>>>>> Ikumi Keita <ik...@ikumi.que.jp> writes:
> The point is that AUCTeX should extend this follow-up on
> `derived-mode-p' to `provided-mode-derived-p'. I'll explain the detail
> in a few days.
Here we go.
1. In my feature branch and current AUCTeX, I added pseudo-parent mode
facility[1][2] like emacs 30 in order to have compatibility with
directory local variable entry prepared for former mode names like
`latex-mode'.
2. That facility only concerns for `derived-mode-p' and doesn't tweak
`provided-mode-derived-p'. However, the `run-if' property of
`text-colum' entry in `align-rules-list'[3] uses
`provided-mode-derived-p'. This discrepancy calls for a spurious
alignment is in `LaTeX-mode' because it isn't considered as derived
from modes listed in `align-tex-modes'
3. This spurious alignment doen't occur in emacs 30 since it overhauls
`provided-mode-derived-p' in depth.
4. The attached patch improves the pseudo-parent mode facility to cover
`provided-mode-derived-p' as well, and fix this bug.
5. The entry `tex-tabbing-separator' in `align-rules-list'[4] has to be
fixed because its `run-if' property contains conditional with repect
to the major mode without `derived-mode-p' nor
`provided-mode-derived-p'. I'll file a bug report for this.
[1] `TeX-derived-mode-add-parents'
[2] advice for `derived-mode-p' by `TeX--compat-derived-mode-p'
[3]-------------------------------------------------------------------
;; Align space delimited text as columns.
(text-column
(regexp . "\\(^\\|\\S-\\)\\([ \t]+\\)\\(\\S-\\|$\\)")
(group . 2)
(modes . align-text-modes)
(repeat . t)
(run-if . ,(lambda ()
(and (not (eq '- current-prefix-arg))
(not (apply #'provided-mode-derived-p
major-mode align-tex-modes))))))
----------------------------------------------------------------------
[4]-------------------------------------------------------------------
(tex-tabbing-separator
(regexp . ,(lambda (end reverse)
(align-match-tex-pattern "\\\\[=>]" end reverse)))
(group . (1 2))
(modes . align-tex-modes)
(repeat . t)
(run-if . ,(lambda ()
(eq major-mode 'latex-mode))))
----------------------------------------------------------------------
Regards,
Ikumi Keita
#StandWithUkraine #StopWarInUkraine
#Gaza #StopMassiveKilling #CeasefireNOW
diff --git a/tests/tex/utility.el b/tests/tex/utility.el
index ac0a8aab..68c9a2cb 100644
--- a/tests/tex/utility.el
+++ b/tests/tex/utility.el
@@ -1,6 +1,6 @@
;;; utility.el --- tests for AUCTeX utility functions -*- lexical-binding: t; -*-
-;; Copyright (C) 2017, 2021 Free Software Foundation, Inc.
+;; Copyright (C) 2017, 2021, 2024 Free Software Foundation, Inc.
;; This file is part of AUCTeX.
@@ -55,4 +55,16 @@
(TeX-add-to-alist 'TeX-dummy-alist '((a a)))
(should (equal TeX-dummy-alist '((b 2 3) (a 1 4 a)))))
+(ert-deftest TeX-pseudo-parent-mode ()
+ "Check pseudo parent modes are recognized.
+For example, `LaTeX-mode' should be regarded as derived from
+`latex-mode' for compatibility with the former mode names."
+ (require 'plain-tex)
+ (require 'latex)
+ (require 'tex-info)
+ (require 'context)
+ (require 'tex-jp)
+ (dolist (mode-pair TeX-mode-comparison-alist)
+ (should (provided-mode-derived-p (cdr mode-pair) (car mode-pair)))))
+
;;; utility.el ends here
diff --git a/tex-info.el b/tex-info.el
index 63242e0d..fc10f018 100644
--- a/tex-info.el
+++ b/tex-info.el
@@ -1,6 +1,6 @@
;;; tex-info.el --- Support for editing Texinfo source. -*- lexical-binding: t; -*-
-;; Copyright (C) 1993-2023 Free Software Foundation, Inc.
+;; Copyright (C) 1993-2024 Free Software Foundation, Inc.
;; Maintainer: auctex-de...@gnu.org
;; Keywords: tex
@@ -890,6 +890,11 @@ Run after mode hooks and file local variables application."
(TeX-set-mode-name))
+;; Compatibility for former mode name. Directory local variables
+;; prepared for `texinfo-mode' continue to be valid for
+;; `Texinfo-mode'.
+(TeX-derived-mode-add-parents 'Texinfo-mode '(texinfo-mode))
+
(defcustom Texinfo-clean-intermediate-suffixes
'("\\.cps?" "\\.vrs?" "\\.fns?" "\\.tps?" "\\.pgs?" "\\.kys?")
"List of regexps matching suffixes of files to be deleted.
diff --git a/tex.el b/tex.el
index 17cb1aa9..072fb108 100644
--- a/tex.el
+++ b/tex.el
@@ -3886,15 +3886,14 @@ Run after mode hooks and file local variables application."
;; COMPATIBILITY for Emacs<30
(unless (fboundp 'derived-mode-add-parents)
- (advice-add 'derived-mode-p :after-until
+ (advice-add 'provided-mode-derived-p :after-until
;; Don't quote by #'-style to avoid compiler warning.
- 'TeX--compat-derived-mode-p)
- (defun TeX--compat-derived-mode-p (&rest modes)
- "Add pseudo-parents facility to `derived-mode-p' like Emacs 30.
-Modes registered in `derived-mode-extra-parents' property of the
-current major mode name symbol are regarded as parent modes as
-long as `derived-mode-p' is concerned."
- (let ((extra-parents (get major-mode 'derived-mode-extra-parents)))
+ 'TeX--compat-provided-mode-derived-p)
+ (defun TeX--compat-provided-mode-derived-p (mode &rest modes)
+ "Add pseudo-parents facility to `provided-mode-derived-p' like Emacs 30.
+Modes registered in `derived-mode-extra-parents' property of MODE
+symbol are regarded as parent modes by `provided-mode-derived-p'."
+ (let ((extra-parents (get mode 'derived-mode-extra-parents)))
(and extra-parents
(cl-loop for parent in extra-parents
thereis (memq parent modes))))))
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