregexp = join( '|', array_map('preg_quote', $tagnames) ); // WARNING! Do not change this regex without changing do_shortcode_tag() and strip_shortcode_tag() return '\\[' // Opening bracket . '(\\[?)' // 1: Optional second opening bracket for escaping shortcodes: [[tag]] . "($tagregexp)" // 2: Shortcode name . '\\b' // Word boundary . '(' // 3: Unroll the loop: Inside the opening shortcode tag . '[^\\]\\/]*' // Not a closing bracket or forward slash . '(?:' . '\\/(?!\\])' // A forward slash not followed by a closing bracket . '[^\\]\\/]*' // Not a closing bracket or forward slash . ')*?' . ')' . '(?:' . '(\\/)' // 4: Self closing tag ... . '\\]' // ... and closing bracket . '|' . '\\]' // Closing bracket . '(?:' . '(' // 5: Unroll the loop: Optionally, anything between the opening and closing shortcode tags . '[^\\[]*+' // Not an opening bracket . '(?:' . '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag . '[^\\[]*+' // Not an opening bracket . ')*+' . ')' . '\\[\\/\\2\\]' // Closing shortcode tag . ')?' . ')' . '(\\]?)'; // 6: Optional second closing brocket for escaping shortcodes: [[tag]] } /** * Regular Expression callable for do_shortcode() for calling shortcode hook. * @see get_shortcode_regex for details of the match array contents. * * @since 2.5 * @access private * @uses $shortcode_tags * * @param array $m Regular expression match array * @return mixed False on failure. */ function do_shortcode_tag( $m ) { global $shortcode_tags; // allow [[foo]] syntax for escaping a tag if ( $m[1] == '[' && $m[6] == ']' ) { return substr($m[0], 1, -1); } $tag = $m[2]; $attr = shortcode_parse_atts( $m[3] ); if ( isset( $m[5] ) ) { // enclosing tag - extra parameter return $m[1] . call_user_func( $shortcode_tags[$tag], $attr, $m[5], $tag ) . $m[6]; } else { // self-closing tag return $m[1] . call_user_func( $shortcode_tags[$tag], $attr, null, $tag ) . $m[6]; } } /** * Retrieve all attributes from the shortcodes tag. * * The attributes list has the attribute name as the key and the value of the * attribute as the value in the key/value pair. This allows for easier * retrieval of the attributes, since all attributes have to be known. * * @since 2.5 * * @param string $text * @return array List of attributes and their value. */ function shortcode_parse_atts($text) { $atts = array(); $pattern = '/(\w+)\s*=\s*"([^"]*)"(?:\s|$)|(\w+)\s*=\s*\'([^\']*)\'(?:\s|$)|(\w+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|(\S+)(?:\s|$)/'; $text = preg_replace("/[\x{00a0}\x{200b}]+/u", " ", $text); if ( preg_match_all($pattern, $text, $match, PREG_SET_ORDER) ) { foreach ($match as $m) { if (!empty($m[1])) $atts[strtolower($m[1])] = stripcslashes($m[2]); elseif (!empty($m[3])) $atts[strtolower($m[3])] = stripcslashes($m[4]); elseif (!empty($m[5])) $atts[strtolower($m[5])] = stripcslashes($m[6]); elseif (isset($m[7]) and strlen($m[7])) $atts[] = stripcslashes($m[7]); elseif (isset($m[8])) $atts[] = stripcslashes($m[8]); } } else { $atts = ltrim($text); } return $atts; } /** * Combine user attributes with known attributes and fill in defaults when needed. * * The pairs should be considered to be all of the attributes which are * supported by the caller and given as a list. The returned attributes will * only contain the attributes in the $pairs list. * * If the $atts list has unsupported attributes, then they will be ignored and * removed from the final returned list. * * @since 2.5 * * @param array $pairs Entire list of supported attributes and their defaults. * @param array $atts User defined attributes in shortcode tag. * @return array Combined and filtered attribute list. */ function shortcode_atts($pairs, $atts) { $atts = (array)$atts; $out = array(); foreach($pairs as $name => $default) { if ( array_key_exists($name, $atts) ) $out[$name] = $atts[$name]; else $out[$name] = $default; } return $out; } /** * Remove all shortcode tags from the given content. * * @since 2.5 * @uses $shortcode_tags * * @param string $content Content to remove shortcode tags. * @return string Content without shortcode tags. */ function strip_shortcodes( $content ) { global $shortcode_tags; if (empty($shortcode_tags) || !is_array($shortcode_tags)) return $content; $pattern = get_shortcode_regex(); return preg_replace_callback( "/$pattern/s", 'strip_shortcode_tag', $content ); } function strip_shortcode_tag( $m ) { // allow [[foo]] syntax for escaping a tag if ( $m[1] == '[' && $m[6] == ']' ) { return substr($m[0], 1, -1); } return $m[1] . $m[6]; } add_filter('the_content', 'do_shortcode', 11); // AFTER wpautop()
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