Markdown Discuss - Dec 2006 - Markdown markup question

If I have the following text
---------------------------------------------------
Just a small test

     This is some code

         and some indented code

and this is the end

1.  Just a small test

         This is some code

             and some indented code

     and this is the end
---------------------------------------------------
This results in
---------------------------------------------------
<p>Just a small test</p>

<pre><code>This is some code

     and some indented code
</code></pre>

<p>and this is the end</p>

<ol>
<li><p>Just a small test</p>

<pre><code>This is some code


<pre><code>and some indented code
</code></pre>

</code></pre>

<p>and this is the end </p></li>
</ol>
---------------------------------------------------

Note that there are two code tags for the list, is this to be 
expected? have I missed something? is it a bug? or should I just 
learn to live with it?

                 jem

Le 2006-12-29 ? 11:30, Jan Erik Mostr?m a ?crit :
> Note that there are two code tags for the list, is this to be
> expected? have I missed something? is it a bug? or should I just
> learn to live with it?
It's clearly a bug since it generates invalid HTML.

PHP Markdown has a similar although less problematic bug, where it  
only double any blank line in code blocks inside list items. It's a  
bug caused by `doList` adding blank lines as a way to help  
`processListItems` know if the tailing item needs to be wrapped in a  
paragraph.

Ironically, I just fixed that yesterday after the released PHP  
Markdown 1.0.1e (so the fix isn't published yet). I noticed it while  
reading the HTML version of the PHP Markdown release notes I put  
online yesterday, and I remember having noticed it before too.

The fix involves changing the regular expression in  
`processListItems` so that it doesn't require the additional newlines  
by adding a look-ahead at the right place, so that `doList` can stop  
doubling blank lines.

Obviously, there's something else at work in the Perl version that  
cause the nested code block to appear.


Michel Fortin
michel.fortin at michelf.com
http://www.michelf.com/

Jan Erik Mostr?m <lists at mostrom.pp.se> wrote on 12/29/06 at 
5:30 PM:
>Note that there are two code tags for the list, is this to be 
>expected? have I missed something? is it a bug? or should I 
>just learn to live with it?
Bug, for sure. First time I've seen it, though. Thanks for the report.

--J.G.