backtick within code span

**strong** and *em* and **strong** and *em*

.travis.yml

@@ -4,4 +4,5 @@ php:
   - 5.5
   - 5.4
   - 5.3
-  - 5.2
+  - 5.2
+  - hhvm

README.md

@@ -1,8 +1,20 @@
 ## Parsedown
 
-Parsedown is a Markdown parser for PHP. It is fast, consistent and easy to use.
+Better [Markdown](http://en.wikipedia.org/wiki/Markdown) parser for PHP.
 
-[Home](http://parsedown.org)  · [Demo](http://parsedown.org/explorer/) · [Tests](http://parsedown.org/tests/)
+***
+
+[ [demo](http://parsedown.org/demo) ] [ [tests](http://parsedown.org/tests/) ]
+
+***
+
+### Features
+
+* [fast](http://parsedown.org/speed)
+* [consistent](http://parsedown.org/consistency)
+* [GitHub Flavored](https://help.github.com/articles/github-flavored-markdown)
+* [tested](https://travis-ci.org/erusev/parsedown) in PHP 5.2, 5.3, 5.4, 5.5 and [hhvm](http://www.hhvm.com/)
+* friendly to international input
 
 ### Installation
 
@@ -11,9 +23,9 @@ Include `Parsedown.php` or install [the composer package](https://packagist.org/
 ### Example
 
 ```php
-$text = 'Hello **Parsedown**!';
+$text = 'Hello *Parsedown*!';
 
 $result = Parsedown::instance()->parse($text);
 
-echo $result; # prints: <p>Hello <strong>Parsedown</strong>!</p>
+echo $result; # prints: <p>Hello <em>Parsedown</em>!</p>
 ```

tests/data/atx_heading.html

@@ -4,4 +4,5 @@
 <h4>h4</h4>
 <h5>h5</h5>
 <h6>h6</h6>
-<h1>closed h1</h1>
+<h1>closed h1</h1>
+<p>#</p>

tests/data/atx_heading.md

@@ -10,4 +10,6 @@
 
 ###### h6
 
-# closed h1 #
+# closed h1 #
+
+#

tests/data/block-level_html.html

@@ -1,9 +1,5 @@
-<div>content</div>
+<div>_content_</div>
-<hr style="background: #eaa;" />
+<p>sparse:</p>
-<p>nested elements:</p>
 <div>
-parent
+_content_
-<div>
-child
-</div>
 </div>

tests/data/block-level_html.md

@@ -1,12 +1,7 @@
-<div>content</div>
+<div>_content_</div>
 
-<hr style="background: #eaa;" />
+sparse:
-
-nested elements:
 
 <div>
-parent
+_content_
-<div>
-child
-</div>
 </div>

tests/data/compound_emphasis.html

@@ -0,0 +1,2 @@
+<p><em><code>code</code></em> <strong><code>code</code></strong></p>
+<p><em><code>code</code><strong><code>code</code></strong><code>code</code></em></p>

tests/data/compound_emphasis.md

@@ -0,0 +1,4 @@
+_`code`_ __`code`__
+
+*`code`**`code`**`code`*
+

tests/data/em_strong.html

@@ -1,5 +1,8 @@
 <p><strong><em>em strong</em></strong></p>
-<p><strong><em>one</em> at the start</strong></p>
+<p><strong><em>em strong</em> strong</strong></p>
-<p><strong>one at the <em>end</em></strong></p>
+<p><strong>strong <em>em strong</em></strong></p>
-<p><strong>one <em>in the</em> middle</strong></p>
+<p><strong>strong <em>em strong</em> strong</strong></p>
-<p><strong>one with <em>asterisks</em></strong></p>
+<p><strong><em>em strong</em></strong></p>
+<p><strong><em>em strong</em> strong</strong></p>
+<p><strong>strong <em>em strong</em></strong></p>
+<p><strong>strong <em>em strong</em> strong</strong></p>

tests/data/em_strong.md

@@ -1,9 +1,15 @@
 ___em strong___
 
-___one_ at the start__
+___em strong_ strong__
 
-__one at the _end___
+__strong _em strong___
 
-__one _in the_ middle__
+__strong _em strong_ strong__
 
-**one with *asterisks***
+***em strong***
+
+***em strong* strong**
+
+**strong *em strong***
+
+**strong *em strong* strong**

tests/data/email.html

@@ -0,0 +1 @@
+<p>my email is <a href="mailto:me@example.com">me@example.com</a></p>

tests/data/email.md

@@ -0,0 +1 @@
+my email is <me@example.com>

tests/data/emphasis.html

@@ -1,5 +1,8 @@
 <p><em>underscore</em>, <em>asterisk</em>, <em>one two</em>, <em>three four</em>, <em>a</em>, <em>b</em></p>
-<p><em>multiline
+<p><strong>strong</strong> and <em>em</em> and <strong>strong</strong> and <em>em</em></p>
-emphasis</em></p>
+<p><em>line
-<p>_ this _ is not an emphasis, neither is _ this_, _this _, or _this*</p>
+line
-<p>an empty emphasis __ ** is not an emphasis</p>
+line</em></p>
+<p>this_is_not_an_emphasis</p>
+<p>an empty emphasis __ ** is not an emphasis</p>
+<p>*mixed *<em>double and</em> single asterisk** spans</p>

tests/data/emphasis.md

@@ -1,8 +1,13 @@
 _underscore_, *asterisk*, _one two_, *three four*, _a_, *b*
 
-_multiline
+**strong** and *em* and **strong** and *em*
-emphasis_
 
-_ this _ is not an emphasis, neither is _ this_, _this _, or _this*
+_line
+line
+line_
 
-an empty emphasis __ ** is not an emphasis
+this_is_not_an_emphasis
+
+an empty emphasis __ ** is not an emphasis
+
+*mixed **double and* single asterisk** spans

tests/data/fenced_code_block.html

@@ -2,4 +2,5 @@
 
 $message = 'fenced code block';
 echo $message;</code></pre>
-<pre><code>tilde</code></pre>
+<pre><code>tilde</code></pre>
+<pre><code class="language-php">echo 'language identifier';</code></pre>

tests/data/fenced_code_block.md

@@ -7,4 +7,8 @@ echo $message;
 
 ~~~
 tilde
-~~~
+~~~
+
+```php
+echo 'language identifier';
+```

tests/data/html_entity.html

@@ -0,0 +1 @@
+<p>&amp; &copy; &#123;</p>

tests/data/html_entity.md

@@ -0,0 +1 @@
+& © {

tests/data/image_reference.html

@@ -1 +1 @@
-<p><img alt="Markdown Logo" src="/md.png"></p>
+<p><img alt="Markdown Logo" src="/md.png" /></p>

tests/data/image_reference.md

@@ -1,3 +1,3 @@
 ![Markdown Logo][image]
 
-[image]: /md.png
+[image]: /md.png

tests/data/image_title.html

@@ -0,0 +1 @@
+<p><img alt="alt" src="/md.png" title="title" /></p>

tests/data/image_title.md

@@ -0,0 +1 @@
+![alt](/md.png "title")

tests/data/implicit_reference.html

@@ -1,2 +1,3 @@
 <p>an <a href="http://example.com">implicit</a> reference link</p>
-<p>an <a href="http://example.com">implicit</a> reference link with an empty link definition</p>
+<p>an <a href="http://example.com">implicit</a> reference link with an empty link definition</p>
+<p>an <a href="http://example.com" title="Example">explicit</a> reference link with a title</p>

tests/data/implicit_reference.md

@@ -2,4 +2,8 @@ an [implicit] reference link
 
 [implicit]: http://example.com
 
-an [implicit][] reference link with an empty link definition
+an [implicit][] reference link with an empty link definition
+
+an [explicit][example] reference link with a title
+
+[example]: http://example.com "Example"

tests/data/inline_link.html

@@ -1,2 +1,4 @@
-<p><a href="http://example.com">link</a></p>
+<p><a href="http://example.com">link</a> and <a href="/tests/">another link</a></p>
-<p><a href="http://example.com"><img alt="MD Logo" src="http://parsedown.org/md.png"></a></p>
+<p><a href="http://example.com"><code>link</code></a></p>
+<p><a href="http://example.com"><img alt="MD Logo" src="http://parsedown.org/md.png" /></a></p>
+<p><a href="http://example.com"><img alt="MD Logo" src="http://parsedown.org/md.png" /> and text</a></p>

tests/data/inline_link.md

@@ -1,3 +1,7 @@
-[link](http://example.com)
+[link](http://example.com) and [another link](/tests/)
 
-[![MD Logo](http://parsedown.org/md.png)](http://example.com)
+[`link`](http://example.com)
+
+[![MD Logo](http://parsedown.org/md.png)](http://example.com)
+
+[![MD Logo](http://parsedown.org/md.png) and text](http://example.com)

tests/data/inline_title.html

@@ -0,0 +1 @@
+<p><a href="http://example.com" title="Example">single quotes</a> and <a href="http://example.com" title="Example">double quotes</a></p>

tests/data/inline_title.md

@@ -0,0 +1 @@
+[single quotes](http://example.com 'Example') and [double quotes](http://example.com "Example")

tests/data/multiline_list_paragraph.html

@@ -0,0 +1,7 @@
+<ul>
+<li>
+<p>li</p>
+<p>line
+line</p>
+</li>
+</ul>

tests/data/multiline_list_paragraph.md

@@ -0,0 +1,4 @@
+- li
+
+  line
+  line

tests/data/nested_block-level_html.html

@@ -0,0 +1,10 @@
+<div>
+_parent_
+<div>
+_child_
+</div>
+<pre>
+_adopted child_
+</pre>
+</div>
+<p><em>outside</em></p>

tests/data/nested_block-level_html.md

@@ -0,0 +1,11 @@
+<div>
+_parent_
+<div>
+_child_
+</div>
+<pre>
+_adopted child_
+</pre>
+</div>
+
+_outside_

tests/data/paragraph_list.html

@@ -0,0 +1,12 @@
+<p>paragraph</p>
+<ul>
+<li>li</li>
+<li>li</li>
+</ul>
+<p>paragraph</p>
+<ul>
+<li>
+<p>li</p>
+</li>
+<li>li</li>
+</ul>

tests/data/paragraph_list.md

@@ -0,0 +1,9 @@
+paragraph
+- li
+- li
+
+paragraph
+
+   * li
+   
+   * li

tests/data/reference_title.html

@@ -0,0 +1 @@
+<p><a href="http://example.com" title="Title">single quotes</a> and <a href="http://example.com" title="Title">double quotes</a></p>

tests/data/reference_title.md

@@ -0,0 +1 @@
+[single quotes](http://example.com 'Title') and [double quotes](http://example.com "Title")

tests/data/self-closing_block-level_html.html

@@ -0,0 +1,4 @@
+<hr />
+<p>attributes:</p>
+<hr style="background: #9bd;" />
+<p>...</p>

tests/data/self-closing_block-level_html.md

@@ -0,0 +1,7 @@
+<hr />
+
+attributes:
+
+<hr style="background: #9bd;" />
+
+...

tests/data/span-level_html.html

@@ -1,3 +1,4 @@
 <p>an <b>important</b> <a href=''>link</a></p>
 <p>broken<br/>
-line</p>
+line</p>
+<p><b>inline tag</b> at the beginning</p>

tests/data/span-level_html.md

@@ -1,4 +1,6 @@
 an <b>important</b> <a href=''>link</a>
 
 broken<br/>
-line
+line
+
+<b>inline tag</b> at the beginning

tests/data/special_characters.html

@@ -1,7 +1,6 @@
 <p>AT&amp;T has an ampersand in their name</p>
-<p>AT&amp;T is another way to write it</p>
 <p>this &amp; that</p>
 <p>4 &lt; 5 and 6 > 5</p>
-<p><a href="http://example.com/autolink?a=1&amp;b=2">http://example.com/autolink?a=1&amp;b=2</a> </p>
+<p><a href="http://example.com/autolink?a=1&amp;b=2">http://example.com/autolink?a=1&amp;b=2</a></p>
 <p><a href="/script?a=1&amp;b=2">inline link</a></p>
 <p><a href="http://example.com/?a=1&amp;b=2">reference link</a></p>

tests/data/special_characters.md

@@ -1,12 +1,10 @@
 AT&T has an ampersand in their name
 
-AT&T is another way to write it
-
 this & that
 
 4 < 5 and 6 > 5
 
-<http://example.com/autolink?a=1&b=2> 
+<http://example.com/autolink?a=1&b=2>
 
 [inline link](/script?a=1&b=2)
 

tests/data/strikethrough.html

@@ -0,0 +1,3 @@
+<p><del>strikethrough</del></p>
+<p>here's <del>one</del> followed by <del>another one</del></p>
+<p>~~ this ~~ is not one neither is ~this~</p>

tests/data/strikethrough.md

@@ -0,0 +1,5 @@
+~~strikethrough~~
+
+here's ~~one~~ followed by ~~another one~~
+
+~~ this ~~ is not one neither is ~this~

tests/data/strong_em.html

@@ -0,0 +1,6 @@
+<p><em>em <strong>strong em</strong></em></p>
+<p><em><strong>strong em</strong> em</em></p>
+<p><em>em <strong>strong em</strong> em</em></p>
+<p><em>em <strong>strong em</strong></em></p>
+<p><em><strong>strong em</strong> em</em></p>
+<p><em>em <strong>strong em</strong> em</em></p>

tests/data/strong_em.md

@@ -0,0 +1,11 @@
+*em **strong em***
+
+***strong em** em*
+
+*em **strong em** em*
+
+_em __strong em___
+
+___strong em__ em_
+
+_em __strong em__ em_

tests/data/tab-indented_code_block.html

@@ -0,0 +1,6 @@
+<pre><code>&lt;?php
+
+$message = 'Hello World!'; 
+echo $message;
+
+echo "following a blank line";</code></pre>

tests/data/tab-indented_code_block.md

@@ -0,0 +1,6 @@
+	<?php
+	
+	$message = 'Hello World!'; 
+	echo $message;
+
+	echo "following a blank line";

tests/data/text_reference.html

@@ -3,4 +3,5 @@
 <p>[one][404] with no definition</p>
 <p><a href="http://example.com">multiline
 one</a> defined on 2 lines</p>
-<p><a href="http://example.com">one</a> with an upper case label</p>
+<p><a href="http://example.com">one</a> with an upper case label</p>
+<p><a href="http://example.com"><code>link</code></a></p>

tests/data/text_reference.md

@@ -13,4 +13,6 @@ one][website] defined on 2 lines
 
 [one][label] with an upper case label
 
-[LABEL]: http://example.com
+[LABEL]: http://example.com
+
+[`link`][website]

tests/data/url_autolinking.html

@@ -0,0 +1,2 @@
+<p>an autolink <a href="http://example.com">http://example.com</a></p>
+<p>inside of brackets [<a href="http://example.com">http://example.com</a>], inside of braces {<a href="http://example.com">http://example.com</a>},  inside of parentheses (<a href="http://example.com">http://example.com</a>)</p>

tests/data/url_autolinking.md

@@ -0,0 +1,3 @@
+an autolink http://example.com
+
+inside of brackets [http://example.com], inside of braces {http://example.com},  inside of parentheses (http://example.com)