Merge branch '2.6RC'2.6

1 files changed, 0 insertions, 1400 deletions

diff --git a/vendor/pixel418/markdownify/src/Converter.php b/vendor/pixel418/markdownify/src/Converter.php
deleted file mode 100644
index 77c62dc7e..000000000
--- a/vendor/pixel418/markdownify/src/Converter.php
+++ /dev/null
@@ -1,1400 +0,0 @@
-<?php
-
-/* This file is part of the Markdownify project, which is under LGPL license */
-
-namespace Markdownify;
-
-/**
- * default configuration
- */
-define('MDFY_BODYWIDTH', false);
-define('MDFY_KEEPHTML', true);
-
-/**
- * HTML to Markdown converter class
- */
-class Converter
-{
-    /**
-     * html parser object
-     *
-     * @var parseHTML
-     */
-    protected $parser;
-
-    /**
-     * markdown output
-     *
-     * @var string
-     */
-    protected $output;
-
-    /**
-     * stack with tags which where not converted to html
-     *
-     * @var array<string>
-     */
-    protected $notConverted = array();
-
-    /**
-     * skip conversion to markdown
-     *
-     * @var bool
-     */
-    protected $skipConversion = false;
-
-    /* options */
-
-    /**
-     * keep html tags which cannot be converted to markdown
-     *
-     * @var bool
-     */
-    protected $keepHTML = false;
-
-    /**
-     * wrap output, set to 0 to skip wrapping
-     *
-     * @var int
-     */
-    protected $bodyWidth = 0;
-
-    /**
-     * minimum body width
-     *
-     * @var int
-     */
-    protected $minBodyWidth = 25;
-
-    /**
-     * position where the link reference will be displayed
-     *
-     *
-     * @var int
-     */
-    protected $linkPosition;
-    const LINK_AFTER_CONTENT = 0;
-    const LINK_AFTER_PARAGRAPH = 1;
-    const LINK_IN_PARAGRAPH = 2;
-
-    /**
-     * stores current buffers
-     *
-     * @var array<string>
-     */
-    protected $buffer = array();
-
-    /**
-     * stores current buffers
-     *
-     * @var array<string>
-     */
-    protected $footnotes = array();
-
-    /**
-     * tags with elements which can be handled by markdown
-     *
-     * @var array<string>
-     */
-    protected $isMarkdownable = array(
-        'p' => array(),
-        'ul' => array(),
-        'ol' => array(),
-        'li' => array(),
-        'br' => array(),
-        'blockquote' => array(),
-        'code' => array(),
-        'pre' => array(),
-        'a' => array(
-            'href' => 'required',
-            'title' => 'optional',
-        ),
-        'strong' => array(),
-        'b' => array(),
-        'em' => array(),
-        'i' => array(),
-        'img' => array(
-            'src' => 'required',
-            'alt' => 'optional',
-            'title' => 'optional',
-        ),
-        'h1' => array(),
-        'h2' => array(),
-        'h3' => array(),
-        'h4' => array(),
-        'h5' => array(),
-        'h6' => array(),
-        'hr' => array(),
-    );
-
-    /**
-     * html tags to be ignored (contents will be parsed)
-     *
-     * @var array<string>
-     */
-    protected $ignore = array(
-        'html',
-        'body',
-    );
-
-    /**
-     * html tags to be dropped (contents will not be parsed!)
-     *
-     * @var array<string>
-     */
-    protected $drop = array(
-        'script',
-        'head',
-        'style',
-        'form',
-        'area',
-        'object',
-        'param',
-        'iframe',
-    );
-
-    /**
-     * html block tags that allow inline & block children
-     *
-     * @var array<string>
-     */
-    protected $allowMixedChildren = array(
-        'li'
-    );
-
-    /**
-     * Markdown indents which could be wrapped
-     * @note: use strings in regex format
-     *
-     * @var array<string>
-     */
-    protected $wrappableIndents = array(
-        '\*   ', // ul
-        '\d.  ', // ol
-        '\d\d. ', // ol
-        '> ', // blockquote
-        '', // p
-    );
-
-    /**
-     * list of chars which have to be escaped in normal text
-     * @note: use strings in regex format
-     *
-     * @var array
-     *
-     * TODO: what's with block chars / sequences at the beginning of a block?
-     */
-    protected $escapeInText = array(
-        '\*\*([^*]+)\*\*' => '\*\*$1\*\*', // strong
-        '\*([^*]+)\*' => '\*$1\*', // em
-        '__(?! |_)(.+)(?!<_| )__' => '\_\_$1\_\_', // strong
-        '_(?! |_)(.+)(?!<_| )_' => '\_$1\_', // em
-        '([-*_])([ ]{0,2}\1){2,}' => '\\\\$0', // hr
-        '`' => '\`', // code
-        '\[(.+)\](\s*\()' => '\[$1\]$2', // links: [text] (url) => [text\] (url)
-        '\[(.+)\](\s*)\[(.*)\]' => '\[$1\]$2\[$3\]', // links: [text][id] => [text\][id\]
-        '^#(#{0,5}) ' => '\#$1 ', // header
-    );
-
-    /**
-     * wether last processed node was a block tag or not
-     *
-     * @var bool
-     */
-    protected $lastWasBlockTag = false;
-
-    /**
-     * name of last closed tag
-     *
-     * @var string
-     */
-    protected $lastClosedTag = '';
-
-    /**
-     * number of line breaks before next inline output
-     */
-    protected $lineBreaks = 0;
-
-    /**
-     * node stack, e.g. for <a> and <abbr> tags
-     *
-     * @var array<array>
-     */
-    protected $stack = array();
-
-    /**
-     * current indentation
-     *
-     * @var string
-     */
-    protected $indent = '';
-
-    /**
-     * constructor, set options, setup parser
-     *
-     * @param int $linkPosition define the position of links
-     * @param int $bodyWidth whether or not to wrap the output to the given width
-     *             defaults to false
-     * @param bool $keepHTML whether to keep non markdownable HTML or to discard it
-     *             defaults to true (HTML will be kept)
-     * @return void
-     */
-    public function __construct($linkPosition = self::LINK_AFTER_CONTENT, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML)
-    {
-        $this->linkPosition = $linkPosition;
-        $this->keepHTML = $keepHTML;
-
-        if ($bodyWidth > $this->minBodyWidth) {
-            $this->bodyWidth = intval($bodyWidth);
-        } else {
-            $this->bodyWidth = false;
-        }
-
-        $this->parser = new Parser;
-        $this->parser->noTagsInCode = true;
-
-        // we don't have to do this every time
-        $search = array();
-        $replace = array();
-        foreach ($this->escapeInText as $s => $r) {
-            array_push($search, '@(?<!\\\)' . $s . '@U');
-            array_push($replace, $r);
-        }
-        $this->escapeInText = array(
-            'search' => $search,
-            'replace' => $replace
-        );
-    }
-
-    /**
-     * parse a HTML string
-     *
-     * @param string $html
-     * @return string markdown formatted
-     */
-    public function parseString($html)
-    {
-        $this->resetState();
-
-        $this->parser->html = $html;
-        $this->parse();
-
-        return $this->output;
-    }
-
-    /**
-     * set the position where the link reference will be displayed
-     *
-     * @param int $linkPosition
-     * @return void
-     */
-    public function setLinkPosition($linkPosition)
-    {
-        $this->linkPosition = $linkPosition;
-    }
-
-    /**
-     * set keep HTML tags which cannot be converted to markdown
-     *
-     * @param bool $linkPosition
-     * @return void
-     */
-    public function setKeepHTML($keepHTML)
-    {
-        $this->keepHTML = $keepHTML;
-    }
-
-    /**
-     * iterate through the nodes and decide what we
-     * shall do with the current node
-     *
-     * @param void
-     * @return void
-     */
-    protected function parse()
-    {
-        $this->output = '';
-        // drop tags
-        $this->parser->html = preg_replace('#<(' . implode('|', $this->drop) . ')[^>]*>.*</\\1>#sU', '', $this->parser->html);
-        while ($this->parser->nextNode()) {
-            switch ($this->parser->nodeType) {
-                case 'doctype':
-                    break;
-                case 'pi':
-                case 'comment':
-                    if ($this->keepHTML) {
-                        $this->flushLinebreaks();
-                        $this->out($this->parser->node);
-                        $this->setLineBreaks(2);
-                    }
-                    // else drop
-                    break;
-                case 'text':
-                    $this->handleText();
-                    break;
-                case 'tag':
-                    if (in_array($this->parser->tagName, $this->ignore)) {
-                        break;
-                    }
-                    // If the previous tag was not a block element, we simulate a paragraph tag
-                    if ($this->parser->isBlockElement && $this->parser->isNextToInlineContext && !in_array($this->parent(), $this->allowMixedChildren)) {
-                        $this->setLineBreaks(2);
-                    }
-                    if ($this->parser->isStartTag) {
-                        $this->flushLinebreaks();
-                    }
-                    if ($this->skipConversion) {
-                        $this->isMarkdownable(); // update notConverted
-                        $this->handleTagToText();
-                        continue;
-                    }
-
-                    // block elements
-                    if (!$this->parser->keepWhitespace && $this->parser->isBlockElement) {
-                        $this->fixBlockElementSpacing();
-                    }
-
-                    // inline elements
-                    if (!$this->parser->keepWhitespace && $this->parser->isInlineContext) {
-                        $this->fixInlineElementSpacing();
-                    }
-
-                    if ($this->isMarkdownable()) {
-                        if ($this->parser->isBlockElement && $this->parser->isStartTag && !$this->lastWasBlockTag && !empty($this->output)) {
-                            if (!empty($this->buffer)) {
-                                $str =& $this->buffer[count($this->buffer) - 1];
-                            } else {
-                                $str =& $this->output;
-                            }
-                            if (substr($str, -strlen($this->indent) - 1) != "\n" . $this->indent) {
-                                $str .= "\n" . $this->indent;
-                            }
-                        }
-                        $func = 'handleTag_' . $this->parser->tagName;
-                        $this->$func();
-                        if ($this->linkPosition == self::LINK_AFTER_PARAGRAPH && $this->parser->isBlockElement && !$this->parser->isStartTag && empty($this->parser->openTags)) {
-                            $this->flushFootnotes();
-                        }
-                        if (!$this->parser->isStartTag) {
-                            $this->lastClosedTag = $this->parser->tagName;
-                        }
-                    } else {
-                        $this->handleTagToText();
-                        $this->lastClosedTag = '';
-                    }
-                    break;
-                default:
-                    trigger_error('invalid node type', E_USER_ERROR);
-                    break;
-            }
-            $this->lastWasBlockTag = $this->parser->nodeType == 'tag' && $this->parser->isStartTag && $this->parser->isBlockElement;
-        }
-        if (!empty($this->buffer)) {
-            // trigger_error('buffer was not flushed, this is a bug. please report!', E_USER_WARNING);
-            while (!empty($this->buffer)) {
-                $this->out($this->unbuffer());
-            }
-        }
-        // cleanup
-        $this->output = rtrim(str_replace('&amp;', '&', str_replace('&lt;', '<', str_replace('&gt;', '>', $this->output))));
-        // end parsing, flush stacked tags
-        $this->flushFootnotes();
-        $this->stack = array();
-    }
-
-    /**
-     * check if current tag can be converted to Markdown
-     *
-     * @param void
-     * @return bool
-     */
-    protected function isMarkdownable()
-    {
-        if (!isset($this->isMarkdownable[$this->parser->tagName])) {
-            // simply not markdownable
-
-            return false;
-        }
-        if ($this->parser->isStartTag) {
-            $return = true;
-            if ($this->keepHTML) {
-                $diff = array_diff(array_keys($this->parser->tagAttributes), array_keys($this->isMarkdownable[$this->parser->tagName]));
-                if (!empty($diff)) {
-                    // non markdownable attributes given
-                    $return = false;
-                }
-            }
-            if ($return) {
-                foreach ($this->isMarkdownable[$this->parser->tagName] as $attr => $type) {
-                    if ($type == 'required' && !isset($this->parser->tagAttributes[$attr])) {
-                        // required markdown attribute not given
-                        $return = false;
-                        break;
-                    }
-                }
-            }
-            if (!$return) {
-                array_push($this->notConverted, $this->parser->tagName . '::' . implode('/', $this->parser->openTags));
-            }
-
-            return $return;
-        } else {
-            if (!empty($this->notConverted) && end($this->notConverted) === $this->parser->tagName . '::' . implode('/', $this->parser->openTags)) {
-                array_pop($this->notConverted);
-
-                return false;
-            }
-
-            return true;
-        }
-    }
-
-    /**
-     * output footnotes
-     *
-     * @param void
-     * @return void
-     */
-    protected function flushFootnotes()
-    {
-        $out = false;
-        foreach ($this->footnotes as $k => $tag) {
-            if (!isset($tag['unstacked'])) {
-                if (!$out) {
-                    $out = true;
-                    $this->out("\n\n", true);
-                } else {
-                    $this->out("\n", true);
-                }
-                $this->out(' [' . $tag['linkID'] . ']: ' . $this->getLinkReference($tag), true);
-                $tag['unstacked'] = true;
-                $this->footnotes[$k] = $tag;
-            }
-        }
-    }
-
-    /**
-     * return formated link reference
-     *
-     * @param array $tag
-     * @return string link reference
-     */
-    protected function getLinkReference($tag)
-    {
-        return $tag['href'] . (isset($tag['title']) ? ' "' . $tag['title'] . '"' : '');
-    }
-
-    /**
-     * flush enqued linebreaks
-     *
-     * @param void
-     * @return void
-     */
-    protected function flushLinebreaks()
-    {
-        if ($this->lineBreaks && !empty($this->output)) {
-            $this->out(str_repeat("\n" . $this->indent, $this->lineBreaks), true);
-        }
-        $this->lineBreaks = 0;
-    }
-
-    /**
-     * handle non Markdownable tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTagToText()
-    {
-        if (!$this->keepHTML) {
-            if (!$this->parser->isStartTag && $this->parser->isBlockElement) {
-                $this->setLineBreaks(2);
-            }
-        } else {
-            // dont convert to markdown inside this tag
-            /** TODO: markdown extra **/
-            if (!$this->parser->isEmptyTag) {
-                if ($this->parser->isStartTag) {
-                    if (!$this->skipConversion) {
-                        $this->skipConversion = $this->parser->tagName . '::' . implode('/', $this->parser->openTags);
-                    }
-                } else {
-                    if ($this->skipConversion == $this->parser->tagName . '::' . implode('/', $this->parser->openTags)) {
-                        $this->skipConversion = false;
-                    }
-                }
-            }
-
-            if ($this->parser->isBlockElement) {
-                if ($this->parser->isStartTag) {
-                    // looks like ins or del are block elements now
-                    if (in_array($this->parent(), array('ins', 'del'))) {
-                        $this->out("\n", true);
-                        $this->indent('  ');
-                    }
-                    // don't indent inside <pre> tags
-                    if ($this->parser->tagName == 'pre') {
-                        $this->out($this->parser->node);
-                        static $indent;
-                        $indent = $this->indent;
-                        $this->indent = '';
-                    } else {
-                        $this->out($this->parser->node . "\n" . $this->indent);
-                        if (!$this->parser->isEmptyTag) {
-                            $this->indent('  ');
-                        } else {
-                            $this->setLineBreaks(1);
-                        }
-                        $this->parser->html = ltrim($this->parser->html);
-                    }
-                } else {
-                    if (!$this->parser->keepWhitespace) {
-                        $this->output = rtrim($this->output);
-                    }
-                    if ($this->parser->tagName != 'pre') {
-                        $this->indent('  ');
-                        $this->out("\n" . $this->indent . $this->parser->node);
-                    } else {
-                        // reset indentation
-                        $this->out($this->parser->node);
-                        static $indent;
-                        $this->indent = $indent;
-                    }
-
-                    if (in_array($this->parent(), array('ins', 'del'))) {
-                        // ins or del was block element
-                        $this->out("\n");
-                        $this->indent('  ');
-                    }
-                    if ($this->parser->tagName == 'li') {
-                        $this->setLineBreaks(1);
-                    } else {
-                        $this->setLineBreaks(2);
-                    }
-                }
-            } else {
-                $this->out($this->parser->node);
-            }
-            if (in_array($this->parser->tagName, array('code', 'pre'))) {
-                if ($this->parser->isStartTag) {
-                    $this->buffer();
-                } else {
-                    // add stuff so cleanup just reverses this
-                    $this->out(str_replace('&lt;', '&amp;lt;', str_replace('&gt;', '&amp;gt;', $this->unbuffer())));
-                }
-            }
-        }
-    }
-
-    /**
-     * handle plain text
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleText()
-    {
-        if ($this->hasParent('pre') && strpos($this->parser->node, "\n") !== false) {
-            $this->parser->node = str_replace("\n", "\n" . $this->indent, $this->parser->node);
-        }
-        if (!$this->hasParent('code') && !$this->hasParent('pre')) {
-            // entity decode
-            $this->parser->node = $this->decode($this->parser->node);
-            if (!$this->skipConversion) {
-                // escape some chars in normal Text
-                $this->parser->node = preg_replace($this->escapeInText['search'], $this->escapeInText['replace'], $this->parser->node);
-            }
-        } else {
-            $this->parser->node = str_replace(array('&quot;', '&apos'), array('"', '\''), $this->parser->node);
-        }
-        $this->out($this->parser->node);
-        $this->lastClosedTag = '';
-    }
-
-    /**
-     * handle <em> and <i> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_em()
-    {
-        $this->out('_', true);
-    }
-
-    protected function handleTag_i()
-    {
-        $this->handleTag_em();
-    }
-
-    /**
-     * handle <strong> and <b> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_strong()
-    {
-        $this->out('**', true);
-    }
-
-    protected function handleTag_b()
-    {
-        $this->handleTag_strong();
-    }
-
-    /**
-     * handle <h1> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h1()
-    {
-        $this->handleHeader(1);
-    }
-
-    /**
-     * handle <h2> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h2()
-    {
-        $this->handleHeader(2);
-    }
-
-    /**
-     * handle <h3> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h3()
-    {
-        $this->handleHeader(3);
-    }
-
-    /**
-     * handle <h4> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h4()
-    {
-        $this->handleHeader(4);
-    }
-
-    /**
-     * handle <h5> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h5()
-    {
-        $this->handleHeader(5);
-    }
-
-    /**
-     * handle <h6> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h6()
-    {
-        $this->handleHeader(6);
-    }
-
-    /**
-     * handle header tags (<h1> - <h6>)
-     *
-     * @param int $level 1-6
-     * @return void
-     */
-    protected function handleHeader($level)
-    {
-        if ($this->parser->isStartTag) {
-            $this->out(str_repeat('#', $level) . ' ', true);
-        } else {
-            $this->setLineBreaks(2);
-        }
-    }
-
-    /**
-     * handle <p> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_p()
-    {
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(2);
-        }
-    }
-
-    /**
-     * handle <a> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_a()
-    {
-        if ($this->parser->isStartTag) {
-            $this->buffer();
-            $this->handleTag_a_parser();
-            $this->stack();
-        } else {
-            $tag = $this->unstack();
-            $buffer = $this->unbuffer();
-            $this->handleTag_a_converter($tag, $buffer);
-            $this->out($this->handleTag_a_converter($tag, $buffer), true);
-        }
-    }
-
-    /**
-     * handle <a> tags parsing
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_a_parser()
-    {
-        if (isset($this->parser->tagAttributes['title'])) {
-            $this->parser->tagAttributes['title'] = $this->decode($this->parser->tagAttributes['title']);
-        } else {
-            $this->parser->tagAttributes['title'] = null;
-        }
-        $this->parser->tagAttributes['href'] = $this->decode(trim($this->parser->tagAttributes['href']));
-    }
-
-    /**
-     * handle <a> tags conversion
-     *
-     * @param array $tag
-     * @param string $buffer
-     * @return string The markdownified link
-     */
-    protected function handleTag_a_converter($tag, $buffer)
-    {
-        if (empty($tag['href']) && empty($tag['title'])) {
-            // empty links... testcase mania, who would possibly do anything like that?!
-            return '[' . $buffer . ']()';
-        }
-
-        if ($buffer == $tag['href'] && empty($tag['title'])) {
-            // <http://example.com>
-            return '<' . $buffer . '>';
-        }
-
-        $bufferDecoded = $this->decode(trim($buffer));
-        if (substr($tag['href'], 0, 7) == 'mailto:' && 'mailto:' . $bufferDecoded == $tag['href']) {
-            if (is_null($tag['title'])) {
-                // <mail@example.com>
-                return '<' . $bufferDecoded . '>';
-            }
-            // [mail@example.com][1]
-            // ...
-            //  [1]: mailto:mail@example.com Title
-            $tag['href'] = 'mailto:' . $bufferDecoded;
-        }
-
-        if ($this->linkPosition == self::LINK_IN_PARAGRAPH) {
-            return '[' . $buffer . '](' . $this->getLinkReference($tag) . ')';
-        }
-
-        // [This link][id]
-        foreach ($this->footnotes as $tag2) {
-            if ($tag2['href'] == $tag['href'] && $tag2['title'] === $tag['title']) {
-                $tag['linkID'] = $tag2['linkID'];
-                break;
-            }
-        }
-        if (!isset($tag['linkID'])) {
-            $tag['linkID'] = count($this->footnotes) + 1;
-            array_push($this->footnotes, $tag);
-        }
-
-        return '[' . $buffer . '][' . $tag['linkID'] . ']';
-    }
-
-    /**
-     * handle <img /> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_img()
-    {
-        if (!$this->parser->isStartTag) {
-            return; // just to be sure this is really an empty tag...
-        }
-
-        if (isset($this->parser->tagAttributes['title'])) {
-            $this->parser->tagAttributes['title'] = $this->decode($this->parser->tagAttributes['title']);
-        } else {
-            $this->parser->tagAttributes['title'] = null;
-        }
-        if (isset($this->parser->tagAttributes['alt'])) {
-            $this->parser->tagAttributes['alt'] = $this->decode($this->parser->tagAttributes['alt']);
-        } else {
-            $this->parser->tagAttributes['alt'] = null;
-        }
-
-        if (empty($this->parser->tagAttributes['src'])) {
-            // support for "empty" images... dunno if this is really needed
-            // but there are some test cases which do that...
-            if (!empty($this->parser->tagAttributes['title'])) {
-                $this->parser->tagAttributes['title'] = ' ' . $this->parser->tagAttributes['title'] . ' ';
-            }
-            $this->out('![' . $this->parser->tagAttributes['alt'] . '](' . $this->parser->tagAttributes['title'] . ')', true);
-
-            return;
-        } else {
-            $this->parser->tagAttributes['src'] = $this->decode($this->parser->tagAttributes['src']);
-        }
-
-        $out = '![' . $this->parser->tagAttributes['alt'] . ']';
-        if ($this->linkPosition == self::LINK_IN_PARAGRAPH) {
-            $out .= '(' . $this->parser->tagAttributes['src'];
-            if ($this->parser->tagAttributes['title']) {
-                $out .= ' "' . $this->parser->tagAttributes['title'] . '"';
-            }
-            $out .= ')';
-            $this->out($out, true);
-            return;
-        }
-
-        // ![This image][id]
-        $link_id = false;
-        if (!empty($this->footnotes)) {
-            foreach ($this->footnotes as $tag) {
-                if ($tag['href'] == $this->parser->tagAttributes['src']
-                    && $tag['title'] === $this->parser->tagAttributes['title']
-                ) {
-                    $link_id = $tag['linkID'];
-                    break;
-                }
-            }
-        }
-        if (!$link_id) {
-            $link_id = count($this->footnotes) + 1;
-            $tag = array(
-                'href' => $this->parser->tagAttributes['src'],
-                'linkID' => $link_id,
-                'title' => $this->parser->tagAttributes['title']
-            );
-            array_push($this->footnotes, $tag);
-        }
-        $out .= '[' . $link_id . ']';
-
-        $this->out($out, true);
-    }
-
-    /**
-     * handle <code> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_code()
-    {
-        if ($this->hasParent('pre')) {
-            // ignore code blocks inside <pre>
-
-            return;
-        }
-        if ($this->parser->isStartTag) {
-            $this->buffer();
-        } else {
-            $buffer = $this->unbuffer();
-            // use as many backticks as needed
-            preg_match_all('#`+#', $buffer, $matches);
-            if (!empty($matches[0])) {
-                rsort($matches[0]);
-
-                $ticks = '`';
-                while (true) {
-                    if (!in_array($ticks, $matches[0])) {
-                        break;
-                    }
-                    $ticks .= '`';
-                }
-            } else {
-                $ticks = '`';
-            }
-            if ($buffer[0] == '`' || substr($buffer, -1) == '`') {
-                $buffer = ' ' . $buffer . ' ';
-            }
-            $this->out($ticks . $buffer . $ticks, true);
-        }
-    }
-
-    /**
-     * handle <pre> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_pre()
-    {
-        if ($this->keepHTML && $this->parser->isStartTag) {
-            // check if a simple <code> follows
-            if (!preg_match('#^\s*<code\s*>#Us', $this->parser->html)) {
-                // this is no standard markdown code block
-                $this->handleTagToText();
-
-                return;
-            }
-        }
-        $this->indent('    ');
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(2);
-        } else {
-            $this->parser->html = ltrim($this->parser->html);
-        }
-    }
-
-    /**
-     * handle <blockquote> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_blockquote()
-    {
-        $this->indent('> ');
-    }
-
-    /**
-     * handle <ul> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_ul()
-    {
-        if ($this->parser->isStartTag) {
-            $this->stack();
-            if (!$this->keepHTML && $this->lastClosedTag == $this->parser->tagName) {
-                $this->out("\n" . $this->indent . '<!-- -->' . "\n" . $this->indent . "\n" . $this->indent);
-            }
-        } else {
-            $this->unstack();
-            if ($this->parent() != 'li' || preg_match('#^\s*(</li\s*>\s*<li\s*>\s*)?<(p|blockquote)\s*>#sU', $this->parser->html)) {
-                // dont make Markdown add unneeded paragraphs
-                $this->setLineBreaks(2);
-            }
-        }
-    }
-
-    /**
-     * handle <ul> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_ol()
-    {
-        // same as above
-        $this->parser->tagAttributes['num'] = 0;
-        $this->handleTag_ul();
-    }
-
-    /**
-     * handle <li> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_li()
-    {
-        if ($this->parent() == 'ol') {
-            $parent =& $this->getStacked('ol');
-            if ($this->parser->isStartTag) {
-                $parent['num']++;
-                $this->out(str_repeat(' ', 3 - strlen($parent['num'])) . $parent['num'] . '. ', true);
-            }
-        } else {
-            if ($this->parser->isStartTag) {
-                $this->out('  * ', true);
-            }
-        }
-        $this->indent('    ', false);
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(1);
-        }
-    }
-
-    /**
-     * handle <hr /> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_hr()
-    {
-        if (!$this->parser->isStartTag) {
-            return; // just to be sure this really is an empty tag
-        }
-        $this->out('* * *', true);
-        $this->setLineBreaks(2);
-    }
-
-    /**
-     * handle <br /> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_br()
-    {
-        $this->out("  \n" . $this->indent, true);
-        $this->parser->html = ltrim($this->parser->html);
-    }
-
-    /**
-     * add current node to the stack
-     * this only stores the attributes
-     *
-     * @param void
-     * @return void
-     */
-    protected function stack()
-    {
-        if (!isset($this->stack[$this->parser->tagName])) {
-            $this->stack[$this->parser->tagName] = array();
-        }
-        array_push($this->stack[$this->parser->tagName], $this->parser->tagAttributes);
-    }
-
-    /**
-     * remove current tag from stack
-     *
-     * @param void
-     * @return array
-     */
-    protected function unstack()
-    {
-        if (!isset($this->stack[$this->parser->tagName]) || !is_array($this->stack[$this->parser->tagName])) {
-            trigger_error('Trying to unstack from empty stack. This must not happen.', E_USER_ERROR);
-        }
-
-        return array_pop($this->stack[$this->parser->tagName]);
-    }
-
-    /**
-     * get last stacked element of type $tagName
-     *
-     * @param string $tagName
-     * @return array
-     */
-    protected function &getStacked($tagName)
-    {
-        // no end() so it can be referenced
-        return $this->stack[$tagName][count($this->stack[$tagName]) - 1];
-    }
-
-    /**
-     * set number of line breaks before next start tag
-     *
-     * @param int $number
-     * @return void
-     */
-    protected function setLineBreaks($number)
-    {
-        if ($this->lineBreaks < $number) {
-            $this->lineBreaks = $number;
-        }
-    }
-
-    /**
-     * buffer next parser output until unbuffer() is called
-     *
-     * @param void
-     * @return void
-     */
-    protected function buffer()
-    {
-        array_push($this->buffer, '');
-    }
-
-    /**
-     * end current buffer and return buffered output
-     *
-     * @param void
-     * @return string
-     */
-    protected function unbuffer()
-    {
-        return array_pop($this->buffer);
-    }
-
-    /**
-     * append string to the correct var, either
-     * directly to $this->output or to the current
-     * buffers
-     *
-     * @param string $put
-     * @param boolean $nowrap
-     * @return void
-     */
-    protected function out($put, $nowrap = false)
-    {
-        if (empty($put)) {
-            return;
-        }
-        if (!empty($this->buffer)) {
-            $this->buffer[count($this->buffer) - 1] .= $put;
-        } else {
-            if ($this->bodyWidth && !$this->parser->keepWhitespace) { // wrap lines
-                // get last line
-                $pos = strrpos($this->output, "\n");
-                if ($pos === false) {
-                    $line = $this->output;
-                } else {
-                    $line = substr($this->output, $pos);
-                }
-
-                if ($nowrap) {
-                    if ($put[0] != "\n" && $this->strlen($line) + $this->strlen($put) > $this->bodyWidth) {
-                        $this->output .= "\n" . $this->indent . $put;
-                    } else {
-                        $this->output .= $put;
-                    }
-
-                    return;
-                } else {
-                    $put .= "\n"; // make sure we get all lines in the while below
-                    $lineLen = $this->strlen($line);
-                    while ($pos = strpos($put, "\n")) {
-                        $putLine = substr($put, 0, $pos + 1);
-                        $put = substr($put, $pos + 1);
-                        $putLen = $this->strlen($putLine);
-                        if ($lineLen + $putLen < $this->bodyWidth) {
-                            $this->output .= $putLine;
-                            $lineLen = $putLen;
-                        } else {
-                            $split = preg_split('#^(.{0,' . ($this->bodyWidth - $lineLen) . '})\b#', $putLine, 2, PREG_SPLIT_OFFSET_CAPTURE | PREG_SPLIT_DELIM_CAPTURE);
-                            $this->output .= rtrim($split[1][0]) . "\n" . $this->indent . $this->wordwrap(ltrim($split[2][0]), $this->bodyWidth, "\n" . $this->indent, false);
-                        }
-                    }
-                    $this->output = substr($this->output, 0, -1);
-
-                    return;
-                }
-            } else {
-                $this->output .= $put;
-            }
-        }
-    }
-
-    /**
-     * indent next output (start tag) or unindent (end tag)
-     *
-     * @param string $str indentation
-     * @param bool $output add indendation to output
-     * @return void
-     */
-    protected function indent($str, $output = true)
-    {
-        if ($this->parser->isStartTag) {
-            $this->indent .= $str;
-            if ($output) {
-                $this->out($str, true);
-            }
-        } else {
-            $this->indent = substr($this->indent, 0, -strlen($str));
-        }
-    }
-
-    /**
-     * decode email addresses
-     *
-     * @author derernst@gmx.ch <http://www.php.net/manual/en/function.html-entity-decode.php#68536>
-     * @author Milian Wolff <http://milianw.de>
-     */
-    protected function decode($text, $quote_style = ENT_QUOTES)
-    {
-        return htmlspecialchars_decode($text, $quote_style);
-    }
-
-    /**
-     * callback for decode() which converts a hexadecimal entity to UTF-8
-     *
-     * @param array $matches
-     * @return string UTF-8 encoded
-     */
-    protected function _decode_hex($matches)
-    {
-        return $this->unichr(hexdec($matches[1]));
-    }
-
-    /**
-     * callback for decode() which converts a numerical entity to UTF-8
-     *
-     * @param array $matches
-     * @return string UTF-8 encoded
-     */
-    protected function _decode_numeric($matches)
-    {
-        return $this->unichr($matches[1]);
-    }
-
-    /**
-     * UTF-8 chr() which supports numeric entities
-     *
-     * @author grey - greywyvern - com <http://www.php.net/manual/en/function.chr.php#55978>
-     * @param array $matches
-     * @return string UTF-8 encoded
-     */
-    protected function unichr($dec)
-    {
-        if ($dec < 128) {
-            $utf = chr($dec);
-        } elseif ($dec < 2048) {
-            $utf = chr(192 + (($dec - ($dec % 64)) / 64));
-            $utf .= chr(128 + ($dec % 64));
-        } else {
-            $utf = chr(224 + (($dec - ($dec % 4096)) / 4096));
-            $utf .= chr(128 + ((($dec % 4096) - ($dec % 64)) / 64));
-            $utf .= chr(128 + ($dec % 64));
-        }
-
-        return $utf;
-    }
-
-    /**
-     * UTF-8 strlen()
-     *
-     * @param string $str
-     * @return int
-     *
-     * @author dtorop 932 at hotmail dot com <http://www.php.net/manual/en/function.strlen.php#37975>
-     * @author Milian Wolff <http://milianw.de>
-     */
-    protected function strlen($str)
-    {
-        if (function_exists('mb_strlen')) {
-            return mb_strlen($str, 'UTF-8');
-        } else {
-            return preg_match_all('/[\x00-\x7F\xC0-\xFD]/', $str, $var_empty);
-        }
-    }
-
-    /**
-     * wordwrap for utf8 encoded strings
-     *
-     * @param string $str
-     * @param integer $len
-     * @param string $what
-     * @return string
-     */
-    protected function wordwrap($str, $width, $break, $cut = false)
-    {
-        if (!$cut) {
-            $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){1,' . $width . '}\b#';
-        } else {
-            $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){' . $width . '}#';
-        }
-        $return = '';
-        while (preg_match($regexp, $str, $matches)) {
-            $string = $matches[0];
-            $str = ltrim(substr($str, strlen($string)));
-            if (!$cut && isset($str[0]) && in_array($str[0], array('.', '!', ';', ':', '?', ','))) {
-                $string .= $str[0];
-                $str = ltrim(substr($str, 1));
-            }
-            $return .= $string . $break;
-        }
-
-        return $return . ltrim($str);
-    }
-
-    /**
-     * check if current node has a $tagName as parent (somewhere, not only the direct parent)
-     *
-     * @param string $tagName
-     * @return bool
-     */
-    protected function hasParent($tagName)
-    {
-        return in_array($tagName, $this->parser->openTags);
-    }
-
-    /**
-     * get tagName of direct parent tag
-     *
-     * @param void
-     * @return string $tagName
-     */
-    protected function parent()
-    {
-        return end($this->parser->openTags);
-    }
-
-    /**
-     * Trims whitespace in block-level elements, on the left side.
-     */
-    protected function fixBlockElementSpacing()
-    {
-        if ($this->parser->isStartTag) {
-            $this->parser->html = ltrim($this->parser->html);
-        }
-    }
-
-    /**
-     * Moves leading/trailing whitespace from inline elements outside of the
-     * element. This is to fix cases like `<strong> Text</strong>`, which if
-     * converted to `** strong**` would be incorrect Markdown.
-     *
-     * Examples:
-     *
-     *   * leading: `<strong> Text</strong>` becomes ` <strong>Text</strong>`
-     *   * trailing: `<strong>Text </strong>` becomes `<strong>Text</strong> `
-     */
-    protected function fixInlineElementSpacing()
-    {
-        if ($this->parser->isStartTag) {
-            // move spaces after the start element to before the element
-            if (preg_match('~^(\s+)~', $this->parser->html, $matches)) {
-                $this->out($matches[1]);
-                $this->parser->html = ltrim($this->parser->html, " \t\0\x0B");
-            }
-        } else {
-            if (!empty($this->buffer)) {
-                $str =& $this->buffer[count($this->buffer) - 1];
-            } else {
-                $str =& $this->output;
-            }
-
-            // move spaces before the end element to after the element
-            if (preg_match('~(\s+)$~', $str, $matches)) {
-                $str = rtrim($str, " \t\0\x0B");
-                $this->parser->html = $matches[1] . $this->parser->html;
-            }
-        }
-    }
-
-    /**
-     * Resetting the state forces the instance to behave as a fresh instance.
-     * Ideal for running within a loop where you want to maintain a single instance.
-     */
-    protected function resetState()
-    {
-        $this->notConverted = array();
-        $this->skipConversion = false;
-        $this->buffer = array();
-        $this->indent = '';
-        $this->stack = array();
-        $this->lineBreaks = 0;
-        $this->lastClosedTag = '';
-        $this->lastWasBlockTag = false;
-        $this->footnotes = array();
-    }
-}