GNU bug report logs - #7940
23.2; Home and End keys don't work as expected with both pc-selection-mode and visual-line-mode enabled

Previous Next

Package: emacs;

Reported by: PJ Weisberg <pj <at> irregularexpressions.net>

Date: Sun, 30 Jan 2011 12:05:02 UTC

Severity: normal

Found in version 23.2

Done: Stefan Monnier <monnier <at> IRO.UMontreal.CA>

Bug is archived. No further changes may be made.

Full log


View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: PJ Weisberg <pj <at> irregularexpressions.net>
Subject: bug#7940: closed (Re: bug#7940: 23.2; Home and End keys don't
 work as expected with both pc-selection-mode and visual-line-mode enabled)
Date: Tue, 08 Feb 2011 20:38:02 +0000
[Message part 1 (text/plain, inline)]
Your bug report

#7940: 23.2; Home and End keys don't work as expected with both pc-selection-mode and visual-line-mode enabled

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 7940 <at> debbugs.gnu.org.

-- 
7940: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7940
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
[Message part 2 (message/rfc822, inline)]
From: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
To: PJ Weisberg <pj <at> irregularexpressions.net>
Cc: 7940-done <at> debbugs.gnu.org
Subject: Re: bug#7940: 23.2;
	Home and End keys don't work as expected with both pc-selection-mode
	and visual-line-mode enabled
Date: Tue, 08 Feb 2011 15:46:08 -0500
> 1) Open or create a file with logical lines longer than the width of the
> window.
> 2) Enable visual-line-mode and pc-selection-mode (order doesn't matter).
> 3) Press the <home> and/or <end> keys with point on one of these long
> lines.

> Expected: Point moves to the beginning/end of the current visual line.
> Observed: Point moves to the beginning/end of the current logical line.

Thanks for your report.  I've installed a different patch (see below)
which removes most of pc-select's code so it relies on shift-select-mode
instead, which ends up fixing your bug.


        Stefan


=== renamed file 'lisp/emulation/pc-select.el' => 'lisp/obsolete/pc-select.el'
--- lisp/emulation/pc-select.el	2011-01-25 04:08:28 +0000
+++ lisp/obsolete/pc-select.el	2011-02-08 19:26:07 +0000
@@ -7,6 +7,7 @@
 ;; Author: Michael Staats <michael <at> thp.Uni-Duisburg.DE>
 ;; Keywords: convenience emulations
 ;; Created: 26 Sep 1995
+;; Obsolete-since: 24.1
 
 ;; This file is part of GNU Emacs.
 
@@ -83,6 +84,9 @@
   :prefix "pc-select"
   :group 'emulations)
 
+(define-obsolete-variable-alias 'pc-select-override-scroll-error
+                                'scroll-error-top-bottom
+                                "24.1")
 (defcustom pc-select-override-scroll-error t
   "Non-nil means don't generate error on scrolling past edge of buffer.
 This variable applies in PC Selection mode only.
@@ -92,9 +96,6 @@
 errors are suppressed."
   :type 'boolean
   :group 'pc-select)
-(define-obsolete-variable-alias 'pc-select-override-scroll-error
-                                'scroll-error-top-bottom
-                                "24.1")
 
 (defcustom pc-select-selection-keys-only nil
   "Non-nil means only bind the basic selection keys when started.
@@ -132,73 +133,14 @@
 (defvar pc-select-default-key-bindings nil
   "These key bindings always get set by PC Selection mode.")
 
-(unless pc-select-default-key-bindings
-  (let ((lst
-	 ;; This is to avoid confusion with the delete-selection-mode.
-         ;; On simple displays you can't see that a region is active and
-	 ;; will be deleted on the next keypress IMHO especially for
-	 ;; copy-region-as-kill this is confusing.
-	 ;; The same goes for exchange-point-and-mark
-	 '(("\M-w" . copy-region-as-kill-nomark)
-	   ("\C-x\C-x" . exchange-point-and-mark-nomark)
-	   ([S-right]   . forward-char-mark)
-	   ([right]     . forward-char-nomark)
-	   ([C-S-right] . forward-word-mark)
-	   ([C-right]   . forward-word-nomark)
-	   ([S-left]    . backward-char-mark)
-	   ([left]      . backward-char-nomark)
-	   ([C-S-left]  . backward-word-mark)
-	   ([C-left]    . backward-word-nomark)
-	   ([S-down]    . next-line-mark)
-	   ([down]      . next-line-nomark)
-
-	   ([S-end]     . end-of-line-mark)
-	   ([end]       . end-of-line-nomark)
-	   ([S-C-end]   . end-of-buffer-mark)
-	   ([C-end]     . end-of-buffer-nomark)
-	   ([S-M-end]   . end-of-buffer-mark)
-	   ([M-end]     . end-of-buffer-nomark)
-
-	   ([S-next]    . scroll-up-mark)
-	   ([next]      . scroll-up-nomark)
-
-	   ([S-up]      . previous-line-mark)
-	   ([up]        . previous-line-nomark)
-
-	   ([S-home]    . beginning-of-line-mark)
-	   ([home]      . beginning-of-line-nomark)
-	   ([S-C-home]  . beginning-of-buffer-mark)
-	   ([C-home]    . beginning-of-buffer-nomark)
-	   ([S-M-home]  . beginning-of-buffer-mark)
-	   ([M-home]    . beginning-of-buffer-nomark)
-
-	   ([M-S-down]  . forward-line-mark)
-	   ([M-down]    . forward-line-nomark)
-	   ([M-S-up]    . backward-line-mark)
-	   ([M-up]      . backward-line-nomark)
-
-	   ([S-prior]   . scroll-down-mark)
-	   ([prior]     . scroll-down-nomark)
-
-	   ;; Next four lines are from Pete Forman.
-	   ([C-down]    . forward-paragraph-nomark)  ; KNextPara     cDn
-	   ([C-up]      . backward-paragraph-nomark) ; KPrevPara     cUp
-	   ([S-C-down]  . forward-paragraph-mark)
-	   ([S-C-up]    . backward-paragraph-mark))))
-
-    (setq pc-select-default-key-bindings lst)))
-
-(defvar pc-select-extra-key-bindings nil
-  "Key bindings to set only if `pc-select-selection-keys-only' is nil.")
-
-;; The following keybindings are for standard ISO keyboards
-;; as they are used with IBM compatible PCs, IBM RS/6000,
-;; MACs, many X-Stations and probably more
-(unless pc-select-extra-key-bindings
-  (let ((lst
-	 '(([S-insert]  . yank)
-	   ([C-insert]  . copy-region-as-kill)
-	   ([S-delete]  . kill-region)
+(defvar pc-select-extra-key-bindings
+  ;; The following keybindings are for standard ISO keyboards
+  ;; as they are used with IBM compatible PCs, IBM RS/6000,
+  ;; MACs, many X-Stations and probably more.
+  '(;; Commented out since it's been standard at least since Emacs-21.
+    ;;([S-insert]  . yank)
+    ;;([C-insert]  . copy-region-as-kill)
+    ;;([S-delete]  . kill-region)
 
 	   ;; The following bindings are useful on Sun Type 3 keyboards
 	   ;; They implement the Get-Delete-Put (copy-cut-paste)
@@ -218,19 +160,14 @@
 	   ;; I only used the one that is not covered above.
 	   ([C-M-delete]  . kill-sexp)
 	   ;; Next line proposed by Eli Barzilay
-	   ([C-escape]    . electric-buffer-list))))
-
-    (setq pc-select-extra-key-bindings lst)))
+    ([C-escape]    . electric-buffer-list))
+  "Key bindings to set only if `pc-select-selection-keys-only' is nil.")
 
 (defvar pc-select-meta-moves-sexps-key-bindings
-  '((([M-S-right] . forward-sexp-mark)
-     ([M-right]   . forward-sexp-nomark)
-     ([M-S-left]  . backward-sexp-mark)
-     ([M-left]    . backward-sexp-nomark))
-    (([M-S-right] . forward-word-mark)
-     ([M-right]   . forward-word-nomark)
-     ([M-S-left]  . backward-word-mark)
-     ([M-left]    . backward-word-nomark)))
+  '((([M-right]   . forward-sexp)
+     ([M-left]    . backward-sexp))
+    (([M-right]   . forward-word)
+     ([M-left]    . backward-word)))
   "The list of key bindings controlled by `pc-select-meta-moves-sexp'.
 The bindings in the car of this list get installed if
 `pc-select-meta-moves-sexp' is t, the bindings in the cadr of this
@@ -259,514 +196,6 @@
 
 (provide 'pc-select)
 
-(defun copy-region-as-kill-nomark (beg end)
-  "Save the region as if killed, but don't kill it; deactivate mark.
-If `interprogram-cut-function' is non-nil, also save the text for a window
-system cut and paste.
-
-Deactivating mark is to avoid confusion with `delete-selection-mode'
-and `transient-mark-mode'."
- (interactive "r")
- (copy-region-as-kill beg end)
- (setq mark-active nil)
- (message "Region saved"))
-
-(defun exchange-point-and-mark-nomark  ()
-  "Like `exchange-point-and-mark' but without activating the mark."
-  (interactive)
-  (exchange-point-and-mark)
-  (setq mark-active nil))
-
-;;;;
-;; non-interactive
-;;;;
-(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))
-  ;; Remember who activated the mark.
-  (setq mark-active 'pc-select))
-
-(defun pc-select-maybe-deactivate-mark ()
-  ;; maybe switch off mark (only if *we* switched it on)
-  (when (eq mark-active 'pc-select)
-    (deactivate-mark)))
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;;;; forward and mark
-;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defun forward-char-mark (&optional arg)
-  "Ensure mark is active; move point right ARG characters (left if ARG negative).
-On reaching end of buffer, stop and signal error."
-  (interactive "p")
-  (pc-select-ensure-mark)
-  (forward-char arg))
-
-(defun forward-word-mark (&optional arg)
-  "Ensure mark is active; move point right ARG words (backward if ARG is negative).
-Normally returns t.
-If an edge of the buffer is reached, point is left there
-and nil is returned."
-  (interactive "p")
-  (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")
-  (pc-select-ensure-mark)
-  (forward-line arg)
-  (setq this-command 'forward-line)
-)
-
-(defun forward-sexp-mark (&optional arg)
-  "Ensure mark is active; move forward across one balanced expression (sexp).
-With argument, do it that many times.  Negative arg -N means
-move backward across N balanced expressions."
-  (interactive "p")
-  (pc-select-ensure-mark)
-  (forward-sexp arg))
-
-(defun forward-paragraph-mark (&optional arg)
-  "Ensure mark is active; move forward to end of paragraph.
-With arg N, do it N times; negative arg -N means move backward N paragraphs.
-
-A line which `paragraph-start' matches either separates paragraphs
-\(if `paragraph-separate' matches it also) or is the first line of a paragraph.
-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")
-  (pc-select-ensure-mark)
-  (forward-paragraph arg))
-
-(defun next-line-mark (&optional arg)
-  "Ensure mark is active; move cursor vertically down ARG lines.
-If there is no character in the target line exactly under the current column,
-the cursor is positioned after the character in that line which spans this
-column, or at the end of the line if it is not long enough.
-If there is no line in the buffer after this one, behavior depends on the
-value of `next-line-add-newlines'.  If non-nil, it inserts a newline character
-to create a line, and moves the cursor to that line.  Otherwise it moves the
-cursor to the end of the buffer \(if already at the end of the buffer, an error
-is signaled).
-
-The command \\[set-goal-column] can be used to create
-a semipermanent goal column to which this command always moves.
-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")
-  (pc-select-ensure-mark)
-  (with-no-warnings (next-line arg))
-  (setq this-command 'next-line))
-
-(defun end-of-line-mark (&optional arg)
-  "Ensure mark is active; move point to end of current line.
-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")
-  (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")
-  (pc-select-ensure-mark)
-  (if (null arg)
-      (setq arg 1))
-  (forward-line (- arg))
-  (setq this-command 'forward-line)
-)
-
-(defun scroll-down-mark (&optional arg)
-  "Ensure mark is active; scroll down ARG lines; or near full screen if no ARG.
-A near full screen is `next-screen-context-lines' less than a full screen.
-Negative ARG means scroll upward.
-When calling from a program, supply a number as argument or nil.
-Attempting to scroll past the edge of buffer does not raise an
-error, unless `pc-select-override-scroll-error' is nil."
-  (interactive "P")
-  (pc-select-ensure-mark)
-  (cond (pc-select-override-scroll-error
-	 (condition-case nil (scroll-down arg)
-	   (beginning-of-buffer (goto-char (point-min)))))
-	(t (scroll-down arg))))
-
-(defun end-of-buffer-mark (&optional arg)
-  "Ensure mark is active; move point to the end of the buffer.
-With arg N, put point N/10 of the way from the end.
-
-If the buffer is narrowed, this command uses the beginning and size
-of the accessible part of the buffer.
-
-Don't use this command in Lisp programs!
-\(goto-char \(point-max)) is faster and avoids clobbering the mark."
-  (interactive "P")
-  (pc-select-ensure-mark)
-  (let ((size (- (point-max) (point-min))))
-    (goto-char (if arg
-		   (- (point-max)
-		      (if (> size 10000)
-			  ;; Avoid overflow for large buffer sizes!
-			  (* (prefix-numeric-value arg)
-			     (/ size 10))
-			(/ (* size (prefix-numeric-value arg)) 10)))
-		 (point-max))))
-  ;; If we went to a place in the middle of the buffer,
-  ;; adjust it to the beginning of a line.
-  (if arg (forward-line 1)
-    ;; If the end of the buffer is not already on the screen,
-    ;; then scroll specially to put it near, but not at, the bottom.
-    (if (let ((old-point (point)))
-	  (save-excursion
-		    (goto-char (window-start))
-		    (vertical-motion (window-height))
-		    (< (point) old-point)))
-	(progn
-	  (overlay-recenter (point))
-	  (recenter -3)))))
-
-;;;;;;;;;
-;;;;; no mark
-;;;;;;;;;
-
-(defun forward-char-nomark (&optional arg)
-  "Deactivate mark; move point right ARG characters \(left if ARG negative).
-On reaching end of buffer, stop and signal error."
-  (interactive "p")
-  (pc-select-maybe-deactivate-mark)
-  (forward-char arg))
-
-(defun forward-word-nomark (&optional arg)
-  "Deactivate mark; move point right ARG words \(backward if ARG is negative).
-Normally returns t.
-If an edge of the buffer is reached, point is left there
-and nil is returned."
-  (interactive "p")
-  (pc-select-maybe-deactivate-mark)
-  (forward-word arg))
-
-(defun forward-line-nomark (&optional arg)
-  "Deactivate mark; move cursor vertically down ARG lines."
-  (interactive "p")
-  (pc-select-maybe-deactivate-mark)
-  (forward-line arg)
-  (setq this-command 'forward-line)
-)
-
-(defun forward-sexp-nomark (&optional arg)
-  "Deactivate mark; move forward across one balanced expression (sexp).
-With argument, do it that many times.  Negative arg -N means
-move backward across N balanced expressions."
-  (interactive "p")
-  (pc-select-maybe-deactivate-mark)
-  (forward-sexp arg))
-
-(defun forward-paragraph-nomark (&optional arg)
-  "Deactivate mark; move forward to end of paragraph.
-With arg N, do it N times; negative arg -N means move backward N paragraphs.
-
-A line which `paragraph-start' matches either separates paragraphs
-\(if `paragraph-separate' matches it also) or is the first line of a paragraph.
-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")
-  (pc-select-maybe-deactivate-mark)
-  (forward-paragraph arg))
-
-(defun next-line-nomark (&optional arg)
-  "Deactivate mark; move cursor vertically down ARG lines.
-If there is no character in the target line exactly under the current column,
-the cursor is positioned after the character in that line which spans this
-column, or at the end of the line if it is not long enough.
-If there is no line in the buffer after this one, behavior depends on the
-value of `next-line-add-newlines'.  If non-nil, it inserts a newline character
-to create a line, and moves the cursor to that line.  Otherwise it moves the
-cursor to the end of the buffer (if already at the end of the buffer, an error
-is signaled).
-
-The command \\[set-goal-column] can be used to create
-a semipermanent goal column to which this command always moves.
-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")
-  (pc-select-maybe-deactivate-mark)
-  (with-no-warnings (next-line arg))
-  (setq this-command 'next-line))
-
-(defun end-of-line-nomark (&optional arg)
-  "Deactivate mark; move point to end of current line.
-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")
-  (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")
-  (pc-select-maybe-deactivate-mark)
-  (if (null arg)
-      (setq arg 1))
-  (forward-line (- arg))
-  (setq this-command 'forward-line)
-)
-
-(defun scroll-down-nomark (&optional arg)
-  "Deactivate mark; scroll down ARG lines; or near full screen if no ARG.
-A near full screen is `next-screen-context-lines' less than a full screen.
-Negative ARG means scroll upward.
-When calling from a program, supply a number as argument or nil.
-Attempting to scroll past the edge of buffer does not raise an
-error, unless `pc-select-override-scroll-error' is nil."
-  (interactive "P")
-  (pc-select-maybe-deactivate-mark)
-  (cond (pc-select-override-scroll-error
-	 (condition-case nil (scroll-down arg)
-	   (beginning-of-buffer (goto-char (point-min)))))
-	(t (scroll-down arg))))
-
-(defun end-of-buffer-nomark (&optional arg)
-  "Deactivate mark; move point to the end of the buffer.
-With arg N, put point N/10 of the way from the end.
-
-If the buffer is narrowed, this command uses the beginning and size
-of the accessible part of the buffer.
-
-Don't use this command in Lisp programs!
-\(goto-char (point-max)) is faster and avoids clobbering the mark."
-  (interactive "P")
-  (pc-select-maybe-deactivate-mark)
-  (let ((size (- (point-max) (point-min))))
-    (goto-char (if arg
-		   (- (point-max)
-		      (if (> size 10000)
-			  ;; Avoid overflow for large buffer sizes!
-			  (* (prefix-numeric-value arg)
-			     (/ size 10))
-			(/ (* size (prefix-numeric-value arg)) 10)))
-		 (point-max))))
-  ;; If we went to a place in the middle of the buffer,
-  ;; adjust it to the beginning of a line.
-  (if arg (forward-line 1)
-    ;; If the end of the buffer is not already on the screen,
-    ;; then scroll specially to put it near, but not at, the bottom.
-    (if (let ((old-point (point)))
-	  (save-excursion
-		    (goto-char (window-start))
-		    (vertical-motion (window-height))
-		    (< (point) old-point)))
-	(progn
-	  (overlay-recenter (point))
-	  (recenter -3)))))
-
-
-;;;;;;;;;;;;;;;;;;;;
-;;;;;; backwards and mark
-;;;;;;;;;;;;;;;;;;;;
-
-(defun backward-char-mark (&optional arg)
-  "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")
-  (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")
-  (pc-select-ensure-mark)
-  (backward-word arg))
-
-(defun backward-sexp-mark (&optional arg)
-  "Ensure mark is active; move backward across one balanced expression (sexp).
-With argument, do it that many times.  Negative arg -N means
-move forward across N balanced expressions."
-  (interactive "p")
-  (pc-select-ensure-mark)
-  (backward-sexp arg))
-
-(defun backward-paragraph-mark (&optional arg)
-  "Ensure mark is active; move backward to start of paragraph.
-With arg N, do it N times; negative arg -N means move forward N paragraphs.
-
-A paragraph start is the beginning of a line which is a
-`first-line-of-paragraph' or which is ordinary text and follows a
-paragraph-separating line; except: if the first real line of a
-paragraph is preceded by a blank line, the paragraph starts at that
-blank line.
-
-See `forward-paragraph' for more information."
-  (interactive "p")
-  (pc-select-ensure-mark)
-  (backward-paragraph arg))
-
-(defun previous-line-mark (&optional arg)
-  "Ensure mark is active; move cursor vertically up ARG lines.
-If there is no character in the target line exactly over the current column,
-the cursor is positioned after the character in that line which spans this
-column, or at the end of the line if it is not long enough.
-
-The command \\[set-goal-column] can be used to create
-a semipermanent goal column to which this command always moves.
-Then it does not try to move vertically.
-
-If you are thinking of using this in a Lisp program, consider using
-`forward-line' with a negative argument instead.  It is usually easier
-to use and more reliable (no dependence on goal column, etc.)."
-  (interactive "p")
-  (pc-select-ensure-mark)
-  (with-no-warnings (previous-line arg))
-  (setq this-command 'previous-line))
-
-(defun beginning-of-line-mark (&optional arg)
-  "Ensure mark is active; move point to beginning of current line.
-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")
-  (pc-select-ensure-mark)
-  (beginning-of-line arg))
-
-
-(defun scroll-up-mark (&optional arg)
-  "Ensure mark is active; scroll upward ARG lines; or near full screen if no ARG.
-A near full screen is `next-screen-context-lines' less than a full screen.
-Negative ARG means scroll downward.
-When calling from a program, supply a number as argument or nil.
-Attempting to scroll past the edge of buffer does not raise an
-error, unless `pc-select-override-scroll-error' is nil."
-  (interactive "P")
-  (pc-select-ensure-mark)
-  (cond (pc-select-override-scroll-error
-	 (condition-case nil (scroll-up arg)
-	   (end-of-buffer (goto-char (point-max)))))
-	(t (scroll-up arg))))
-
-(defun beginning-of-buffer-mark (&optional arg)
-  "Ensure mark is active; move point to the beginning of the buffer.
-With arg N, put point N/10 of the way from the beginning.
-
-If the buffer is narrowed, this command uses the beginning and size
-of the accessible part of the buffer.
-
-Don't use this command in Lisp programs!
-\(goto-char (point-min)) is faster and avoids clobbering the mark."
-  (interactive "P")
-  (pc-select-ensure-mark)
-  (let ((size (- (point-max) (point-min))))
-    (goto-char (if arg
-		   (+ (point-min)
-		      (if (> size 10000)
-			  ;; Avoid overflow for large buffer sizes!
-			  (* (prefix-numeric-value arg)
-			     (/ size 10))
-			(/ (+ 10 (* size (prefix-numeric-value arg))) 10)))
-		 (point-min))))
-  (if arg (forward-line 1)))
-
-;;;;;;;;
-;;; no mark
-;;;;;;;;
-
-(defun backward-char-nomark (&optional arg)
-  "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")
-  (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")
-  (pc-select-maybe-deactivate-mark)
-  (backward-word arg))
-
-(defun backward-sexp-nomark (&optional arg)
-  "Deactivate mark; move backward across one balanced expression (sexp).
-With argument, do it that many times.  Negative arg -N means
-move forward across N balanced expressions."
-  (interactive "p")
-  (pc-select-maybe-deactivate-mark)
-  (backward-sexp arg))
-
-(defun backward-paragraph-nomark (&optional arg)
-  "Deactivate mark; move backward to start of paragraph.
-With arg N, do it N times; negative arg -N means move forward N paragraphs.
-
-A paragraph start is the beginning of a line which is a
-`first-line-of-paragraph' or which is ordinary text and follows a
-paragraph-separating line; except: if the first real line of a
-paragraph is preceded by a blank line, the paragraph starts at that
-blank line.
-
-See `forward-paragraph' for more information."
-  (interactive "p")
-  (pc-select-maybe-deactivate-mark)
-  (backward-paragraph arg))
-
-(defun previous-line-nomark (&optional arg)
-  "Deactivate mark; move cursor vertically up ARG lines.
-If there is no character in the target line exactly over the current column,
-the cursor is positioned after the character in that line which spans this
-column, or at the end of the line if it is not long enough.
-
-The command \\[set-goal-column] can be used to create
-a semipermanent goal column to which this command always moves.
-Then it does not try to move vertically."
-  (interactive "p")
-  (pc-select-maybe-deactivate-mark)
-  (with-no-warnings (previous-line arg))
-  (setq this-command 'previous-line))
-
-(defun beginning-of-line-nomark (&optional arg)
-  "Deactivate mark; move point to beginning of current line.
-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")
-  (pc-select-maybe-deactivate-mark)
-  (beginning-of-line arg))
-
-(defun scroll-up-nomark (&optional arg)
-  "Deactivate mark; scroll upward ARG lines; or near full screen if no ARG.
-A near full screen is `next-screen-context-lines' less than a full screen.
-Negative ARG means scroll downward.
-When calling from a program, supply a number as argument or nil.
-Attempting to scroll past the edge of buffer does not raise an
-error, unless `pc-select-override-scroll-error' is nil."
-  (interactive "P")
-  (pc-select-maybe-deactivate-mark)
-  (cond (pc-select-override-scroll-error
-	 (condition-case nil (scroll-up arg)
-	   (end-of-buffer (goto-char (point-max)))))
-	(t (scroll-up arg))))
-
-(defun beginning-of-buffer-nomark (&optional arg)
-  "Deactivate mark; move point to the beginning of the buffer.
-With arg N, put point N/10 of the way from the beginning.
-
-If the buffer is narrowed, this command uses the beginning and size
-of the accessible part of the buffer.
-
-Don't use this command in Lisp programs!
-\(goto-char (point-min)) is faster and avoids clobbering the mark."
-  (interactive "P")
-  (pc-select-maybe-deactivate-mark)
-  (let ((size (- (point-max) (point-min))))
-    (goto-char (if arg
-		   (+ (point-min)
-		      (if (> size 10000)
-			  ;; Avoid overflow for large buffer sizes!
-			  (* (prefix-numeric-value arg)
-			     (/ size 10))
-			(/ (+ 10 (* size (prefix-numeric-value arg))) 10)))
-		 (point-min))))
-  (if arg (forward-line 1)))
-
-
 (defun pc-select-define-keys (alist keymap)
   "Make KEYMAP have the key bindings specified in ALIST."
   (let ((lst alist))
@@ -937,6 +366,7 @@
 
 	    (pc-select-save-and-set-var highlight-nonselected-windows nil)
 	    (pc-select-save-and-set-var transient-mark-mode t)
+	    (pc-select-save-and-set-var shift-select-mode t)
 	    (pc-select-save-and-set-var mark-even-if-inactive t)
 	    (pc-select-save-and-set-mode delete-selection-mode 1))
 	;;else
@@ -974,6 +404,7 @@
 
       (pc-select-restore-var highlight-nonselected-windows)
       (pc-select-restore-var transient-mark-mode)
+      (pc-select-restore-var shift-select-mode)
       (pc-select-restore-var mark-even-if-inactive)
       (pc-select-restore-mode delete-selection-mode)
       (and pc-select-old-M-delete-binding
@@ -981,5 +412,6 @@
 	     pc-select-old-M-delete-binding))
       (setq pc-select-key-bindings-alist nil
 	    pc-select-saved-settings-alist nil))))
+(make-obsolete 'pc-selection-mode 'delete-selection-mode "24.1")
 
 ;;; pc-select.el ends here


[Message part 3 (message/rfc822, inline)]
From: PJ Weisberg <pj <at> irregularexpressions.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 23.2; Home and End keys don't work as expected with both
	pc-selection-mode and visual-line-mode enabled
Date: Sat, 29 Jan 2011 21:00:09 -0800
[Message part 4 (text/plain, inline)]
1) Open or create a file with logical lines longer than the width of the
window.
2) Enable visual-line-mode and pc-selection-mode (order doesn't matter).
3) Press the <home> and/or <end> keys with point on one of these long
lines.

Expected: Point moves to the beginning/end of the current visual line.
Observed: Point moves to the beginning/end of the current logical line.

I've attached two (mutually exclusive) patches against the trunk.  I've
never submitted a patch to Emacs before, so please let me know which is more
in line with the preferred way of doing things.

--PJ
[Message part 5 (text/html, inline)]
[pc-visual-line_if.patch (text/x-patch, attachment)]
[pc-visual-line_function.patch (text/x-patch, attachment)]

This bug report was last modified 14 years and 165 days ago.

Previous Next


GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.