feat(deps): add parsedown and parsedown-extra

vendor/erusev/parsedown-extra/.travis.yml

@@ -0,0 +1,30 @@
+language: php
+
+dist: trusty
+sudo: false
+
+matrix:
+  include:
+    - php: 5.3
+      dist: precise
+    - php: 5.4
+    - php: 5.5
+    - php: 5.6
+    - php: 7.0
+    - php: 7.1
+    - php: 7.2
+    - php: 7.3
+    - php: 7.4
+    - php: nightly
+  fast_finish: true
+  allow_failures:
+    - php: nightly
+    - php: hhvm-nightly
+
+install:
+  - composer install --prefer-source
+
+script:
+  - vendor/bin/phpunit
+  - vendor/bin/phpunit vendor/erusev/parsedown/test/CommonMarkTestWeak.php || true
+  - '[ -z "$TRAVIS_TAG" ] || [ "$TRAVIS_TAG" == "$(php -r "require(\"ParsedownExtra.php\"); echo ParsedownExtra::version;")" ]'

vendor/erusev/parsedown-extra/LICENSE.txt

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Emanuil Rusev, erusev.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/erusev/parsedown-extra/ParsedownExtra.php

@@ -0,0 +1,538 @@
+<?php
+
+#
+#
+# Parsedown Extra
+# https://github.com/erusev/parsedown-extra
+#
+# (c) Emanuil Rusev
+# http://erusev.com
+#
+# For the full license information, view the LICENSE file that was distributed
+# with this source code.
+#
+#
+
+class ParsedownExtra extends Parsedown
+{
+    # ~
+
+    const version = '0.8.1';
+
+    # ~
+
+    function __construct()
+    {
+        if (version_compare(parent::version, '1.7.4') < 0)
+        {
+            throw new Exception('ParsedownExtra requires a later version of Parsedown');
+        }
+
+        $this->BlockTypes[':'] []= 'DefinitionList';
+        $this->BlockTypes['*'] []= 'Abbreviation';
+
+        # identify footnote definitions before reference definitions
+        array_unshift($this->BlockTypes['['], 'Footnote');
+
+        # identify footnote markers before before links
+        array_unshift($this->InlineTypes['['], 'FootnoteMarker');
+    }
+
+    #
+    # ~
+
+    function text($text)
+    {
+        $markup = parent::text($text);
+
+        # merge consecutive dl elements
+
+        $markup = preg_replace('/<\/dl>\s+<dl>\s+/', '', $markup);
+
+        # add footnotes
+
+        if (isset($this->DefinitionData['Footnote']))
+        {
+            $Element = $this->buildFootnoteElement();
+
+            $markup .= "\n" . $this->element($Element);
+        }
+
+        return $markup;
+    }
+
+    #
+    # Blocks
+    #
+
+    #
+    # Abbreviation
+
+    protected function blockAbbreviation($Line)
+    {
+        if (preg_match('/^\*\[(.+?)\]:[ ]*(.+?)[ ]*$/', $Line['text'], $matches))
+        {
+            $this->DefinitionData['Abbreviation'][$matches[1]] = $matches[2];
+
+            $Block = array(
+                'hidden' => true,
+            );
+
+            return $Block;
+        }
+    }
+
+    #
+    # Footnote
+
+    protected function blockFootnote($Line)
+    {
+        if (preg_match('/^\[\^(.+?)\]:[ ]?(.*)$/', $Line['text'], $matches))
+        {
+            $Block = array(
+                'label' => $matches[1],
+                'text' => $matches[2],
+                'hidden' => true,
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockFootnoteContinue($Line, $Block)
+    {
+        if ($Line['text'][0] === '[' and preg_match('/^\[\^(.+?)\]:/', $Line['text']))
+        {
+            return;
+        }
+
+        if (isset($Block['interrupted']))
+        {
+            if ($Line['indent'] >= 4)
+            {
+                $Block['text'] .= "\n\n" . $Line['text'];
+
+                return $Block;
+            }
+        }
+        else
+        {
+            $Block['text'] .= "\n" . $Line['text'];
+
+            return $Block;
+        }
+    }
+
+    protected function blockFootnoteComplete($Block)
+    {
+        $this->DefinitionData['Footnote'][$Block['label']] = array(
+            'text' => $Block['text'],
+            'count' => null,
+            'number' => null,
+        );
+
+        return $Block;
+    }
+
+    #
+    # Definition List
+
+    protected function blockDefinitionList($Line, $Block)
+    {
+        if ( ! isset($Block) or isset($Block['type']))
+        {
+            return;
+        }
+
+        $Element = array(
+            'name' => 'dl',
+            'handler' => 'elements',
+            'text' => array(),
+        );
+
+        $terms = explode("\n", $Block['element']['text']);
+
+        foreach ($terms as $term)
+        {
+            $Element['text'] []= array(
+                'name' => 'dt',
+                'handler' => 'line',
+                'text' => $term,
+            );
+        }
+
+        $Block['element'] = $Element;
+
+        $Block = $this->addDdElement($Line, $Block);
+
+        return $Block;
+    }
+
+    protected function blockDefinitionListContinue($Line, array $Block)
+    {
+        if ($Line['text'][0] === ':')
+        {
+            $Block = $this->addDdElement($Line, $Block);
+
+            return $Block;
+        }
+        else
+        {
+            if (isset($Block['interrupted']) and $Line['indent'] === 0)
+            {
+                return;
+            }
+
+            if (isset($Block['interrupted']))
+            {
+                $Block['dd']['handler'] = 'text';
+                $Block['dd']['text'] .= "\n\n";
+
+                unset($Block['interrupted']);
+            }
+
+            $text = substr($Line['body'], min($Line['indent'], 4));
+
+            $Block['dd']['text'] .= "\n" . $text;
+
+            return $Block;
+        }
+    }
+
+    #
+    # Header
+
+    protected function blockHeader($Line)
+    {
+        $Block = parent::blockHeader($Line);
+
+        if (! isset($Block)) {
+            return null;
+        }
+
+        if (preg_match('/[ #]*{('.$this->regexAttribute.'+)}[ ]*$/', $Block['element']['text'], $matches, PREG_OFFSET_CAPTURE))
+        {
+            $attributeString = $matches[1][0];
+
+            $Block['element']['attributes'] = $this->parseAttributeData($attributeString);
+
+            $Block['element']['text'] = substr($Block['element']['text'], 0, $matches[0][1]);
+        }
+
+        return $Block;
+    }
+
+    #
+    # Markup
+
+    protected function blockMarkupComplete($Block)
+    {
+        if ( ! isset($Block['void']))
+        {
+            $Block['markup'] = $this->processTag($Block['markup']);
+        }
+
+        return $Block;
+    }
+
+    #
+    # Setext
+
+    protected function blockSetextHeader($Line, array $Block = null)
+    {
+        $Block = parent::blockSetextHeader($Line, $Block);
+
+        if (! isset($Block)) {
+            return null;
+        }
+
+        if (preg_match('/[ ]*{('.$this->regexAttribute.'+)}[ ]*$/', $Block['element']['text'], $matches, PREG_OFFSET_CAPTURE))
+        {
+            $attributeString = $matches[1][0];
+
+            $Block['element']['attributes'] = $this->parseAttributeData($attributeString);
+
+            $Block['element']['text'] = substr($Block['element']['text'], 0, $matches[0][1]);
+        }
+
+        return $Block;
+    }
+
+    #
+    # Inline Elements
+    #
+
+    #
+    # Footnote Marker
+
+    protected function inlineFootnoteMarker($Excerpt)
+    {
+        if (preg_match('/^\[\^(.+?)\]/', $Excerpt['text'], $matches))
+        {
+            $name = $matches[1];
+
+            if ( ! isset($this->DefinitionData['Footnote'][$name]))
+            {
+                return;
+            }
+
+            $this->DefinitionData['Footnote'][$name]['count'] ++;
+
+            if ( ! isset($this->DefinitionData['Footnote'][$name]['number']))
+            {
+                $this->DefinitionData['Footnote'][$name]['number'] = ++ $this->footnoteCount; # » &
+            }
+
+            $Element = array(
+                'name' => 'sup',
+                'attributes' => array('id' => 'fnref'.$this->DefinitionData['Footnote'][$name]['count'].':'.$name),
+                'handler' => 'element',
+                'text' => array(
+                    'name' => 'a',
+                    'attributes' => array('href' => '#fn:'.$name, 'class' => 'footnote-ref'),
+                    'text' => $this->DefinitionData['Footnote'][$name]['number'],
+                ),
+            );
+
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => $Element,
+            );
+        }
+    }
+
+    private $footnoteCount = 0;
+
+    #
+    # Link
+
+    protected function inlineLink($Excerpt)
+    {
+        $Link = parent::inlineLink($Excerpt);
+
+        if (! isset($Link)) {
+            return null;
+        }
+
+        $remainder = substr($Excerpt['text'], $Link['extent']);
+
+        if (preg_match('/^[ ]*{('.$this->regexAttribute.'+)}/', $remainder, $matches))
+        {
+            $Link['element']['attributes'] += $this->parseAttributeData($matches[1]);
+
+            $Link['extent'] += strlen($matches[0]);
+        }
+
+        return $Link;
+    }
+
+    #
+    # ~
+    #
+
+    protected function unmarkedText($text)
+    {
+        $text = parent::unmarkedText($text);
+
+        if (isset($this->DefinitionData['Abbreviation']))
+        {
+            foreach ($this->DefinitionData['Abbreviation'] as $abbreviation => $meaning)
+            {
+                $pattern = '/\b'.preg_quote($abbreviation, '/').'\b/';
+
+                $text = preg_replace($pattern, '<abbr title="'.$meaning.'">'.$abbreviation.'</abbr>', $text);
+            }
+        }
+
+        return $text;
+    }
+
+    #
+    # Util Methods
+    #
+
+    protected function addDdElement(array $Line, array $Block)
+    {
+        $text = substr($Line['text'], 1);
+        $text = trim($text);
+
+        unset($Block['dd']);
+
+        $Block['dd'] = array(
+            'name' => 'dd',
+            'handler' => 'line',
+            'text' => $text,
+        );
+
+        if (isset($Block['interrupted']))
+        {
+            $Block['dd']['handler'] = 'text';
+
+            unset($Block['interrupted']);
+        }
+
+        $Block['element']['text'] []= & $Block['dd'];
+
+        return $Block;
+    }
+
+    protected function buildFootnoteElement()
+    {
+        $Element = array(
+            'name' => 'div',
+            'attributes' => array('class' => 'footnotes'),
+            'handler' => 'elements',
+            'text' => array(
+                array(
+                    'name' => 'hr',
+                ),
+                array(
+                    'name' => 'ol',
+                    'handler' => 'elements',
+                    'text' => array(),
+                ),
+            ),
+        );
+
+        uasort($this->DefinitionData['Footnote'], 'self::sortFootnotes');
+
+        foreach ($this->DefinitionData['Footnote'] as $definitionId => $DefinitionData)
+        {
+            if ( ! isset($DefinitionData['number']))
+            {
+                continue;
+            }
+
+            $text = $DefinitionData['text'];
+
+            $text = parent::text($text);
+
+            $numbers = range(1, $DefinitionData['count']);
+
+            $backLinksMarkup = '';
+
+            foreach ($numbers as $number)
+            {
+                $backLinksMarkup .= ' <a href="#fnref'.$number.':'.$definitionId.'" rev="footnote" class="footnote-backref">&#8617;</a>';
+            }
+
+            $backLinksMarkup = substr($backLinksMarkup, 1);
+
+            if (substr($text, - 4) === '</p>')
+            {
+                $backLinksMarkup = '&#160;'.$backLinksMarkup;
+
+                $text = substr_replace($text, $backLinksMarkup.'</p>', - 4);
+            }
+            else
+            {
+                $text .= "\n".'<p>'.$backLinksMarkup.'</p>';
+            }
+
+            $Element['text'][1]['text'] []= array(
+                'name' => 'li',
+                'attributes' => array('id' => 'fn:'.$definitionId),
+                'rawHtml' => "\n".$text."\n",
+            );
+        }
+
+        return $Element;
+    }
+
+    # ~
+
+    protected function parseAttributeData($attributeString)
+    {
+        $Data = array();
+
+        $attributes = preg_split('/[ ]+/', $attributeString, - 1, PREG_SPLIT_NO_EMPTY);
+
+        foreach ($attributes as $attribute)
+        {
+            if ($attribute[0] === '#')
+            {
+                $Data['id'] = substr($attribute, 1);
+            }
+            else # "."
+            {
+                $classes []= substr($attribute, 1);
+            }
+        }
+
+        if (isset($classes))
+        {
+            $Data['class'] = implode(' ', $classes);
+        }
+
+        return $Data;
+    }
+
+    # ~
+
+    protected function processTag($elementMarkup) # recursive
+    {
+        # http://stackoverflow.com/q/1148928/200145
+        libxml_use_internal_errors(true);
+
+        $DOMDocument = new DOMDocument;
+
+        # http://stackoverflow.com/q/11309194/200145
+        $elementMarkup = mb_convert_encoding($elementMarkup, 'HTML-ENTITIES', 'UTF-8');
+
+        # http://stackoverflow.com/q/4879946/200145
+        $DOMDocument->loadHTML($elementMarkup);
+        $DOMDocument->removeChild($DOMDocument->doctype);
+        $DOMDocument->replaceChild($DOMDocument->firstChild->firstChild->firstChild, $DOMDocument->firstChild);
+
+        $elementText = '';
+
+        if ($DOMDocument->documentElement->getAttribute('markdown') === '1')
+        {
+            foreach ($DOMDocument->documentElement->childNodes as $Node)
+            {
+                $elementText .= $DOMDocument->saveHTML($Node);
+            }
+
+            $DOMDocument->documentElement->removeAttribute('markdown');
+
+            $elementText = "\n".$this->text($elementText)."\n";
+        }
+        else
+        {
+            foreach ($DOMDocument->documentElement->childNodes as $Node)
+            {
+                $nodeMarkup = $DOMDocument->saveHTML($Node);
+
+                if ($Node instanceof DOMElement and ! in_array($Node->nodeName, $this->textLevelElements))
+                {
+                    $elementText .= $this->processTag($nodeMarkup);
+                }
+                else
+                {
+                    $elementText .= $nodeMarkup;
+                }
+            }
+        }
+
+        # because we don't want for markup to get encoded
+        $DOMDocument->documentElement->nodeValue = 'placeholder\x1A';
+
+        $markup = $DOMDocument->saveHTML($DOMDocument->documentElement);
+        $markup = str_replace('placeholder\x1A', $elementText, $markup);
+
+        return $markup;
+    }
+
+    # ~
+
+    protected function sortFootnotes($A, $B) # callback
+    {
+        return $A['number'] - $B['number'];
+    }
+
+    #
+    # Fields
+    #
+
+    protected $regexAttribute = '(?:[#.][-\w]+[ ]*)';
+}

vendor/erusev/parsedown-extra/README.md

@@ -0,0 +1,31 @@
+> You might also like [Caret](http://caret.io?ref=parsedown) - our Markdown editor for the Desktop.
+
+## Parsedown Extra
+
+[![Build Status](https://img.shields.io/travis/erusev/parsedown-extra/master.svg?style=flat-square)](https://travis-ci.org/erusev/parsedown-extra)
+
+An extension of [Parsedown](http://parsedown.org) that adds support for [Markdown Extra](https://michelf.ca/projects/php-markdown/extra/).
+
+[See Demo](http://parsedown.org/extra/)
+
+### Installation
+
+Include both `Parsedown.php` and `ParsedownExtra.php` or install [the composer package](https://packagist.org/packages/erusev/parsedown-extra).
+
+### Example
+
+``` php
+$Extra = new ParsedownExtra();
+
+echo $Extra->text('# Header {.sth}'); # prints: <h1 class="sth">Header</h1>
+```
+
+### Questions
+
+**Who uses Parsedown Extra?**
+
+[October CMS](http://octobercms.com/), [Bolt CMS](http://bolt.cm/), [Kirby CMS](http://getkirby.com/), [Grav CMS](http://getgrav.org/), [Statamic CMS](http://www.statamic.com/) and [more](https://www.versioneye.com/php/erusev:parsedown-extra/references).
+
+**How can I help?**
+
+Use it, star it, share it and in case you feel generous, [donate some money](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=528P3NZQMP8N2).

vendor/erusev/parsedown-extra/composer.json

@@ -0,0 +1,33 @@
+{
+    "name": "erusev/parsedown-extra",
+    "description": "An extension of Parsedown that adds support for Markdown Extra.",
+    "keywords": ["markdown", "markdown extra", "parser", "parsedown"],
+    "homepage": "https://github.com/erusev/parsedown-extra",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Emanuil Rusev",
+            "email": "hello@erusev.com",
+            "homepage": "http://erusev.com"
+        }
+    ],
+    "require": {
+        "erusev/parsedown": "^1.7.4"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^4.8.35"
+    },
+    "autoload": {
+        "psr-0": {"ParsedownExtra": ""}
+    },
+    "autoload-dev": {
+        "psr-0": {
+            "TestParsedown": "test/",
+            "ParsedownExtraTest": "test/",
+            "ParsedownTest": "vendor/erusev/parsedown/test/",
+            "CommonMarkTest": "vendor/erusev/parsedown/test/",
+            "CommonMarkTestWeak": "vendor/erusev/parsedown/test/"
+        }
+    }
+}

vendor/erusev/parsedown-extra/phpunit.xml.dist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="vendor/autoload.php" colors="true">
+	<testsuites>
+		<testsuite>
+			<file>test/ParsedownExtraTest.php</file>
+		</testsuite>
+	</testsuites>
+</phpunit>

vendor/erusev/parsedown-extra/test/ParsedownExtraTest.php

@@ -0,0 +1,11 @@
+<?php
+
+class ParsedownExtraTest extends ParsedownTest
+{
+    protected function initDirs()
+    {
+        $dirs = parent::initDirs();
+        $dirs[] = __DIR__ . '/data/';
+        return $dirs;
+    }
+}

vendor/erusev/parsedown-extra/test/TestParsedown.php

@@ -0,0 +1,9 @@
+<?php
+
+class TestParsedown extends ParsedownExtra
+{
+    public function getTextLevelElements()
+    {
+        return $this->textLevelElements;
+    }
+}

vendor/erusev/parsedown-extra/test/data/abbreviation.html

@@ -0,0 +1,3 @@
+<p>The <abbr title="Hyper Text Markup Language">HTML</abbr> specification
+is maintained by the <abbr title="World Wide Web Consortium">W3C</abbr>.
+The abbreviation <abbr title="Markup Language">ML</abbr> is contained in the abbreviation <abbr title="Hyper Text Markup Language">HTML</abbr>.</p>

vendor/erusev/parsedown-extra/test/data/abbreviation.md

@@ -0,0 +1,7 @@
+The HTML specification
+is maintained by the W3C.
+The abbreviation ML is contained in the abbreviation HTML.
+
+*[HTML]: Hyper Text Markup Language
+*[W3C]: World Wide Web Consortium
+*[ML]: Markup Language

vendor/erusev/parsedown-extra/test/data/compound_footnote.html

@@ -0,0 +1,18 @@
+<p>footnote <sup id="fnref1:1"><a href="#fn:1" class="footnote-ref">1</a></sup> and another one <sup id="fnref1:2"><a href="#fn:2" class="footnote-ref">2</a></sup></p>
+<div class="footnotes">
+<hr />
+<ol>
+<li id="fn:1">
+<p>line 1
+line 2</p>
+<blockquote>
+<p>quote</p>
+</blockquote>
+<p>another paragraph&#160;<a href="#fnref1:1" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+<li id="fn:2">
+<p>paragraph</p>
+<p>another paragraph&#160;<a href="#fnref1:2" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+</ol>
+</div>

vendor/erusev/parsedown-extra/test/data/compound_footnote.md

@@ -0,0 +1,14 @@
+footnote [^1] and another one [^2]
+
+[^1]: line 1
+      line 2
+
+    > quote
+
+    another paragraph
+      
+[^2]:
+    paragraph
+    
+    another paragraph
+    

vendor/erusev/parsedown-extra/test/data/definition_list.html

@@ -0,0 +1,17 @@
+<dl>
+<dt>Term 1</dt>
+<dd>one</dd>
+<dd>two
+extra line</dd>
+<dt>Term 2</dt>
+<dd><p>lazy
+line</p></dd>
+<dd><p>multiple</p>
+<p>paragraphs</p></dd>
+<dd><p>nested</p>
+<pre><code>code block</code></pre>
+<blockquote>
+<p>quote
+block</p>
+</blockquote></dd>
+</dl>

vendor/erusev/parsedown-extra/test/data/definition_list.md

@@ -0,0 +1,20 @@
+Term 1
+:   one
+:   two
+    extra line
+
+Term 2
+
+:   lazy
+line
+
+:   multiple
+
+    paragraphs
+
+:   nested
+
+        code block
+
+    > quote
+    > block

vendor/erusev/parsedown-extra/test/data/footnote.html

@@ -0,0 +1,20 @@
+<p>first <sup id="fnref1:1"><a href="#fn:1" class="footnote-ref">1</a></sup> second <sup id="fnref1:2"><a href="#fn:2" class="footnote-ref">2</a></sup>.</p>
+<p>first <sup id="fnref1:a"><a href="#fn:a" class="footnote-ref">3</a></sup> second <sup id="fnref1:b"><a href="#fn:b" class="footnote-ref">4</a></sup>.</p>
+<p>second time <sup id="fnref2:1"><a href="#fn:1" class="footnote-ref">1</a></sup></p>
+<div class="footnotes">
+<hr />
+<ol>
+<li id="fn:1">
+<p>one&#160;<a href="#fnref1:1" rev="footnote" class="footnote-backref">&#8617;</a> <a href="#fnref2:1" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+<li id="fn:2">
+<p>two&#160;<a href="#fnref1:2" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+<li id="fn:a">
+<p>one&#160;<a href="#fnref1:a" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+<li id="fn:b">
+<p>two&#160;<a href="#fnref1:b" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+</ol>
+</div>

vendor/erusev/parsedown-extra/test/data/footnote.md

@@ -0,0 +1,11 @@
+first [^1] second [^2].
+
+[^1]: one
+[^2]: two
+
+first [^a] second [^b].
+
+[^a]: one
+[^b]: two
+
+second time [^1]

vendor/erusev/parsedown-extra/test/data/markdown_inside_markup.html

@@ -0,0 +1,25 @@
+<div class="example">
+<p><em>markdown</em></p>
+<p>This is another paragraph. It contains <em>inline markup</em>.</p>
+<div>
+_no markdown_
+</div>
+</div>
+<hr />
+<div>
+<p><em>markdown</em></p>
+<div>
+<p><em>markdown</em></p>
+</div>
+</div>
+<hr />
+<div>
+_no markdown_
+<div>
+<p><em>markdown</em></p>
+</div>
+</div>
+<hr />
+<div markdown="0">
+_no markdown_
+</div>

vendor/erusev/parsedown-extra/test/data/markdown_inside_markup.md

@@ -0,0 +1,32 @@
+<div class="example" markdown="1">
+_markdown_
+
+This is another paragraph. It contains <em>inline markup</em>.
+<div>
+_no markdown_
+</div>
+</div>
+
+---
+
+<div markdown="1">
+_markdown_
+<div markdown="1">
+_markdown_
+</div>
+</div>
+
+---
+
+<div>
+_no markdown_
+<div markdown="1">
+_markdown_
+</div>
+</div>
+
+---
+
+<div markdown="0">
+_no markdown_
+</div>

vendor/erusev/parsedown-extra/test/data/special_attributes.html

@@ -0,0 +1,6 @@
+<h1 id="header1">Header 1</h1>
+<h2 id="header2">Header 2</h2>
+<h2 class="main">The Site</h2>
+<h2 id="the-site" class="main shine">The Site</h2>
+<p><a href="http://parsedown.org" id="link" class="primary upper-case">link</a></p>
+<p><img src="/md.png" alt="logo" id="logo" class="big" /></p>

vendor/erusev/parsedown-extra/test/data/special_attributes.md

@@ -0,0 +1,12 @@
+Header 1 {#header1}
+========
+
+## Header 2 ## {#header2}
+
+## The Site ## {.main}
+
+## The Site ## {.main .shine #the-site}
+
+[link](http://parsedown.org) {.primary #link .upper-case}
+
+![logo](/md.png) {#logo .big}

vendor/erusev/parsedown/.github/workflows/unit-tests.yaml

@@ -0,0 +1,37 @@
+on:
+    - push
+    - pull_request
+
+jobs:
+    phpunit:
+        runs-on: ubuntu-latest
+
+        strategy:
+            matrix:
+                php:
+                    - '7.1'
+                    - '7.2'
+                    - '7.3'
+                    - '7.4'
+                    - '8.0'
+                    - '8.1'
+                    - '8.2'
+                    - '8.3'
+                    - '8.4'
+
+        steps:
+            - name: Checkout the source code
+              uses: actions/checkout@v4
+
+            - name: Set up PHP
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: '${{ matrix.php }}'
+
+            - name: Install dependencies
+              run: composer install
+
+            - name: Run tests
+              run: |
+                  vendor/bin/phpunit
+                  vendor/bin/phpunit test/CommonMarkTestWeak.php || true

vendor/erusev/parsedown/LICENSE.txt

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013-2018 Emanuil Rusev, erusev.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/erusev/parsedown/README.md

@@ -0,0 +1,98 @@
+# Parsedown
+
+[![Total Downloads](https://poser.pugx.org/erusev/parsedown/d/total.svg)](https://packagist.org/packages/erusev/parsedown)
+[![Version](https://poser.pugx.org/erusev/parsedown/v/stable.svg)](https://packagist.org/packages/erusev/parsedown)
+[![License](https://poser.pugx.org/erusev/parsedown/license.svg)](https://packagist.org/packages/erusev/parsedown)
+
+Better Markdown Parser in PHP — <a href="https://parsedown.org/demo">demo</a>
+
+## Features
+
+- One file
+- No dependencies
+- [Super fast](http://parsedown.org/speed)
+- Extensible
+- [GitHub flavored](https://github.github.com/gfm)
+- [Tested](http://parsedown.org/tests/) in PHP 7.1+
+- [Markdown Extra extension](https://github.com/erusev/parsedown-extra)
+
+## Installation
+
+Install the [composer package]:
+
+```sh
+composer require erusev/parsedown
+```
+
+Or download the [latest release] and include `Parsedown.php`
+
+[composer package]: https://packagist.org/packages/erusev/parsedown "The Parsedown package on packagist.org"
+[latest release]: https://github.com/erusev/parsedown/releases/latest "The latest release of Parsedown"
+
+## Example
+
+```php
+$Parsedown = new Parsedown();
+
+echo $Parsedown->text('Hello _Parsedown_!'); # prints: <p>Hello <em>Parsedown</em>!</p>
+```
+
+You can also parse inline markdown only:
+
+```php
+echo $Parsedown->line('Hello _Parsedown_!'); # prints: Hello <em>Parsedown</em>!
+```
+
+More examples in [the wiki](https://github.com/erusev/parsedown/wiki/) and in [this video tutorial](http://youtu.be/wYZBY8DEikI).
+
+## Security
+
+Parsedown is capable of escaping user-input within the HTML that it generates. Additionally Parsedown will apply sanitisation to additional scripting vectors (such as scripting link destinations) that are introduced by the markdown syntax itself.
+
+To tell Parsedown that it is processing untrusted user-input, use the following:
+
+```php
+$Parsedown->setSafeMode(true);
+```
+
+If instead, you wish to allow HTML within untrusted user-input, but still want output to be free from XSS it is recommended that you make use of a HTML sanitiser that allows HTML tags to be whitelisted, like [HTML Purifier](http://htmlpurifier.org/).
+
+In both cases you should strongly consider employing defence-in-depth measures, like [deploying a Content-Security-Policy](https://scotthelme.co.uk/content-security-policy-an-introduction/) (a browser security feature) so that your page is likely to be safe even if an attacker finds a vulnerability in one of the first lines of defence above.
+
+Safe mode does not necessarily yield safe results when using extensions to Parsedown. Extensions should be evaluated on their own to determine their specific safety against XSS.
+
+## Escaping HTML
+
+> WARNING: This method is not safe from XSS!
+
+If you wish to escape HTML in trusted input, you can use the following:
+
+```php
+$Parsedown->setMarkupEscaped(true);
+```
+
+Beware that this still allows users to insert unsafe scripting vectors, ex: `[xss](javascript:alert%281%29)`.
+
+## Questions
+
+**How does Parsedown work?**
+
+It tries to read Markdown like a human. First, it looks at the lines. It’s interested in how the lines start. This helps it recognise blocks. It knows, for example, that if a line starts with a `-` then perhaps it belongs to a list. Once it recognises the blocks, it continues to the content. As it reads, it watches out for special characters. This helps it recognise inline elements (or inlines).
+
+We call this approach "line based". We believe that Parsedown is the first Markdown parser to use it. Since the release of Parsedown, other developers have used the same approach to develop other Markdown parsers in PHP and in other languages.
+
+**Is it compliant with CommonMark?**
+
+It passes most of the CommonMark tests. Most of the tests that don't pass deal with cases that are quite uncommon. Still, as CommonMark matures, compliance should improve.
+
+**Who uses it?**
+
+[Laravel Framework](https://laravel.com/), [Bolt CMS](http://bolt.cm/), [Grav CMS](http://getgrav.org/), [Herbie CMS](http://www.getherbie.org/), [Kirby CMS](http://getkirby.com/), [October CMS](http://octobercms.com/), [Pico CMS](http://picocms.org), [Statamic CMS](http://www.statamic.com/), [phpDocumentor](http://www.phpdoc.org/), [RaspberryPi.org](http://www.raspberrypi.org/), [Symfony Demo](https://github.com/symfony/demo) and [more](https://packagist.org/packages/erusev/parsedown/dependents).
+
+**How can I help?**
+
+Use it, star it, share it and if you feel generous, [donate](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=528P3NZQMP8N2).
+
+**What else should I know?**
+
+I also make [Nota](https://nota.md/) — a notes app designed for local Markdown files.

vendor/erusev/parsedown/composer.json

@@ -0,0 +1,33 @@
+{
+    "name": "erusev/parsedown",
+    "description": "Parser for Markdown.",
+    "keywords": ["markdown", "parser"],
+    "homepage": "http://parsedown.org",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Emanuil Rusev",
+            "email": "hello@erusev.com",
+            "homepage": "http://erusev.com"
+        }
+    ],
+    "require": {
+        "php": ">=7.1",
+        "ext-mbstring": "*"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^7.5|^8.5|^9.6"
+    },
+    "autoload": {
+        "psr-0": {"Parsedown": ""}
+    },
+    "autoload-dev": {
+        "psr-0": {
+            "TestParsedown": "test/",
+            "ParsedownTest": "test/",
+            "CommonMarkTest": "test/",
+            "CommonMarkTestWeak": "test/"
+        }
+    }
+}