<span class="hljs-string">@' The wild cat jumped over the $height-tall fence.
   He did so with grace.
'@</span>

This SHOULDNT be a part of the above strings span.

<span class="hljs-string">@' The wild cat jumped over the $height-tall fence.
   He did so with grace.
break-end-of-string'@

This SHOULD be a part of the above strings span.</span>