Charles Campbell wrote:
> >> I tried the following trick:
> >>
> >> syn match texGreek '\\alpha\>' contained conceal cchar=á
> >> nextgroup=texGreek2
> >> syn match texGreek2 '\\alpha\>' contained conceal cchar=á
> >> nextgroup=texGreek
> >>
> >> So $\alpha\alpha$ has the first \alpha as texGreek, and the second one
> >> as texGreek2 . Unfortunately, although the syntax highlighting treated
> >> the two differently, the conceal code still merges the two, using only
> >> the one á instead of what I'd hoped (áá).
> >>
> >
> > Makes sense. We can get the ID of the syntax item, and use a change in
> > that as a signal to display the conceal character.
> > I have implemented that, please try it out and let us know.
> > If this doesn't work as intended, we should roll it back.
> >
> > Soon we can't make incompatible changes, thus please let's figure out
> > how this should work very soon!
> >
> >
> Hello, Bram!
>
> I've attached a modified syntax/tex.vim which makes a start at
> supporting Greek, subscripts, and superscripts. Its not complete:
>
> * I haven't supported a^{b*c} for example; I'll have to try making
> regions for superscripts and for subscripts. Probably I can do
> something about this.
> * Some symbols just aren't available via utf-8; for example, Euler's
> equation: e^{i \pi} = -1 ; there's no superscripted or subscripted
> Greek available. (AFAIK)
> * Subscripts are even more restrictive in utf-8; there's a good set of
> superscripted a-zA-W (missing the q and Q, though), but for scripts,
> only aeiou and 0-9 are available (again, AFAIK).
> * I haven't begun accent support; I think utf-8 does a very good job of
> supporting accented characters, and that's next on my expanding list
> of things to do for syntax/tex.vim
>
> This trick doubles the amount of syntax rules, of course, so IMHO its
> not ideal, but its working! Thank you for the modification.
Having to double all these groups makes the syntax file a lot more
complex. I'm thinking of another way to do this.
But do we really want every match with a "cchar" argument to display
that character? So far it would only show one "cchar" for all
consecutive matches.
I would say that if one wants only one character, a match could be
created that spans the whole.
--
I bought a book on hair loss, but the pages kept falling out.
/// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
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