From 53f3d54ad354a5f1b20b93d533305d5ed7b5c940 Mon Sep 17 00:00:00 2001 From: Hypolite Petovan Date: Sun, 14 Jan 2018 10:05:51 -0500 Subject: [PATCH] Add michelf/php-markdown to Composer --- composer.json | 3 +- composer.lock | 55 +- vendor/composer/ClassLoader.php | 4 +- vendor/composer/autoload_classmap.php | 4 + vendor/composer/autoload_files.php | 2 +- vendor/composer/autoload_namespaces.php | 1 + vendor/composer/autoload_real.php | 2 +- vendor/composer/autoload_static.php | 13 +- vendor/composer/include_paths.php | 10 +- vendor/composer/installed.json | 751 ++++--- vendor/michelf/php-markdown/License.md | 36 + .../php-markdown/Michelf/Markdown.inc.php | 10 + .../michelf/php-markdown/Michelf/Markdown.php | 1896 +++++++++++++++++ .../Michelf/MarkdownExtra.inc.php | 11 + .../php-markdown/Michelf/MarkdownExtra.php | 1785 ++++++++++++++++ .../Michelf/MarkdownInterface.inc.php | 9 + .../Michelf/MarkdownInterface.php | 38 + vendor/michelf/php-markdown/Readme.md | 384 ++++ vendor/michelf/php-markdown/Readme.php | 31 + vendor/michelf/php-markdown/composer.json | 31 + vendor/pear-pear.php.net/PEAR/bin/pear.bat | 6 +- vendor/pear-pear.php.net/PEAR/bin/peardev.bat | 6 +- vendor/pear-pear.php.net/PEAR/bin/pecl.bat | 6 +- vendor/pear-pear.php.net/PEAR/pearcmd.php | 4 +- vendor/pear-pear.php.net/PEAR/peclcmd.php | 4 +- .../Text_Highlighter/bin/generate.bat | 2 +- vendor/pear/text_languagedetect/phpcs.xml | 16 +- 27 files changed, 4736 insertions(+), 384 deletions(-) create mode 100644 vendor/michelf/php-markdown/License.md create mode 100644 vendor/michelf/php-markdown/Michelf/Markdown.inc.php create mode 100644 vendor/michelf/php-markdown/Michelf/Markdown.php create mode 100644 vendor/michelf/php-markdown/Michelf/MarkdownExtra.inc.php create mode 100644 vendor/michelf/php-markdown/Michelf/MarkdownExtra.php create mode 100644 vendor/michelf/php-markdown/Michelf/MarkdownInterface.inc.php create mode 100644 vendor/michelf/php-markdown/Michelf/MarkdownInterface.php create mode 100644 vendor/michelf/php-markdown/Readme.md create mode 100644 vendor/michelf/php-markdown/Readme.php create mode 100644 vendor/michelf/php-markdown/composer.json diff --git a/composer.json b/composer.json index 6a72c130d4..76f253401e 100644 --- a/composer.json +++ b/composer.json @@ -20,7 +20,8 @@ "pear/Text_LanguageDetect": "1.*", "pear-pear.php.net/Text_Highlighter": "*", "paragonie/random_compat": "^2.0", - "smarty/smarty": "^3.1" + "smarty/smarty": "^3.1", + "michelf/php-markdown": "^1.7" }, "repositories": [ { diff --git a/composer.lock b/composer.lock index c5a82428df..b6c4fdb324 100644 --- a/composer.lock +++ b/composer.lock @@ -4,7 +4,7 @@ "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file", "This file is @generated automatically" ], - "content-hash": "40fc48f9b1e36f9f4960eb0ccf51a3c4", + "content-hash": "9eeabb43bd9f244c3e293ae6f4a33ffc", "packages": [ { "name": "defuse/php-encryption", @@ -159,6 +159,57 @@ ], "time": "2017-03-16T00:45:59+00:00" }, + { + "name": "michelf/php-markdown", + "version": "1.7.0", + "source": { + "type": "git", + "url": "https://github.com/michelf/php-markdown.git", + "reference": "1f51cc520948f66cd2af8cbc45a5ee175e774220" + }, + "dist": { + "type": "zip", + "url": "https://api.github.com/repos/michelf/php-markdown/zipball/1f51cc520948f66cd2af8cbc45a5ee175e774220", + "reference": "1f51cc520948f66cd2af8cbc45a5ee175e774220", + "shasum": "" + }, + "require": { + "php": ">=5.3.0" + }, + "type": "library", + "extra": { + "branch-alias": { + "dev-lib": "1.4.x-dev" + } + }, + "autoload": { + "psr-0": { + "Michelf": "" + } + }, + "notification-url": "https://packagist.org/downloads/", + "license": [ + "BSD-3-Clause" + ], + "authors": [ + { + "name": "Michel Fortin", + "email": "michel.fortin@michelf.ca", + "homepage": "https://michelf.ca/", + "role": "Developer" + }, + { + "name": "John Gruber", + "homepage": "https://daringfireball.net/" + } + ], + "description": "PHP Markdown", + "homepage": "https://michelf.ca/projects/php-markdown/", + "keywords": [ + "markdown" + ], + "time": "2016-10-29T18:58:20+00:00" + }, { "name": "mobiledetect/mobiledetectlib", "version": "2.8.30", @@ -315,7 +366,7 @@ "license": [ "BSD-2-Clause" ], - "description": "This is a PHP implementation of \"getopt\" supporting both\nshort and long options." + "description": "This is a PHP implementation of "getopt" supporting both\nshort and long options." }, { "name": "pear-pear.php.net/PEAR", diff --git a/vendor/composer/ClassLoader.php b/vendor/composer/ClassLoader.php index 2c72175e77..dc02dfb114 100644 --- a/vendor/composer/ClassLoader.php +++ b/vendor/composer/ClassLoader.php @@ -379,9 +379,9 @@ class ClassLoader $subPath = substr($subPath, 0, $lastPos); $search = $subPath.'\\'; if (isset($this->prefixDirsPsr4[$search])) { + $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1); foreach ($this->prefixDirsPsr4[$search] as $dir) { - $length = $this->prefixLengthsPsr4[$first][$search]; - if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) { + if (file_exists($file = $dir . $pathEnd)) { return $file; } } diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php index 20d9db7f3a..5452b91627 100644 --- a/vendor/composer/autoload_classmap.php +++ b/vendor/composer/autoload_classmap.php @@ -22,6 +22,7 @@ return array( 'Friendica\\Core\\NotificationsManager' => $baseDir . '/src/Core/NotificationsManager.php', 'Friendica\\Core\\PConfig' => $baseDir . '/src/Core/PConfig.php', 'Friendica\\Core\\System' => $baseDir . '/src/Core/System.php', + 'Friendica\\Core\\UserImport' => $baseDir . '/src/Core/UserImport.php', 'Friendica\\Core\\Worker' => $baseDir . '/src/Core/Worker.php', 'Friendica\\Database\\DBM' => $baseDir . '/src/Database/DBM.php', 'Friendica\\Database\\DBStructure' => $baseDir . '/src/Database/DBStructure.php', @@ -354,6 +355,9 @@ return array( 'League\\HTMLToMarkdown\\ElementInterface' => $vendorDir . '/league/html-to-markdown/src/ElementInterface.php', 'League\\HTMLToMarkdown\\Environment' => $vendorDir . '/league/html-to-markdown/src/Environment.php', 'League\\HTMLToMarkdown\\HtmlConverter' => $vendorDir . '/league/html-to-markdown/src/HtmlConverter.php', + 'Michelf\\Markdown' => $vendorDir . '/michelf/php-markdown/Michelf/Markdown.php', + 'Michelf\\MarkdownExtra' => $vendorDir . '/michelf/php-markdown/Michelf/MarkdownExtra.php', + 'Michelf\\MarkdownInterface' => $vendorDir . '/michelf/php-markdown/Michelf/MarkdownInterface.php', 'Mobile_Detect' => $vendorDir . '/mobiledetect/mobiledetectlib/Mobile_Detect.php', 'OS_Guess' => $vendorDir . '/pear-pear.php.net/PEAR/OS/Guess.php', 'PEAR' => $vendorDir . '/pear-pear.php.net/PEAR/PEAR.php', diff --git a/vendor/composer/autoload_files.php b/vendor/composer/autoload_files.php index df7cf3808c..355f32d4de 100644 --- a/vendor/composer/autoload_files.php +++ b/vendor/composer/autoload_files.php @@ -6,8 +6,8 @@ $vendorDir = dirname(dirname(__FILE__)); $baseDir = dirname($vendorDir); return array( - '2cffec82183ee1cea088009cef9a6fc3' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier.composer.php', '8170285c807a9f24f165f37b15bc9a36' => $vendorDir . '/defuse/php-encryption/Crypto.php', + '2cffec82183ee1cea088009cef9a6fc3' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier.composer.php', '5255c38a0faeba867671b61dfda6d864' => $vendorDir . '/paragonie/random_compat/lib/random.php', 'f084d01b0a599f67676cffef638aa95b' => $vendorDir . '/smarty/smarty/libs/bootstrap.php', ); diff --git a/vendor/composer/autoload_namespaces.php b/vendor/composer/autoload_namespaces.php index 60e5c0ff18..f96a4a6b12 100644 --- a/vendor/composer/autoload_namespaces.php +++ b/vendor/composer/autoload_namespaces.php @@ -7,6 +7,7 @@ $baseDir = dirname($vendorDir); return array( 'Text' => array($vendorDir . '/pear/text_languagedetect'), + 'Michelf' => array($vendorDir . '/michelf/php-markdown'), 'HTMLPurifier' => array($vendorDir . '/ezyang/htmlpurifier/library'), 'Detection' => array($vendorDir . '/mobiledetect/mobiledetectlib/namespaced'), ); diff --git a/vendor/composer/autoload_real.php b/vendor/composer/autoload_real.php index 890b20c064..1a9c0f9294 100644 --- a/vendor/composer/autoload_real.php +++ b/vendor/composer/autoload_real.php @@ -24,7 +24,7 @@ class ComposerAutoloaderInitFriendica spl_autoload_unregister(array('ComposerAutoloaderInitFriendica', 'loadClassLoader')); $includePaths = require __DIR__ . '/include_paths.php'; - array_push($includePaths, get_include_path()); + $includePaths[] = get_include_path(); set_include_path(implode(PATH_SEPARATOR, $includePaths)); $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION') && (!function_exists('zend_loader_file_encoded') || !zend_loader_file_encoded()); diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php index e323edbeab..7b3f23c995 100644 --- a/vendor/composer/autoload_static.php +++ b/vendor/composer/autoload_static.php @@ -7,8 +7,8 @@ namespace Composer\Autoload; class ComposerStaticInitFriendica { public static $files = array ( - '2cffec82183ee1cea088009cef9a6fc3' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier.composer.php', '8170285c807a9f24f165f37b15bc9a36' => __DIR__ . '/..' . '/defuse/php-encryption/Crypto.php', + '2cffec82183ee1cea088009cef9a6fc3' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier.composer.php', '5255c38a0faeba867671b61dfda6d864' => __DIR__ . '/..' . '/paragonie/random_compat/lib/random.php', 'f084d01b0a599f67676cffef638aa95b' => __DIR__ . '/..' . '/smarty/smarty/libs/bootstrap.php', ); @@ -43,6 +43,13 @@ class ComposerStaticInitFriendica 0 => __DIR__ . '/..' . '/pear/text_languagedetect', ), ), + 'M' => + array ( + 'Michelf' => + array ( + 0 => __DIR__ . '/..' . '/michelf/php-markdown', + ), + ), 'H' => array ( 'HTMLPurifier' => @@ -76,6 +83,7 @@ class ComposerStaticInitFriendica 'Friendica\\Core\\NotificationsManager' => __DIR__ . '/../..' . '/src/Core/NotificationsManager.php', 'Friendica\\Core\\PConfig' => __DIR__ . '/../..' . '/src/Core/PConfig.php', 'Friendica\\Core\\System' => __DIR__ . '/../..' . '/src/Core/System.php', + 'Friendica\\Core\\UserImport' => __DIR__ . '/../..' . '/src/Core/UserImport.php', 'Friendica\\Core\\Worker' => __DIR__ . '/../..' . '/src/Core/Worker.php', 'Friendica\\Database\\DBM' => __DIR__ . '/../..' . '/src/Database/DBM.php', 'Friendica\\Database\\DBStructure' => __DIR__ . '/../..' . '/src/Database/DBStructure.php', @@ -408,6 +416,9 @@ class ComposerStaticInitFriendica 'League\\HTMLToMarkdown\\ElementInterface' => __DIR__ . '/..' . '/league/html-to-markdown/src/ElementInterface.php', 'League\\HTMLToMarkdown\\Environment' => __DIR__ . '/..' . '/league/html-to-markdown/src/Environment.php', 'League\\HTMLToMarkdown\\HtmlConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/HtmlConverter.php', + 'Michelf\\Markdown' => __DIR__ . '/..' . '/michelf/php-markdown/Michelf/Markdown.php', + 'Michelf\\MarkdownExtra' => __DIR__ . '/..' . '/michelf/php-markdown/Michelf/MarkdownExtra.php', + 'Michelf\\MarkdownInterface' => __DIR__ . '/..' . '/michelf/php-markdown/Michelf/MarkdownInterface.php', 'Mobile_Detect' => __DIR__ . '/..' . '/mobiledetect/mobiledetectlib/Mobile_Detect.php', 'OS_Guess' => __DIR__ . '/..' . '/pear-pear.php.net/PEAR/OS/Guess.php', 'PEAR' => __DIR__ . '/..' . '/pear-pear.php.net/PEAR/PEAR.php', diff --git a/vendor/composer/include_paths.php b/vendor/composer/include_paths.php index a977a8b905..7a6fabadb1 100644 --- a/vendor/composer/include_paths.php +++ b/vendor/composer/include_paths.php @@ -6,12 +6,12 @@ $vendorDir = dirname(dirname(__FILE__)); $baseDir = dirname($vendorDir); return array( - $vendorDir . '/pear-pear.php.net/Console_Getopt', - $vendorDir . '/pear-pear.php.net/Structures_Graph', - $vendorDir . '/pear-pear.php.net/XML_Parser', - $vendorDir . '/pear-pear.php.net/Text_Highlighter', - $vendorDir . '/pear-pear.php.net/XML_Util', $vendorDir . '/pear-pear.php.net/Archive_Tar', + $vendorDir . '/pear-pear.php.net/Console_Getopt', $vendorDir . '/pear-pear.php.net/PEAR', + $vendorDir . '/pear-pear.php.net/Structures_Graph', + $vendorDir . '/pear-pear.php.net/Text_Highlighter', + $vendorDir . '/pear-pear.php.net/XML_Parser', + $vendorDir . '/pear-pear.php.net/XML_Util', $vendorDir . '/pear/text_languagedetect', ); diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json index bdabd2b3ac..3f8721821a 100644 --- a/vendor/composer/installed.json +++ b/vendor/composer/installed.json @@ -1,4 +1,51 @@ [ + { + "name": "defuse/php-encryption", + "version": "v1.2.1", + "version_normalized": "1.2.1.0", + "source": { + "type": "git", + "url": "https://github.com/defuse/php-encryption.git", + "reference": "b87737b2eec06b13f025cabea847338fa203d1b4" + }, + "dist": { + "type": "zip", + "url": "https://api.github.com/repos/defuse/php-encryption/zipball/b87737b2eec06b13f025cabea847338fa203d1b4", + "reference": "b87737b2eec06b13f025cabea847338fa203d1b4", + "shasum": "" + }, + "require": { + "ext-mcrypt": "*", + "ext-openssl": "*", + "php": ">=5.4.0" + }, + "time": "2015-03-14T20:27:45+00:00", + "type": "library", + "installation-source": "dist", + "autoload": { + "files": [ + "Crypto.php" + ] + }, + "notification-url": "https://packagist.org/downloads/", + "license": [ + "MIT" + ], + "authors": [ + { + "name": "Taylor Hornby", + "email": "havoc@defuse.ca" + } + ], + "description": "Secure PHP Encryption Library", + "keywords": [ + "aes", + "cipher", + "encryption", + "mcrypt", + "security" + ] + }, { "name": "ezyang/htmlpurifier", "version": "v4.7.0", @@ -45,134 +92,6 @@ "html" ] }, - { - "name": "pear-pear.php.net/Console_Getopt", - "version": "1.4.1", - "version_normalized": "1.4.1.0", - "dist": { - "type": "file", - "url": "https://pear.php.net/get/Console_Getopt-1.4.1.tgz", - "reference": null, - "shasum": null - }, - "require": { - "php": ">=5.4.0.0" - }, - "replace": { - "pear-pear/console_getopt": "== 1.4.1.0" - }, - "type": "pear-library", - "installation-source": "dist", - "autoload": { - "classmap": [ - "" - ] - }, - "include-path": [ - "/" - ], - "license": [ - "BSD-2-Clause" - ], - "description": "This is a PHP implementation of \"getopt\" supporting both\nshort and long options." - }, - { - "name": "pear-pear.php.net/Structures_Graph", - "version": "1.1.1", - "version_normalized": "1.1.1.0", - "dist": { - "type": "file", - "url": "https://pear.php.net/get/Structures_Graph-1.1.1.tgz", - "reference": null, - "shasum": null - }, - "require": { - "php": ">=5.3.0.0" - }, - "replace": { - "pear-pear/structures_graph": "== 1.1.1.0" - }, - "type": "pear-library", - "installation-source": "dist", - "autoload": { - "classmap": [ - "" - ] - }, - "include-path": [ - "/" - ], - "license": [ - "LGPL-3.0+" - ], - "description": "Structures_Graph is a package for creating and manipulating graph datastructures. It allows building of directed\nand undirected graphs, with data and metadata stored in nodes. The library provides functions for graph traversing\nas well as for characteristic extraction from the graph topology." - }, - { - "name": "pear-pear.php.net/XML_Parser", - "version": "1.3.7", - "version_normalized": "1.3.7.0", - "dist": { - "type": "file", - "url": "https://pear.php.net/get/XML_Parser-1.3.7.tgz", - "reference": null, - "shasum": null - }, - "require": { - "pear-pear.php.net/pear": "*", - "php": ">=4.2.0.0" - }, - "replace": { - "pear-pear/xml_parser": "== 1.3.7.0" - }, - "type": "pear-library", - "installation-source": "dist", - "autoload": { - "classmap": [ - "" - ] - }, - "include-path": [ - "/" - ], - "license": [ - "BSD License" - ], - "description": "This is an XML parser based on PHPs built-in xml extension.\nIt supports two basic modes of operation: \"func\" and \"event\". In \"func\" mode, it will look for a function named after each element (xmltag_ELEMENT for start tags and xmltag_ELEMENT_ for end tags), and in \"event\" mode it uses a set of generic callbacks.\n\nSince version 1.2.0 there's a new XML_Parser_Simple class that makes parsing of most XML documents easier, by automatically providing a stack for the elements.\nFurthermore its now possible to split the parser from the handler object, so you do not have to extend XML_Parser anymore in order to parse a document with it." - }, - { - "name": "pear-pear.php.net/Text_Highlighter", - "version": "0.8.0", - "version_normalized": "0.8.0.0", - "dist": { - "type": "file", - "url": "https://pear.php.net/get/Text_Highlighter-0.8.0.tgz", - "reference": null, - "shasum": null - }, - "require": { - "pear-pear.php.net/console_getopt": ">=1.4.1.0", - "pear-pear.php.net/pear": ">=1.10.3.0", - "pear-pear.php.net/xml_parser": ">=1.3.7.0", - "php": ">=5.4.0.0" - }, - "replace": { - "pear-pear/text_highlighter": "== 0.8.0.0" - }, - "type": "pear-library", - "installation-source": "dist", - "autoload": { - "classmap": [ - "" - ] - }, - "include-path": [ - "/" - ], - "license": [ - "PHP License" - ], - "description": "Text_Highlighter is a package for syntax highlighting.\n\nIt provides a base class provining all the functionality,\nand a descendent classes geneator class.\n\nThe main idea is to simplify creation of subclasses\nimplementing syntax highlighting for particular language.\nSubclasses do not implement any new functioanality,\nthey just provide syntax highlighting rules.\nThe rules sources are in XML format.\n\nTo create a highlighter for a language, there is no need\nto code a new class manually. Simply describe the rules\nin XML file and use Text_Highlighter_Generator to create\na new class." - }, { "name": "league/html-to-markdown", "version": "4.4.1", @@ -240,250 +159,56 @@ ] }, { - "name": "pear-pear.php.net/XML_Util", - "version": "1.4.3", - "version_normalized": "1.4.3.0", - "dist": { - "type": "file", - "url": "https://pear.php.net/get/XML_Util-1.4.3.tgz", - "reference": null, - "shasum": null - }, - "require": { - "ext-pcre": "*", - "php": ">=5.4.0.0" - }, - "replace": { - "pear-pear/xml_util": "== 1.4.3.0" - }, - "type": "pear-library", - "installation-source": "dist", - "autoload": { - "classmap": [ - "" - ] - }, - "include-path": [ - "/" - ], - "license": [ - "BSD License" - ], - "description": "Selection of methods that are often needed when working with XML documents. Functionality includes creating of attribute lists from arrays, creation of tags, validation of XML names and more." - }, - { - "name": "pear-pear.php.net/Archive_Tar", - "version": "1.4.3", - "version_normalized": "1.4.3.0", - "dist": { - "type": "file", - "url": "https://pear.php.net/get/Archive_Tar-1.4.3.tgz", - "reference": null, - "shasum": null - }, - "require": { - "php": ">=5.2.0.0" - }, - "replace": { - "pear-pear/archive_tar": "== 1.4.3.0" - }, - "type": "pear-library", - "installation-source": "dist", - "autoload": { - "classmap": [ - "" - ] - }, - "include-path": [ - "/" - ], - "license": [ - "New BSD License" - ], - "description": "This class provides handling of tar files in PHP.\nIt supports creating, listing, extracting and adding to tar files.\nGzip support is available if PHP has the zlib extension built-in or\nloaded. Bz2 compression is also supported with the bz2 extension loaded." - }, - { - "name": "pear-pear.php.net/PEAR", - "version": "1.10.5", - "version_normalized": "1.10.5.0", - "dist": { - "type": "file", - "url": "https://pear.php.net/get/PEAR-1.10.5.tgz", - "reference": null, - "shasum": null - }, - "require": { - "ext-pcre": "*", - "ext-xml": "*", - "pear-pear.php.net/archive_tar": ">=1.4.0.0", - "pear-pear.php.net/console_getopt": ">=1.4.1.0", - "pear-pear.php.net/structures_graph": ">=1.1.0.0", - "pear-pear.php.net/xml_util": ">=1.3.0.0", - "php": ">=5.4.0.0" - }, - "conflict": { - "pear-pear.php.net/pear_frontend_gtk": "<0.4.0.0", - "pear-pear.php.net/pear_frontend_web": "<=0.4.0.0" - }, - "replace": { - "pear-pear/pear": "== 1.10.5.0" - }, - "type": "pear-library", - "installation-source": "dist", - "autoload": { - "classmap": [ - "" - ] - }, - "include-path": [ - "/" - ], - "license": [ - "New BSD License" - ], - "description": "The PEAR package contains:\n * the PEAR installer, for creating, distributing\n and installing packages\n * the PEAR_Exception PHP5 error handling mechanism\n * the PEAR_ErrorStack advanced error handling mechanism\n * the PEAR_Error error handling mechanism\n * the OS_Guess class for retrieving info about the OS\n where PHP is running on\n * the System class for quick handling of common operations\n with files and directories\n * the PEAR base class\n Features in a nutshell:\n * full support for channels\n * pre-download dependency validation\n * new package.xml 2.0 format allows tremendous flexibility while maintaining BC\n * support for optional dependency groups and limited support for sub-packaging\n * robust dependency support\n * full dependency validation on uninstall\n * remote install for hosts with only ftp access - no more problems with\n restricted host installation\n * full support for mirroring\n * support for bundling several packages into a single tarball\n * support for static dependencies on a url-based package\n * support for custom file roles and installation tasks" - }, - { - "name": "pear/text_languagedetect", - "version": "v1.0.0", - "version_normalized": "1.0.0.0", + "name": "michelf/php-markdown", + "version": "1.7.0", + "version_normalized": "1.7.0.0", "source": { "type": "git", - "url": "https://github.com/pear/Text_LanguageDetect.git", - "reference": "bb9ff6f4970f686fac59081e916b456021fe7ba6" + "url": "https://github.com/michelf/php-markdown.git", + "reference": "1f51cc520948f66cd2af8cbc45a5ee175e774220" }, "dist": { "type": "zip", - "url": "https://api.github.com/repos/pear/Text_LanguageDetect/zipball/bb9ff6f4970f686fac59081e916b456021fe7ba6", - "reference": "bb9ff6f4970f686fac59081e916b456021fe7ba6", + "url": "https://api.github.com/repos/michelf/php-markdown/zipball/1f51cc520948f66cd2af8cbc45a5ee175e774220", + "reference": "1f51cc520948f66cd2af8cbc45a5ee175e774220", "shasum": "" }, - "require-dev": { - "phpunit/phpunit": "*" + "require": { + "php": ">=5.3.0" }, - "suggest": { - "ext-mbstring": "May require the mbstring PHP extension" - }, - "time": "2017-03-02T16:14:08+00:00", + "time": "2016-10-29T18:58:20+00:00", "type": "library", + "extra": { + "branch-alias": { + "dev-lib": "1.4.x-dev" + } + }, "installation-source": "dist", "autoload": { "psr-0": { - "Text": "./" + "Michelf": "" } }, "notification-url": "https://packagist.org/downloads/", - "include-path": [ - "./" - ], "license": [ - "BSD-2-Clause" + "BSD-3-Clause" ], "authors": [ { - "name": "Nicholas Pisarro", - "email": "taak@php.net", - "role": "Lead" - } - ], - "description": "Identify human languages from text samples", - "homepage": "http://pear.php.net/package/Text_LanguageDetect" - }, - { - "name": "defuse/php-encryption", - "version": "v1.2.1", - "version_normalized": "1.2.1.0", - "source": { - "type": "git", - "url": "https://github.com/defuse/php-encryption.git", - "reference": "b87737b2eec06b13f025cabea847338fa203d1b4" - }, - "dist": { - "type": "zip", - "url": "https://api.github.com/repos/defuse/php-encryption/zipball/b87737b2eec06b13f025cabea847338fa203d1b4", - "reference": "b87737b2eec06b13f025cabea847338fa203d1b4", - "shasum": "" - }, - "require": { - "ext-mcrypt": "*", - "ext-openssl": "*", - "php": ">=5.4.0" - }, - "time": "2015-03-14T20:27:45+00:00", - "type": "library", - "installation-source": "dist", - "autoload": { - "files": [ - "Crypto.php" - ] - }, - "notification-url": "https://packagist.org/downloads/", - "license": [ - "MIT" - ], - "authors": [ + "name": "Michel Fortin", + "email": "michel.fortin@michelf.ca", + "homepage": "https://michelf.ca/", + "role": "Developer" + }, { - "name": "Taylor Hornby", - "email": "havoc@defuse.ca" + "name": "John Gruber", + "homepage": "https://daringfireball.net/" } ], - "description": "Secure PHP Encryption Library", + "description": "PHP Markdown", + "homepage": "https://michelf.ca/projects/php-markdown/", "keywords": [ - "aes", - "cipher", - "encryption", - "mcrypt", - "security" - ] - }, - { - "name": "paragonie/random_compat", - "version": "v2.0.11", - "version_normalized": "2.0.11.0", - "source": { - "type": "git", - "url": "https://github.com/paragonie/random_compat.git", - "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8" - }, - "dist": { - "type": "zip", - "url": "https://api.github.com/repos/paragonie/random_compat/zipball/5da4d3c796c275c55f057af5a643ae297d96b4d8", - "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8", - "shasum": "" - }, - "require": { - "php": ">=5.2.0" - }, - "require-dev": { - "phpunit/phpunit": "4.*|5.*" - }, - "suggest": { - "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes." - }, - "time": "2017-09-27T21:40:39+00:00", - "type": "library", - "installation-source": "dist", - "autoload": { - "files": [ - "lib/random.php" - ] - }, - "notification-url": "https://packagist.org/downloads/", - "license": [ - "MIT" - ], - "authors": [ - { - "name": "Paragon Initiative Enterprises", - "email": "security@paragonie.com", - "homepage": "https://paragonie.com" - } - ], - "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7", - "keywords": [ - "csprng", - "pseudorandom", - "random" + "markdown" ] }, { @@ -540,6 +265,334 @@ "php mobile detect" ] }, + { + "name": "paragonie/random_compat", + "version": "v2.0.11", + "version_normalized": "2.0.11.0", + "source": { + "type": "git", + "url": "https://github.com/paragonie/random_compat.git", + "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8" + }, + "dist": { + "type": "zip", + "url": "https://api.github.com/repos/paragonie/random_compat/zipball/5da4d3c796c275c55f057af5a643ae297d96b4d8", + "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8", + "shasum": "" + }, + "require": { + "php": ">=5.2.0" + }, + "require-dev": { + "phpunit/phpunit": "4.*|5.*" + }, + "suggest": { + "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes." + }, + "time": "2017-09-27T21:40:39+00:00", + "type": "library", + "installation-source": "dist", + "autoload": { + "files": [ + "lib/random.php" + ] + }, + "notification-url": "https://packagist.org/downloads/", + "license": [ + "MIT" + ], + "authors": [ + { + "name": "Paragon Initiative Enterprises", + "email": "security@paragonie.com", + "homepage": "https://paragonie.com" + } + ], + "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7", + "keywords": [ + "csprng", + "pseudorandom", + "random" + ] + }, + { + "name": "pear-pear.php.net/Archive_Tar", + "version": "1.4.3", + "version_normalized": "1.4.3.0", + "dist": { + "type": "file", + "url": "https://pear.php.net/get/Archive_Tar-1.4.3.tgz", + "reference": null, + "shasum": null + }, + "require": { + "php": ">=5.2.0.0" + }, + "replace": { + "pear-pear/archive_tar": "== 1.4.3.0" + }, + "type": "pear-library", + "installation-source": "dist", + "autoload": { + "classmap": [ + "" + ] + }, + "include-path": [ + "/" + ], + "license": [ + "New BSD License" + ], + "description": "This class provides handling of tar files in PHP.\nIt supports creating, listing, extracting and adding to tar files.\nGzip support is available if PHP has the zlib extension built-in or\nloaded. Bz2 compression is also supported with the bz2 extension loaded." + }, + { + "name": "pear-pear.php.net/Console_Getopt", + "version": "1.4.1", + "version_normalized": "1.4.1.0", + "dist": { + "type": "file", + "url": "https://pear.php.net/get/Console_Getopt-1.4.1.tgz", + "reference": null, + "shasum": null + }, + "require": { + "php": ">=5.4.0.0" + }, + "replace": { + "pear-pear/console_getopt": "== 1.4.1.0" + }, + "type": "pear-library", + "installation-source": "dist", + "autoload": { + "classmap": [ + "" + ] + }, + "include-path": [ + "/" + ], + "license": [ + "BSD-2-Clause" + ], + "description": "This is a PHP implementation of "getopt" supporting both\nshort and long options." + }, + { + "name": "pear-pear.php.net/PEAR", + "version": "1.10.5", + "version_normalized": "1.10.5.0", + "dist": { + "type": "file", + "url": "https://pear.php.net/get/PEAR-1.10.5.tgz", + "reference": null, + "shasum": null + }, + "require": { + "ext-pcre": "*", + "ext-xml": "*", + "pear-pear.php.net/archive_tar": ">=1.4.0.0", + "pear-pear.php.net/console_getopt": ">=1.4.1.0", + "pear-pear.php.net/structures_graph": ">=1.1.0.0", + "pear-pear.php.net/xml_util": ">=1.3.0.0", + "php": ">=5.4.0.0" + }, + "conflict": { + "pear-pear.php.net/pear_frontend_gtk": "<0.4.0.0", + "pear-pear.php.net/pear_frontend_web": "<=0.4.0.0" + }, + "replace": { + "pear-pear/pear": "== 1.10.5.0" + }, + "type": "pear-library", + "installation-source": "dist", + "autoload": { + "classmap": [ + "" + ] + }, + "include-path": [ + "/" + ], + "license": [ + "New BSD License" + ], + "description": "The PEAR package contains:\n * the PEAR installer, for creating, distributing\n and installing packages\n * the PEAR_Exception PHP5 error handling mechanism\n * the PEAR_ErrorStack advanced error handling mechanism\n * the PEAR_Error error handling mechanism\n * the OS_Guess class for retrieving info about the OS\n where PHP is running on\n * the System class for quick handling of common operations\n with files and directories\n * the PEAR base class\n Features in a nutshell:\n * full support for channels\n * pre-download dependency validation\n * new package.xml 2.0 format allows tremendous flexibility while maintaining BC\n * support for optional dependency groups and limited support for sub-packaging\n * robust dependency support\n * full dependency validation on uninstall\n * remote install for hosts with only ftp access - no more problems with\n restricted host installation\n * full support for mirroring\n * support for bundling several packages into a single tarball\n * support for static dependencies on a url-based package\n * support for custom file roles and installation tasks" + }, + { + "name": "pear-pear.php.net/Structures_Graph", + "version": "1.1.1", + "version_normalized": "1.1.1.0", + "dist": { + "type": "file", + "url": "https://pear.php.net/get/Structures_Graph-1.1.1.tgz", + "reference": null, + "shasum": null + }, + "require": { + "php": ">=5.3.0.0" + }, + "replace": { + "pear-pear/structures_graph": "== 1.1.1.0" + }, + "type": "pear-library", + "installation-source": "dist", + "autoload": { + "classmap": [ + "" + ] + }, + "include-path": [ + "/" + ], + "license": [ + "LGPL-3.0+" + ], + "description": "Structures_Graph is a package for creating and manipulating graph datastructures. It allows building of directed\nand undirected graphs, with data and metadata stored in nodes. The library provides functions for graph traversing\nas well as for characteristic extraction from the graph topology." + }, + { + "name": "pear-pear.php.net/Text_Highlighter", + "version": "0.8.0", + "version_normalized": "0.8.0.0", + "dist": { + "type": "file", + "url": "https://pear.php.net/get/Text_Highlighter-0.8.0.tgz", + "reference": null, + "shasum": null + }, + "require": { + "pear-pear.php.net/console_getopt": ">=1.4.1.0", + "pear-pear.php.net/pear": ">=1.10.3.0", + "pear-pear.php.net/xml_parser": ">=1.3.7.0", + "php": ">=5.4.0.0" + }, + "replace": { + "pear-pear/text_highlighter": "== 0.8.0.0" + }, + "type": "pear-library", + "installation-source": "dist", + "autoload": { + "classmap": [ + "" + ] + }, + "include-path": [ + "/" + ], + "license": [ + "PHP License" + ], + "description": "Text_Highlighter is a package for syntax highlighting.\n\nIt provides a base class provining all the functionality,\nand a descendent classes geneator class.\n\nThe main idea is to simplify creation of subclasses\nimplementing syntax highlighting for particular language.\nSubclasses do not implement any new functioanality,\nthey just provide syntax highlighting rules.\nThe rules sources are in XML format.\n\nTo create a highlighter for a language, there is no need\nto code a new class manually. Simply describe the rules\nin XML file and use Text_Highlighter_Generator to create\na new class." + }, + { + "name": "pear-pear.php.net/XML_Parser", + "version": "1.3.7", + "version_normalized": "1.3.7.0", + "dist": { + "type": "file", + "url": "https://pear.php.net/get/XML_Parser-1.3.7.tgz", + "reference": null, + "shasum": null + }, + "require": { + "pear-pear.php.net/pear": "*", + "php": ">=4.2.0.0" + }, + "replace": { + "pear-pear/xml_parser": "== 1.3.7.0" + }, + "type": "pear-library", + "installation-source": "dist", + "autoload": { + "classmap": [ + "" + ] + }, + "include-path": [ + "/" + ], + "license": [ + "BSD License" + ], + "description": "This is an XML parser based on PHPs built-in xml extension.\nIt supports two basic modes of operation: \"func\" and \"event\". In \"func\" mode, it will look for a function named after each element (xmltag_ELEMENT for start tags and xmltag_ELEMENT_ for end tags), and in \"event\" mode it uses a set of generic callbacks.\n\nSince version 1.2.0 there's a new XML_Parser_Simple class that makes parsing of most XML documents easier, by automatically providing a stack for the elements.\nFurthermore its now possible to split the parser from the handler object, so you do not have to extend XML_Parser anymore in order to parse a document with it." + }, + { + "name": "pear-pear.php.net/XML_Util", + "version": "1.4.3", + "version_normalized": "1.4.3.0", + "dist": { + "type": "file", + "url": "https://pear.php.net/get/XML_Util-1.4.3.tgz", + "reference": null, + "shasum": null + }, + "require": { + "ext-pcre": "*", + "php": ">=5.4.0.0" + }, + "replace": { + "pear-pear/xml_util": "== 1.4.3.0" + }, + "type": "pear-library", + "installation-source": "dist", + "autoload": { + "classmap": [ + "" + ] + }, + "include-path": [ + "/" + ], + "license": [ + "BSD License" + ], + "description": "Selection of methods that are often needed when working with XML documents. Functionality includes creating of attribute lists from arrays, creation of tags, validation of XML names and more." + }, + { + "name": "pear/text_languagedetect", + "version": "v1.0.0", + "version_normalized": "1.0.0.0", + "source": { + "type": "git", + "url": "https://github.com/pear/Text_LanguageDetect.git", + "reference": "bb9ff6f4970f686fac59081e916b456021fe7ba6" + }, + "dist": { + "type": "zip", + "url": "https://api.github.com/repos/pear/Text_LanguageDetect/zipball/bb9ff6f4970f686fac59081e916b456021fe7ba6", + "reference": "bb9ff6f4970f686fac59081e916b456021fe7ba6", + "shasum": "" + }, + "require-dev": { + "phpunit/phpunit": "*" + }, + "suggest": { + "ext-mbstring": "May require the mbstring PHP extension" + }, + "time": "2017-03-02T16:14:08+00:00", + "type": "library", + "installation-source": "dist", + "autoload": { + "psr-0": { + "Text": "./" + } + }, + "notification-url": "https://packagist.org/downloads/", + "include-path": [ + "./" + ], + "license": [ + "BSD-2-Clause" + ], + "authors": [ + { + "name": "Nicholas Pisarro", + "email": "taak@php.net", + "role": "Lead" + } + ], + "description": "Identify human languages from text samples", + "homepage": "http://pear.php.net/package/Text_LanguageDetect" + }, { "name": "smarty/smarty", "version": "v3.1.31", diff --git a/vendor/michelf/php-markdown/License.md b/vendor/michelf/php-markdown/License.md new file mode 100644 index 0000000000..c16197b692 --- /dev/null +++ b/vendor/michelf/php-markdown/License.md @@ -0,0 +1,36 @@ +PHP Markdown Lib +Copyright (c) 2004-2016 Michel Fortin + +All rights reserved. + +Based on Markdown +Copyright (c) 2003-2006 John Gruber + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +* Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +* Neither the name "Markdown" nor the names of its contributors may + be used to endorse or promote products derived from this software + without specific prior written permission. + +This software is provided by the copyright holders and contributors "as +is" and any express or implied warranties, including, but not limited +to, the implied warranties of merchantability and fitness for a +particular purpose are disclaimed. In no event shall the copyright owner +or contributors be liable for any direct, indirect, incidental, special, +exemplary, or consequential damages (including, but not limited to, +procurement of substitute goods or services; loss of use, data, or +profits; or business interruption) however caused and on any theory of +liability, whether in contract, strict liability, or tort (including +negligence or otherwise) arising in any way out of the use of this +software, even if advised of the possibility of such damage. diff --git a/vendor/michelf/php-markdown/Michelf/Markdown.inc.php b/vendor/michelf/php-markdown/Michelf/Markdown.inc.php new file mode 100644 index 0000000000..e2bd3808e8 --- /dev/null +++ b/vendor/michelf/php-markdown/Michelf/Markdown.inc.php @@ -0,0 +1,10 @@ + + * @copyright 2004-2016 Michel Fortin + * @copyright (Original Markdown) 2004-2006 John Gruber + */ + +namespace Michelf; + +/** + * Markdown Parser Class + */ +class Markdown implements MarkdownInterface { + /** + * Define the package version + * @var string + */ + const MARKDOWNLIB_VERSION = "1.7.0"; + + /** + * Simple function interface - Initialize the parser and return the result + * of its transform method. This will work fine for derived classes too. + * + * @api + * + * @param string $text + * @return string + */ + public static function defaultTransform($text) { + // Take parser class on which this function was called. + $parser_class = \get_called_class(); + + // Try to take parser from the static parser list + static $parser_list; + $parser =& $parser_list[$parser_class]; + + // Create the parser it not already set + if (!$parser) { + $parser = new $parser_class; + } + + // Transform text using parser. + return $parser->transform($text); + } + + /** + * Configuration variables + */ + + /** + * Change to ">" for HTML output. + * @var string + */ + public $empty_element_suffix = " />"; + + /** + * The width of indentation of the output markup + * @var int + */ + public $tab_width = 4; + + /** + * Change to `true` to disallow markup or entities. + * @var boolean + */ + public $no_markup = false; + public $no_entities = false; + + + /** + * Change to `true` to enable line breaks on \n without two trailling spaces + * @var boolean + */ + public $hard_wrap = false; + + /** + * Predefined URLs and titles for reference links and images. + * @var array + */ + public $predef_urls = array(); + public $predef_titles = array(); + + /** + * Optional filter function for URLs + * @var callable + */ + public $url_filter_func = null; + + /** + * Optional header id="" generation callback function. + * @var callable + */ + public $header_id_func = null; + + /** + * Optional function for converting code block content to HTML + * @var callable + */ + public $code_block_content_func = null; + + /** + * Optional function for converting code span content to HTML. + * @var callable + */ + public $code_span_content_func = null; + + /** + * Class attribute to toggle "enhanced ordered list" behaviour + * setting this to true will allow ordered lists to start from the index + * number that is defined first. + * + * For example: + * 2. List item two + * 3. List item three + * + * Becomes: + *
    + *
  1. List item two
    2. + *
  2. List item three
    3. + *
+ * + * @var bool + */ + public $enhanced_ordered_list = false; + + /** + * Parser implementation + */ + + /** + * Regex to match balanced [brackets]. + * Needed to insert a maximum bracked depth while converting to PHP. + * @var int + */ + protected $nested_brackets_depth = 6; + protected $nested_brackets_re; + + protected $nested_url_parenthesis_depth = 4; + protected $nested_url_parenthesis_re; + + /** + * Table of hash values for escaped characters: + * @var string + */ + protected $escape_chars = '\`*_{}[]()>#+-.!'; + protected $escape_chars_re; + + /** + * Constructor function. Initialize appropriate member variables. + * @return void + */ + public function __construct() { + $this->_initDetab(); + $this->prepareItalicsAndBold(); + + $this->nested_brackets_re = + str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth). + str_repeat('\])*', $this->nested_brackets_depth); + + $this->nested_url_parenthesis_re = + str_repeat('(?>[^()\s]+|\(', $this->nested_url_parenthesis_depth). + str_repeat('(?>\)))*', $this->nested_url_parenthesis_depth); + + $this->escape_chars_re = '['.preg_quote($this->escape_chars).']'; + + // Sort document, block, and span gamut in ascendent priority order. + asort($this->document_gamut); + asort($this->block_gamut); + asort($this->span_gamut); + } + + + /** + * Internal hashes used during transformation. + * @var array + */ + protected $urls = array(); + protected $titles = array(); + protected $html_hashes = array(); + + /** + * Status flag to avoid invalid nesting. + * @var boolean + */ + protected $in_anchor = false; + + /** + * Called before the transformation process starts to setup parser states. + * @return void + */ + protected function setup() { + // Clear global hashes. + $this->urls = $this->predef_urls; + $this->titles = $this->predef_titles; + $this->html_hashes = array(); + $this->in_anchor = false; + } + + /** + * Called after the transformation process to clear any variable which may + * be taking up memory unnecessarly. + * @return void + */ + protected function teardown() { + $this->urls = array(); + $this->titles = array(); + $this->html_hashes = array(); + } + + /** + * Main function. Performs some preprocessing on the input text and pass + * it through the document gamut. + * + * @api + * + * @param string $text + * @return string + */ + public function transform($text) { + $this->setup(); + + # Remove UTF-8 BOM and marker character in input, if present. + $text = preg_replace('{^\xEF\xBB\xBF|\x1A}', '', $text); + + # Standardize line endings: + # DOS to Unix and Mac to Unix + $text = preg_replace('{\r\n?}', "\n", $text); + + # Make sure $text ends with a couple of newlines: + $text .= "\n\n"; + + # Convert all tabs to spaces. + $text = $this->detab($text); + + # Turn block-level HTML blocks into hash entries + $text = $this->hashHTMLBlocks($text); + + # Strip any lines consisting only of spaces and tabs. + # This makes subsequent regexen easier to write, because we can + # match consecutive blank lines with /\n+/ instead of something + # contorted like /[ ]*\n+/ . + $text = preg_replace('/^[ ]+$/m', '', $text); + + # Run document gamut methods. + foreach ($this->document_gamut as $method => $priority) { + $text = $this->$method($text); + } + + $this->teardown(); + + return $text . "\n"; + } + + /** + * Define the document gamut + * @var array + */ + protected $document_gamut = array( + // Strip link definitions, store in hashes. + "stripLinkDefinitions" => 20, + "runBasicBlockGamut" => 30, + ); + + /** + * Strips link definitions from text, stores the URLs and titles in + * hash references + * @param string $text + * @return string + */ + protected function stripLinkDefinitions($text) { + + $less_than_tab = $this->tab_width - 1; + + // Link defs are in the form: ^[id]: url "optional title" + $text = preg_replace_callback('{ + ^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?: # id = $1 + [ ]* + \n? # maybe *one* newline + [ ]* + (?: + <(.+?)> # url = $2 + | + (\S+?) # url = $3 + ) + [ ]* + \n? # maybe one newline + [ ]* + (?: + (?<=\s) # lookbehind for whitespace + ["(] + (.*?) # title = $4 + [")] + [ ]* + )? # title is optional + (?:\n+|\Z) + }xm', + array($this, '_stripLinkDefinitions_callback'), + $text + ); + return $text; + } + + /** + * The callback to strip link definitions + * @param array $matches + * @return string + */ + protected function _stripLinkDefinitions_callback($matches) { + $link_id = strtolower($matches[1]); + $url = $matches[2] == '' ? $matches[3] : $matches[2]; + $this->urls[$link_id] = $url; + $this->titles[$link_id] =& $matches[4]; + return ''; // String that will replace the block + } + + /** + * Hashify HTML blocks + * @param string $text + * @return string + */ + protected function hashHTMLBlocks($text) { + if ($this->no_markup) { + return $text; + } + + $less_than_tab = $this->tab_width - 1; + + /** + * Hashify HTML blocks: + * + * We only want to do this for block-level HTML tags, such as headers, + * lists, and tables. That's because we still want to wrap

s around + * "paragraphs" that are wrapped in non-block-level tags, such as + * anchors, phrase emphasis, and spans. The list of tags we're looking + * for is hard-coded: + * + * * List "a" is made of tags which can be both inline or block-level. + * These will be treated block-level when the start tag is alone on + * its line, otherwise they're not matched here and will be taken as + * inline later. + * * List "b" is made of tags which are always block-level; + */ + $block_tags_a_re = 'ins|del'; + $block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|'. + 'script|noscript|style|form|fieldset|iframe|math|svg|'. + 'article|section|nav|aside|hgroup|header|footer|'. + 'figure'; + + // Regular expression for the content of a block tag. + $nested_tags_level = 4; + $attr = ' + (?> # optional tag attributes + \s # starts with whitespace + (?> + [^>"/]+ # text outside quotes + | + /+(?!>) # slash not followed by ">" + | + "[^"]*" # text inside double quotes (tolerate ">") + | + \'[^\']*\' # text inside single quotes (tolerate ">") + )* + )? + '; + $content = + str_repeat(' + (?> + [^<]+ # content without tag + | + <\2 # nested opening tag + '.$attr.' # attributes + (?> + /> + | + >', $nested_tags_level). // end of opening tag + '.*?'. // last level nested tag content + str_repeat(' + # closing nested tag + ) + | + <(?!/\2\s*> # other tags with a different name + ) + )*', + $nested_tags_level); + $content2 = str_replace('\2', '\3', $content); + + /** + * First, look for nested blocks, e.g.: + *

+ *
+ * tags for inner block must be indented. + *
+ *
+ * + * The outermost tags must start at the left margin for this to match, + * and the inner nested divs must be indented. + * We need to do this before the next, more liberal match, because the + * next match will start at the first `
` and stop at the + * first `
`. + */ + $text = preg_replace_callback('{(?> + (?> + (?<=\n) # Starting on its own line + | # or + \A\n? # the at beginning of the doc + ) + ( # save in $1 + + # Match from `\n` to `\n`, handling nested tags + # in between. + + [ ]{0,'.$less_than_tab.'} + <('.$block_tags_b_re.')# start tag = $2 + '.$attr.'> # attributes followed by > and \n + '.$content.' # content, support nesting + # the matching end tag + [ ]* # trailing spaces/tabs + (?=\n+|\Z) # followed by a newline or end of document + + | # Special version for tags of group a. + + [ ]{0,'.$less_than_tab.'} + <('.$block_tags_a_re.')# start tag = $3 + '.$attr.'>[ ]*\n # attributes followed by > + '.$content2.' # content, support nesting + # the matching end tag + [ ]* # trailing spaces/tabs + (?=\n+|\Z) # followed by a newline or end of document + + | # Special case just for
. It was easier to make a special + # case than to make the other regex more complicated. + + [ ]{0,'.$less_than_tab.'} + <(hr) # start tag = $2 + '.$attr.' # attributes + /?> # the matching end tag + [ ]* + (?=\n{2,}|\Z) # followed by a blank line or end of document + + | # Special case for standalone HTML comments: + + [ ]{0,'.$less_than_tab.'} + (?s: + + ) + [ ]* + (?=\n{2,}|\Z) # followed by a blank line or end of document + + | # PHP and ASP-style processor instructions ( + ) + [ ]* + (?=\n{2,}|\Z) # followed by a blank line or end of document + + ) + )}Sxmi', + array($this, '_hashHTMLBlocks_callback'), + $text + ); + + return $text; + } + + /** + * The callback for hashing HTML blocks + * @param string $matches + * @return string + */ + protected function _hashHTMLBlocks_callback($matches) { + $text = $matches[1]; + $key = $this->hashBlock($text); + return "\n\n$key\n\n"; + } + + /** + * Called whenever a tag must be hashed when a function insert an atomic + * element in the text stream. Passing $text to through this function gives + * a unique text-token which will be reverted back when calling unhash. + * + * The $boundary argument specify what character should be used to surround + * the token. By convension, "B" is used for block elements that needs not + * to be wrapped into paragraph tags at the end, ":" is used for elements + * that are word separators and "X" is used in the general case. + * + * @param string $text + * @param string $boundary + * @return string + */ + protected function hashPart($text, $boundary = 'X') { + // Swap back any tag hash found in $text so we do not have to `unhash` + // multiple times at the end. + $text = $this->unhash($text); + + // Then hash the block. + static $i = 0; + $key = "$boundary\x1A" . ++$i . $boundary; + $this->html_hashes[$key] = $text; + return $key; // String that will replace the tag. + } + + /** + * Shortcut function for hashPart with block-level boundaries. + * @param string $text + * @return string + */ + protected function hashBlock($text) { + return $this->hashPart($text, 'B'); + } + + /** + * Define the block gamut - these are all the transformations that form + * block-level tags like paragraphs, headers, and list items. + * @var array + */ + protected $block_gamut = array( + "doHeaders" => 10, + "doHorizontalRules" => 20, + "doLists" => 40, + "doCodeBlocks" => 50, + "doBlockQuotes" => 60, + ); + + /** + * Run block gamut tranformations. + * + * We need to escape raw HTML in Markdown source before doing anything + * else. This need to be done for each block, and not only at the + * begining in the Markdown function since hashed blocks can be part of + * list items and could have been indented. Indented blocks would have + * been seen as a code block in a previous pass of hashHTMLBlocks. + * + * @param string $text + * @return string + */ + protected function runBlockGamut($text) { + $text = $this->hashHTMLBlocks($text); + return $this->runBasicBlockGamut($text); + } + + /** + * Run block gamut tranformations, without hashing HTML blocks. This is + * useful when HTML blocks are known to be already hashed, like in the first + * whole-document pass. + * + * @param string $text + * @return string + */ + protected function runBasicBlockGamut($text) { + + foreach ($this->block_gamut as $method => $priority) { + $text = $this->$method($text); + } + + // Finally form paragraph and restore hashed blocks. + $text = $this->formParagraphs($text); + + return $text; + } + + /** + * Convert horizontal rules + * @param string $text + * @return string + */ + protected function doHorizontalRules($text) { + return preg_replace( + '{ + ^[ ]{0,3} # Leading space + ([-*_]) # $1: First marker + (?> # Repeated marker group + [ ]{0,2} # Zero, one, or two spaces. + \1 # Marker character + ){2,} # Group repeated at least twice + [ ]* # Tailing spaces + $ # End of line. + }mx', + "\n".$this->hashBlock("empty_element_suffix")."\n", + $text + ); + } + + /** + * These are all the transformations that occur *within* block-level + * tags like paragraphs, headers, and list items. + * @var array + */ + protected $span_gamut = array( + // Process character escapes, code spans, and inline HTML + // in one shot. + "parseSpan" => -30, + // Process anchor and image tags. Images must come first, + // because ![foo][f] looks like an anchor. + "doImages" => 10, + "doAnchors" => 20, + // Make links out of things like `` + // Must come after doAnchors, because you can use < and > + // delimiters in inline links like [this](). + "doAutoLinks" => 30, + "encodeAmpsAndAngles" => 40, + "doItalicsAndBold" => 50, + "doHardBreaks" => 60, + ); + + /** + * Run span gamut transformations + * @param string $text + * @return string + */ + protected function runSpanGamut($text) { + foreach ($this->span_gamut as $method => $priority) { + $text = $this->$method($text); + } + + return $text; + } + + /** + * Do hard breaks + * @param string $text + * @return string + */ + protected function doHardBreaks($text) { + if ($this->hard_wrap) { + return preg_replace_callback('/ *\n/', + array($this, '_doHardBreaks_callback'), $text); + } else { + return preg_replace_callback('/ {2,}\n/', + array($this, '_doHardBreaks_callback'), $text); + } + } + + /** + * Trigger part hashing for the hard break (callback method) + * @param array $matches + * @return string + */ + protected function _doHardBreaks_callback($matches) { + return $this->hashPart("empty_element_suffix\n"); + } + + /** + * Turn Markdown link shortcuts into XHTML tags. + * @param string $text + * @return string + */ + protected function doAnchors($text) { + if ($this->in_anchor) { + return $text; + } + $this->in_anchor = true; + + // First, handle reference-style links: [link text] [id] + $text = preg_replace_callback('{ + ( # wrap whole match in $1 + \[ + ('.$this->nested_brackets_re.') # link text = $2 + \] + + [ ]? # one optional space + (?:\n[ ]*)? # one optional newline followed by spaces + + \[ + (.*?) # id = $3 + \] + ) + }xs', + array($this, '_doAnchors_reference_callback'), $text); + + // Next, inline-style links: [link text](url "optional title") + $text = preg_replace_callback('{ + ( # wrap whole match in $1 + \[ + ('.$this->nested_brackets_re.') # link text = $2 + \] + \( # literal paren + [ \n]* + (?: + <(.+?)> # href = $3 + | + ('.$this->nested_url_parenthesis_re.') # href = $4 + ) + [ \n]* + ( # $5 + ([\'"]) # quote char = $6 + (.*?) # Title = $7 + \6 # matching quote + [ \n]* # ignore any spaces/tabs between closing quote and ) + )? # title is optional + \) + ) + }xs', + array($this, '_doAnchors_inline_callback'), $text); + + // Last, handle reference-style shortcuts: [link text] + // These must come last in case you've also got [link text][1] + // or [link text](/foo) + $text = preg_replace_callback('{ + ( # wrap whole match in $1 + \[ + ([^\[\]]+) # link text = $2; can\'t contain [ or ] + \] + ) + }xs', + array($this, '_doAnchors_reference_callback'), $text); + + $this->in_anchor = false; + return $text; + } + + /** + * Callback method to parse referenced anchors + * @param string $matches + * @return string + */ + protected function _doAnchors_reference_callback($matches) { + $whole_match = $matches[1]; + $link_text = $matches[2]; + $link_id =& $matches[3]; + + if ($link_id == "") { + // for shortcut links like [this][] or [this]. + $link_id = $link_text; + } + + // lower-case and turn embedded newlines into spaces + $link_id = strtolower($link_id); + $link_id = preg_replace('{[ ]?\n}', ' ', $link_id); + + if (isset($this->urls[$link_id])) { + $url = $this->urls[$link_id]; + $url = $this->encodeURLAttribute($url); + + $result = "titles[$link_id] ) ) { + $title = $this->titles[$link_id]; + $title = $this->encodeAttribute($title); + $result .= " title=\"$title\""; + } + + $link_text = $this->runSpanGamut($link_text); + $result .= ">$link_text"; + $result = $this->hashPart($result); + } else { + $result = $whole_match; + } + return $result; + } + + /** + * Callback method to parse inline anchors + * @param string $matches + * @return string + */ + protected function _doAnchors_inline_callback($matches) { + $whole_match = $matches[1]; + $link_text = $this->runSpanGamut($matches[2]); + $url = $matches[3] == '' ? $matches[4] : $matches[3]; + $title =& $matches[7]; + + // If the URL was of the form it got caught by the HTML + // tag parser and hashed. Need to reverse the process before using + // the URL. + $unhashed = $this->unhash($url); + if ($unhashed != $url) + $url = preg_replace('/^<(.*)>$/', '\1', $unhashed); + + $url = $this->encodeURLAttribute($url); + + $result = "encodeAttribute($title); + $result .= " title=\"$title\""; + } + + $link_text = $this->runSpanGamut($link_text); + $result .= ">$link_text"; + + return $this->hashPart($result); + } + + /** + * Turn Markdown image shortcuts into tags. + * @param string $text + * @return string + */ + protected function doImages($text) { + // First, handle reference-style labeled images: ![alt text][id] + $text = preg_replace_callback('{ + ( # wrap whole match in $1 + !\[ + ('.$this->nested_brackets_re.') # alt text = $2 + \] + + [ ]? # one optional space + (?:\n[ ]*)? # one optional newline followed by spaces + + \[ + (.*?) # id = $3 + \] + + ) + }xs', + array($this, '_doImages_reference_callback'), $text); + + // Next, handle inline images: ![alt text](url "optional title") + // Don't forget: encode * and _ + $text = preg_replace_callback('{ + ( # wrap whole match in $1 + !\[ + ('.$this->nested_brackets_re.') # alt text = $2 + \] + \s? # One optional whitespace character + \( # literal paren + [ \n]* + (?: + <(\S*)> # src url = $3 + | + ('.$this->nested_url_parenthesis_re.') # src url = $4 + ) + [ \n]* + ( # $5 + ([\'"]) # quote char = $6 + (.*?) # title = $7 + \6 # matching quote + [ \n]* + )? # title is optional + \) + ) + }xs', + array($this, '_doImages_inline_callback'), $text); + + return $text; + } + + /** + * Callback to parse references image tags + * @param array $matches + * @return string + */ + protected function _doImages_reference_callback($matches) { + $whole_match = $matches[1]; + $alt_text = $matches[2]; + $link_id = strtolower($matches[3]); + + if ($link_id == "") { + $link_id = strtolower($alt_text); // for shortcut links like ![this][]. + } + + $alt_text = $this->encodeAttribute($alt_text); + if (isset($this->urls[$link_id])) { + $url = $this->encodeURLAttribute($this->urls[$link_id]); + $result = "\"$alt_text\"";titles[$link_id])) { + $title = $this->titles[$link_id]; + $title = $this->encodeAttribute($title); + $result .= " title=\"$title\""; + } + $result .= $this->empty_element_suffix; + $result = $this->hashPart($result); + } else { + // If there's no such link ID, leave intact: + $result = $whole_match; + } + + return $result; + } + + /** + * Callback to parse inline image tags + * @param array $matches + * @return string + */ + protected function _doImages_inline_callback($matches) { + $whole_match = $matches[1]; + $alt_text = $matches[2]; + $url = $matches[3] == '' ? $matches[4] : $matches[3]; + $title =& $matches[7]; + + $alt_text = $this->encodeAttribute($alt_text); + $url = $this->encodeURLAttribute($url); + $result = "\"$alt_text\"";encodeAttribute($title); + $result .= " title=\"$title\""; // $title already quoted + } + $result .= $this->empty_element_suffix; + + return $this->hashPart($result); + } + + /** + * Parse Markdown heading elements to HTML + * @param string $text + * @return string + */ + protected function doHeaders($text) { + /** + * Setext-style headers: + * Header 1 + * ======== + * + * Header 2 + * -------- + */ + $text = preg_replace_callback('{ ^(.+?)[ ]*\n(=+|-+)[ ]*\n+ }mx', + array($this, '_doHeaders_callback_setext'), $text); + + /** + * atx-style headers: + * # Header 1 + * ## Header 2 + * ## Header 2 with closing hashes ## + * ... + * ###### Header 6 + */ + $text = preg_replace_callback('{ + ^(\#{1,6}) # $1 = string of #\'s + [ ]* + (.+?) # $2 = Header text + [ ]* + \#* # optional closing #\'s (not counted) + \n+ + }xm', + array($this, '_doHeaders_callback_atx'), $text); + + return $text; + } + + /** + * Setext header parsing callback + * @param array $matches + * @return string + */ + protected function _doHeaders_callback_setext($matches) { + // Terrible hack to check we haven't found an empty list item. + if ($matches[2] == '-' && preg_match('{^-(?: |$)}', $matches[1])) { + return $matches[0]; + } + + $level = $matches[2]{0} == '=' ? 1 : 2; + + // ID attribute generation + $idAtt = $this->_generateIdFromHeaderValue($matches[1]); + + $block = "".$this->runSpanGamut($matches[1]).""; + return "\n" . $this->hashBlock($block) . "\n\n"; + } + + /** + * ATX header parsing callback + * @param array $matches + * @return string + */ + protected function _doHeaders_callback_atx($matches) { + // ID attribute generation + $idAtt = $this->_generateIdFromHeaderValue($matches[2]); + + $level = strlen($matches[1]); + $block = "".$this->runSpanGamut($matches[2]).""; + return "\n" . $this->hashBlock($block) . "\n\n"; + } + + /** + * If a header_id_func property is set, we can use it to automatically + * generate an id attribute. + * + * This method returns a string in the form id="foo", or an empty string + * otherwise. + * @param string $headerValue + * @return string + */ + protected function _generateIdFromHeaderValue($headerValue) { + if (!is_callable($this->header_id_func)) { + return ""; + } + + $idValue = call_user_func($this->header_id_func, $headerValue); + if (!$idValue) { + return ""; + } + + return ' id="' . $this->encodeAttribute($idValue) . '"'; + } + + /** + * Form HTML ordered (numbered) and unordered (bulleted) lists. + * @param string $text + * @return string + */ + protected function doLists($text) { + $less_than_tab = $this->tab_width - 1; + + // Re-usable patterns to match list item bullets and number markers: + $marker_ul_re = '[*+-]'; + $marker_ol_re = '\d+[\.]'; + + $markers_relist = array( + $marker_ul_re => $marker_ol_re, + $marker_ol_re => $marker_ul_re, + ); + + foreach ($markers_relist as $marker_re => $other_marker_re) { + // Re-usable pattern to match any entirel ul or ol list: + $whole_list_re = ' + ( # $1 = whole list + ( # $2 + ([ ]{0,'.$less_than_tab.'}) # $3 = number of spaces + ('.$marker_re.') # $4 = first list item marker + [ ]+ + ) + (?s:.+?) + ( # $5 + \z + | + \n{2,} + (?=\S) + (?! # Negative lookahead for another list item marker + [ ]* + '.$marker_re.'[ ]+ + ) + | + (?= # Lookahead for another kind of list + \n + \3 # Must have the same indentation + '.$other_marker_re.'[ ]+ + ) + ) + ) + '; // mx + + // We use a different prefix before nested lists than top-level lists. + //See extended comment in _ProcessListItems(). + + if ($this->list_level) { + $text = preg_replace_callback('{ + ^ + '.$whole_list_re.' + }mx', + array($this, '_doLists_callback'), $text); + } else { + $text = preg_replace_callback('{ + (?:(?<=\n)\n|\A\n?) # Must eat the newline + '.$whole_list_re.' + }mx', + array($this, '_doLists_callback'), $text); + } + } + + return $text; + } + + /** + * List parsing callback + * @param array $matches + * @return string + */ + protected function _doLists_callback($matches) { + // Re-usable patterns to match list item bullets and number markers: + $marker_ul_re = '[*+-]'; + $marker_ol_re = '\d+[\.]'; + $marker_any_re = "(?:$marker_ul_re|$marker_ol_re)"; + $marker_ol_start_re = '[0-9]+'; + + $list = $matches[1]; + $list_type = preg_match("/$marker_ul_re/", $matches[4]) ? "ul" : "ol"; + + $marker_any_re = ( $list_type == "ul" ? $marker_ul_re : $marker_ol_re ); + + $list .= "\n"; + $result = $this->processListItems($list, $marker_any_re); + + $ol_start = 1; + if ($this->enhanced_ordered_list) { + // Get the start number for ordered list. + if ($list_type == 'ol') { + $ol_start_array = array(); + $ol_start_check = preg_match("/$marker_ol_start_re/", $matches[4], $ol_start_array); + if ($ol_start_check){ + $ol_start = $ol_start_array[0]; + } + } + } + + if ($ol_start > 1 && $list_type == 'ol'){ + $result = $this->hashBlock("<$list_type start=\"$ol_start\">\n" . $result . ""); + } else { + $result = $this->hashBlock("<$list_type>\n" . $result . ""); + } + return "\n". $result ."\n\n"; + } + + /** + * Nesting tracker for list levels + * @var integer + */ + protected $list_level = 0; + + /** + * Process the contents of a single ordered or unordered list, splitting it + * into individual list items. + * @param string $list_str + * @param string $marker_any_re + * @return string + */ + protected function processListItems($list_str, $marker_any_re) { + /** + * The $this->list_level global keeps track of when we're inside a list. + * Each time we enter a list, we increment it; when we leave a list, + * we decrement. If it's zero, we're not in a list anymore. + * + * We do this because when we're not inside a list, we want to treat + * something like this: + * + * I recommend upgrading to version + * 8. Oops, now this line is treated + * as a sub-list. + * + * As a single paragraph, despite the fact that the second line starts + * with a digit-period-space sequence. + * + * Whereas when we're inside a list (or sub-list), that line will be + * treated as the start of a sub-list. What a kludge, huh? This is + * an aspect of Markdown's syntax that's hard to parse perfectly + * without resorting to mind-reading. Perhaps the solution is to + * change the syntax rules such that sub-lists must start with a + * starting cardinal number; e.g. "1." or "a.". + */ + $this->list_level++; + + // Trim trailing blank lines: + $list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str); + + $list_str = preg_replace_callback('{ + (\n)? # leading line = $1 + (^[ ]*) # leading whitespace = $2 + ('.$marker_any_re.' # list marker and space = $3 + (?:[ ]+|(?=\n)) # space only required if item is not empty + ) + ((?s:.*?)) # list item text = $4 + (?:(\n+(?=\n))|\n) # tailing blank line = $5 + (?= \n* (\z | \2 ('.$marker_any_re.') (?:[ ]+|(?=\n)))) + }xm', + array($this, '_processListItems_callback'), $list_str); + + $this->list_level--; + return $list_str; + } + + /** + * List item parsing callback + * @param array $matches + * @return string + */ + protected function _processListItems_callback($matches) { + $item = $matches[4]; + $leading_line =& $matches[1]; + $leading_space =& $matches[2]; + $marker_space = $matches[3]; + $tailing_blank_line =& $matches[5]; + + if ($leading_line || $tailing_blank_line || + preg_match('/\n{2,}/', $item)) + { + // Replace marker with the appropriate whitespace indentation + $item = $leading_space . str_repeat(' ', strlen($marker_space)) . $item; + $item = $this->runBlockGamut($this->outdent($item)."\n"); + } else { + // Recursion for sub-lists: + $item = $this->doLists($this->outdent($item)); + $item = $this->formParagraphs($item, false); + } + + return "
  • " . $item . "
    • \n"; + } + + /** + * Process Markdown `
    ` blocks.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doCodeBlocks($text) {
+		$text = preg_replace_callback('{
+				(?:\n\n|\A\n?)
+				(	            # $1 = the code block -- one or more lines, starting with a space/tab
+				  (?>
+					[ ]{'.$this->tab_width.'}  # Lines must start with a tab or a tab-width of spaces
+					.*\n+
+				  )+
+				)
+				((?=^[ ]{0,'.$this->tab_width.'}\S)|\Z)	# Lookahead for non-space at line-start, or end of doc
+			}xm',
+			array($this, '_doCodeBlocks_callback'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Code block parsing callback
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doCodeBlocks_callback($matches) {
+		$codeblock = $matches[1];
+
+		$codeblock = $this->outdent($codeblock);
+		if ($this->code_block_content_func) {
+			$codeblock = call_user_func($this->code_block_content_func, $codeblock, "");
+		} else {
+			$codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
+		}
+
+		# trim leading newlines and trailing newlines
+		$codeblock = preg_replace('/\A\n+|\n+\z/', '', $codeblock);
+
+		$codeblock = "
    $codeblock\n
    ";
+		return "\n\n" . $this->hashBlock($codeblock) . "\n\n";
+	}
+
+	/**
+	 * Create a code span markup for $code. Called from handleSpanToken.
+	 * @param  string $code
+	 * @return string
+	 */
+	protected function makeCodeSpan($code) {
+		if ($this->code_span_content_func) {
+			$code = call_user_func($this->code_span_content_func, $code);
+		} else {
+			$code = htmlspecialchars(trim($code), ENT_NOQUOTES);
+		}
+		return $this->hashPart("$code");
+	}
+
+	/**
+	 * Define the emphasis operators with their regex matches
+	 * @var array
+	 */
+	protected $em_relist = array(
+		''  => '(?:(? '(? '(? '(?:(? '(? '(? '(?:(? '(? '(?em_relist as $em => $em_re) {
+			foreach ($this->strong_relist as $strong => $strong_re) {
+				// Construct list of allowed token expressions.
+				$token_relist = array();
+				if (isset($this->em_strong_relist["$em$strong"])) {
+					$token_relist[] = $this->em_strong_relist["$em$strong"];
+				}
+				$token_relist[] = $em_re;
+				$token_relist[] = $strong_re;
+				
+				// Construct master expression from list.
+				$token_re = '{(' . implode('|', $token_relist) . ')}';
+				$this->em_strong_prepared_relist["$em$strong"] = $token_re;
+			}
+		}
+	}
+
+	/**
+	 * Convert Markdown italics (emphasis) and bold (strong) to HTML
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doItalicsAndBold($text) {
+		$token_stack = array('');
+		$text_stack = array('');
+		$em = '';
+		$strong = '';
+		$tree_char_em = false;
+		
+		while (1) {
+			// Get prepared regular expression for seraching emphasis tokens
+			// in current context.
+			$token_re = $this->em_strong_prepared_relist["$em$strong"];
+			
+			// Each loop iteration search for the next emphasis token. 
+			// Each token is then passed to handleSpanToken.
+			$parts = preg_split($token_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
+			$text_stack[0] .= $parts[0];
+			$token =& $parts[1];
+			$text =& $parts[2];
+			
+			if (empty($token)) {
+				// Reached end of text span: empty stack without emitting.
+				// any more emphasis.
+				while ($token_stack[0]) {
+					$text_stack[1] .= array_shift($token_stack);
+					$text_stack[0] .= array_shift($text_stack);
+				}
+				break;
+			}
+			
+			$token_len = strlen($token);
+			if ($tree_char_em) {
+				// Reached closing marker while inside a three-char emphasis.
+				if ($token_len == 3) {
+					// Three-char closing marker, close em and strong.
+					array_shift($token_stack);
+					$span = array_shift($text_stack);
+					$span = $this->runSpanGamut($span);
+					$span = "$span";
+					$text_stack[0] .= $this->hashPart($span);
+					$em = '';
+					$strong = '';
+				} else {
+					// Other closing marker: close one em or strong and
+					// change current token state to match the other
+					$token_stack[0] = str_repeat($token{0}, 3-$token_len);
+					$tag = $token_len == 2 ? "strong" : "em";
+					$span = $text_stack[0];
+					$span = $this->runSpanGamut($span);
+					$span = "<$tag>$span";
+					$text_stack[0] = $this->hashPart($span);
+					$$tag = ''; // $$tag stands for $em or $strong
+				}
+				$tree_char_em = false;
+			} else if ($token_len == 3) {
+				if ($em) {
+					// Reached closing marker for both em and strong.
+					// Closing strong marker:
+					for ($i = 0; $i < 2; ++$i) {
+						$shifted_token = array_shift($token_stack);
+						$tag = strlen($shifted_token) == 2 ? "strong" : "em";
+						$span = array_shift($text_stack);
+						$span = $this->runSpanGamut($span);
+						$span = "<$tag>$span";
+						$text_stack[0] .= $this->hashPart($span);
+						$$tag = ''; // $$tag stands for $em or $strong
+					}
+				} else {
+					// Reached opening three-char emphasis marker. Push on token 
+					// stack; will be handled by the special condition above.
+					$em = $token{0};
+					$strong = "$em$em";
+					array_unshift($token_stack, $token);
+					array_unshift($text_stack, '');
+					$tree_char_em = true;
+				}
+			} else if ($token_len == 2) {
+				if ($strong) {
+					// Unwind any dangling emphasis marker:
+					if (strlen($token_stack[0]) == 1) {
+						$text_stack[1] .= array_shift($token_stack);
+						$text_stack[0] .= array_shift($text_stack);
+					}
+					// Closing strong marker:
+					array_shift($token_stack);
+					$span = array_shift($text_stack);
+					$span = $this->runSpanGamut($span);
+					$span = "$span";
+					$text_stack[0] .= $this->hashPart($span);
+					$strong = '';
+				} else {
+					array_unshift($token_stack, $token);
+					array_unshift($text_stack, '');
+					$strong = $token;
+				}
+			} else {
+				// Here $token_len == 1
+				if ($em) {
+					if (strlen($token_stack[0]) == 1) {
+						// Closing emphasis marker:
+						array_shift($token_stack);
+						$span = array_shift($text_stack);
+						$span = $this->runSpanGamut($span);
+						$span = "$span";
+						$text_stack[0] .= $this->hashPart($span);
+						$em = '';
+					} else {
+						$text_stack[0] .= $token;
+					}
+				} else {
+					array_unshift($token_stack, $token);
+					array_unshift($text_stack, '');
+					$em = $token;
+				}
+			}
+		}
+		return $text_stack[0];
+	}
+
+	/**
+	 * Parse Markdown blockquotes to HTML
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doBlockQuotes($text) {
+		$text = preg_replace_callback('/
+			  (								# Wrap whole match in $1
+				(?>
+				  ^[ ]*>[ ]?			# ">" at the start of a line
+					.+\n					# rest of the first line
+				  (.+\n)*					# subsequent consecutive lines
+				  \n*						# blanks
+				)+
+			  )
+			/xm',
+			array($this, '_doBlockQuotes_callback'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Blockquote parsing callback
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doBlockQuotes_callback($matches) {
+		$bq = $matches[1];
+		// trim one level of quoting - trim whitespace-only lines
+		$bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq);
+		$bq = $this->runBlockGamut($bq); // recurse
+
+		$bq = preg_replace('/^/m', "  ", $bq);
+		// These leading spaces cause problem with 
     content, 
+		// so we need to fix that:
+		$bq = preg_replace_callback('{(\s*
    .+?
    )}sx', 
+			array($this, '_doBlockQuotes_callback2'), $bq);
+
+		return "\n" . $this->hashBlock("
    \n$bq\n
    ") . "\n\n";
+	}
+
+	/**
+	 * Blockquote parsing callback
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doBlockQuotes_callback2($matches) {
+		$pre = $matches[1];
+		$pre = preg_replace('/^  /m', '', $pre);
+		return $pre;
+	}
+
+	/**
+	 * Parse paragraphs
+	 *
+	 * @param  string $text String to process in paragraphs
+	 * @param  boolean $wrap_in_p Whether paragraphs should be wrapped in 
     tags
+	 * @return string
+	 */
+	protected function formParagraphs($text, $wrap_in_p = true) {
+		// Strip leading and trailing lines:
+		$text = preg_replace('/\A\n+|\n+\z/', '', $text);
+
+		$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
+
+		// Wrap 
     tags and unhashify HTML blocks
+		foreach ($grafs as $key => $value) {
+			if (!preg_match('/^B\x1A[0-9]+B$/', $value)) {
+				// Is a paragraph.
+				$value = $this->runSpanGamut($value);
+				if ($wrap_in_p) {
+					$value = preg_replace('/^([ ]*)/', "
    ", $value);
+					$value .= "
    ";
+				}
+				$grafs[$key] = $this->unhash($value);
+			} else {
+				// Is a block.
+				// Modify elements of @grafs in-place...
+				$graf = $value;
+				$block = $this->html_hashes[$graf];
+				$graf = $block;
+//				if (preg_match('{
+//					\A
+//					(							# $1 = 
     tag
+//					  
    ]*
+//					  \b
+//					  markdown\s*=\s*  ([\'"])	#	$2 = attr quote char
+//					  1
+//					  \2
+//					  [^>]*
+//					  >
+//					)
+//					(							# $3 = contents
+//					.*
+//					)
+//					(
    )					# $4 = closing tag
+//					\z
+//					}xs', $block, $matches))
+//				{
+//					list(, $div_open, , $div_content, $div_close) = $matches;
+//
+//					// We can't call Markdown(), because that resets the hash;
+//					// that initialization code should be pulled into its own sub, though.
+//					$div_content = $this->hashHTMLBlocks($div_content);
+//					
+//					// Run document gamut methods on the content.
+//					foreach ($this->document_gamut as $method => $priority) {
+//						$div_content = $this->$method($div_content);
+//					}
+//
+//					$div_open = preg_replace(
+//						'{\smarkdown\s*=\s*([\'"]).+?\1}', '', $div_open);
+//
+//					$graf = $div_open . "\n" . $div_content . "\n" . $div_close;
+//				}
+				$grafs[$key] = $graf;
+			}
+		}
+
+		return implode("\n\n", $grafs);
+	}
+
+	/**
+	 * Encode text for a double-quoted HTML attribute. This function
+	 * is *not* suitable for attributes enclosed in single quotes.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function encodeAttribute($text) {
+		$text = $this->encodeAmpsAndAngles($text);
+		$text = str_replace('"', '"', $text);
+		return $text;
+	}
+
+	/**
+	 * Encode text for a double-quoted HTML attribute containing a URL,
+	 * applying the URL filter if set. Also generates the textual
+	 * representation for the URL (removing mailto: or tel:) storing it in $text.
+	 * This function is *not* suitable for attributes enclosed in single quotes.
+	 *
+	 * @param  string $url
+	 * @param  string &$text Passed by reference
+	 * @return string        URL
+	 */
+	protected function encodeURLAttribute($url, &$text = null) {
+		if ($this->url_filter_func) {
+			$url = call_user_func($this->url_filter_func, $url);
+		}
+
+		if (preg_match('{^mailto:}i', $url)) {
+			$url = $this->encodeEntityObfuscatedAttribute($url, $text, 7);
+		} else if (preg_match('{^tel:}i', $url)) {
+			$url = $this->encodeAttribute($url);
+			$text = substr($url, 4);
+		} else {
+			$url = $this->encodeAttribute($url);
+			$text = $url;
+		}
+
+		return $url;
+	}
+	
+	/**
+	 * Smart processing for ampersands and angle brackets that need to 
+	 * be encoded. Valid character entities are left alone unless the
+	 * no-entities mode is set.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function encodeAmpsAndAngles($text) {
+		if ($this->no_entities) {
+			$text = str_replace('&', '&', $text);
+		} else {
+			// Ampersand-encoding based entirely on Nat Irons's Amputator
+			// MT plugin: 
+			$text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/', 
+								'&', $text);
+		}
+		// Encode remaining <'s
+		$text = str_replace('<', '<', $text);
+
+		return $text;
+	}
+
+	/**
+	 * Parse Markdown automatic links to anchor HTML tags
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doAutoLinks($text) {
+		$text = preg_replace_callback('{<((https?|ftp|dict|tel):[^\'">\s]+)>}i',
+			array($this, '_doAutoLinks_url_callback'), $text);
+
+		// Email addresses: 
+		$text = preg_replace_callback('{
+			<
+			(?:mailto:)?
+			(
+				(?:
+					[-!#$%&\'*+/=?^_`.{|}~\w\x80-\xFF]+
+				|
+					".*?"
+				)
+				\@
+				(?:
+					[-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+
+				|
+					\[[\d.a-fA-F:]+\]	# IPv4 & IPv6
+				)
+			)
+			>
+			}xi',
+			array($this, '_doAutoLinks_email_callback'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Parse URL callback
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doAutoLinks_url_callback($matches) {
+		$url = $this->encodeURLAttribute($matches[1], $text);
+		$link = "$text";
+		return $this->hashPart($link);
+	}
+
+	/**
+	 * Parse email address callback
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doAutoLinks_email_callback($matches) {
+		$addr = $matches[1];
+		$url = $this->encodeURLAttribute("mailto:$addr", $text);
+		$link = "$text";
+		return $this->hashPart($link);
+	}
+
+	/**
+	 * Input: some text to obfuscate, e.g. "mailto:foo@example.com"
+	 *
+	 * Output: the same text but with most characters encoded as either a
+	 *         decimal or hex entity, in the hopes of foiling most address
+	 *         harvesting spam bots. E.g.:
+	 *
+	 *        mailto:foo
+	 *        @example.co
+	 *        m
+	 *
+	 * Note: the additional output $tail is assigned the same value as the
+	 * ouput, minus the number of characters specified by $head_length.
+	 *
+	 * Based by a filter by Matthew Wickline, posted to BBEdit-Talk.
+	 * With some optimizations by Milian Wolff. Forced encoding of HTML
+	 * attribute special characters by Allan Odgaard.
+	 *
+	 * @param  string  $text
+	 * @param  string  &$tail
+	 * @param  integer $head_length
+	 * @return string
+	 */
+	protected function encodeEntityObfuscatedAttribute($text, &$tail = null, $head_length = 0) {
+		if ($text == "") {
+			return $tail = "";
+		}
+
+		$chars = preg_split('/(? $char) {
+			$ord = ord($char);
+			// Ignore non-ascii chars.
+			if ($ord < 128) {
+				$r = ($seed * (1 + $key)) % 100; // Pseudo-random function.
+				// roughly 10% raw, 45% hex, 45% dec
+				// '@' *must* be encoded. I insist.
+				// '"' and '>' have to be encoded inside the attribute
+				if ($r > 90 && strpos('@"&>', $char) === false) {
+					/* do nothing */
+				} else if ($r < 45) {
+					$chars[$key] = '&#x'.dechex($ord).';';
+				} else {
+					$chars[$key] = '&#'.$ord.';';
+				}
+			}
+		}
+
+		$text = implode('', $chars);
+		$tail = $head_length ? implode('', array_slice($chars, $head_length)) : $text;
+
+		return $text;
+	}
+
+	/**
+	 * Take the string $str and parse it into tokens, hashing embeded HTML,
+	 * escaped characters and handling code spans.
+	 * @param  string $str
+	 * @return string
+	 */
+	protected function parseSpan($str) {
+		$output = '';
+		
+		$span_re = '{
+				(
+					\\\\'.$this->escape_chars_re.'
+				|
+					(?no_markup ? '' : '
+				|
+							# comment
+				|
+					<\?.*?\?> | <%.*?%>		# processing instruction
+				|
+					<[!$]?[-a-zA-Z0-9:_]+	# regular tags
+					(?>
+						\s
+						(?>[^"\'>]+|"[^"]*"|\'[^\']*\')*
+					)?
+					>
+				|
+					<[-a-zA-Z0-9:_]+\s*/> # xml-style empty tag
+				|
+					 # closing tag
+			').'
+				)
+				}xs';
+
+		while (1) {
+			// Each loop iteration seach for either the next tag, the next 
+			// openning code span marker, or the next escaped character. 
+			// Each token is then passed to handleSpanToken.
+			$parts = preg_split($span_re, $str, 2, PREG_SPLIT_DELIM_CAPTURE);
+			
+			// Create token from text preceding tag.
+			if ($parts[0] != "") {
+				$output .= $parts[0];
+			}
+			
+			// Check if we reach the end.
+			if (isset($parts[1])) {
+				$output .= $this->handleSpanToken($parts[1], $parts[2]);
+				$str = $parts[2];
+			} else {
+				break;
+			}
+		}
+		
+		return $output;
+	}
+
+	/**
+	 * Handle $token provided by parseSpan by determining its nature and
+	 * returning the corresponding value that should replace it.
+	 * @param  string $token
+	 * @param  string &$str
+	 * @return string
+	 */
+	protected function handleSpanToken($token, &$str) {
+		switch ($token{0}) {
+			case "\\":
+				return $this->hashPart("&#". ord($token{1}). ";");
+			case "`":
+				// Search for end marker in remaining text.
+				if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm', 
+					$str, $matches))
+				{
+					$str = $matches[2];
+					$codespan = $this->makeCodeSpan($matches[1]);
+					return $this->hashPart($codespan);
+				}
+				return $token; // Return as text since no ending marker found.
+			default:
+				return $this->hashPart($token);
+		}
+	}
+
+	/**
+	 * Remove one level of line-leading tabs or spaces
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function outdent($text) {
+		return preg_replace('/^(\t|[ ]{1,' . $this->tab_width . '})/m', '', $text);
+	}
+
+
+	/**
+	 * String length function for detab. `_initDetab` will create a function to
+	 * handle UTF-8 if the default function does not exist.
+	 * @var string
+	 */
+	protected $utf8_strlen = 'mb_strlen';
+
+	/**
+	 * Replace tabs with the appropriate amount of spaces.
+	 *
+	 * For each line we separate the line in blocks delemited by tab characters.
+	 * Then we reconstruct every line by adding the  appropriate number of space
+	 * between each blocks.
+	 * 
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function detab($text) {	
+		$text = preg_replace_callback('/^.*\t.*$/m',
+			array($this, '_detab_callback'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Replace tabs callback
+	 * @param  string $matches
+	 * @return string
+	 */
+	protected function _detab_callback($matches) {
+		$line = $matches[0];
+		$strlen = $this->utf8_strlen; // strlen function for UTF-8.
+		
+		// Split in blocks.
+		$blocks = explode("\t", $line);
+		// Add each blocks to the line.
+		$line = $blocks[0];
+		unset($blocks[0]); // Do not add first block twice.
+		foreach ($blocks as $block) {
+			// Calculate amount of space, insert spaces, insert block.
+			$amount = $this->tab_width - 
+				$strlen($line, 'UTF-8') % $this->tab_width;
+			$line .= str_repeat(" ", $amount) . $block;
+		}
+		return $line;
+	}
+
+	/**
+	 * Check for the availability of the function in the `utf8_strlen` property
+	 * (initially `mb_strlen`). If the function is not available, create a 
+	 * function that will loosely count the number of UTF-8 characters with a
+	 * regular expression.
+	 * @return void
+	 */
+	protected function _initDetab() {
+	
+		if (function_exists($this->utf8_strlen)) {
+			return;
+		}
+
+		$this->utf8_strlen = create_function('$text', 'return preg_match_all(
+			"/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/", 
+			$text, $m);');
+	}
+
+	/**
+	 * Swap back in all the tags hashed by _HashHTMLBlocks.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function unhash($text) {
+		return preg_replace_callback('/(.)\x1A[0-9]+\1/', 
+			array($this, '_unhash_callback'), $text);
+	}
+
+	/**
+	 * Unhashing callback
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _unhash_callback($matches) {
+		return $this->html_hashes[$matches[0]];
+	}
+}
diff --git a/vendor/michelf/php-markdown/Michelf/MarkdownExtra.inc.php b/vendor/michelf/php-markdown/Michelf/MarkdownExtra.inc.php
new file mode 100644
index 0000000000..d09bd7a480
--- /dev/null
+++ b/vendor/michelf/php-markdown/Michelf/MarkdownExtra.inc.php
@@ -0,0 +1,11 @@
+
+ * @copyright 2004-2016 Michel Fortin 
+ * @copyright (Original Markdown) 2004-2006 John Gruber 
+ */
+
+namespace Michelf;
+
+/**
+ * Markdown Extra Parser Class
+ */
+class MarkdownExtra extends \Michelf\Markdown {
+	/**
+	 * Configuration variables
+	 */
+
+	/**
+	 * Prefix for footnote ids.
+	 * @var string
+	 */
+	public $fn_id_prefix = "";
+	
+	/**
+	 * Optional title attribute for footnote links and backlinks.
+	 * @var string
+	 */
+	public $fn_link_title     = "";
+	public $fn_backlink_title = "";
+	
+	/**
+	 * Optional class attribute for footnote links and backlinks.
+	 * @var string
+	 */
+	public $fn_link_class     = "footnote-ref";
+	public $fn_backlink_class = "footnote-backref";
+
+	/**
+	 * Content to be displayed within footnote backlinks. The default is '↩';
+	 * the U+FE0E on the end is a Unicode variant selector used to prevent iOS
+	 * from displaying the arrow character as an emoji.
+	 * @var string
+	 */
+	public $fn_backlink_html = '↩︎';
+
+	/**
+	 * Class name for table cell alignment (%% replaced left/center/right)
+	 * For instance: 'go-%%' becomes 'go-left' or 'go-right' or 'go-center'
+	 * If empty, the align attribute is used instead of a class name.
+	 * @var string
+	 */
+	public $table_align_class_tmpl = '';
+
+	/**
+	 * Optional class prefix for fenced code block.
+	 * @var string
+	 */
+	public $code_class_prefix = "";
+
+	/**
+	 * Class attribute for code blocks goes on the `code` tag;
+	 * setting this to true will put attributes on the `pre` tag instead.
+	 * @var boolean
+	 */
+	public $code_attr_on_pre = false;
+
+	/**
+	 * Predefined abbreviations.
+	 * @var array
+	 */
+	public $predef_abbr = array();
+
+	/**
+	 * Parser implementation
+	 */
+	
+	/**
+	 * Constructor function. Initialize the parser object.
+	 * @return void
+	 */
+	public function __construct() {
+		// Add extra escapable characters before parent constructor 
+		// initialize the table.
+		$this->escape_chars .= ':|';
+		
+		// Insert extra document, block, and span transformations. 
+		// Parent constructor will do the sorting.
+		$this->document_gamut += array(
+			"doFencedCodeBlocks" => 5,
+			"stripFootnotes"     => 15,
+			"stripAbbreviations" => 25,
+			"appendFootnotes"    => 50,
+		);
+		$this->block_gamut += array(
+			"doFencedCodeBlocks" => 5,
+			"doTables"           => 15,
+			"doDefLists"         => 45,
+		);
+		$this->span_gamut += array(
+			"doFootnotes"        => 5,
+			"doAbbreviations"    => 70,
+		);
+		
+		$this->enhanced_ordered_list = true;
+		parent::__construct();
+	}
+	
+	
+	/**
+	 * Extra variables used during extra transformations.
+	 * @var array
+	 */
+	protected $footnotes = array();
+	protected $footnotes_ordered = array();
+	protected $footnotes_ref_count = array();
+	protected $footnotes_numbers = array();
+	protected $abbr_desciptions = array();
+	/** @var @string */
+	protected $abbr_word_re = '';
+	
+	/**
+	 * Give the current footnote number.
+	 * @var integer
+	 */
+	protected $footnote_counter = 1;
+	
+	/**
+	 * Setting up Extra-specific variables.
+	 */
+	protected function setup() {
+		parent::setup();
+		
+		$this->footnotes = array();
+		$this->footnotes_ordered = array();
+		$this->footnotes_ref_count = array();
+		$this->footnotes_numbers = array();
+		$this->abbr_desciptions = array();
+		$this->abbr_word_re = '';
+		$this->footnote_counter = 1;
+		
+		foreach ($this->predef_abbr as $abbr_word => $abbr_desc) {
+			if ($this->abbr_word_re)
+				$this->abbr_word_re .= '|';
+			$this->abbr_word_re .= preg_quote($abbr_word);
+			$this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
+		}
+	}
+
+	/**
+	 * Clearing Extra-specific variables.
+	 */
+	protected function teardown() {
+		$this->footnotes = array();
+		$this->footnotes_ordered = array();
+		$this->footnotes_ref_count = array();
+		$this->footnotes_numbers = array();
+		$this->abbr_desciptions = array();
+		$this->abbr_word_re = '';
+		
+		parent::teardown();
+	}
+	
+	
+	/**
+	 * Extra attribute parser
+	 */
+
+	/**
+	 * Expression to use to catch attributes (includes the braces)
+	 * @var string
+	 */
+	protected $id_class_attr_catch_re = '\{((?>[ ]*[#.a-z][-_:a-zA-Z0-9=]+){1,})[ ]*\}';
+
+	/**
+	 * Expression to use when parsing in a context when no capture is desired
+	 * @var string
+	 */
+	protected $id_class_attr_nocatch_re = '\{(?>[ ]*[#.a-z][-_:a-zA-Z0-9=]+){1,}[ ]*\}';
+
+	/**
+	 * Parse attributes caught by the $this->id_class_attr_catch_re expression
+	 * and return the HTML-formatted list of attributes.
+	 *
+	 * Currently supported attributes are .class and #id.
+	 *
+	 * In addition, this method also supports supplying a default Id value,
+	 * which will be used to populate the id attribute in case it was not
+	 * overridden.
+	 * @param  string $tag_name
+	 * @param  string $attr
+	 * @param  mixed  $defaultIdValue
+	 * @param  array  $classes
+	 * @return string
+	 */
+	protected function doExtraAttributes($tag_name, $attr, $defaultIdValue = null, $classes = array()) {
+		if (empty($attr) && !$defaultIdValue && empty($classes)) return "";
+		
+		// Split on components
+		preg_match_all('/[#.a-z][-_:a-zA-Z0-9=]+/', $attr, $matches);
+		$elements = $matches[0];
+
+		// Handle classes and IDs (only first ID taken into account)
+		$attributes = array();
+		$id = false;
+		foreach ($elements as $element) {
+			if ($element{0} == '.') {
+				$classes[] = substr($element, 1);
+			} else if ($element{0} == '#') {
+				if ($id === false) $id = substr($element, 1);
+			} else if (strpos($element, '=') > 0) {
+				$parts = explode('=', $element, 2);
+				$attributes[] = $parts[0] . '="' . $parts[1] . '"';
+			}
+		}
+
+		if (!$id) $id = $defaultIdValue;
+
+		// Compose attributes as string
+		$attr_str = "";
+		if (!empty($id)) {
+			$attr_str .= ' id="'.$this->encodeAttribute($id) .'"';
+		}
+		if (!empty($classes)) {
+			$attr_str .= ' class="'. implode(" ", $classes) . '"';
+		}
+		if (!$this->no_markup && !empty($attributes)) {
+			$attr_str .= ' '.implode(" ", $attributes);
+		}
+		return $attr_str;
+	}
+
+	/**
+	 * Strips link definitions from text, stores the URLs and titles in
+	 * hash references.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function stripLinkDefinitions($text) {
+		$less_than_tab = $this->tab_width - 1;
+
+		// Link defs are in the form: ^[id]: url "optional title"
+		$text = preg_replace_callback('{
+							^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?:	# id = $1
+							  [ ]*
+							  \n?				# maybe *one* newline
+							  [ ]*
+							(?:
+							  <(.+?)>			# url = $2
+							|
+							  (\S+?)			# url = $3
+							)
+							  [ ]*
+							  \n?				# maybe one newline
+							  [ ]*
+							(?:
+								(?<=\s)			# lookbehind for whitespace
+								["(]
+								(.*?)			# title = $4
+								[")]
+								[ ]*
+							)?	# title is optional
+					(?:[ ]* '.$this->id_class_attr_catch_re.' )?  # $5 = extra id & class attr
+							(?:\n+|\Z)
+			}xm',
+			array($this, '_stripLinkDefinitions_callback'),
+			$text);
+		return $text;
+	}
+
+	/**
+	 * Strip link definition callback
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _stripLinkDefinitions_callback($matches) {
+		$link_id = strtolower($matches[1]);
+		$url = $matches[2] == '' ? $matches[3] : $matches[2];
+		$this->urls[$link_id] = $url;
+		$this->titles[$link_id] =& $matches[4];
+		$this->ref_attr[$link_id] = $this->doExtraAttributes("", $dummy =& $matches[5]);
+		return ''; // String that will replace the block
+	}
+
+
+	/**
+	 * HTML block parser
+	 */
+	
+	/**
+	 * Tags that are always treated as block tags
+	 * @var string
+	 */
+	protected $block_tags_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend|article|section|nav|aside|hgroup|header|footer|figcaption|figure';
+						   
+	/**
+	 * Tags treated as block tags only if the opening tag is alone on its line
+	 * @var string
+	 */
+	protected $context_block_tags_re = 'script|noscript|style|ins|del|iframe|object|source|track|param|math|svg|canvas|audio|video';
+	
+	/**
+	 * Tags where markdown="1" default to span mode:
+	 * @var string
+	 */
+	protected $contain_span_tags_re = 'p|h[1-6]|li|dd|dt|td|th|legend|address';
+	
+	/**
+	 * Tags which must not have their contents modified, no matter where
+	 * they appear
+	 * @var string
+	 */
+	protected $clean_tags_re = 'script|style|math|svg';
+	
+	/**
+	 * Tags that do not need to be closed.
+	 * @var string
+	 */
+	protected $auto_close_tags_re = 'hr|img|param|source|track';
+	
+	/**
+	 * Hashify HTML Blocks and "clean tags".
+	 *
+	 * We only want to do this for block-level HTML tags, such as headers,
+	 * lists, and tables. That's because we still want to wrap 
    s around
+	 * "paragraphs" that are wrapped in non-block-level tags, such as anchors,
+	 * phrase emphasis, and spans. The list of tags we're looking for is
+	 * hard-coded.
+	 *
+	 * This works by calling _HashHTMLBlocks_InMarkdown, which then calls
+	 * _HashHTMLBlocks_InHTML when it encounter block tags. When the markdown="1" 
+	 * attribute is found within a tag, _HashHTMLBlocks_InHTML calls back
+	 *  _HashHTMLBlocks_InMarkdown to handle the Markdown syntax within the tag.
+	 * These two functions are calling each other. It's recursive!
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function hashHTMLBlocks($text) {
+		if ($this->no_markup) {
+			return $text;
+		}
+
+		// Call the HTML-in-Markdown hasher.
+		list($text, ) = $this->_hashHTMLBlocks_inMarkdown($text);
+		
+		return $text;
+	}
+
+	/**
+	 * Parse markdown text, calling _HashHTMLBlocks_InHTML for block tags.
+	 *
+	 * *   $indent is the number of space to be ignored when checking for code 
+	 *     blocks. This is important because if we don't take the indent into 
+	 *     account, something like this (which looks right) won't work as expected:
+	 *
+	 *     
    
+	 *         
    
+	 *         Hello World.  <-- Is this a Markdown code block or text?
+	 *         
      <-- Is this a Markdown code block or a real tag?
+	 *     
    
+	 *
+	 *     If you don't like this, just don't indent the tag on which
+	 *     you apply the markdown="1" attribute.
+	 *
+	 * *   If $enclosing_tag_re is not empty, stops at the first unmatched closing 
+	 *     tag with that name. Nested tags supported.
+	 *
+	 * *   If $span is true, text inside must treated as span. So any double 
+	 *     newline will be replaced by a single newline so that it does not create 
+	 *     paragraphs.
+	 *
+	 * Returns an array of that form: ( processed text , remaining text )
+	 *
+	 * @param  string  $text
+	 * @param  integer $indent
+	 * @param  string  $enclosing_tag_re
+	 * @param  boolean $span
+	 * @return array
+	 */
+	protected function _hashHTMLBlocks_inMarkdown($text, $indent = 0,
+										$enclosing_tag_re = '', $span = false)
+	{
+	
+		if ($text === '') return array('', '');
+
+		// Regex to check for the presense of newlines around a block tag.
+		$newline_before_re = '/(?:^\n?|\n\n)*$/';
+		$newline_after_re = 
+			'{
+				^						# Start of text following the tag.
+				(?>[ ]*)?		# Optional comment.
+				[ ]*\n					# Must be followed by newline.
+			}xs';
+		
+		// Regex to match any tag.
+		$block_tag_re =
+			'{
+				(					# $2: Capture whole tag.
+									# Tag name.
+							' . $this->block_tags_re . '			|
+							' . $this->context_block_tags_re . '	|
+							' . $this->clean_tags_re . '        	|
+							(?!\s)'.$enclosing_tag_re . '
+						)
+						(?:
+							(?=[\s"\'/a-zA-Z0-9])	# Allowed characters after tag name.
+							(?>
+								".*?"		|	# Double quotes (can contain `>`)
+								\'.*?\'   	|	# Single quotes (can contain `>`)
+								.+?				# Anything but quotes and `>`.
+							)*?
+						)?
+					>					# End of tag.
+				|
+						# HTML Comment
+				|
+					<\?.*?\?> | <%.*?%>	# Processing instruction
+				|
+						# CData Block
+				' . ( !$span ? ' # If not in span.
+				|
+					# Indented code block
+					(?: ^[ ]*\n | ^ | \n[ ]*\n )
+					[ ]{' . ($indent + 4) . '}[^\n]* \n
+					(?>
+						(?: [ ]{' . ($indent + 4) . '}[^\n]* | [ ]* ) \n
+					)*
+				|
+					# Fenced code block marker
+					(?<= ^ | \n )
+					[ ]{0,' . ($indent + 3) . '}(?:~{3,}|`{3,})
+					[ ]*
+					(?: \.?[-_:a-zA-Z0-9]+ )? # standalone class name
+					[ ]*
+					(?: ' . $this->id_class_attr_nocatch_re . ' )? # extra attributes
+					[ ]*
+					(?= \n )
+				' : '' ) . ' # End (if not is span).
+				|
+					# Code span marker
+					# Note, this regex needs to go after backtick fenced
+					# code blocks but it should also be kept outside of the
+					# "if not in span" condition adding backticks to the parser
+					`+
+				)
+			}xs';
+
+		
+		$depth = 0;		// Current depth inside the tag tree.
+		$parsed = "";	// Parsed text that will be returned.
+
+		// Loop through every tag until we find the closing tag of the parent
+		// or loop until reaching the end of text if no parent tag specified.
+		do {
+			// Split the text using the first $tag_match pattern found.
+			// Text before  pattern will be first in the array, text after
+			// pattern will be at the end, and between will be any catches made 
+			// by the pattern.
+			$parts = preg_split($block_tag_re, $text, 2, 
+								PREG_SPLIT_DELIM_CAPTURE);
+			
+			// If in Markdown span mode, add a empty-string span-level hash 
+			// after each newline to prevent triggering any block element.
+			if ($span) {
+				$void = $this->hashPart("", ':');
+				$newline = "\n$void";
+				$parts[0] = $void . str_replace("\n", $newline, $parts[0]) . $void;
+			}
+			
+			$parsed .= $parts[0]; // Text before current tag.
+			
+			// If end of $text has been reached. Stop loop.
+			if (count($parts) < 3) {
+				$text = "";
+				break;
+			}
+			
+			$tag  = $parts[1]; // Tag to handle.
+			$text = $parts[2]; // Remaining text after current tag.
+			$tag_re = preg_quote($tag); // For use in a regular expression.
+			
+			// Check for: Fenced code block marker.
+			// Note: need to recheck the whole tag to disambiguate backtick
+			// fences from code spans
+			if (preg_match('{^\n?([ ]{0,' . ($indent + 3) . '})(~{3,}|`{3,})[ ]*(?:\.?[-_:a-zA-Z0-9]+)?[ ]*(?:' . $this->id_class_attr_nocatch_re . ')?[ ]*\n?$}', $tag, $capture)) {
+				// Fenced code block marker: find matching end marker.
+				$fence_indent = strlen($capture[1]); // use captured indent in re
+				$fence_re = $capture[2]; // use captured fence in re
+				if (preg_match('{^(?>.*\n)*?[ ]{' . ($fence_indent) . '}' . $fence_re . '[ ]*(?:\n|$)}', $text,
+					$matches)) 
+				{
+					// End marker found: pass text unchanged until marker.
+					$parsed .= $tag . $matches[0];
+					$text = substr($text, strlen($matches[0]));
+				}
+				else {
+					// No end marker: just skip it.
+					$parsed .= $tag;
+				}
+			}
+			// Check for: Indented code block.
+			else if ($tag{0} == "\n" || $tag{0} == " ") {
+				// Indented code block: pass it unchanged, will be handled 
+				// later.
+				$parsed .= $tag;
+			}
+			// Check for: Code span marker
+			// Note: need to check this after backtick fenced code blocks
+			else if ($tag{0} == "`") {
+				// Find corresponding end marker.
+				$tag_re = preg_quote($tag);
+				if (preg_match('{^(?>.+?|\n(?!\n))*?(?block_tags_re . ')\b}', $tag) ||
+				(	preg_match('{^<(?:' . $this->context_block_tags_re . ')\b}', $tag) &&
+					preg_match($newline_before_re, $parsed) &&
+					preg_match($newline_after_re, $text)	)
+				)
+			{
+				// Need to parse tag and following text using the HTML parser.
+				list($block_text, $text) = 
+					$this->_hashHTMLBlocks_inHTML($tag . $text, "hashBlock", true);
+				
+				// Make sure it stays outside of any paragraph by adding newlines.
+				$parsed .= "\n\n$block_text\n\n";
+			}
+			// Check for: Clean tag (like script, math)
+			//            HTML Comments, processing instructions.
+			else if (preg_match('{^<(?:' . $this->clean_tags_re . ')\b}', $tag) ||
+				$tag{1} == '!' || $tag{1} == '?')
+			{
+				// Need to parse tag and following text using the HTML parser.
+				// (don't check for markdown attribute)
+				list($block_text, $text) = 
+					$this->_hashHTMLBlocks_inHTML($tag . $text, "hashClean", false);
+				
+				$parsed .= $block_text;
+			}
+			// Check for: Tag with same name as enclosing tag.
+			else if ($enclosing_tag_re !== '' &&
+				// Same name as enclosing tag.
+				preg_match('{^= 0);
+		
+		return array($parsed, $text);
+	}
+
+	/**
+	 * Parse HTML, calling _HashHTMLBlocks_InMarkdown for block tags.
+	 *
+	 * *   Calls $hash_method to convert any blocks.
+	 * *   Stops when the first opening tag closes.
+	 * *   $md_attr indicate if the use of the `markdown="1"` attribute is allowed.
+	 *     (it is not inside clean tags)
+	 *
+	 * Returns an array of that form: ( processed text , remaining text )
+	 * @param  string $text
+	 * @param  string $hash_method
+	 * @param  string $md_attr
+	 * @return array
+	 */
+	protected function _hashHTMLBlocks_inHTML($text, $hash_method, $md_attr) {
+		if ($text === '') return array('', '');
+		
+		// Regex to match `markdown` attribute inside of a tag.
+		$markdown_attr_re = '
+			{
+				\s*			# Eat whitespace before the `markdown` attribute
+				markdown
+				\s*=\s*
+				(?>
+					(["\'])		# $1: quote delimiter		
+					(.*?)		# $2: attribute value
+					\1			# matching delimiter	
+				|
+					([^\s>]*)	# $3: unquoted attribute value
+				)
+				()				# $4: make $3 always defined (avoid warnings)
+			}xs';
+		
+		// Regex to match any tag.
+		$tag_re = '{
+				(					# $2: Capture whole tag.
+					
+								".*?"		|	# Double quotes (can contain `>`)
+								\'.*?\'   	|	# Single quotes (can contain `>`)
+								.+?				# Anything but quotes and `>`.
+							)*?
+						)?
+					>					# End of tag.
+				|
+						# HTML Comment
+				|
+					<\?.*?\?> | <%.*?%>	# Processing instruction
+				|
+						# CData Block
+				)
+			}xs';
+		
+		$original_text = $text;		// Save original text in case of faliure.
+		
+		$depth		= 0;	// Current depth inside the tag tree.
+		$block_text	= "";	// Temporary text holder for current text.
+		$parsed		= "";	// Parsed text that will be returned.
+
+		// Get the name of the starting tag.
+		// (This pattern makes $base_tag_name_re safe without quoting.)
+		if (preg_match('/^<([\w:$]*)\b/', $text, $matches))
+			$base_tag_name_re = $matches[1];
+
+		// Loop through every tag until we find the corresponding closing tag.
+		do {
+			// Split the text using the first $tag_match pattern found.
+			// Text before  pattern will be first in the array, text after
+			// pattern will be at the end, and between will be any catches made 
+			// by the pattern.
+			$parts = preg_split($tag_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
+			
+			if (count($parts) < 3) {
+				// End of $text reached with unbalenced tag(s).
+				// In that case, we return original text unchanged and pass the
+				// first character as filtered to prevent an infinite loop in the 
+				// parent function.
+				return array($original_text{0}, substr($original_text, 1));
+			}
+			
+			$block_text .= $parts[0]; // Text before current tag.
+			$tag         = $parts[1]; // Tag to handle.
+			$text        = $parts[2]; // Remaining text after current tag.
+			
+			// Check for: Auto-close tag (like 
    )
+			//			 Comments and Processing Instructions.
+			if (preg_match('{^auto_close_tags_re . ')\b}', $tag) ||
+				$tag{1} == '!' || $tag{1} == '?')
+			{
+				// Just add the tag to the block as if it was text.
+				$block_text .= $tag;
+			}
+			else {
+				// Increase/decrease nested tag count. Only do so if
+				// the tag's name match base tag's.
+				if (preg_match('{^mode = $attr_m[2] . $attr_m[3];
+					$span_mode = $this->mode == 'span' || $this->mode != 'block' &&
+						preg_match('{^<(?:' . $this->contain_span_tags_re . ')\b}', $tag);
+					
+					// Calculate indent before tag.
+					if (preg_match('/(?:^|\n)( *?)(?! ).*?$/', $block_text, $matches)) {
+						$strlen = $this->utf8_strlen;
+						$indent = $strlen($matches[1], 'UTF-8');
+					} else {
+						$indent = 0;
+					}
+					
+					// End preceding block with this tag.
+					$block_text .= $tag;
+					$parsed .= $this->$hash_method($block_text);
+					
+					// Get enclosing tag name for the ParseMarkdown function.
+					// (This pattern makes $tag_name_re safe without quoting.)
+					preg_match('/^<([\w:$]*)\b/', $tag, $matches);
+					$tag_name_re = $matches[1];
+					
+					// Parse the content using the HTML-in-Markdown parser.
+					list ($block_text, $text)
+						= $this->_hashHTMLBlocks_inMarkdown($text, $indent, 
+							$tag_name_re, $span_mode);
+					
+					// Outdent markdown text.
+					if ($indent > 0) {
+						$block_text = preg_replace("/^[ ]{1,$indent}/m", "", 
+													$block_text);
+					}
+					
+					// Append tag content to parsed text.
+					if (!$span_mode)	$parsed .= "\n\n$block_text\n\n";
+					else				$parsed .= "$block_text";
+					
+					// Start over with a new block.
+					$block_text = "";
+				}
+				else $block_text .= $tag;
+			}
+			
+		} while ($depth > 0);
+		
+		// Hash last block text that wasn't processed inside the loop.
+		$parsed .= $this->$hash_method($block_text);
+		
+		return array($parsed, $text);
+	}
+
+	/**
+	 * Called whenever a tag must be hashed when a function inserts a "clean" tag
+	 * in $text, it passes through this function and is automaticaly escaped, 
+	 * blocking invalid nested overlap.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function hashClean($text) {
+		return $this->hashPart($text, 'C');
+	}
+
+	/**
+	 * Turn Markdown link shortcuts into XHTML  tags.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doAnchors($text) {
+		if ($this->in_anchor) {
+			return $text;
+		}
+		$this->in_anchor = true;
+
+		// First, handle reference-style links: [link text] [id]
+		$text = preg_replace_callback('{
+			(					# wrap whole match in $1
+			  \[
+				(' . $this->nested_brackets_re . ')	# link text = $2
+			  \]
+
+			  [ ]?				# one optional space
+			  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+			  \[
+				(.*?)		# id = $3
+			  \]
+			)
+			}xs',
+			array($this, '_doAnchors_reference_callback'), $text);
+
+		// Next, inline-style links: [link text](url "optional title")
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  \[
+				(' . $this->nested_brackets_re . ')	# link text = $2
+			  \]
+			  \(			# literal paren
+				[ \n]*
+				(?:
+					<(.+?)>	# href = $3
+				|
+					(' . $this->nested_url_parenthesis_re . ')	# href = $4
+				)
+				[ \n]*
+				(			# $5
+				  ([\'"])	# quote char = $6
+				  (.*?)		# Title = $7
+				  \6		# matching quote
+				  [ \n]*	# ignore any spaces/tabs between closing quote and )
+				)?			# title is optional
+			  \)
+			  (?:[ ]? ' . $this->id_class_attr_catch_re . ' )?	 # $8 = id/class attributes
+			)
+			}xs',
+			array($this, '_doAnchors_inline_callback'), $text);
+
+		// Last, handle reference-style shortcuts: [link text]
+		// These must come last in case you've also got [link text][1]
+		// or [link text](/foo)
+		$text = preg_replace_callback('{
+			(					# wrap whole match in $1
+			  \[
+				([^\[\]]+)		# link text = $2; can\'t contain [ or ]
+			  \]
+			)
+			}xs',
+			array($this, '_doAnchors_reference_callback'), $text);
+
+		$this->in_anchor = false;
+		return $text;
+	}
+
+	/**
+	 * Callback for reference anchors
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doAnchors_reference_callback($matches) {
+		$whole_match =  $matches[1];
+		$link_text   =  $matches[2];
+		$link_id     =& $matches[3];
+
+		if ($link_id == "") {
+			// for shortcut links like [this][] or [this].
+			$link_id = $link_text;
+		}
+		
+		// lower-case and turn embedded newlines into spaces
+		$link_id = strtolower($link_id);
+		$link_id = preg_replace('{[ ]?\n}', ' ', $link_id);
+
+		if (isset($this->urls[$link_id])) {
+			$url = $this->urls[$link_id];
+			$url = $this->encodeURLAttribute($url);
+			
+			$result = "titles[$link_id] ) ) {
+				$title = $this->titles[$link_id];
+				$title = $this->encodeAttribute($title);
+				$result .=  " title=\"$title\"";
+			}
+			if (isset($this->ref_attr[$link_id]))
+				$result .= $this->ref_attr[$link_id];
+		
+			$link_text = $this->runSpanGamut($link_text);
+			$result .= ">$link_text";
+			$result = $this->hashPart($result);
+		}
+		else {
+			$result = $whole_match;
+		}
+		return $result;
+	}
+
+	/**
+	 * Callback for inline anchors
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doAnchors_inline_callback($matches) {
+		$whole_match	=  $matches[1];
+		$link_text		=  $this->runSpanGamut($matches[2]);
+		$url			=  $matches[3] == '' ? $matches[4] : $matches[3];
+		$title			=& $matches[7];
+		$attr  = $this->doExtraAttributes("a", $dummy =& $matches[8]);
+
+		// if the URL was of the form  it got caught by the HTML
+		// tag parser and hashed. Need to reverse the process before using the URL.
+		$unhashed = $this->unhash($url);
+		if ($unhashed != $url)
+			$url = preg_replace('/^<(.*)>$/', '\1', $unhashed);
+
+		$url = $this->encodeURLAttribute($url);
+
+		$result = "encodeAttribute($title);
+			$result .=  " title=\"$title\"";
+		}
+		$result .= $attr;
+		
+		$link_text = $this->runSpanGamut($link_text);
+		$result .= ">$link_text";
+
+		return $this->hashPart($result);
+	}
+
+	/**
+	 * Turn Markdown image shortcuts into  tags.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doImages($text) {
+		// First, handle reference-style labeled images: ![alt text][id]
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  !\[
+				(' . $this->nested_brackets_re . ')		# alt text = $2
+			  \]
+
+			  [ ]?				# one optional space
+			  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+			  \[
+				(.*?)		# id = $3
+			  \]
+
+			)
+			}xs', 
+			array($this, '_doImages_reference_callback'), $text);
+
+		// Next, handle inline images:  ![alt text](url "optional title")
+		// Don't forget: encode * and _
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  !\[
+				(' . $this->nested_brackets_re . ')		# alt text = $2
+			  \]
+			  \s?			# One optional whitespace character
+			  \(			# literal paren
+				[ \n]*
+				(?:
+					<(\S*)>	# src url = $3
+				|
+					(' . $this->nested_url_parenthesis_re . ')	# src url = $4
+				)
+				[ \n]*
+				(			# $5
+				  ([\'"])	# quote char = $6
+				  (.*?)		# title = $7
+				  \6		# matching quote
+				  [ \n]*
+				)?			# title is optional
+			  \)
+			  (?:[ ]? ' . $this->id_class_attr_catch_re . ' )?	 # $8 = id/class attributes
+			)
+			}xs',
+			array($this, '_doImages_inline_callback'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Callback for referenced images
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doImages_reference_callback($matches) {
+		$whole_match = $matches[1];
+		$alt_text    = $matches[2];
+		$link_id     = strtolower($matches[3]);
+
+		if ($link_id == "") {
+			$link_id = strtolower($alt_text); // for shortcut links like ![this][].
+		}
+
+		$alt_text = $this->encodeAttribute($alt_text);
+		if (isset($this->urls[$link_id])) {
+			$url = $this->encodeURLAttribute($this->urls[$link_id]);
+			$result = "\"$alt_text\"";titles[$link_id])) {
+				$title = $this->titles[$link_id];
+				$title = $this->encodeAttribute($title);
+				$result .=  " title=\"$title\"";
+			}
+			if (isset($this->ref_attr[$link_id]))
+				$result .= $this->ref_attr[$link_id];
+			$result .= $this->empty_element_suffix;
+			$result = $this->hashPart($result);
+		}
+		else {
+			// If there's no such link ID, leave intact:
+			$result = $whole_match;
+		}
+
+		return $result;
+	}
+
+	/**
+	 * Callback for inline images
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doImages_inline_callback($matches) {
+		$whole_match	= $matches[1];
+		$alt_text		= $matches[2];
+		$url			= $matches[3] == '' ? $matches[4] : $matches[3];
+		$title			=& $matches[7];
+		$attr  = $this->doExtraAttributes("img", $dummy =& $matches[8]);
+
+		$alt_text = $this->encodeAttribute($alt_text);
+		$url = $this->encodeURLAttribute($url);
+		$result = "\"$alt_text\"";encodeAttribute($title);
+			$result .=  " title=\"$title\""; // $title already quoted
+		}
+		$result .= $attr;
+		$result .= $this->empty_element_suffix;
+
+		return $this->hashPart($result);
+	}
+
+	/**
+	 * Process markdown headers. Redefined to add ID and class attribute support.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doHeaders($text) {
+		// Setext-style headers:
+		//  Header 1  {#header1}
+		//	  ========
+		//  
+		//	  Header 2  {#header2 .class1 .class2}
+		//	  --------
+		//
+		$text = preg_replace_callback(
+			'{
+				(^.+?)								# $1: Header text
+				(?:[ ]+ ' . $this->id_class_attr_catch_re . ' )?	 # $3 = id/class attributes
+				[ ]*\n(=+|-+)[ ]*\n+				# $3: Header footer
+			}mx',
+			array($this, '_doHeaders_callback_setext'), $text);
+
+		// atx-style headers:
+		//	# Header 1        {#header1}
+		//	## Header 2       {#header2}
+		//	## Header 2 with closing hashes ##  {#header3.class1.class2}
+		//	...
+		//	###### Header 6   {.class2}
+		//
+		$text = preg_replace_callback('{
+				^(\#{1,6})	# $1 = string of #\'s
+				[ ]*
+				(.+?)		# $2 = Header text
+				[ ]*
+				\#*			# optional closing #\'s (not counted)
+				(?:[ ]+ ' . $this->id_class_attr_catch_re . ' )?	 # $3 = id/class attributes
+				[ ]*
+				\n+
+			}xm',
+			array($this, '_doHeaders_callback_atx'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Callback for setext headers
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doHeaders_callback_setext($matches) {
+		if ($matches[3] == '-' && preg_match('{^- }', $matches[1])) {
+			return $matches[0];
+		}
+
+		$level = $matches[3]{0} == '=' ? 1 : 2;
+
+		$defaultId = is_callable($this->header_id_func) ? call_user_func($this->header_id_func, $matches[1]) : null;
+
+		$attr  = $this->doExtraAttributes("h$level", $dummy =& $matches[2], $defaultId);
+		$block = "" . $this->runSpanGamut($matches[1]) . "";
+		return "\n" . $this->hashBlock($block) . "\n\n";
+	}
+
+	/**
+	 * Callback for atx headers
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doHeaders_callback_atx($matches) {
+		$level = strlen($matches[1]);
+
+		$defaultId = is_callable($this->header_id_func) ? call_user_func($this->header_id_func, $matches[2]) : null;
+		$attr  = $this->doExtraAttributes("h$level", $dummy =& $matches[3], $defaultId);
+		$block = "" . $this->runSpanGamut($matches[2]) . "";
+		return "\n" . $this->hashBlock($block) . "\n\n";
+	}
+
+	/**
+	 * Form HTML tables.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doTables($text) {
+		$less_than_tab = $this->tab_width - 1;
+		// Find tables with leading pipe.
+		//
+		//	| Header 1 | Header 2
+		//	| -------- | --------
+		//	| Cell 1   | Cell 2
+		//	| Cell 3   | Cell 4
+		$text = preg_replace_callback('
+			{
+				^							# Start of a line
+				[ ]{0,' . $less_than_tab . '}	# Allowed whitespace.
+				[|]							# Optional leading pipe (present)
+				(.+) \n						# $1: Header row (at least one pipe)
+				
+				[ ]{0,' . $less_than_tab . '}	# Allowed whitespace.
+				[|] ([ ]*[-:]+[-| :]*) \n	# $2: Header underline
+				
+				(							# $3: Cells
+					(?>
+						[ ]*				# Allowed whitespace.
+						[|] .* \n			# Row content.
+					)*
+				)
+				(?=\n|\Z)					# Stop at final double newline.
+			}xm',
+			array($this, '_doTable_leadingPipe_callback'), $text);
+
+		// Find tables without leading pipe.
+		//
+		//	Header 1 | Header 2
+		//	-------- | --------
+		//	Cell 1   | Cell 2
+		//	Cell 3   | Cell 4
+		$text = preg_replace_callback('
+			{
+				^							# Start of a line
+				[ ]{0,' . $less_than_tab . '}	# Allowed whitespace.
+				(\S.*[|].*) \n				# $1: Header row (at least one pipe)
+				
+				[ ]{0,' . $less_than_tab . '}	# Allowed whitespace.
+				([-:]+[ ]*[|][-| :]*) \n	# $2: Header underline
+				
+				(							# $3: Cells
+					(?>
+						.* [|] .* \n		# Row content
+					)*
+				)
+				(?=\n|\Z)					# Stop at final double newline.
+			}xm',
+			array($this, '_DoTable_callback'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Callback for removing the leading pipe for each row
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doTable_leadingPipe_callback($matches) {
+		$head		= $matches[1];
+		$underline	= $matches[2];
+		$content	= $matches[3];
+
+		$content	= preg_replace('/^ *[|]/m', '', $content);
+		
+		return $this->_doTable_callback(array($matches[0], $head, $underline, $content));
+	}
+
+	/**
+	 * Make the align attribute in a table
+	 * @param  string $alignname
+	 * @return string
+	 */
+	protected function _doTable_makeAlignAttr($alignname)
+	{
+		if (empty($this->table_align_class_tmpl)) {
+			return " align=\"$alignname\"";
+		}
+
+		$classname = str_replace('%%', $alignname, $this->table_align_class_tmpl);
+		return " class=\"$classname\"";
+	}
+
+	/**
+	 * Calback for processing tables
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doTable_callback($matches) {
+		$head		= $matches[1];
+		$underline	= $matches[2];
+		$content	= $matches[3];
+
+		// Remove any tailing pipes for each line.
+		$head		= preg_replace('/[|] *$/m', '', $head);
+		$underline	= preg_replace('/[|] *$/m', '', $underline);
+		$content	= preg_replace('/[|] *$/m', '', $content);
+		
+		// Reading alignement from header underline.
+		$separators	= preg_split('/ *[|] */', $underline);
+		foreach ($separators as $n => $s) {
+			if (preg_match('/^ *-+: *$/', $s))
+				$attr[$n] = $this->_doTable_makeAlignAttr('right');
+			else if (preg_match('/^ *:-+: *$/', $s))
+				$attr[$n] = $this->_doTable_makeAlignAttr('center');
+			else if (preg_match('/^ *:-+ *$/', $s))
+				$attr[$n] = $this->_doTable_makeAlignAttr('left');
+			else
+				$attr[$n] = '';
+		}
+		
+		// Parsing span elements, including code spans, character escapes, 
+		// and inline HTML tags, so that pipes inside those gets ignored.
+		$head		= $this->parseSpan($head);
+		$headers	= preg_split('/ *[|] */', $head);
+		$col_count	= count($headers);
+		$attr       = array_pad($attr, $col_count, '');
+		
+		// Write column headers.
+		$text = "\n";
+		$text .= "\n";
+		$text .= "\n";
+		foreach ($headers as $n => $header)
+			$text .= "  " . $this->runSpanGamut(trim($header)) . "\n";
+		$text .= "\n";
+		$text .= "\n";
+		
+		// Split content by row.
+		$rows = explode("\n", trim($content, "\n"));
+		
+		$text .= "\n";
+		foreach ($rows as $row) {
+			// Parsing span elements, including code spans, character escapes, 
+			// and inline HTML tags, so that pipes inside those gets ignored.
+			$row = $this->parseSpan($row);
+			
+			// Split row by cell.
+			$row_cells = preg_split('/ *[|] */', $row, $col_count);
+			$row_cells = array_pad($row_cells, $col_count, '');
+			
+			$text .= "\n";
+			foreach ($row_cells as $n => $cell)
+				$text .= "  " . $this->runSpanGamut(trim($cell)) . "\n";
+			$text .= "\n";
+		}
+		$text .= "\n";
+		$text .= "
    ";
+		
+		return $this->hashBlock($text) . "\n";
+	}
+
+	/**
+	 * Form HTML definition lists.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doDefLists($text) {
+		$less_than_tab = $this->tab_width - 1;
+
+		// Re-usable pattern to match any entire dl list:
+		$whole_list_re = '(?>
+			(								# $1 = whole list
+			  (								# $2
+				[ ]{0,' . $less_than_tab . '}
+				((?>.*\S.*\n)+)				# $3 = defined term
+				\n?
+				[ ]{0,' . $less_than_tab . '}:[ ]+ # colon starting definition
+			  )
+			  (?s:.+?)
+			  (								# $4
+				  \z
+				|
+				  \n{2,}
+				  (?=\S)
+				  (?!						# Negative lookahead for another term
+					[ ]{0,' . $less_than_tab . '}
+					(?: \S.*\n )+?			# defined term
+					\n?
+					[ ]{0,' . $less_than_tab . '}:[ ]+ # colon starting definition
+				  )
+				  (?!						# Negative lookahead for another definition
+					[ ]{0,' . $less_than_tab . '}:[ ]+ # colon starting definition
+				  )
+			  )
+			)
+		)'; // mx
+
+		$text = preg_replace_callback('{
+				(?>\A\n?|(?<=\n\n))
+				' . $whole_list_re . '
+			}mx',
+			array($this, '_doDefLists_callback'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Callback for processing definition lists
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doDefLists_callback($matches) {
+		// Re-usable patterns to match list item bullets and number markers:
+		$list = $matches[1];
+		
+		// Turn double returns into triple returns, so that we can make a
+		// paragraph for the last item in a list, if necessary:
+		$result = trim($this->processDefListItems($list));
+		$result = "
    \n" . $result . "\n
    ";
+		return $this->hashBlock($result) . "\n\n";
+	}
+
+	/**
+	 * Process the contents of a single definition list, splitting it
+	 * into individual term and definition list items.
+	 * @param  string $list_str
+	 * @return string
+	 */
+	protected function processDefListItems($list_str) {
+	
+		$less_than_tab = $this->tab_width - 1;
+		
+		// Trim trailing blank lines:
+		$list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
+
+		// Process definition terms.
+		$list_str = preg_replace_callback('{
+			(?>\A\n?|\n\n+)						# leading line
+			(									# definition terms = $1
+				[ ]{0,' . $less_than_tab . '}	# leading whitespace
+				(?!\:[ ]|[ ])					# negative lookahead for a definition
+												#   mark (colon) or more whitespace.
+				(?> \S.* \n)+?					# actual term (not whitespace).	
+			)			
+			(?=\n?[ ]{0,3}:[ ])					# lookahead for following line feed 
+												#   with a definition mark.
+			}xm',
+			array($this, '_processDefListItems_callback_dt'), $list_str);
+
+		// Process actual definitions.
+		$list_str = preg_replace_callback('{
+			\n(\n+)?							# leading line = $1
+			(									# marker space = $2
+				[ ]{0,' . $less_than_tab . '}	# whitespace before colon
+				\:[ ]+							# definition mark (colon)
+			)
+			((?s:.+?))							# definition text = $3
+			(?= \n+ 							# stop at next definition mark,
+				(?:								# next term or end of text
+					[ ]{0,' . $less_than_tab . '} \:[ ]	|
+					
     | \z
+				)						
+			)					
+			}xm',
+			array($this, '_processDefListItems_callback_dd'), $list_str);
+
+		return $list_str;
+	}
+
+	/**
+	 * Callback for 
     elements in definition lists
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _processDefListItems_callback_dt($matches) {
+		$terms = explode("\n", trim($matches[1]));
+		$text = '';
+		foreach ($terms as $term) {
+			$term = $this->runSpanGamut(trim($term));
+			$text .= "\n
    " . $term . "
    ";
+		}
+		return $text . "\n";
+	}
+
+	/**
+	 * Callback for 
     elements in definition lists
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _processDefListItems_callback_dd($matches) {
+		$leading_line	= $matches[1];
+		$marker_space	= $matches[2];
+		$def			= $matches[3];
+
+		if ($leading_line || preg_match('/\n{2,}/', $def)) {
+			// Replace marker with the appropriate whitespace indentation
+			$def = str_repeat(' ', strlen($marker_space)) . $def;
+			$def = $this->runBlockGamut($this->outdent($def . "\n\n"));
+			$def = "\n". $def ."\n";
+		}
+		else {
+			$def = rtrim($def);
+			$def = $this->runSpanGamut($this->outdent($def));
+		}
+
+		return "\n
    " . $def . "
    \n";
+	}
+
+	/**
+	 * Adding the fenced code block syntax to regular Markdown:
+	 *
+	 * ~~~
+	 * Code block
+	 * ~~~
+	 * 
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doFencedCodeBlocks($text) {
+	
+		$less_than_tab = $this->tab_width;
+		
+		$text = preg_replace_callback('{
+				(?:\n|\A)
+				# 1: Opening marker
+				(
+					(?:~{3,}|`{3,}) # 3 or more tildes/backticks.
+				)
+				[ ]*
+				(?:
+					\.?([-_:a-zA-Z0-9]+) # 2: standalone class name
+				)?
+				[ ]*
+				(?:
+					' . $this->id_class_attr_catch_re . ' # 3: Extra attributes
+				)?
+				[ ]* \n # Whitespace and newline following marker.
+				
+				# 4: Content
+				(
+					(?>
+						(?!\1 [ ]* \n)	# Not a closing marker.
+						.*\n+
+					)+
+				)
+				
+				# Closing marker.
+				\1 [ ]* (?= \n )
+			}xm',
+			array($this, '_doFencedCodeBlocks_callback'), $text);
+
+		return $text;
+	}
+
+	/**
+	 * Callback to process fenced code blocks
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doFencedCodeBlocks_callback($matches) {
+		$classname =& $matches[2];
+		$attrs     =& $matches[3];
+		$codeblock = $matches[4];
+
+		if ($this->code_block_content_func) {
+			$codeblock = call_user_func($this->code_block_content_func, $codeblock, $classname);
+		} else {
+			$codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
+		}
+
+		$codeblock = preg_replace_callback('/^\n+/',
+			array($this, '_doFencedCodeBlocks_newlines'), $codeblock);
+
+		$classes = array();
+		if ($classname != "") {
+			if ($classname{0} == '.')
+				$classname = substr($classname, 1);
+			$classes[] = $this->code_class_prefix . $classname;
+		}
+		$attr_str = $this->doExtraAttributes($this->code_attr_on_pre ? "pre" : "code", $attrs, null, $classes);
+		$pre_attr_str  = $this->code_attr_on_pre ? $attr_str : '';
+		$code_attr_str = $this->code_attr_on_pre ? '' : $attr_str;
+		$codeblock  = "$codeblock
    ";
+		
+		return "\n\n".$this->hashBlock($codeblock)."\n\n";
+	}
+
+	/**
+	 * Replace new lines in fenced code blocks
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doFencedCodeBlocks_newlines($matches) {
+		return str_repeat("empty_element_suffix", 
+			strlen($matches[0]));
+	}
+
+	/**
+	 * Redefining emphasis markers so that emphasis by underscore does not
+	 * work in the middle of a word.
+	 * @var array
+	 */
+	protected $em_relist = array(
+		''  => '(?:(? '(? '(? '(?:(? '(? '(? '(?:(? '(? '(? tags
+	 * @return string       HTML output
+	 */
+	protected function formParagraphs($text, $wrap_in_p = true) {
+		// Strip leading and trailing lines:
+		$text = preg_replace('/\A\n+|\n+\z/', '', $text);
+
+		$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
+
+		// Wrap 
     tags and unhashify HTML blocks
+		foreach ($grafs as $key => $value) {
+			$value = trim($this->runSpanGamut($value));
+			
+			// Check if this should be enclosed in a paragraph.
+			// Clean tag hashes & block tag hashes are left alone.
+			$is_p = $wrap_in_p && !preg_match('/^B\x1A[0-9]+B|^C\x1A[0-9]+C$/', $value);
+			
+			if ($is_p) {
+				$value = "
    $value
    ";
+			}
+			$grafs[$key] = $value;
+		}
+		
+		// Join grafs in one text, then unhash HTML tags. 
+		$text = implode("\n\n", $grafs);
+		
+		// Finish by removing any tag hashes still present in $text.
+		$text = $this->unhash($text);
+		
+		return $text;
+	}
+	
+	
+	/**
+	 * Footnotes - Strips link definitions from text, stores the URLs and
+	 * titles in hash references.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function stripFootnotes($text) {
+		$less_than_tab = $this->tab_width - 1;
+
+		// Link defs are in the form: [^id]: url "optional title"
+		$text = preg_replace_callback('{
+			^[ ]{0,' . $less_than_tab . '}\[\^(.+?)\][ ]?:	# note_id = $1
+			  [ ]*
+			  \n?					# maybe *one* newline
+			(						# text = $2 (no blank lines allowed)
+				(?:					
+					.+				# actual text
+				|
+					\n				# newlines but 
+					(?!\[.+?\][ ]?:\s)# negative lookahead for footnote or link definition marker.
+					(?!\n+[ ]{0,3}\S)# ensure line is not blank and followed 
+									# by non-indented content
+				)*
+			)		
+			}xm',
+			array($this, '_stripFootnotes_callback'),
+			$text);
+		return $text;
+	}
+
+	/**
+	 * Callback for stripping footnotes
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _stripFootnotes_callback($matches) {
+		$note_id = $this->fn_id_prefix . $matches[1];
+		$this->footnotes[$note_id] = $this->outdent($matches[2]);
+		return ''; // String that will replace the block
+	}
+
+	/**
+	 * Replace footnote references in $text [^id] with a special text-token 
+	 * which will be replaced by the actual footnote marker in appendFootnotes.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doFootnotes($text) {
+		if (!$this->in_anchor) {
+			$text = preg_replace('{\[\^(.+?)\]}', "F\x1Afn:\\1\x1A:", $text);
+		}
+		return $text;
+	}
+
+	/**
+	 * Append footnote list to text
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function appendFootnotes($text) {
+		$text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', 
+			array($this, '_appendFootnotes_callback'), $text);
+	
+		if (!empty($this->footnotes_ordered)) {
+			$text .= "\n\n";
+			$text .= "
    \n";
+			$text .= "empty_element_suffix . "\n";
+			$text .= "
      \n\n";
+
+			$attr = "";
+			if ($this->fn_backlink_class != "") {
+				$class = $this->fn_backlink_class;
+				$class = $this->encodeAttribute($class);
+				$attr .= " class=\"$class\"";
+			}
+			if ($this->fn_backlink_title != "") {
+				$title = $this->fn_backlink_title;
+				$title = $this->encodeAttribute($title);
+				$attr .= " title=\"$title\"";
+			}
+			$backlink_text = $this->fn_backlink_html;
+			$num = 0;
+			
+			while (!empty($this->footnotes_ordered)) {
+				$footnote = reset($this->footnotes_ordered);
+				$note_id = key($this->footnotes_ordered);
+				unset($this->footnotes_ordered[$note_id]);
+				$ref_count = $this->footnotes_ref_count[$note_id];
+				unset($this->footnotes_ref_count[$note_id]);
+				unset($this->footnotes[$note_id]);
+				
+				$footnote .= "\n"; // Need to append newline before parsing.
+				$footnote = $this->runBlockGamut("$footnote\n");				
+				$footnote = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', 
+					array($this, '_appendFootnotes_callback'), $footnote);
+				
+				$attr = str_replace("%%", ++$num, $attr);
+				$note_id = $this->encodeAttribute($note_id);
+
+				// Prepare backlink, multiple backlinks if multiple references
+				$backlink = "$backlink_text";
+				for ($ref_num = 2; $ref_num <= $ref_count; ++$ref_num) {
+					$backlink .= " $backlink_text";
+				}
+				// Add backlink to last paragraph; create new paragraph if needed.
+				if (preg_match('{
      $}', $footnote)) {
+					$footnote = substr($footnote, 0, -4) . " $backlink
      ";
+				} else {
+					$footnote .= "\n\n
      $backlink
      ";
+				}
+				
+				$text .= "
    1. \n";
+				$text .= $footnote . "\n";
+				$text .= "
      2. \n\n";
+			}
+			
+			$text .= "
    \n";
+			$text .= "
    ";
+		}
+		return $text;
+	}
+
+	/**
+	 * Callback for appending footnotes
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _appendFootnotes_callback($matches) {
+		$node_id = $this->fn_id_prefix . $matches[1];
+		
+		// Create footnote marker only if it has a corresponding footnote *and*
+		// the footnote hasn't been used by another marker.
+		if (isset($this->footnotes[$node_id])) {
+			$num =& $this->footnotes_numbers[$node_id];
+			if (!isset($num)) {
+				// Transfer footnote content to the ordered list and give it its
+				// number
+				$this->footnotes_ordered[$node_id] = $this->footnotes[$node_id];
+				$this->footnotes_ref_count[$node_id] = 1;
+				$num = $this->footnote_counter++;
+				$ref_count_mark = '';
+			} else {
+				$ref_count_mark = $this->footnotes_ref_count[$node_id] += 1;
+			}
+
+			$attr = "";
+			if ($this->fn_link_class != "") {
+				$class = $this->fn_link_class;
+				$class = $this->encodeAttribute($class);
+				$attr .= " class=\"$class\"";
+			}
+			if ($this->fn_link_title != "") {
+				$title = $this->fn_link_title;
+				$title = $this->encodeAttribute($title);
+				$attr .= " title=\"$title\"";
+			}
+			
+			$attr = str_replace("%%", $num, $attr);
+			$node_id = $this->encodeAttribute($node_id);
+			
+			return
+				"".
+				"$num".
+				"";
+		}
+		
+		return "[^" . $matches[1] . "]";
+	}
+		
+	
+	/**
+	 * Abbreviations - strips abbreviations from text, stores titles in hash
+	 * references.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function stripAbbreviations($text) {
+		$less_than_tab = $this->tab_width - 1;
+
+		// Link defs are in the form: [id]*: url "optional title"
+		$text = preg_replace_callback('{
+			^[ ]{0,' . $less_than_tab . '}\*\[(.+?)\][ ]?:	# abbr_id = $1
+			(.*)					# text = $2 (no blank lines allowed)	
+			}xm',
+			array($this, '_stripAbbreviations_callback'),
+			$text);
+		return $text;
+	}
+
+	/**
+	 * Callback for stripping abbreviations
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _stripAbbreviations_callback($matches) {
+		$abbr_word = $matches[1];
+		$abbr_desc = $matches[2];
+		if ($this->abbr_word_re) {
+			$this->abbr_word_re .= '|';
+		}
+		$this->abbr_word_re .= preg_quote($abbr_word);
+		$this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
+		return ''; // String that will replace the block
+	}
+
+	/**
+	 * Find defined abbreviations in text and wrap them in  elements.
+	 * @param  string $text
+	 * @return string
+	 */
+	protected function doAbbreviations($text) {
+		if ($this->abbr_word_re) {
+			// cannot use the /x modifier because abbr_word_re may 
+			// contain significant spaces:
+			$text = preg_replace_callback('{' .
+				'(?abbr_word_re . ')' .
+				'(?![\w\x1A])' .
+				'}',
+				array($this, '_doAbbreviations_callback'), $text);
+		}
+		return $text;
+	}
+
+	/**
+	 * Callback for processing abbreviations
+	 * @param  array $matches
+	 * @return string
+	 */
+	protected function _doAbbreviations_callback($matches) {
+		$abbr = $matches[0];
+		if (isset($this->abbr_desciptions[$abbr])) {
+			$desc = $this->abbr_desciptions[$abbr];
+			if (empty($desc)) {
+				return $this->hashPart("$abbr");
+			} else {
+				$desc = $this->encodeAttribute($desc);
+				return $this->hashPart("$abbr");
+			}
+		} else {
+			return $matches[0];
+		}
+	}
+}
diff --git a/vendor/michelf/php-markdown/Michelf/MarkdownInterface.inc.php b/vendor/michelf/php-markdown/Michelf/MarkdownInterface.inc.php
new file mode 100644
index 0000000000..c4e9ac7f64
--- /dev/null
+++ b/vendor/michelf/php-markdown/Michelf/MarkdownInterface.inc.php
@@ -0,0 +1,9 @@
+
+ * @copyright 2004-2016 Michel Fortin 
+ * @copyright (Original Markdown) 2004-2006 John Gruber 
+ */
+
+namespace Michelf;
+
+/**
+ * Markdown Parser Interface 
+ */
+interface MarkdownInterface {
+	/**
+	 * Initialize the parser and return the result of its transform method.
+	 * This will work fine for derived classes too.
+	 *
+	 * @api
+	 *
+	 * @param  string $text
+	 * @return string
+	 */
+	public static function defaultTransform($text);
+
+	/**
+	 * Main function. Performs some preprocessing on the input text
+	 * and pass it through the document gamut.
+	 *
+	 * @api
+	 *
+	 * @param  string $text
+	 * @return string
+	 */
+	public function transform($text);
+}
diff --git a/vendor/michelf/php-markdown/Readme.md b/vendor/michelf/php-markdown/Readme.md
new file mode 100644
index 0000000000..044407106e
--- /dev/null
+++ b/vendor/michelf/php-markdown/Readme.md
@@ -0,0 +1,384 @@
+PHP Markdown
+============
+
+PHP Markdown Lib 1.7.0 - 29 Oct 2016
+
+by Michel Fortin  
+
+
+based on Markdown by John Gruber  
+
+
+
+Introduction
+------------
+
+This is a library package that includes the PHP Markdown parser and its 
+sibling PHP Markdown Extra with additional features.
+
+Markdown is a text-to-HTML conversion tool for web writers. Markdown
+allows you to write using an easy-to-read, easy-to-write plain text
+format, then convert it to structurally valid XHTML (or HTML).
+
+"Markdown" is actually two things: a plain text markup syntax, and a 
+software tool, originally written in Perl, that converts the plain text 
+markup to HTML. PHP Markdown is a port to PHP of the original Markdown 
+program by John Gruber.
+
+*	[Full documentation of the Markdown syntax]()  
+	— Daring Fireball (John Gruber)
+*	[Markdown Extra syntax additions]()  
+	— Michel Fortin
+
+
+Requirement
+-----------
+
+This library package requires PHP 5.3 or later.
+
+Note: The older plugin/library hybrid package for PHP Markdown and
+PHP Markdown Extra is still maintained and will work with PHP 4.0.5 and later.
+
+Before PHP 5.3.7, pcre.backtrack_limit defaults to 100 000, which is too small
+in many situations. You might need to set it to higher values. Later PHP 
+releases defaults to 1 000 000, which is usually fine.
+
+
+Usage
+-----
+
+This library package is meant to be used with class autoloading. For autoloading 
+to work, your project needs have setup a PSR-0-compatible autoloader. See the 
+included Readme.php file for a minimal autoloader setup. (If you cannot use 
+autoloading, see below.)
+
+With class autoloading in place, putting the 'Michelf' folder in your 
+include path should be enough for this to work:
+
+	use \Michelf\Markdown;
+	$my_html = Markdown::defaultTransform($my_text);
+
+Markdown Extra syntax is also available the same way:
+
+	use \Michelf\MarkdownExtra;
+	$my_html = MarkdownExtra::defaultTransform($my_text);
+
+If you wish to use PHP Markdown with another text filter function 
+built to parse HTML, you should filter the text *after* the `transform`
+function call. This is an example with [PHP SmartyPants][psp]:
+
+	use \Michelf\Markdown, \Michelf\SmartyPants;
+	$my_html = Markdown::defaultTransform($my_text);
+	$my_html = SmartyPants::defaultTransform($my_html);
+
+All these examples are using the static `defaultTransform` static function 
+found inside the parser class. If you want to customize the parser 
+configuration, you can also instantiate it directly and change some 
+configuration variables:
+
+	use \Michelf\MarkdownExtra;
+	$parser = new MarkdownExtra;
+	$parser->fn_id_prefix = "post22-";
+	$my_html = $parser->transform($my_text);
+
+To learn more, see the full list of [configuration variables].
+
+ [configuration variables]: https://michelf.ca/projects/php-markdown/configuration/
+
+
+### Usage without an autoloader
+
+If you cannot use class autoloading, you can still use `include` or `require` 
+to access the parser. To load the `\Michelf\Markdown` parser, do it this way:
+
+	require_once 'Michelf/Markdown.inc.php';
+
+Or, if you need the `\Michelf\MarkdownExtra` parser:
+
+	require_once 'Michelf/MarkdownExtra.inc.php';
+
+While the plain `.php` files depend on autoloading to work correctly, using the
+`.inc.php` files instead will eagerly load the dependencies that would be 
+loaded on demand if you were using autoloading.
+
+
+Public API and Versioning Policy
+---------------------------------
+
+Version numbers are of the form *major*.*minor*.*patch*.
+
+The public API of PHP Markdown consist of the two parser classes `Markdown`
+and `MarkdownExtra`, their constructors, the `transform` and `defaultTransform`
+functions and their configuration variables. The public API is stable for
+a given major version number. It might get additions when the minor version
+number increments.
+
+**Protected members are not considered public API.** This is unconventional 
+and deserves an explanation. Incrementing the major version number every time 
+the underlying implementation of something changes is going to give
+nonessential version numbers for the vast majority of people who just use the
+parser.  Protected members are meant to create parser subclasses that behave in
+different ways. Very few people create parser subclasses. I don't want to 
+discourage it by making everything private, but at the same time I can't 
+guarantee any stable hook between versions if you use protected members.
+
+**Syntax changes** will increment the minor number for new features, and the 
+patch number for small corrections. A *new feature* is something that needs a 
+change in the syntax documentation. Note that since PHP Markdown Lib includes
+two parsers, a syntax change for either of them will increment the minor 
+number. Also note that there is nothing perfectly backward-compatible with the
+Markdown syntax: all inputs are always valid, so new features always replace
+something that was previously legal, although generally nonsensical to do.
+
+
+Bugs
+----
+
+To file bug reports please send email to:
+
+
+Please include with your report: (1) the example input; (2) the output you
+expected; (3) the output PHP Markdown actually produced.
+
+If you have a problem where Markdown gives you an empty result, first check 
+that the backtrack limit is not too low by running `php --info | grep pcre`.
+See Installation and Requirement above for details.
+
+
+Development and Testing
+-----------------------
+
+Pull requests for fixing bugs are welcome. Proposed new features are
+going to be meticulously reviewed -- taking into account backward compatibility, 
+potential side effects, and future extensibility -- before deciding on
+acceptance or rejection.
+
+If you make a pull request that includes changes to the parser please add 
+tests for what is being changed to [MDTest][] and make a pull request there 
+too.
+
+ [MDTest]: https://github.com/michelf/mdtest/
+
+
+Donations
+---------
+
+If you wish to make a donation that will help me devote more time to 
+PHP Markdown, please visit [michelf.ca/donate] or send Bitcoin to
+[1HiuX34czvVPPdhXbUAsAu7pZcesniDCGH].
+
+ [michelf.ca/donate]: https://michelf.ca/donate/#!Thanks%20for%20PHP%20Markdown
+ [1HiuX34czvVPPdhXbUAsAu7pZcesniDCGH]: bitcoin:1HiuX34czvVPPdhXbUAsAu7pZcesniDCGH
+
+
+Version History
+---------------
+
+PHP Markdown Lib 1.7.0 (29 Oct 2016)
+
+*	Added a `hard_wrap` configuration variable to make all newline characters 
+	in the text become `
    ` tags in the HTML output. By default, according 
+	to the standard Markdown syntax these newlines are ignored unless they a 
+	preceded by two spaces. Thanks to Jonathan Cohlmeyer for the implementation.
+
+*	Improved the parsing of list items to fix problematic cases that came to 
+	light with the addition of `hard_wrap`. This should have no effect on the 
+	output except span-level list items that ended with two spaces (and thus 
+	ended with a line break).
+
+*	Added a `code_span_content_func` configuration variable which takes a 
+	function that will convert the content of the code span to HTML. This can
+	be useful to implement syntax highlighting. Although contrary to its 
+	code block equivalent, there is no syntax for specifying a language. 
+	Credits to styxit for the implementation.
+
+*	Fixed a Markdwon Extra issue where two-space-at-end-of-line hard breaks 
+	wouldn't work inside of HTML block elements such as `
    ` 
+	where the element expects only span-level content.
+
+*	In the parser code, switched to PHPDoc comment format. Thanks to 
+	Robbie Averill for the help.
+
+
+PHP Markdown Lib 1.6.0 (23 Dec 2015)  
+
+Note: this version was incorrectly released as 1.5.1 on Dec 22, a number 
+that contradicted the versioning policy.
+
+*	For fenced code blocks in Markdown Extra, can now set a class name for the 
+	code block's language before the special attribute block. Previously, this 
+	class name was only allowed in the absence of the special attribute block.
+
+*	Added a `code_block_content_func` configuration variable which takes a 
+	function that will convert the content of the code block to HTML. This is 
+	most useful for syntax highlighting. For fenced code blocks in Markdown 
+	Extra, the function has access to the language class name (the one outside 
+	of the special attribute block). Credits to Mario Konrad for providing the 
+	implementation.
+
+*	The curled arrow character for the backlink in footnotes is now followed
+	by a Unicode variant selector to prevent it from being displayed in emoji
+	form on iOS.
+
+	Note that in older browsers the variant selector is often interpreted as a 
+	separate character, making it visible after the arrow. So there is now a 
+	also a `fn_backlink_html` configuration variable that can be used to set 
+	the link text to something else. Credits to Dana for providing the 
+	implementation.
+
+*	Fixed an issue in MarkdownExtra where long header lines followed by a
+	special attribute block would hit the backtrack limit an cause an empty
+	string to be returned.
+
+
+PHP Markdown Lib 1.5.0 (1 Mar 2015)
+
+*	Added the ability start ordered lists with a number different from 1 and
+	and have that reflected in the HTML output. This can be enabled with
+	the `enhanced_ordered_lists` configuration variable for the Markdown 
+	parser; it is enabled by default for Markdown Extra.
+	Credits to Matt Gorle for providing the implementation.
+
+*	Added the ability to insert custom HTML attributes with simple values 
+	everywhere an extra attribute block is allowed (links, images, headers).
+	The value must be unquoted, cannot contains spaces and is limited to 
+	alphanumeric ASCII characters.
+	Credits to Peter Droogmans for providing the implementation.
+
+*	Added a `header_id_func` configuration variable which takes a function
+	that can generate an `id` attribute value from the header text.
+	Credits to Evert Pot for providing the implementation.
+
+*	Added a `url_filter_func` configuration variable which takes a function
+	that can rewrite any link or image URL to something different.
+
+
+PHP Markdown Lib 1.4.1 (4 May 2014)
+
+*	The HTML block parser will now treat `
    ` as a block-level element
+	(as it should) and no longer wrap it in `
    ` or parse it's content with 
+	the as Markdown syntax (although with Extra you can use `markdown="1"`
+	if you wish to use the Markdown syntax inside it).
+
+*	The content of `