1;;; autoarg.el --- make digit keys supply prefix args 2 3;; Copyright (C) 1998, 2000, 2001, 2002, 2003, 2004, 4;; 2005, 2006, 2007 Free Software Foundation, Inc. 5 6;; Author: Dave Love <fx@gnu.org> 7;; Created: 1998-09-04 8;; Keywords: abbrev, emulations 9 10;; This file is part of GNU Emacs. 11 12;; GNU Emacs is free software; you can redistribute it and/or modify 13;; it under the terms of the GNU General Public License as published by 14;; the Free Software Foundation; either version 2, or (at your option) 15;; any later version. 16 17;; GNU Emacs is distributed in the hope that it will be useful, 18;; but WITHOUT ANY WARRANTY; without even the implied warranty of 19;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20;; GNU General Public License for more details. 21 22;; You should have received a copy of the GNU General Public License 23;; along with GNU Emacs; see the file COPYING. If not, write to the 24;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 25;; Boston, MA 02110-1301, USA. 26 27;;; Commentary: 28 29;; This provides `autoarg-mode', a global minor mode meant to emulate 30;; a facility reported from Twenex Emacs whereby digit keys supplied 31;; prefix args rather than self inserting, with a digit sequence 32;; terminated by space acting to insert the digits. 33 34;; The bindings of DIGIT and C-DIGIT are swapped and a command bound 35;; to SPC deals with a numeric prefix arg or acts normally without 36;; such an arg. (In the absence of a suitable terminal, you'd 37;; probably want to swap DIGIT and M-DIGIT.) See the mode doc. 38 39;; You probably don't really want to use this. 40 41;; Also provides `autoarg-kp-mode' which is similar, but leaves the 42;; digit keys alone and redefines the `keypad' keys, `kp-1' &c as 43;; digit arguments. (Use `NumLock' if necessary to generate kp-N.) 44;; You're more likely to want to use this. 45 46;;; Code: 47 48(defvar autoarg-mode-map 49 (let ((map (make-sparse-keymap))) 50 ;; Loop over digit characters to set up keymap. 51 (dotimes (i 10) 52 (define-key map `[,(+ ?0 i)] 'digit-argument) 53 (define-key map `[(control ,(+ ?0 i))] 'self-insert-command)) 54 (define-key map " " 'autoarg-terminate) 55 map) 56 "Keymap for Autoarg mode.") 57 58;; Logical additions: 59;; (define-key autoarg-mode-map [?-] 'negative-argument) 60;; (define-key autoarg-mode-map [(control ?-)] 'self-insert-command) 61;; A sensible/addition? 62;; (define-key autoarg-mode-map [?\r] 'autoarg-terminate) 63 64(defvar autoarg-kp-digits 65 (let (alist) 66 (dotimes (i 10 alist) 67 (push (cons (intern (format "kp-%d" i)) i) alist)))) 68 69(defun autoarg-kp-digit-argument (arg) 70 "Part of the numeric argument for the next command, like `digit-argument'." 71 (interactive "P") 72 (let ((digit (cdr (assq last-command-char autoarg-kp-digits)))) 73 (cond ((integerp arg) 74 (setq prefix-arg (+ (* arg 10) 75 (if (< arg 0) (- digit) digit)))) 76 ((eq arg '-) 77 ;; Treat -0 as just -, so that -01 will work. 78 (setq prefix-arg (if (zerop digit) '- (- digit)))) 79 (t 80 (setq prefix-arg digit)))) 81 (setq universal-argument-num-events (length (this-command-keys))) 82 (setq overriding-terminal-local-map universal-argument-map)) 83 84(defvar autoarg-kp-mode-map 85 (let ((map (make-sparse-keymap))) 86 ;; Loop over digit characters to set up keymap. 87 (dotimes (i 10) 88 (let ((sym (intern (format "kp-%d" i)))) 89 (define-key map (vector sym) 'autoarg-kp-digit-argument))) 90 (define-key map [kp-subtract] 'negative-argument) 91 map) 92 "Keymap for Autoarg-KP mode.") 93 94;;;###autoload 95(define-minor-mode autoarg-mode 96 "Toggle Autoarg minor mode globally. 97With ARG, turn Autoarg mode on if ARG is positive, off otherwise. 98\\<autoarg-mode-map> 99In Autoarg mode digits are bound to `digit-argument' -- i.e. they 100supply prefix arguments as C-DIGIT and M-DIGIT normally do -- and 101C-DIGIT inserts DIGIT. \\[autoarg-terminate] terminates the prefix sequence 102and inserts the digits of the autoarg sequence into the buffer. 103Without a numeric prefix arg the normal binding of \\[autoarg-terminate] is 104invoked, i.e. what it would be with Autoarg mode off. 105 106For example: 107`6 9 \\[autoarg-terminate]' inserts `69' into the buffer, as does `C-6 C-9'. 108`6 9 a' inserts 69 `a's into the buffer. 109`6 9 \\[autoarg-terminate] \\[autoarg-terminate]' inserts `69' into the buffer and 110then invokes the normal binding of \\[autoarg-terminate]. 111`C-u \\[autoarg-terminate]' invokes the normal binding of \\[autoarg-terminate] four times. 112 113\\{autoarg-mode-map}" 114 nil " Aarg" autoarg-mode-map :global t :group 'keyboard) 115 116;;;###autoload 117(define-minor-mode autoarg-kp-mode 118 "Toggle Autoarg-KP minor mode globally. 119With ARG, turn Autoarg mode on if ARG is positive, off otherwise. 120\\<autoarg-kp-mode-map> 121This is similar to \\[autoarg-mode] but rebinds the keypad keys `kp-1' 122etc. to supply digit arguments. 123 124\\{autoarg-kp-mode-map}" 125 nil " Aakp" autoarg-kp-mode-map :global t :group 'keyboard 126 (if autoarg-kp-mode 127 (dotimes (i 10) 128 (let ((sym (intern (format "kp-%d" i)))) 129 (define-key universal-argument-map (vector sym) 130 'autoarg-kp-digit-argument))) 131 (dotimes (i 10) 132 (let ((sym (intern (format "kp-%d" i)))) 133 (define-key universal-argument-map (vector sym) nil))))) 134 135(defun autoarg-terminate (n) 136 "Maybe terminate a digit prefix sequence. 137With a non-negative numeric prefix arg, insert the digits comprising 138the arg into the current buffer. Otherwise use the binding of the key 139which invoked this function, excluding the Autoarg keymap." 140 (interactive "P") 141 (if (numberp n) 142 (insert (number-to-string n)) 143 (let* ((autoarg-mode nil) ; hide the bindings 144 (binding (key-binding (this-single-command-keys)))) 145 (if binding (call-interactively binding))))) 146 147(provide 'autoarg) 148 149;;; arch-tag: 2ba2ab4f-d60e-402a-ae4d-37e29af723c2 150;;; autoarg.el ends here 151