mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-14 09:39:42 +00:00
127 lines
4.6 KiB
EmacsLisp
127 lines
4.6 KiB
EmacsLisp
;;; s-region.el --- set region using shift key
|
|
|
|
;; Copyright (C) 1994, 1995, 2001, 2002, 2003, 2004,
|
|
;; 2005, 2006 Free Software Foundation, Inc.
|
|
|
|
;; Author: Morten Welinder <terra@diku.dk>
|
|
;; Keywords: terminals
|
|
;; Favourite-brand-of-beer: None, I hate beer.
|
|
|
|
;; 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 2, 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; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
;; Boston, MA 02110-1301, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;; Having loaded this code you can set the region by holding down the
|
|
;; shift key and move the cursor to the other end of the region. The
|
|
;; functionality provided by this code is similar to that provided by
|
|
;; the editors of Borland International's compilers for ms-dos.
|
|
|
|
;; Currently, s-region-move may be bound only to events that are vectors
|
|
;; of length one and whose last element is a symbol. Also, the functions
|
|
;; that are given this kind of overlay should be (interactive "p")
|
|
;; functions.
|
|
|
|
;; If the following keys are not already bound then...
|
|
;; C-insert is bound to copy-region-as-kill
|
|
;; S-delete is bound to kill-region
|
|
;; S-insert is bound to yank
|
|
|
|
;;; Code:
|
|
|
|
(defvar s-region-overlay (make-overlay 1 1))
|
|
(overlay-put s-region-overlay 'face 'region)
|
|
(overlay-put s-region-overlay 'priority 1000000) ; for hilit19
|
|
|
|
(defun s-region-unshift (key)
|
|
"Remove shift modifier from last keypress KEY and return that as a key."
|
|
(if (vectorp key)
|
|
(let ((last (aref key (1- (length key)))))
|
|
(if (symbolp last)
|
|
(let* ((keyname (symbol-name last))
|
|
(pos (string-match "S-" keyname)))
|
|
(if pos
|
|
;; We skip all initial parts of the event assuming that
|
|
;; those are setting up the prefix argument to the command.
|
|
(vector (intern (concat (substring keyname 0 pos)
|
|
(substring keyname (+ 2 pos)))))
|
|
(error "Non-shifted key: %S" key)))
|
|
(error "Key does not end in a symbol: %S" key)))
|
|
(error "Non-vector key: %S" key)))
|
|
|
|
(defun s-region-move-p1 (&rest arg)
|
|
"This is an overlay function to point-moving keys that are interactive \"p\"."
|
|
(interactive "p")
|
|
(apply (function s-region-move) arg))
|
|
|
|
(defun s-region-move-p2 (&rest arg)
|
|
"This is an overlay function to point-moving keys that are interactive \"P\"."
|
|
(interactive "P")
|
|
(apply (function s-region-move) arg))
|
|
|
|
(defun s-region-move (&rest arg)
|
|
(if (if mark-active (not (equal last-command 's-region-move)) t)
|
|
(set-mark-command nil)
|
|
(message "")) ; delete the "Mark set" message
|
|
(setq this-command 's-region-move)
|
|
(apply (key-binding (s-region-unshift (this-command-keys))) arg)
|
|
(move-overlay s-region-overlay (mark) (point) (current-buffer))
|
|
(sit-for 1)
|
|
(delete-overlay s-region-overlay))
|
|
|
|
(defun s-region-bind (keylist &optional map)
|
|
"Bind shifted keys in KEYLIST to `s-region-move-p1' or `s-region-move-p2'.
|
|
Each key in KEYLIST is shifted and bound to one of the `s-region-move'
|
|
functions provided it is already bound to some command or other.
|
|
Optional second argument MAP specifies keymap to add binding to, defaulting
|
|
to global keymap."
|
|
(let ((p2 (list 'scroll-up 'scroll-down
|
|
'beginning-of-buffer 'end-of-buffer)))
|
|
(or map (setq map global-map))
|
|
(while keylist
|
|
(let* ((key (car keylist))
|
|
(binding (key-binding key)))
|
|
(if (commandp binding)
|
|
(define-key
|
|
map
|
|
(vector (intern (concat "S-" (symbol-name (aref key 0)))))
|
|
(cond ((memq binding p2)
|
|
's-region-move-p2)
|
|
(t 's-region-move-p1)))))
|
|
(setq keylist (cdr keylist)))))
|
|
|
|
;; Single keys (plus modifiers) only!
|
|
(s-region-bind
|
|
(list [right] [left] [up] [down]
|
|
[C-left] [C-right] [C-up] [C-down]
|
|
[M-left] [M-right] [M-up] [M-down]
|
|
[next] [previous] [home] [end]
|
|
[C-next] [C-previous] [C-home] [C-end]
|
|
[M-next] [M-previous] [M-home] [M-end]))
|
|
|
|
(or (global-key-binding [C-insert])
|
|
(global-set-key [C-insert] 'copy-region-as-kill))
|
|
(or (global-key-binding [S-delete])
|
|
(global-set-key [S-delete] 'kill-region))
|
|
(or (global-key-binding [S-insert])
|
|
(global-set-key [S-insert] 'yank))
|
|
|
|
(provide 's-region)
|
|
|
|
;;; arch-tag: a471e912-18d7-4247-a29b-2100bca180ff
|
|
;;; s-region.el ends here
|