Re: port x-symbol to GNU emacs 24.

[Stefan Monnier]

> I just started to define a `prettify-symbols-alist--TeX' by checking
> what Quail provides.

Hmm... the name sounds suspect.  It should have "tex" in the prefix, not
in the suffix.

> However, there is a problem in that (la)tex-mode and their AUCTeX
> counterparts don't give \ symbol syntax.  Therefore, an entry like
> ("\\alpha" . ?α) will never match.  And omitting the backslash isn't
> possible because then we'd have many false positives for entries like
> ("in" . ?∈).

prettify-symbols-alist does currently handle non-symbol chars.
Whether it handles this specific case, I'm not completely sure (tho I'm
pretty sure it'll mishandle "\alpha2", in any case).  But we should make
prettify-symbols-alist handle the needs of TeX, so feel free to suggest
extensions to prettify-symbols-alist if that's needed.


        Stefan