diff options
Diffstat (limited to 'plugins/wp-syntax/wp-syntax.php')
| -rw-r--r-- | plugins/wp-syntax/wp-syntax.php | 563 |
1 files changed, 364 insertions, 199 deletions
diff --git a/plugins/wp-syntax/wp-syntax.php b/plugins/wp-syntax/wp-syntax.php index 3d195ead..d3a95ffe 100644 --- a/plugins/wp-syntax/wp-syntax.php +++ b/plugins/wp-syntax/wp-syntax.php @@ -1,207 +1,372 @@ <?php /* Plugin Name: WP-Syntax -Plugin URI: http://wordpress.org/extend/plugins/wp-syntax/ -Description: Syntax highlighting using <a href="http://qbnz.com/highlighter/">GeSHi</a> supporting a wide range of popular languages. Wrap code blocks with <code><pre lang="LANGUAGE" line="1"></code> and <code></pre></code> where <code>LANGUAGE</code> is a geshi supported language syntax. The <code>line</code> attribute is optional. +Plugin URI: http://www.connections-pro.com +Description: Syntax highlighting using <a href="http://qbnz.com/highlighter/">GeSHi</a> supporting a wide range of popular languages. +Version: 1.0 Author: Steven A. Zahm -Version: 0.9.12 -Author URI: http://connections-pro.com +Author URI: http://www.connections-pro.com +License: GPL2 +Text Domain: wp_syntax +Domain Path: /lang + +Original Author: Ryan McGeary + +Copyright 2013 Steven A. Zahm (email : helpdesk@connections-pro.com) + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License, version 2, as +published by the Free Software Foundation. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -# Original Author: Ryan McGeary - -# -# Copyright (c) 2007-2009 Ryan McGeary 2010 Steven A. Zahm -# -# This file is part of WP-Syntax. -# -# WP-Syntax is free software; you can redistribute it and/or modify it under -# the terms of the GNU General Public License as published by the Free -# Software Foundation; either version 2 of the License, or (at your option) -# any later version. -# -# WP-Syntax is distributed in the hope that it will be useful, but WITHOUT ANY -# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS -# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more -# details. -# -# You should have received a copy of the GNU General Public License along -# with WP-Syntax; if not, write to the Free Software Foundation, Inc., 59 -# Temple Place, Suite 330, Boston, MA 02111-1307 USA -# - -// Override allowed attributes for pre tags in order to use <pre lang=""> in -// comments. For more info see wp-includes/kses.php -if (!CUSTOM_TAGS) { - $allowedposttags['pre'] = array( - 'lang' => array(), - 'line' => array(), - 'escaped' => array(), - 'style' => array(), - 'width' => array(), - 'highlight' => array() - ); - //Allow plugin use in comments - $allowedtags['pre'] = array( - 'lang' => array(), - 'line' => array(), - 'escaped' => array(), - 'highlight' => array() - ); -} - -include_once("geshi/geshi.php"); - -if (!defined("WP_CONTENT_URL")) define("WP_CONTENT_URL", get_option("siteurl") . "/wp-content"); -if (!defined("WP_PLUGIN_URL")) define("WP_PLUGIN_URL", WP_CONTENT_URL . "/plugins"); - -function wp_syntax_head() -{ - /*$css_url = WP_PLUGIN_URL . "/wp-syntax/wp-syntax.css"; - if (file_exists(TEMPLATEPATH . "/wp-syntax.css")) - { - $css_url = get_bloginfo("template_url") . "/wp-syntax.css"; - } - echo "\n".'<link rel="stylesheet" href="' . $css_url . '" type="text/css" media="screen" />'."\n";*/ - - $css_url = WP_PLUGIN_URL . "/wp-syntax/wp-syntax.css"; - if (file_exists(STYLESHEETPATH . "/wp-syntax.css")) - { - $css_url = get_bloginfo("stylesheet_directory") . "/wp-syntax.css"; - } - echo "\n".'<link rel="stylesheet" href="' . $css_url . '" type="text/css" media="screen" />'."\n"; -} - -function wp_syntax_code_trim($code) -{ - // special ltrim b/c leading whitespace matters on 1st line of content - $code = preg_replace("/^\s*\n/siU", "", $code); - $code = rtrim($code); - return $code; -} - -function wp_syntax_substitute(&$match) -{ - global $wp_syntax_token, $wp_syntax_matches; - - $i = count($wp_syntax_matches); - $wp_syntax_matches[$i] = $match; - - return "\n\n<p>" . $wp_syntax_token . sprintf("%03d", $i) . "</p>\n\n"; -} - -function wp_syntax_line_numbers($code, $start) -{ - $line_count = count(explode("\n", $code)); - $output = "<pre>"; - for ($i = 0; $i < $line_count; $i++) - { - $output .= ($start + $i) . "\n"; - } - $output .= "</pre>"; - return $output; -} - -function wp_syntax_highlight($match) -{ - global $wp_syntax_matches; - - $i = intval($match[1]); - $match = $wp_syntax_matches[$i]; - - $language = strtolower(trim($match[1])); - $line = trim($match[2]); - $escaped = trim($match[3]); - - $code = wp_syntax_code_trim($match[5]); - if ($escaped == "true") $code = htmlspecialchars_decode($code); - - $geshi = new GeSHi($code, $language); - $geshi->enable_keyword_links(false); - do_action_ref_array('wp_syntax_init_geshi', array(&$geshi)); - - //START LINE HIGHLIGHT SUPPORT - $highlight = array(); - if ( !empty($match[4]) ) - { - $highlight = strpos($match[4],',') == false ? array($match[4]) : explode(',', $match[4]); - - $h_lines = array(); - for( $i=0; $i<sizeof($highlight); $i++ ) - { - $h_range = explode('-', $highlight[$i]); - - if( sizeof($h_range) == 2 ) - $h_lines = array_merge( $h_lines, range($h_range[0], $h_range[1]) ); - else - array_push($h_lines, $highlight[$i]); +/* +@todo integrate TinyMCE button support using one of these as a base: + http://wordpress.org/extend/plugins/wp-syntax-integration/ + http://wordpress.org/extend/plugins/wp-syntax-button/ +@todo Merge this add-on plugin functionality: http://wordpress.org/extend/plugins/wp-syntax-download-extension/ + +Look at these: http://wordpress.org/extend/plugins/wp-synhighlight/ + http://wordpress.org/extend/plugins/wp-codebox/ + */ + +if ( ! class_exists( 'WP_Syntax' ) ) { + + class WP_Syntax { + + /** + * @var (object) WP_Syntax stores the instance of this class. + */ + private static $instance; + + private static $token; + + private static $matches; + + /** + * A dummy constructor to prevent WP_Syntax from being loaded more than once. + * + * @access private + * @since 1.0 + * @see WP_Syntax::instance() + * @see WP_Syntax(); + */ + private function __construct() { /* Do nothing here */ } + + /** + * Main WP_Syntax Instance + * + * Insures that only one instance of WP_Syntax exists in memory at any one time. + * + * @access public + * @since 1.0 + * @return object WP_Syntax + */ + public static function getInstance() { + if ( ! isset( self::$instance ) ) { + self::$instance = new self; + self::$instance->init(); + } + return self::$instance; + } + + /** + * Initiate the plugin. + * + * @access private + * @since 1.0 + * @return void + */ + private function init() { + + self::defineConstants(); + self::inludeDependencies(); + + self::$token = md5( uniqid( rand() ) ); + + self::$matches = array(); + + // Nothing to do during activation/deactivation yet... + // register_activation_hook( dirname(__FILE__) . '/wp-syntax.php', array( __CLASS__, 'activate' ) ); + // register_deactivation_hook( dirname(__FILE__) . '/wp-syntax.php', array( __CLASS__, 'deactivate' ) ); + + // Nothing to translate presently. + // load_plugin_textdomain( 'wp_syntax' , false , WPS__DIR_NAME . 'lang' ); + + add_action( 'wp_enqueue_scripts', array( __CLASS__, 'enqueueScripts' ) ); + + // Update config for WYSIWYG editor to accept the pre tag and its attributes. + add_filter( 'tiny_mce_before_init', array( __CLASS__,'tinyMCEConfig') ); + + // We want to run before other filters; hence, a priority of 0 was chosen. + // The lower the number, the higher the priority. 10 is the default and + // several formatting filters run at or around 6. + add_filter( 'the_content', array( __CLASS__, 'beforeFilter' ), 0); + add_filter( 'the_excerpt', array( __CLASS__, 'beforeFilter' ), 0); + add_filter( 'comment_text', array( __CLASS__, 'beforeFilter' ), 0); + + // We want to run after other filters; hence, a priority of 99. + add_filter( 'the_content', array( __CLASS__, 'afterFilter' ), 99); + add_filter( 'the_excerpt', array( __CLASS__, 'afterFilter' ), 99); + add_filter( 'comment_text', array( __CLASS__, 'afterFilter' ), 99); + + } + + /** + * Define the constants. + * + * @access private + * @since 1.0 + * @return void + */ + private static function defineConstants() { + + define( 'WPS_VERSION', '1.0' ); + + define( 'WPS_DIR_NAME', plugin_basename( dirname( __FILE__ ) ) ); + define( 'WPS_BASE_NAME', plugin_basename( __FILE__ ) ); + define( 'WPS_BASE_PATH', plugin_dir_path( __FILE__ ) ); + define( 'WPS_BASE_URL', plugin_dir_url( __FILE__ ) ); + + } + + private static function inludeDependencies() { + + include_once( 'geshi/geshi.php' ); + + } + + /** + * Called when activating via the activation hook. + * + * @access private + * @since 1.0 + * @return void + */ + public static function activate() { + + } + + /** + * Called when deactivating via the deactivation hook. + * + * @access private + * @since 1.0 + * @return void + */ + public static function deactivate() { + + } + + /** + * Enqueue the CSS and JavaScripts. + * + * @access private + * @since 1.0 + * @return void + */ + public static function enqueueScripts() { + + // If a wp-syntax.css file exists in the theme folder use it instead. + $url = file_exists( STYLESHEETPATH . '/wp-syntax.css' ) ? get_bloginfo( 'stylesheet_directory' ) . '/wp-syntax.css' : WPS_BASE_URL . 'css/wp-syntax.css'; + + // Enqueue the CSS + wp_enqueue_style( 'wp-syntax-css', $url, array(), WPS_VERSION ); + + // Enqueue the JavaScript + // wp_enqueue_script( 'wp-syntax-js', WPS_BASE_URL . 'js/wp-syntax.js', array( 'jquery' ), WPS_VERSION, TRUE ); + + } + + /** + * Update the TinyMCE config to add support for the pre tag and its attributes. + * + * @access private + * @since 0.9.13 + * @param (array) $init The TinyMCE config. + * @return (array) + */ + public static function tinyMCEConfig( $init ) { + + $ext = 'pre[id|name|class|style|lang|line|escaped|highlight|src]'; + + if ( isset( $init['extended_valid_elements'] ) ) { + $init['extended_valid_elements'] .= "," . $ext; + } else { + $init['extended_valid_elements'] = $ext; + } + + return $init; + } + + // special ltrim b/c leading whitespace matters on 1st line of content + public static function trimCode( $code ) { + $code = preg_replace("/^\s*\n/siU", '', $code); + $code = rtrim ($code ); + return $code; + } + + public static function substituteToken( &$match ) { + // global $wp_syntax_token, $wp_syntax_matches; + + $i = count( self::$matches ); + self::$matches[ $i ] = $match; + + return "\n\n<p>" . self::$token . sprintf( '%03d', $i ) . "</p>\n\n"; + } + + public static function lineNumbers( $code, $start ) { + + $line_count = count( explode( "\n", $code ) ); + $output = '<pre>'; + + for ( $i = 0; $i < $line_count; $i++ ) { + $output .= ( $start + $i ) . "\n"; + } + + $output .= '</pre>'; + + return $output; + } + + public static function caption( $url ) { + + $parsed = parse_url( $url ); + $path = pathinfo( $parsed['path'] ); + $caption = ''; + + if ( ! isset( $path['filename'] ) ) { + return; + } + + if ( isset( $parsed['scheme'] ) ) { + $caption .= '<a href="' . $url . '">'; + } + + if ( isset( $parsed["host"] ) && $parsed["host"] == 'github.com' ) + { + $caption .= substr( $parsed['path'], strpos( $parsed['path'], '/', 1 ) ); /* strip github.com username */ + } else { + $caption .= $parsed['path']; + } + + /* $caption . $path["filename"]; + if (isset($path["extension"])) { + $caption .= "." . $path["extension"]; + }*/ + + if ( isset($parsed['scheme']) ) { + $caption .= '</a>'; + } + + return $caption; + } + + public static function highlight( $match ) { + // global $wp_syntax_matches; + + $i = intval( $match[1] ); + $match = self::$matches[ $i ]; + + $language = strtolower( trim( $match[1] ) ); + $line = trim( $match[2] ); + $escaped = trim( $match[3] ); + $caption = self::caption( $match[5] ); + $code = self::trimCode( $match[6] ); + + if ( $escaped == 'true' ) $code = htmlspecialchars_decode( $code ); + + $geshi = new GeSHi( $code, $language ); + $geshi->enable_keyword_links( FALSE ); + + do_action_ref_array( 'wp_syntax_init_geshi', array( &$geshi ) ); + + if ( ! empty( $match[4] ) ) { + + $linespecs = strpos( $match[4], ",") == FALSE ? array( $match[4] ) : explode( ',', $match[4] ); + $lines = array(); + + foreach ( $linespecs as $spec ) { + $range = explode( '-', $spec ); + $lines = array_merge( $lines, ( count( $range ) == 2) ? range( $range[0], $range[1]) : $range ); + } + + $geshi->highlight_lines_extra( $lines ); + } + + $output = "\n" . '<div class="wp_syntax">'; + $output .= '<table>'; + + if ( ! empty( $caption ) ) { + $output .= '<caption>' . $caption . '</caption>'; + } + + $output .= '<tr>'; + + if ( $line ) { + $output .='<td class="line_numbers">' . self::lineNumbers( $code, $line ) . '</td>'; + } + + $output .= '<td class="code">'; + $output .= $geshi->parse_code(); + $output .= '</td></tr></table>'; + $output .= '</div>' . "\n"; + + return $output; + } + + public static function beforeFilter( $content ) { + + return preg_replace_callback( + "/\s*<pre(?:lang=[\"']([\w-]+)[\"']|line=[\"'](\d*)[\"']|escaped=[\"'](true|false)?[\"']|highlight=[\"']((?:\d+[,-])*\d+)[\"']|src=[\"']([^\"']+)[\"']|\s)+>(.*)<\/pre>\s*/siU", + array( __CLASS__, 'substituteToken' ), + $content + ); + + } + + public static function afterFilter( $content ) { + // global $wp_syntax_token; + + $content = preg_replace_callback( + '/<p>\s*' . self::$token . '(\d{3})\s*<\/p>/si', + array( __CLASS__, 'highlight' ), + $content + ); + + return $content; + } + } - $geshi->highlight_lines_extra( $h_lines ); - } - //END LINE HIGHLIGHT SUPPORT - - $output = "\n<div class=\"wp_syntax\">"; - - if ($line) - { - $output .= "<table><tr><td class=\"line_numbers\">"; - $output .= wp_syntax_line_numbers($code, $line); - $output .= "</td><td class=\"code\">"; - $output .= $geshi->parse_code(); - $output .= "</td></tr></table>"; - } - else - { - $output .= "<div class=\"code\">"; - $output .= $geshi->parse_code(); - $output .= "</div>"; - } - return - - $output .= "</div>\n"; - - return $output; -} - -function wp_syntax_before_filter($content) -{ - return preg_replace_callback( - "/\s*<pre(?:lang=[\"']([\w-]+)[\"']|line=[\"'](\d*)[\"']|escaped=[\"'](true|false)?[\"']|highlight=[\"']((?:\d+[,-])*\d+)[\"']|\s)+>(.*)<\/pre>\s*/siU", - "wp_syntax_substitute", - $content - ); -} - -function wp_syntax_after_filter($content) -{ - global $wp_syntax_token; - - $content = preg_replace_callback( - "/<p>\s*".$wp_syntax_token."(\d{3})\s*<\/p>/si", - "wp_syntax_highlight", - $content - ); - - return $content; -} - -$wp_syntax_token = md5(uniqid(rand())); -$wp_syntax_matches = array(); - -// Add styling -add_action('wp_head', 'wp_syntax_head'); - -// We want to run before other filters; hence, a priority of 0 was chosen. -// The lower the number, the higher the priority. 10 is the default and -// several formatting filters run at or around 6. -add_filter('the_content', 'wp_syntax_before_filter', 0); -add_filter('the_excerpt', 'wp_syntax_before_filter', 0); -add_filter('comment_text', 'wp_syntax_before_filter', 0); - -// We want to run after other filters; hence, a priority of 99. -add_filter('the_content', 'wp_syntax_after_filter', 99); -add_filter('the_excerpt', 'wp_syntax_after_filter', 99); -add_filter('comment_text', 'wp_syntax_after_filter', 99); - -?> + /** + * The main function responsible for returning the WP_Syntax instance + * to functions everywhere. + * + * Use this function like you would a global variable, except without needing + * to declare the global. + * + * Example: <?php $wp_syntex = WP_Syntax(); ?> + * + * @access public + * @since 1.0 + * @return mixed (object) + */ + function WP_Syntax() { + return WP_Syntax::getInstance(); + } + + /** + * Start the plugin. + */ + add_action( 'plugins_loaded', 'WP_Syntax' ); + +}
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