showdownjs/test/issues/#107.inner-underscore-parse-to-block.html

<p>escaped word_with_underscores</p>

<p>escaped word__with__double underscores</p>

<p>escaped word<em>_with_</em>single italic underscore</p>

<p>escaped word*with*asterixs</p>

<p>escaped word**with**asterixs</p>

<p>escaped word<strong>*with*</strong>bold asterixs</p>