bug#60887: 29.0.60; Same keys for vc-dir-mark-by-regexp and dired-mark-files-regexp

[Juri Linkov]

etc/NEWS:

 +++
 *** New command '%' ('vc-dir-mark-by-regexp').
 This command marks files based on a regexp.  If given a prefix
 argument, unmark instead.

This will cause problems when in the next versions users will request
more Dired keys in Vc-Dir.  For marking a regexp, Dired uses two keymaps:

  % m   dired-mark-files-regexp
  * %   dired-mark-files-regexp

This patch uses the same keys for compatibility between Dired and Vc-Dir:

diff --git a/doc/emacs/maintaining.texi b/doc/emacs/maintaining.texi
index 8c77ded55d3..6cb4309c21b 100644
--- a/doc/emacs/maintaining.texi
+++ b/doc/emacs/maintaining.texi
@@ -1331,11 +1331,17 @@ VC Directory Commands
 listed files and directories.
 
 @findex vc-dir-mark-by-regexp
-@item %
+@item % m
 You can use this command to mark files by regexp
 (@code{vc-dir-mark-by-regexp}).  If given a prefix, unmark files
 instead.
 
+@findex vc-dir-mark-registered-files
+@item * r
+You can use this command to mark files that are in one of registered
+state, including edited, added or removed.
+(@code{vc-dir-mark-registered-files}).
+
 @item G
 Add the file under point to the list of files that the VC should
 ignore (@code{vc-dir-ignore}).  For instance, if the VC is Git, it
diff --git a/etc/NEWS b/etc/NEWS
index ac338da71e8..435a84e7f81 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -2077,7 +2077,7 @@ The VC Directory buffer now uses the prefix 'b' for these 
branch-related
 commands.
 
 +++
-*** New command '%' ('vc-dir-mark-by-regexp').
+*** New command '% m' ('vc-dir-mark-by-regexp').
 This command marks files based on a regexp.  If given a prefix
 argument, unmark instead.
 
diff --git a/lisp/vc/vc-dir.el b/lisp/vc/vc-dir.el
index 312556f644a..749539b9518 100644
--- a/lisp/vc/vc-dir.el
+++ b/lisp/vc/vc-dir.el
@@ -325,7 +325,6 @@ vc-dir-mode-map
     (define-key map "U" #'vc-dir-unmark-all-files)
     (define-key map "\C-?" #'vc-dir-unmark-file-up)
     (define-key map "\M-\C-?" #'vc-dir-unmark-all-files)
-    (define-key map "%" #'vc-dir-mark-by-regexp)
     ;; Movement.
     (define-key map "n" #'vc-dir-next-line)
     (define-key map " " #'vc-dir-next-line)
@@ -361,8 +360,13 @@ vc-dir-mode-map
       (define-key branch-map "l" #'vc-print-branch-log)
       (define-key branch-map "s" #'vc-switch-branch))
 
+    (let ((regexp-map (make-sparse-keymap)))
+      (define-key map "%" regexp-map)
+      (define-key regexp-map "m" #'vc-dir-mark-by-regexp))
+
     (let ((mark-map (make-sparse-keymap)))
       (define-key map "*" mark-map)
+      (define-key mark-map "%" #'vc-dir-mark-by-regexp)
       (define-key mark-map "r" #'vc-dir-mark-registered-files))
 
     ;; Hook up the menu.