[wazari972]

isn't that an implementation issue? your example doesn't work indeed in the StackEdit link, but

1. Item one

1. Item two

   1. Subitem a

   1. Subitem b

does work, so that let me think that you just need to improve the parser to consider "a b c" as a valid ordered list, and maybe "i ii iii" at the same time?

(I replaced a, b and 2 by 1 to force the automatic numbering)

[jstalin]

Yes, that would be nice if it parsed correctly. I need ordered lists that have capital letters, capital roman numerals, lowercase letters, numbers, and lowercase roman numerals.

[Terretta]

In all legal documents we work with, "legal numbering" is like 1.2.1.3. Here's CSS for that:

http://lane.net.nz/blog/dave/creating-legal-list-numbering-o...

For your Digits, Roman Numerals, and Alpha numbering (mixed symbols), here's CSS for that:

http://css.wikidot.com/cssnippet:easy-outline

Use Markdown to make your list's HTML, use CSS to style it.