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Re: Extending env definitions or introducing new ones?

From: Arash Esbati
Subject: Re: Extending env definitions or introducing new ones?
Date: Mon, 07 Nov 2022 11:13:14 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50

Hi Keita,

Ikumi Keita <> writes:

> Thank you for raising this issue. I like the idea of increasing
> flexibility of environment insertion facility.

Thanks for your response.  Glad you share this.

> Both solutions looks feasible.  ...Hm, how about this third one?
> (defun LaTeX--env-foo (environment env-func &rest args)
>   (funcall env-func environment)
>   ;; Instead of the above line, maybe...
>   ;; (if (symbolp env-func)
>   ;;     (funcall env-func environment)
>   ;;   ;; Allow (functionname arg1 arg2 ...) for env-func value:
>   ;;   (apply (pop env-func) environment env-func))
>   (when args
>     (save-excursion
>       (LaTeX-find-matching-begin)
>       (end-of-line)
>       (let ((TeX-exit-mark (or TeX-exit-mark
>                                (make-marker))))
>         (TeX-parse-arguments args)))))
> I expect this usage:
> (LaTeX-add-environments
>   '("bar" LaTeX--env-foo LaTeX-env-label "XXX" ["YYY"])
>     ...)

Hmm, I'm not sure about your suggestion with `LaTeX--env-foo'.  The main
reason is that I'm looking for a simple solution which I can add to
`LaTeX-completion-parse-args' here[1].  The code currently does:

  (when (and (eq mac-or-env 'env)
             (eq (car arg-list) #'LaTeX-env-args))
    (pop arg-list))

I'd prefer a solution with a single function name where I can do:

   (when (and (eq mac-or-env 'env)
              (memq (car arg-list) '(LaTeX-env-args
     (pop arg-list))

where I gobble one element from the list and then proceed.  Does this
make sense?

Best, Arash


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