resolve #209

Ignore html comments as well with markupEscape option.

Parsedown.php

@@ -359,6 +359,11 @@ class Parsedown
 
     protected function identifyComment($Line)
     {
+        if ($this->markupEscaped)
+        {
+            return;
+        }
+
         if (isset($Line['text'][3]) and $Line['text'][3] === '-' and $Line['text'][2] === '-' and $Line['text'][1] === '!')
         {
             $Block = array(
@@ -644,7 +649,7 @@ class Parsedown
                 'element' => $Line['body'],
             );
 
-            if ($matches[2] or $matches[1] === 'hr' or preg_match('/<\/'.$matches[1].'>[ ]*$/', $Line['text']))
+            if ($matches[2] or in_array($matches[1], $this->voidElements) or preg_match('/<\/'.$matches[1].'>[ ]*$/', $Line['text']))
             {
                 $Block['closed'] = true;
             }
@@ -1407,6 +1412,10 @@ class Parsedown
         '_' => '/^_((?:[^_]|__[^_]*__)+?)_(?!_)\b/us',
     );
 
+    protected $voidElements = array(
+        'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source',
+    );
+
     protected $textLevelElements = array(
         'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont',
         'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing',

test/ParsedownTest.php

@@ -109,6 +109,10 @@ paragraph
         color: red;
     }
 </style>
+
+comment
+
+<!-- html comment -->
 MARKDOWN_WITH_MARKUP;
 
         $expectedHtml = <<<EXPECTED_HTML
@@ -125,6 +129,8 @@ MARKDOWN_WITH_MARKUP;
     color: red;
 }</code></pre>
 <p>&lt;/style></p>
+<p>comment</p>
+<p>&lt;!-- html comment --></p>
 EXPECTED_HTML;
         $parsedownWithNoMarkup = new Parsedown();
         $parsedownWithNoMarkup->setMarkupEscaped(true);