Re: Getting frame title in imenu

[Ikumi Keita]

Hi Mandar,

>>>>> Mandar Mitra <mandar.mitra@gmail.com> writes:
> When preparing a presentation using Beamer, I'd like the frame 
> titles to be listed in imenu, along with section names. I use 
> the \begin{frame}[optionals]{Frame title here} form, rather than 
> a separate \frametitle (and would rather not change that habit 
> if I can help it).

> So I customised TeX-outline-extra to

> '(("^\\\\begin{frame}\\(\\[[a-z,]+\\]\\)?" 3))

> As far as I can tell, LaTeX-outline-name (called from
> LaTeX-imenu-create-index-function to "Guess a name for the
> current header line.") starts from the beginning of the
> match and skips forward to the first "{". It thus ends up
> picking "frame" as the header line which is not useful.

> I suppose I could use imenu-generic-expression with
> imenu-default-create-index-function -- that allows me to
> explicitly say which part of the match I want to pick out
> as the header -- but then I'd have to convert
> latex-outline-regexp to the structure used by
> imenu-generic-expression.

> Is there any other easy workaround that I'm missing? 

> Grateful for any help, thanks!

Considerting bug#32062 [1] as well, it might be nice if AUCTeX offers a
way to customize `LaTeX-outline-name'.

I incorporated the idea of Omar, the reporter of bug#32062, to make up
the attached patch. With this change, you can prepare your own function
to extract titles of \section etc. or \begin{frame} depending on the
context, and use it for `LaTeX-outline-name-function' like this:

(defun my-LaTeX-section-or-frame-title ()
  ...
  SOME FUNCTION TO EXTRACT TITLES OF section OR frame
  ...
)
(setq LaTeX-outline-name-function #'my-LaTeX-section-or-frame-title)

I didn't test my patch. I'm sorry if it doesn't work.

Regards,
Ikumi Keita

[1] https://debbugs.gnu.org/cgi/bugreport.cgi?bug=32062

patch
Description: patch for latex.el