<span class="hljs-comment">Index: languages/demo.js</span>
<span class="hljs-comment">===================================================================</span>
<span class="hljs-comment">--- languages/demo.js    (revision 199)</span>
<span class="hljs-comment">+++ languages/demo.js    (revision 200)</span>
<span class="hljs-meta">@@ -1,8 +1,7 @@</span>
<span class="hljs-addition">+ Here we highlight correctly</span>
<span class="hljs-comment">====</span>
<span class="hljs-addition">+ Here too</span>
<span class="hljs-comment">=====</span>
<span class="hljs-addition">+ Here we don't anymore after five '=' next to each other</span>