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bug#24412: 11.89; Wrong DocTeX-mode
From: |
David Kastrup |
Subject: |
bug#24412: 11.89; Wrong DocTeX-mode |
Date: |
Sun, 11 Sep 2016 22:26:16 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
Piet van Oostrum <address@hidden> writes:
> In AucTeX, latex.el (line 5871) contains:
>
> (add-to-list 'auto-mode-alist '("\\.dtx\\'" . doctex-mode))
>
> However, AUCTeX's doctex mode is called docTeX-mode. So the line above causes
> the standard Emacs doctex-mode to be invoked, rather than AUCTeX's
> docTeX-mode. This is undesirable.
>
> The line should be:
>
> (add-to-list 'auto-mode-alist '("\\.dtx\\'" . docTeX-mode))
Why? It doesn't change the other modes either. The point is that they
are mapped to the AUCTeX modes on-demand, see
TeX-modes is a variable defined in ‘tex-site.el’.
Its value is
(tex-mode plain-tex-mode texinfo-mode latex-mode doctex-mode)
Documentation:
List of modes provided by AUCTeX.
This variable can’t be set normally; use customize for that, or
set it with ‘TeX-modes-set’.
You can customize this variable.
> There is another thing. The documentation of docTeX-mode says:
>
> "Major mode in AUCTeX for editing .dtx files derived from `LaTeX-mode'.
> Runs `LaTeX-mode', sets a few variables and
> runs the hooks in `docTeX-mode-hook'."
>
> However, docTeX-mode-hook is never run.
That's a possible bug. Let me see.
docTeX-mode is defined with
(define-derived-mode docTeX-mode TeX-latex-mode "docTeX"
...
in latex.el. The documentation of define-derived-mode states:
The new mode runs the hook constructed by the function
‘derived-mode-hook-name’.
which is defined as
(defsubst derived-mode-hook-name (mode)
"Construct a mode-hook name based on a MODE name."
(intern (concat (symbol-name mode) "-hook")))
Which very much looks like it should do the job. Do you have actual
evidence that it doesn't?
--
David Kastrup