Support for <(sub|sup)> (Was: [this] as a synonym for [this][])

[Jelks Cabaniss]

Joseph Lorenzo Hall wrote:
> We might have the LaTeX-esque problem where if you want more than one
> character in a `<sup>` you'd have to write:
> 
>     C^1^2
> 
> instead of:
> 
>     C^12
> 
> or:
> 
>     C^{12}

Unless I misunderstood David (or maybe I'm misunderstanding you), for
`<sup>`, use ^ the same way you'd use * for emphasis -- as enclossures.  In
other words ...

	a superscript: ^with *lots* of characters^


/Jelks