view lisp/misc.el @ 5745:f9e4d44504a4

Document #'events-to-keys some more, use it less. lisp/ChangeLog addition: 2013-07-10 Aidan Kehoe <kehoea@parhasard.net> * minibuf.el (get-user-response): * cmdloop.el (y-or-n-p-minibuf): No need to call #'events-to-keys in these two functions, #'lookup-key accepts events directly. * keymap.el: * keymap.el (events-to-keys): Document this function some more. Stop passing strings through unexamined, treat them as vectors of characters. Event keys are never integers, remove some code that only ran if (integerp (event-key ce)). Event keys are never numbers, don't check for that. Don't create (menu-selection call-interactively function-name) keystrokes for menu choices, #'character-to-event doesn't understand that syntax, so nothing uses it. Don't ever accept mouse events, #'character-to-event doesn't accept our synthesising of them. src/ChangeLog addition: 2013-07-10 Aidan Kehoe <kehoea@parhasard.net> * keymap.c: * keymap.c (key_desc_list_to_event): Drop the allow_menu_events argument. Don't accept lists starting with Qmenu_selection as describing keys, nothing generates them in a way this function understands. The intention is reasonable but the implementation was never documented and never finished. * keymap.c (syms_of_keymap): Drop Qmenu_selection. * events.c (Fcharacter_to_event): * keymap.h: Drop the allow_menu_events argument to key_desc_list_to_event.
author Aidan Kehoe <kehoea@parhasard.net>
date Wed, 10 Jul 2013 14:14:30 +0100
parents 308d34e9f07d
children
line wrap: on
line source

;;; misc.el --- miscellaneous functions for XEmacs

;; Copyright (C) 1989, 1997 Free Software Foundation, Inc.

;; Maintainer: FSF
;; Keywords: extensions, dumped

;; This file is part of XEmacs.

;; XEmacs 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.

;; XEmacs 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 XEmacs.  If not, see <http://www.gnu.org/licenses/>.

;;; Synched up with: FSF 19.34.

;;; Commentary:

;; This file is dumped with XEmacs.

;; 06/11/1997 - Use char-(after|before) instead of
;;  (following|preceding)-char. -slb

;;; Code:

(defun copy-from-above-command (&optional arg)
  "Copy characters from previous nonblank line, starting just above point.
Copy ARG characters, but not past the end of that line.
If no argument given, copy the entire rest of the line.
The characters copied are inserted in the buffer before point."
  (interactive "P")
  (let ((cc (current-column))
	n
	(string ""))
    (save-excursion
      (beginning-of-line)
      (backward-char 1)
      (skip-chars-backward "\ \t\n")
      (move-to-column cc)
      ;; Default is enough to copy the whole rest of the line.
      (setq n (if arg (prefix-numeric-value arg) (point-max)))
      ;; If current column winds up in middle of a tab,
      ;; copy appropriate number of "virtual" space chars.
      (if (< cc (current-column))
	  (if (eq (char-before (point)) ?\t)
	      (progn
		(setq string (make-string (min n (- (current-column) cc)) ?\ ))
		(setq n (- n (min n (- (current-column) cc)))))
	    ;; In middle of ctl char => copy that whole char.
	    (backward-char 1)))
      (setq string (concat string
			   (buffer-substring
			    (point)
			    (min (save-excursion (end-of-line) (point))
				 (+ n (point)))))))
    (insert string)))

;;; misc.el ends here