From: Stefan Monnier Date: Tue, 8 Feb 2011 20:45:53 +0000 (-0500) Subject: * lisp/obsolete/pc-select.el: Rename from emulation/pc-select.el. X-Git-Url: http://git.hcoop.net/bpt/emacs.git/commitdiff_plain/6ca94a0b49f08f2e59aabc51545eb8a1f726ba8b * lisp/obsolete/pc-select.el: Rename from emulation/pc-select.el. Remove the mark/nomark handling, and activate shift-select-mode instead. * lisp/obsolete/pc-mode.el: Rename from emulation/pc-mode.el. Fixes: debbugs:7940 --- diff --git a/etc/NEWS b/etc/NEWS index 020aa2f26a..11425c2134 100644 --- a/etc/NEWS +++ b/etc/NEWS @@ -562,9 +562,9 @@ listing object name completions when being sent text via ** sregex.el is now obsolete, since rx.el is a strict superset. -** s-region.el is now declared obsolete, superceded by shift-select-mode -enabled by default in 23.1. - +** s-region.el and pc-select are now declared obsolete, +superceded by shift-select-mode enabled by default in 23.1. +** pc-mode.el is also declared obsolete. ** gdb-mi *** GDB User Interface migrated to GDB Machine Interface and now diff --git a/lisp/ChangeLog b/lisp/ChangeLog index 8826f88456..101ea1d20b 100644 --- a/lisp/ChangeLog +++ b/lisp/ChangeLog @@ -1,3 +1,10 @@ +2011-02-08 Stefan Monnier + + * obsolete/pc-select.el: Rename from emulation/pc-select.el (bug#7940). + Remove the mark/nomark handling, and activate shift-select-mode instead. + + * obsolete/pc-mode.el: Rename from emulation/pc-mode.el. + 2011-02-07 Jay Belanger * calc/calc-units.el (math-logunits-quant): Add support for diff --git a/lisp/emulation/pc-select.el b/lisp/emulation/pc-select.el deleted file mode 100644 index 76562dd75c..0000000000 --- a/lisp/emulation/pc-select.el +++ /dev/null @@ -1,985 +0,0 @@ -;;; pc-select.el --- emulate mark, cut, copy and paste from Motif -;;; (or MAC GUI or MS-windoze (bah)) look-and-feel -;;; including key bindings. - -;; Copyright (C) 1995-1997, 2000-2011 Free Software Foundation, Inc. - -;; Author: Michael Staats -;; Keywords: convenience emulations -;; Created: 26 Sep 1995 - -;; This file is part of GNU Emacs. - -;; GNU Emacs is free software: you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation, either version 3 of the License, or -;; (at your option) any later version. - -;; GNU Emacs is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. - -;; You should have received a copy of the GNU General Public License -;; along with GNU Emacs. If not, see . - -;;; Commentary: - -;; This package emulates the mark, copy, cut and paste look-and-feel of motif -;; programs (which is the same as the MAC gui and (sorry for that) MS-Windows). -;; It modifies the keybindings of the cursor keys and the next, prior, -;; home and end keys. They will modify mark-active. -;; You can still get the old behavior of cursor moving with the -;; control sequences C-f, C-b, etc. -;; This package uses transient-mark-mode and -;; delete-selection-mode. -;; -;; In addition to that all key-bindings from the pc-mode are -;; done here too (as suggested by RMS). -;; -;; As I found out after I finished the first version, s-region.el tries -;; to do the same.... But my code is a little more complete and using -;; delete-selection-mode is very important for the look-and-feel. -;; Pete Forman provided some motif -;; compliant keybindings which I added. I had to modify them a little -;; to add the -mark and -nomark functionality of cursor moving. -;; -;; Credits: -;; Many thanks to all who made comments. -;; Thanks to RMS and Ralf Muschall for criticism. -;; Kevin Cutts added the beginning-of-buffer -;; and end-of-buffer functions which I modified a little. -;; David Biesack suggested some more cleanup. -;; Thanks to Pete Forman -;; for additional motif keybindings. -;; Thanks to jvromans@squirrel.nl (Johan Vromans) for a bug report -;; concerning setting of this-command. -;; Dan Nicolaescu suggested suppressing the -;; scroll-up/scroll-down error. -;; Eli Barzilay (eli@cs.bgu.ac.il) suggested the sexps functions and -;; keybindings. -;; -;; Ok, some details about the idea of PC Selection mode: -;; -;; o The standard keys for moving around (right, left, up, down, home, end, -;; prior, next, called "move-keys" from now on) will always de-activate -;; the mark. -;; o If you press "Shift" together with the "move-keys", the region -;; you pass along is activated -;; o You have the copy, cut and paste functions (as in many other programs) -;; which will operate on the active region -;; It was not possible to bind them to C-v, C-x and C-c for obvious -;; emacs reasons. -;; They will be bound according to the "old" behavior to S-delete (cut), -;; S-insert (paste) and C-insert (copy). These keys do the same in many -;; other programs. -;; - -;;; Code: - -;; Customization: -(defgroup pc-select nil - "Emulate pc bindings." - :prefix "pc-select" - :group 'emulations) - -(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. -The scroll commands normally generate an error if you try to scroll -past the top or bottom of the buffer. This is annoying when selecting -text with these commands. If you set this variable to non-nil, these -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. -Other keys that emulate pc-behavior will be untouched. -This gives mostly Emacs-like behavior with only the selection keys enabled." - :type 'boolean - :group 'pc-select) - -(defcustom pc-select-meta-moves-sexps nil - "Non-nil means move sexp-wise with Meta key, otherwise move word-wise." - :type 'boolean - :group 'pc-select) - -(defcustom pc-selection-mode-hook nil - "The hook to run when PC Selection mode is toggled." - :type 'hook - :group 'pc-select) - -(defvar pc-select-saved-settings-alist nil - "The values of the variables before PC Selection mode was toggled on. -When PC Selection mode is toggled on, it sets quite a few variables -for its own purposes. This alist holds the original values of the -variables PC Selection mode had set, so that these variables can be -restored to their original values when PC Selection mode is toggled off.") - -(defvar pc-select-map nil - "The keymap used as the global map when PC Selection mode is on." ) - -(defvar pc-select-saved-global-map nil - "The global map that was in effect when PC Selection mode was toggled on.") - -(defvar pc-select-key-bindings-alist nil - "This alist holds all the key bindings PC Selection mode sets.") - -(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) - - ;; The following bindings are useful on Sun Type 3 keyboards - ;; They implement the Get-Delete-Put (copy-cut-paste) - ;; functions from sunview on the L6, L8 and L10 keys - ;; Sam Steingold says that f16 is copy and f18 is paste. - ([f16] . copy-region-as-kill) - ([f18] . yank) - ([f20] . kill-region) - - ;; The following bindings are from Pete Forman. - ([f6] . other-window) ; KNextPane F6 - ([C-delete] . kill-line) ; KEraseEndLine cDel - ("\M-\d" . undo) ; KUndo aBS - - ;; The following binding is taken from pc-mode.el - ;; as suggested by RMS. - ;; 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))) - -(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))) - "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 -list get installed otherwise.") - -;; This is for tty. We don't turn on normal-erase-is-backspace, -;; but bind keys as pc-selection-mode did before -;; normal-erase-is-backspace was invented, to keep us back -;; compatible. -(defvar pc-select-tty-key-bindings - '(([delete] . delete-char) ; KDelete Del - ([C-backspace] . backward-kill-word)) - "The list of key bindings controlled by `pc-select-selection-keys-only'. -These key bindings get installed when running in a tty, but only if -`pc-select-selection-keys-only' is nil.") - -(defvar pc-select-old-M-delete-binding nil - "Holds the old mapping of [M-delete] in the `function-key-map'. -This variable holds the value associated with [M-delete] in the -`function-key-map' before PC Selection mode had changed that -association.") - -;;;; -;; misc -;;;; - -(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)) - (while lst - (define-key keymap (caar lst) (cdar lst)) - (setq lst (cdr lst))))) - -(defun pc-select-restore-keys (alist keymap saved-map) - "Use ALIST to restore key bindings from SAVED-MAP into KEYMAP. -Go through all the key bindings in ALIST, and, for each key -binding, if KEYMAP and ALIST still agree on the key binding, -restore the previous value of that key binding from SAVED-MAP." - (let ((lst alist)) - (while lst - (when (equal (lookup-key keymap (caar lst)) (cdar lst)) - (define-key keymap (caar lst) (lookup-key saved-map (caar lst)))) - (setq lst (cdr lst))))) - -(defmacro pc-select-add-to-alist (alist var val) - "Ensure that ALIST contains the cons cell (VAR . VAL). -If a cons cell whose car is VAR is already on the ALIST, update the -cdr of that cell with VAL. Otherwise, make a new cons cell -\(VAR . VAL), and prepend it onto ALIST." - (let ((elt (make-symbol "elt"))) - `(let ((,elt (assq ',var ,alist))) - (if ,elt - (setcdr ,elt ,val) - (setq ,alist (cons (cons ',var ,val) ,alist)))))) - -(defmacro pc-select-save-and-set-var (var newval) - "Set VAR to NEWVAL; save the old value. -The old value is saved on the `pc-select-saved-settings-alist'." - `(when (boundp ',var) - (pc-select-add-to-alist pc-select-saved-settings-alist ,var ,var) - (setq ,var ,newval))) - -(defmacro pc-select-save-and-set-mode (mode &optional arg mode-var) - "Call the function MODE; save the old value of the variable MODE. -MODE is presumed to be a function which turns on a minor mode. First, -save the value of the variable MODE on `pc-select-saved-settings-alist'. -Then, if ARG is specified, call MODE with ARG, otherwise call it with -nil as an argument. If MODE-VAR is specified, save the value of the -variable MODE-VAR (instead of the value of the variable MODE) on -`pc-select-saved-settings-alist'." - (unless mode-var (setq mode-var mode)) - `(when (fboundp ',mode) - (pc-select-add-to-alist pc-select-saved-settings-alist - ,mode-var ,mode-var) - (,mode ,arg))) - -(defmacro pc-select-restore-var (var) - "Restore the previous value of the variable VAR. -Look up VAR's previous value in `pc-select-saved-settings-alist', and, -if the value is found, set VAR to that value." - (let ((elt (make-symbol "elt"))) - `(let ((,elt (assq ',var pc-select-saved-settings-alist))) - (unless (null ,elt) - (setq ,var (cdr ,elt)))))) - -(defmacro pc-select-restore-mode (mode) - "Restore the previous state (either on or off) of the minor mode MODE. -Look up the value of the variable MODE on `pc-select-saved-settings-alist'. -If the value is non-nil, call the function MODE with an argument of -1, otherwise call it with an argument of -1." - (let ((elt (make-symbol "elt"))) - `(when (fboundp ',mode) - (let ((,elt (assq ',mode pc-select-saved-settings-alist))) - (unless (null ,elt) - (,mode (if (cdr ,elt) 1 -1))))))) - - -;;;###autoload -(define-minor-mode pc-selection-mode - "Change mark behavior to emulate Motif, Mac or MS-Windows cut and paste style. - -This mode enables Delete Selection mode and Transient Mark mode. - -The arrow keys (and others) are bound to new functions -which modify the status of the mark. - -The ordinary arrow keys disable the mark. -The shift-arrow keys move, leaving the mark behind. - -C-LEFT and C-RIGHT move back or forward one word, disabling the mark. -S-C-LEFT and S-C-RIGHT move back or forward one word, leaving the mark behind. - -M-LEFT and M-RIGHT move back or forward one word or sexp, disabling the mark. -S-M-LEFT and S-M-RIGHT move back or forward one word or sexp, leaving the mark -behind. To control whether these keys move word-wise or sexp-wise set the -variable `pc-select-meta-moves-sexps' after loading pc-select.el but before -turning PC Selection mode on. - -C-DOWN and C-UP move back or forward a paragraph, disabling the mark. -S-C-DOWN and S-C-UP move back or forward a paragraph, leaving the mark behind. - -HOME moves to beginning of line, disabling the mark. -S-HOME moves to beginning of line, leaving the mark behind. -With Ctrl or Meta, these keys move to beginning of buffer instead. - -END moves to end of line, disabling the mark. -S-END moves to end of line, leaving the mark behind. -With Ctrl or Meta, these keys move to end of buffer instead. - -PRIOR or PAGE-UP scrolls and disables the mark. -S-PRIOR or S-PAGE-UP scrolls and leaves the mark behind. - -S-DELETE kills the region (`kill-region'). -S-INSERT yanks text from the kill ring (`yank'). -C-INSERT copies the region into the kill ring (`copy-region-as-kill'). - -In addition, certain other PC bindings are imitated (to avoid this, set -the variable `pc-select-selection-keys-only' to t after loading pc-select.el -but before calling PC Selection mode): - - F6 other-window - DELETE delete-char - C-DELETE kill-line - M-DELETE kill-word - C-M-DELETE kill-sexp - C-BACKSPACE backward-kill-word - M-BACKSPACE undo" - ;; FIXME: bring pc-bindings-mode here ? - nil nil nil - - :group 'pc-select - :global t - - (if pc-selection-mode - (if (null pc-select-key-bindings-alist) - (progn - (setq pc-select-saved-global-map (copy-keymap (current-global-map))) - (setq pc-select-key-bindings-alist - (append pc-select-default-key-bindings - (if pc-select-selection-keys-only - nil - pc-select-extra-key-bindings) - (if pc-select-meta-moves-sexps - (car pc-select-meta-moves-sexps-key-bindings) - (cadr pc-select-meta-moves-sexps-key-bindings)) - (if (or pc-select-selection-keys-only - (eq window-system 'x) - (memq system-name '(ms-dos windows-nt))) - nil - pc-select-tty-key-bindings))) - - (pc-select-define-keys pc-select-key-bindings-alist - (current-global-map)) - - (unless (or pc-select-selection-keys-only - (eq window-system 'x) - (memq system-name '(ms-dos windows-nt))) - ;; it is not clear that we need the following line - ;; I hope it doesn't do too much harm to leave it in, though... - (setq pc-select-old-M-delete-binding - (lookup-key function-key-map [M-delete])) - (define-key function-key-map [M-delete] [?\M-d])) - - (when (and (not pc-select-selection-keys-only) - (or (eq window-system 'x) - (memq system-name '(ms-dos windows-nt))) - (fboundp 'normal-erase-is-backspace-mode)) - (pc-select-save-and-set-mode normal-erase-is-backspace-mode 1 - normal-erase-is-backspace)) - ;; the original author also had this above: - ;; (setq-default normal-erase-is-backspace t) - ;; However, the documentation for the variable says that - ;; "setting it with setq has no effect", so I'm removing it. - - (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 mark-even-if-inactive t) - (pc-select-save-and-set-mode delete-selection-mode 1)) - ;;else - ;; If the user turned on pc-selection-mode a second time - ;; do not clobber the values of the variables that were - ;; saved from before pc-selection mode was activated -- - ;; just make sure the values are the way we like them. - (pc-select-define-keys pc-select-key-bindings-alist - (current-global-map)) - (unless (or pc-select-selection-keys-only - (eq window-system 'x) - (memq system-name '(ms-dos windows-nt))) - ;; it is not clear that we need the following line - ;; I hope it doesn't do too much harm to leave it in, though... - (define-key function-key-map [M-delete] [?\M-d])) - (when (and (not pc-select-selection-keys-only) - (or (eq window-system 'x) - (memq system-name '(ms-dos windows-nt))) - (fboundp 'normal-erase-is-backspace-mode)) - (normal-erase-is-backspace-mode 1)) - (setq highlight-nonselected-windows nil) - (setq transient-mark-mode t) - (setq mark-even-if-inactive t) - (delete-selection-mode 1)) - ;;else - (when pc-select-key-bindings-alist - (when (and (not pc-select-selection-keys-only) - (or (eq window-system 'x) - (memq system-name '(ms-dos windows-nt)))) - (pc-select-restore-mode normal-erase-is-backspace-mode)) - - (pc-select-restore-keys - pc-select-key-bindings-alist (current-global-map) - pc-select-saved-global-map) - - (pc-select-restore-var highlight-nonselected-windows) - (pc-select-restore-var transient-mark-mode) - (pc-select-restore-var mark-even-if-inactive) - (pc-select-restore-mode delete-selection-mode) - (and pc-select-old-M-delete-binding - (define-key function-key-map [M-delete] - pc-select-old-M-delete-binding)) - (setq pc-select-key-bindings-alist nil - pc-select-saved-settings-alist nil)))) - -;;; pc-select.el ends here diff --git a/lisp/emulation/pc-mode.el b/lisp/obsolete/pc-mode.el similarity index 98% rename from lisp/emulation/pc-mode.el rename to lisp/obsolete/pc-mode.el index c0ed1925b4..192392d382 100644 --- a/lisp/emulation/pc-mode.el +++ b/lisp/obsolete/pc-mode.el @@ -4,6 +4,7 @@ ;; Maintainer: FSF ;; Keywords: emulations +;; Obsolete-since: 24.1 ;; This file is part of GNU Emacs. diff --git a/lisp/obsolete/pc-select.el b/lisp/obsolete/pc-select.el new file mode 100644 index 0000000000..9a5f9e9d9d --- /dev/null +++ b/lisp/obsolete/pc-select.el @@ -0,0 +1,417 @@ +;;; pc-select.el --- emulate mark, cut, copy and paste from Motif +;;; (or MAC GUI or MS-windoze (bah)) look-and-feel +;;; including key bindings. + +;; Copyright (C) 1995-1997, 2000-2011 Free Software Foundation, Inc. + +;; Author: Michael Staats +;; Keywords: convenience emulations +;; Created: 26 Sep 1995 +;; Obsolete-since: 24.1 + +;; This file is part of GNU Emacs. + +;; GNU Emacs is free software: you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. + +;; GNU Emacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs. If not, see . + +;;; Commentary: + +;; This package emulates the mark, copy, cut and paste look-and-feel of motif +;; programs (which is the same as the MAC gui and (sorry for that) MS-Windows). +;; It modifies the keybindings of the cursor keys and the next, prior, +;; home and end keys. They will modify mark-active. +;; You can still get the old behavior of cursor moving with the +;; control sequences C-f, C-b, etc. +;; This package uses transient-mark-mode and +;; delete-selection-mode. +;; +;; In addition to that all key-bindings from the pc-mode are +;; done here too (as suggested by RMS). +;; +;; As I found out after I finished the first version, s-region.el tries +;; to do the same.... But my code is a little more complete and using +;; delete-selection-mode is very important for the look-and-feel. +;; Pete Forman provided some motif +;; compliant keybindings which I added. I had to modify them a little +;; to add the -mark and -nomark functionality of cursor moving. +;; +;; Credits: +;; Many thanks to all who made comments. +;; Thanks to RMS and Ralf Muschall for criticism. +;; Kevin Cutts added the beginning-of-buffer +;; and end-of-buffer functions which I modified a little. +;; David Biesack suggested some more cleanup. +;; Thanks to Pete Forman +;; for additional motif keybindings. +;; Thanks to jvromans@squirrel.nl (Johan Vromans) for a bug report +;; concerning setting of this-command. +;; Dan Nicolaescu suggested suppressing the +;; scroll-up/scroll-down error. +;; Eli Barzilay (eli@cs.bgu.ac.il) suggested the sexps functions and +;; keybindings. +;; +;; Ok, some details about the idea of PC Selection mode: +;; +;; o The standard keys for moving around (right, left, up, down, home, end, +;; prior, next, called "move-keys" from now on) will always de-activate +;; the mark. +;; o If you press "Shift" together with the "move-keys", the region +;; you pass along is activated +;; o You have the copy, cut and paste functions (as in many other programs) +;; which will operate on the active region +;; It was not possible to bind them to C-v, C-x and C-c for obvious +;; emacs reasons. +;; They will be bound according to the "old" behavior to S-delete (cut), +;; S-insert (paste) and C-insert (copy). These keys do the same in many +;; other programs. +;; + +;;; Code: + +;; Customization: +(defgroup pc-select nil + "Emulate pc bindings." + :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. +The scroll commands normally generate an error if you try to scroll +past the top or bottom of the buffer. This is annoying when selecting +text with these commands. If you set this variable to non-nil, these +errors are suppressed." + :type 'boolean + :group 'pc-select) + +(defcustom pc-select-selection-keys-only nil + "Non-nil means only bind the basic selection keys when started. +Other keys that emulate pc-behavior will be untouched. +This gives mostly Emacs-like behavior with only the selection keys enabled." + :type 'boolean + :group 'pc-select) + +(defcustom pc-select-meta-moves-sexps nil + "Non-nil means move sexp-wise with Meta key, otherwise move word-wise." + :type 'boolean + :group 'pc-select) + +(defcustom pc-selection-mode-hook nil + "The hook to run when PC Selection mode is toggled." + :type 'hook + :group 'pc-select) + +(defvar pc-select-saved-settings-alist nil + "The values of the variables before PC Selection mode was toggled on. +When PC Selection mode is toggled on, it sets quite a few variables +for its own purposes. This alist holds the original values of the +variables PC Selection mode had set, so that these variables can be +restored to their original values when PC Selection mode is toggled off.") + +(defvar pc-select-map nil + "The keymap used as the global map when PC Selection mode is on." ) + +(defvar pc-select-saved-global-map nil + "The global map that was in effect when PC Selection mode was toggled on.") + +(defvar pc-select-key-bindings-alist nil + "This alist holds all the key bindings PC Selection mode sets.") + +(defvar pc-select-default-key-bindings nil + "These key bindings always get set by PC Selection mode.") + +(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) + ;; functions from sunview on the L6, L8 and L10 keys + ;; Sam Steingold says that f16 is copy and f18 is paste. + ([f16] . copy-region-as-kill) + ([f18] . yank) + ([f20] . kill-region) + + ;; The following bindings are from Pete Forman. + ([f6] . other-window) ; KNextPane F6 + ([C-delete] . kill-line) ; KEraseEndLine cDel + ("\M-\d" . undo) ; KUndo aBS + + ;; The following binding is taken from pc-mode.el + ;; as suggested by RMS. + ;; 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)) + "Key bindings to set only if `pc-select-selection-keys-only' is nil.") + +(defvar pc-select-meta-moves-sexps-key-bindings + '((([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 +list get installed otherwise.") + +;; This is for tty. We don't turn on normal-erase-is-backspace, +;; but bind keys as pc-selection-mode did before +;; normal-erase-is-backspace was invented, to keep us back +;; compatible. +(defvar pc-select-tty-key-bindings + '(([delete] . delete-char) ; KDelete Del + ([C-backspace] . backward-kill-word)) + "The list of key bindings controlled by `pc-select-selection-keys-only'. +These key bindings get installed when running in a tty, but only if +`pc-select-selection-keys-only' is nil.") + +(defvar pc-select-old-M-delete-binding nil + "Holds the old mapping of [M-delete] in the `function-key-map'. +This variable holds the value associated with [M-delete] in the +`function-key-map' before PC Selection mode had changed that +association.") + +;;;; +;; misc +;;;; + +(provide 'pc-select) + +(defun pc-select-define-keys (alist keymap) + "Make KEYMAP have the key bindings specified in ALIST." + (let ((lst alist)) + (while lst + (define-key keymap (caar lst) (cdar lst)) + (setq lst (cdr lst))))) + +(defun pc-select-restore-keys (alist keymap saved-map) + "Use ALIST to restore key bindings from SAVED-MAP into KEYMAP. +Go through all the key bindings in ALIST, and, for each key +binding, if KEYMAP and ALIST still agree on the key binding, +restore the previous value of that key binding from SAVED-MAP." + (let ((lst alist)) + (while lst + (when (equal (lookup-key keymap (caar lst)) (cdar lst)) + (define-key keymap (caar lst) (lookup-key saved-map (caar lst)))) + (setq lst (cdr lst))))) + +(defmacro pc-select-add-to-alist (alist var val) + "Ensure that ALIST contains the cons cell (VAR . VAL). +If a cons cell whose car is VAR is already on the ALIST, update the +cdr of that cell with VAL. Otherwise, make a new cons cell +\(VAR . VAL), and prepend it onto ALIST." + (let ((elt (make-symbol "elt"))) + `(let ((,elt (assq ',var ,alist))) + (if ,elt + (setcdr ,elt ,val) + (setq ,alist (cons (cons ',var ,val) ,alist)))))) + +(defmacro pc-select-save-and-set-var (var newval) + "Set VAR to NEWVAL; save the old value. +The old value is saved on the `pc-select-saved-settings-alist'." + `(when (boundp ',var) + (pc-select-add-to-alist pc-select-saved-settings-alist ,var ,var) + (setq ,var ,newval))) + +(defmacro pc-select-save-and-set-mode (mode &optional arg mode-var) + "Call the function MODE; save the old value of the variable MODE. +MODE is presumed to be a function which turns on a minor mode. First, +save the value of the variable MODE on `pc-select-saved-settings-alist'. +Then, if ARG is specified, call MODE with ARG, otherwise call it with +nil as an argument. If MODE-VAR is specified, save the value of the +variable MODE-VAR (instead of the value of the variable MODE) on +`pc-select-saved-settings-alist'." + (unless mode-var (setq mode-var mode)) + `(when (fboundp ',mode) + (pc-select-add-to-alist pc-select-saved-settings-alist + ,mode-var ,mode-var) + (,mode ,arg))) + +(defmacro pc-select-restore-var (var) + "Restore the previous value of the variable VAR. +Look up VAR's previous value in `pc-select-saved-settings-alist', and, +if the value is found, set VAR to that value." + (let ((elt (make-symbol "elt"))) + `(let ((,elt (assq ',var pc-select-saved-settings-alist))) + (unless (null ,elt) + (setq ,var (cdr ,elt)))))) + +(defmacro pc-select-restore-mode (mode) + "Restore the previous state (either on or off) of the minor mode MODE. +Look up the value of the variable MODE on `pc-select-saved-settings-alist'. +If the value is non-nil, call the function MODE with an argument of +1, otherwise call it with an argument of -1." + (let ((elt (make-symbol "elt"))) + `(when (fboundp ',mode) + (let ((,elt (assq ',mode pc-select-saved-settings-alist))) + (unless (null ,elt) + (,mode (if (cdr ,elt) 1 -1))))))) + + +;;;###autoload +(define-minor-mode pc-selection-mode + "Change mark behavior to emulate Motif, Mac or MS-Windows cut and paste style. + +This mode enables Delete Selection mode and Transient Mark mode. + +The arrow keys (and others) are bound to new functions +which modify the status of the mark. + +The ordinary arrow keys disable the mark. +The shift-arrow keys move, leaving the mark behind. + +C-LEFT and C-RIGHT move back or forward one word, disabling the mark. +S-C-LEFT and S-C-RIGHT move back or forward one word, leaving the mark behind. + +M-LEFT and M-RIGHT move back or forward one word or sexp, disabling the mark. +S-M-LEFT and S-M-RIGHT move back or forward one word or sexp, leaving the mark +behind. To control whether these keys move word-wise or sexp-wise set the +variable `pc-select-meta-moves-sexps' after loading pc-select.el but before +turning PC Selection mode on. + +C-DOWN and C-UP move back or forward a paragraph, disabling the mark. +S-C-DOWN and S-C-UP move back or forward a paragraph, leaving the mark behind. + +HOME moves to beginning of line, disabling the mark. +S-HOME moves to beginning of line, leaving the mark behind. +With Ctrl or Meta, these keys move to beginning of buffer instead. + +END moves to end of line, disabling the mark. +S-END moves to end of line, leaving the mark behind. +With Ctrl or Meta, these keys move to end of buffer instead. + +PRIOR or PAGE-UP scrolls and disables the mark. +S-PRIOR or S-PAGE-UP scrolls and leaves the mark behind. + +S-DELETE kills the region (`kill-region'). +S-INSERT yanks text from the kill ring (`yank'). +C-INSERT copies the region into the kill ring (`copy-region-as-kill'). + +In addition, certain other PC bindings are imitated (to avoid this, set +the variable `pc-select-selection-keys-only' to t after loading pc-select.el +but before calling PC Selection mode): + + F6 other-window + DELETE delete-char + C-DELETE kill-line + M-DELETE kill-word + C-M-DELETE kill-sexp + C-BACKSPACE backward-kill-word + M-BACKSPACE undo" + ;; FIXME: bring pc-bindings-mode here ? + nil nil nil + + :group 'pc-select + :global t + + (if pc-selection-mode + (if (null pc-select-key-bindings-alist) + (progn + (setq pc-select-saved-global-map (copy-keymap (current-global-map))) + (setq pc-select-key-bindings-alist + (append pc-select-default-key-bindings + (if pc-select-selection-keys-only + nil + pc-select-extra-key-bindings) + (if pc-select-meta-moves-sexps + (car pc-select-meta-moves-sexps-key-bindings) + (cadr pc-select-meta-moves-sexps-key-bindings)) + (if (or pc-select-selection-keys-only + (eq window-system 'x) + (memq system-name '(ms-dos windows-nt))) + nil + pc-select-tty-key-bindings))) + + (pc-select-define-keys pc-select-key-bindings-alist + (current-global-map)) + + (unless (or pc-select-selection-keys-only + (eq window-system 'x) + (memq system-name '(ms-dos windows-nt))) + ;; it is not clear that we need the following line + ;; I hope it doesn't do too much harm to leave it in, though... + (setq pc-select-old-M-delete-binding + (lookup-key function-key-map [M-delete])) + (define-key function-key-map [M-delete] [?\M-d])) + + (when (and (not pc-select-selection-keys-only) + (or (eq window-system 'x) + (memq system-name '(ms-dos windows-nt))) + (fboundp 'normal-erase-is-backspace-mode)) + (pc-select-save-and-set-mode normal-erase-is-backspace-mode 1 + normal-erase-is-backspace)) + ;; the original author also had this above: + ;; (setq-default normal-erase-is-backspace t) + ;; However, the documentation for the variable says that + ;; "setting it with setq has no effect", so I'm removing it. + + (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 + ;; If the user turned on pc-selection-mode a second time + ;; do not clobber the values of the variables that were + ;; saved from before pc-selection mode was activated -- + ;; just make sure the values are the way we like them. + (pc-select-define-keys pc-select-key-bindings-alist + (current-global-map)) + (unless (or pc-select-selection-keys-only + (eq window-system 'x) + (memq system-name '(ms-dos windows-nt))) + ;; it is not clear that we need the following line + ;; I hope it doesn't do too much harm to leave it in, though... + (define-key function-key-map [M-delete] [?\M-d])) + (when (and (not pc-select-selection-keys-only) + (or (eq window-system 'x) + (memq system-name '(ms-dos windows-nt))) + (fboundp 'normal-erase-is-backspace-mode)) + (normal-erase-is-backspace-mode 1)) + (setq highlight-nonselected-windows nil) + (setq transient-mark-mode t) + (setq mark-even-if-inactive t) + (delete-selection-mode 1)) + ;;else + (when pc-select-key-bindings-alist + (when (and (not pc-select-selection-keys-only) + (or (eq window-system 'x) + (memq system-name '(ms-dos windows-nt)))) + (pc-select-restore-mode normal-erase-is-backspace-mode)) + + (pc-select-restore-keys + pc-select-key-bindings-alist (current-global-map) + pc-select-saved-global-map) + + (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 + (define-key function-key-map [M-delete] + 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