Re: [AUCTeX] Insertion of braces in math mode for certain macros

[Tassilo Horn]

"Nicolas Richard" <address@hidden> writes:

> as a side note on the same subject, I use the following modified
> version of TeX-parse-macro.  The change is so that, when the region is
> active and TeX-insert-macro is called, a pair of braces is inserted
> around the region, even in math mode : it's a slight abuse of the
> brace insertion mechanism (which, I assume, existed to avoid space
> gobbling by TeX in non-math mode), but that abuse already existed in
> non-math mode too.

Also as a side node: AUCTeX does a bit of regex parsing to find out
about macro arguments in the LaTeX style files.  For example, it
successfully finds out that \frac has two mandatory arguments, and thus
`C-c RET frac RET' inserts \frac{}{} and places point in the first pair
of {}.

But the definition of \text isn't really accessible for this regex-based
approach, thus giving AUCTeX that information manually is required.

--8<---------------cut here---------------start------------->8---
\DeclareRobustCommand{\text}{%
  address@hidden
address@hidden
address@hidden
  address@hidden@size{#1}}%
  address@hidden@address@hidden #1}}%
  address@hidden@address@hidden #1}}%
  address@hidden address@hidden@false #1}}%
  address@hidden
  }%
}
--8<---------------cut here---------------end--------------->8---

Maybe it would be a good idea to have some alist

  (("amstext" ("text" t))
   ("foobar"  ("foo" t nil nil) ("bar" t)))

which would add \text with one mandatory arg to the symbol list if
amstext is used, \foo with 3 mandatory args if the foobar package is
used, etc.

But currently, I don't see exactly how to implement that.  Is there
already a check for package "usiness"?  And a function that's run
periodically/when the used packages have been altered?  (I'm pretty much
lost with the auto-parsing stuff to be honest.)

Bye,
Tassilo