Blank lines in lists

[rlidwka]

Quoting spec here:

A list item can begin with at most one blank line. In the following example, foo is not part of the list item:

-

  foo

So foo shouldn't be part of the list, and I was able to verify that it indeed isn't:

$ echo -e '-\n\n  foo' | ./commonmark.js/bin/commonmark
<ul>
<li></li>
</ul>
<p>foo</p>

However, adding a couple of spaces to each line makes it so commonmark.js doesn't seem to consider those lines blank anymore:

$ echo -e '-  \n  \n  foo' | ./commonmark.js/bin/commonmark 
<ul>
<li>foo</li>
</ul>

Which is probably a bug here, since a line that consists entirely of whitespaces is still considered a blank line according to spec.

cmark parses this correctly:

$ echo -e '-  \n  \n  foo' | ./cmark/build/src/cmark 
<ul>
<li></li>
</ul>
<p>foo</p>