[Emacs-diffs] Changes to emacs/lisp/emulation/pc-select.el,v

[Stefan Monnier]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Stefan Monnier <monnier>        07/11/16 18:07:16

Index: emulation/pc-select.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/emulation/pc-select.el,v
retrieving revision 1.35
retrieving revision 1.36
diff -u -b -r1.35 -r1.36
--- emulation/pc-select.el      16 Nov 2007 17:58:29 -0000      1.35
+++ emulation/pc-select.el      16 Nov 2007 18:07:14 -0000      1.36
@@ -254,10 +254,6 @@
 `function-key-map' before PC Selection mode had changed that
 association.")
 
-(defvar pc-select-shifted-mark nil
-  "Holds whether we ourselves did activate the mark.  Only then
-  should we deactivate if later on.")
-
 ;;;;
 ;; misc
 ;;;;
@@ -285,18 +281,17 @@
 ;;;;
 ;; non-interactive
 ;;;;
-(defun ensure-mark()
+(defun pc-select-ensure-mark ()
   ;; make sure mark is active
   ;; test if it is active, if it isn't, set it and activate it
   (or mark-active (set-mark-command nil))
-  (setq pc-select-shifted-mark t))
+  ;; Remember who activated the mark.
+  (setq mark-active 'pc-select))
 
-(defun maybe-deactivate-mark()
+(defun pc-select-maybe-deactivate-mark ()
   ;; maybe switch off mark (only if *we* switched it on)
-  (if pc-select-shifted-mark
-      (progn
-        (setq mark-active nil)
-        (setq pc-select-shifted-mark nil))))
+  (when (eq mark-active 'pc-select)
+    (deactivate-mark)))
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;; forward and mark
@@ -306,7 +301,7 @@
   "Ensure mark is active; move point right ARG characters (left if ARG 
negative).
 On reaching end of buffer, stop and signal error."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (forward-char arg))
 
 (defun forward-word-mark (&optional arg)
@@ -315,13 +310,13 @@
 If an edge of the buffer is reached, point is left there
 and nil is returned."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (forward-word arg))
 
 (defun forward-line-mark (&optional arg)
   "Ensure mark is active; move cursor vertically down ARG lines."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (forward-line arg)
   (setq this-command 'forward-line)
 )
@@ -331,7 +326,7 @@
 With argument, do it that many times.  Negative arg -N means
 move backward across N balanced expressions."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (forward-sexp arg))
 
 (defun forward-paragraph-mark (&optional arg)
@@ -343,7 +338,7 @@
 A paragraph end is the beginning of a line which is not part of the paragraph
 to which the end of the previous line belongs, or the end of the buffer."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (forward-paragraph arg))
 
 (defun next-line-mark (&optional arg)
@@ -362,7 +357,7 @@
 Then it does not try to move vertically.  This goal column is stored
 in `goal-column', which is nil when there is none."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (with-no-warnings (next-line arg))
   (setq this-command 'next-line))
 
@@ -371,14 +366,14 @@
 With argument ARG not nil or 1, move forward ARG - 1 lines first.
 If scan reaches end of buffer, stop there without error."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (end-of-line arg)
   (setq this-command 'end-of-line))
 
 (defun backward-line-mark (&optional arg)
   "Ensure mark is active; move cursor vertically up ARG lines."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (if (null arg)
       (setq arg 1))
   (forward-line (- arg))
@@ -391,7 +386,7 @@
 Negative ARG means scroll upward.
 When calling from a program, supply a number as argument or nil."
   (interactive "P")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (cond (pc-select-override-scroll-error
         (condition-case nil (scroll-down arg)
           (beginning-of-buffer (goto-char (point-min)))))
@@ -407,7 +402,7 @@
 Don't use this command in Lisp programs!
 \(goto-char \(point-max)) is faster and avoids clobbering the mark."
   (interactive "P")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (let ((size (- (point-max) (point-min))))
     (goto-char (if arg
                   (- (point-max)
@@ -439,7 +434,7 @@
   "Deactivate mark; move point right ARG characters \(left if ARG negative).
 On reaching end of buffer, stop and signal error."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (forward-char arg))
 
 (defun forward-word-nomark (&optional arg)
@@ -448,13 +443,13 @@
 If an edge of the buffer is reached, point is left there
 and nil is returned."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (forward-word arg))
 
 (defun forward-line-nomark (&optional arg)
   "Deactivate mark; move cursor vertically down ARG lines."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (forward-line arg)
   (setq this-command 'forward-line)
 )
@@ -464,7 +459,7 @@
 With argument, do it that many times.  Negative arg -N means
 move backward across N balanced expressions."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (forward-sexp arg))
 
 (defun forward-paragraph-nomark (&optional arg)
@@ -476,7 +471,7 @@
 A paragraph end is the beginning of a line which is not part of the paragraph
 to which the end of the previous line belongs, or the end of the buffer."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (forward-paragraph arg))
 
 (defun next-line-nomark (&optional arg)
@@ -495,7 +490,7 @@
 Then it does not try to move vertically.  This goal column is stored
 in `goal-column', which is nil when there is none."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (with-no-warnings (next-line arg))
   (setq this-command 'next-line))
 
@@ -504,14 +499,14 @@
 With argument ARG not nil or 1, move forward ARG - 1 lines first.
 If scan reaches end of buffer, stop there without error."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (end-of-line arg)
   (setq this-command 'end-of-line))
 
 (defun backward-line-nomark (&optional arg)
   "Deactivate mark; move cursor vertically up ARG lines."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (if (null arg)
       (setq arg 1))
   (forward-line (- arg))
@@ -524,7 +519,7 @@
 Negative ARG means scroll upward.
 When calling from a program, supply a number as argument or nil."
   (interactive "P")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (cond (pc-select-override-scroll-error
         (condition-case nil (scroll-down arg)
           (beginning-of-buffer (goto-char (point-min)))))
@@ -540,7 +535,7 @@
 Don't use this command in Lisp programs!
 \(goto-char (point-max)) is faster and avoids clobbering the mark."
   (interactive "P")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (let ((size (- (point-max) (point-min))))
     (goto-char (if arg
                   (- (point-max)
@@ -573,14 +568,14 @@
 "Ensure mark is active; move point left ARG characters (right if ARG negative).
 On attempt to pass beginning or end of buffer, stop and signal error."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (backward-char arg))
 
 (defun backward-word-mark (&optional arg)
   "Ensure mark is active; move backward until encountering the end of a word.
 With argument, do this that many times."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (backward-word arg))
 
 (defun backward-sexp-mark (&optional arg)
@@ -588,7 +583,7 @@
 With argument, do it that many times.  Negative arg -N means
 move forward across N balanced expressions."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (backward-sexp arg))
 
 (defun backward-paragraph-mark (&optional arg)
@@ -603,7 +598,7 @@
 
 See `forward-paragraph' for more information."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (backward-paragraph arg))
 
 (defun previous-line-mark (&optional arg)
@@ -620,7 +615,7 @@
 `forward-line' with a negative argument instead.  It is usually easier
 to use and more reliable (no dependence on goal column, etc.)."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (with-no-warnings (previous-line arg))
   (setq this-command 'previous-line))
 
@@ -629,7 +624,7 @@
 With argument ARG not nil or 1, move forward ARG - 1 lines first.
 If scan reaches end of buffer, stop there without error."
   (interactive "p")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (beginning-of-line arg))
 
 
@@ -639,7 +634,7 @@
 Negative ARG means scroll downward.
 When calling from a program, supply a number as argument or nil."
   (interactive "P")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (cond (pc-select-override-scroll-error
         (condition-case nil (scroll-up arg)
           (end-of-buffer (goto-char (point-max)))))
@@ -655,7 +650,7 @@
 Don't use this command in Lisp programs!
 \(goto-char (p\oint-min)) is faster and avoids clobbering the mark."
   (interactive "P")
-  (ensure-mark)
+  (pc-select-ensure-mark)
   (let ((size (- (point-max) (point-min))))
     (goto-char (if arg
                   (+ (point-min)
@@ -675,14 +670,14 @@
   "Deactivate mark; move point left ARG characters (right if ARG negative).
 On attempt to pass beginning or end of buffer, stop and signal error."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (backward-char arg))
 
 (defun backward-word-nomark (&optional arg)
   "Deactivate mark; move backward until encountering the end of a word.
 With argument, do this that many times."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (backward-word arg))
 
 (defun backward-sexp-nomark (&optional arg)
@@ -690,7 +685,7 @@
 With argument, do it that many times.  Negative arg -N means
 move forward across N balanced expressions."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (backward-sexp arg))
 
 (defun backward-paragraph-nomark (&optional arg)
@@ -705,7 +700,7 @@
 
 See `forward-paragraph' for more information."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (backward-paragraph arg))
 
 (defun previous-line-nomark (&optional arg)
@@ -718,7 +713,7 @@
 a semipermanent goal column to which this command always moves.
 Then it does not try to move vertically."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (with-no-warnings (previous-line arg))
   (setq this-command 'previous-line))
 
@@ -727,7 +722,7 @@
 With argument ARG not nil or 1, move forward ARG - 1 lines first.
 If scan reaches end of buffer, stop there without error."
   (interactive "p")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (beginning-of-line arg))
 
 (defun scroll-up-nomark (&optional arg)
@@ -736,7 +731,7 @@
 Negative ARG means scroll downward.
 When calling from a program, supply a number as argument or nil."
   (interactive "P")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (cond (pc-select-override-scroll-error
         (condition-case nil (scroll-up arg)
           (end-of-buffer (goto-char (point-max)))))
@@ -752,7 +747,7 @@
 Don't use this command in Lisp programs!
 \(goto-char (point-min)) is faster and avoids clobbering the mark."
   (interactive "P")
-  (maybe-deactivate-mark)
+  (pc-select-maybe-deactivate-mark)
   (let ((size (- (point-max) (point-min))))
     (goto-char (if arg
                   (+ (point-min)
@@ -980,21 +975,5 @@
       (setq pc-select-key-bindings-alist nil
            pc-select-saved-settings-alist nil))))
 
-
-;;;###autoload
-(defcustom pc-selection-mode nil
-  "Toggle PC Selection mode.
-Change mark behavior to emulate Motif, MAC or MS-Windows cut and paste style,
-and cursor movement commands.
-This mode enables Delete Selection mode and Transient Mark mode.
-Setting this variable directly does not take effect;
-you must modify it using \\[customize] or \\[pc-selection-mode]."
-  :set (lambda (symbol value)
-        (pc-selection-mode (if value 1 -1)))
-  :initialize 'custom-initialize-default
-  :type 'boolean
-  :group 'pc-select
-  :require 'pc-select)
-
 ;; arch-tag: 10697b70-ae07-4f3e-ad23-7814a3f418c2
 ;;; pc-select.el ends here