Consider

"" asdf --

asdf ---

asdf -----

asdf ------ ""

All of these should render as a header (same for =s). http://daringfireball.net/projects/markdown/syntax#header

Cl-markdown renders them as

"" <p>asdf -- </p><p>asdf </p><hr/><p>asdf </p><hr/><h2>asdf </h2> ""

while the perl script renders them as

"" <h2>asdf</h2>

<h2>asdf</h2>

<h2>asdf</h2>

<h2>asdf</h2> ""

It appears that cl-markdown only recognizes headers if there are 6 or more -/=s.

Later, Daniel