Feature request: attr_list extension

[aleray]

Hi,

I was wondering if the Attribute Lists extension found in python markdown could be implemented in sundown too. Or at list, I'd like to know how conceptually one would implement it...

Here is a link describing its behaviour: https://github.com/waylan/Python-Markdown/blob/master/docs/extensions/attr_list.txt

Thanks,

[c00kiemon5ter]

+1 I would like this too