Re: Provide style file for babel support for Brazilian

[Arash Esbati]

Hi Gustavo,

Gustavo Barros <gusbrs.2016@gmail.com> writes:

> On Thu, 17 Jun 2021 at 19:39, Arash Esbati <arash@gnu.org> wrote:
>>
>> This is not the general approach in AUCTeX.  If you want to have
>> braces
>> after (certain) macros, please use the variables `TeX-insert-braces'
>> or
>> `TeX-insert-braces-alist':
>
> Sorry to pester you again with this.

No worries :-)

> I'm probably missing something, but I can't seem to find a way to make
> this work as expected based on `TeX-insert-braces-alist'.

No, you're not missing anything, this is by design.

> As far as I understood, this variable only takes `t' or `nil' for any
> given macro, the later does not add the braces, and the former adds
> them and places point between the braces.  I don't see a way to
> emulate the effect `nil' has in `TeX-add-symbols' which is to add the
> braces and leave point after the closing brace.  Is this indeed the
> case, or am I really missing something?

Consider this example:

    \documentclass{article}

    \usepackage[brazil]{babel}
    \begin{document}
    \begin{verbatim}
    (setq TeX-insert-braces t)
    (setq TeX-insert-braces-alist 
          '(("orda" . nil)))
    \end{verbatim}

    \ord{} \orda
    \end{document}

If you eval the forms inside the verbatim environment, you'd expect the
results shown above.  You don't get them though because brazilian.el has
these lines:

    (TeX-add-symbols
     '("ord"  0)
     '("ro"   0)
     '("orda" 0)
     '("ra"   0))

`TeX-parse-macro' in return has code for this comment:

    ;; Do not add braces if the argument is 0 or -1.

I admit that I discovered this behaviour also after your message.  I
think we have to adjust our style file accordingly.  0 should only be
used for LaTeX preamble only macros where an empty pair of braces after
a macros looks odd.  You can try to apply this patch and play with it:

diff --git a/style/brazilian.el b/style/brazilian.el
index 5124e660..c1ae8022 100644
--- a/style/brazilian.el
+++ b/style/brazilian.el
@@ -61,10 +61,10 @@
      (setq TeX-quote-language nil))
    (setq LaTeX-babel-hyphen-language "brazilian")
    (TeX-add-symbols
-    '("ord"  0)
-    '("ro"   0)
-    '("orda" 0)
-    '("ra"   0))
+    "ord"
+    "ro"
+    "orda"
+    "ra")
    ;; Fontification
    (when (and (eq TeX-install-font-lock 'font-latex-setup)
               (featurep 'font-latex))

or use the updated file attached.

Best, Arash

brazilian.el
Description: application/emacs-lisp