abbrev.el 10.8 KB
Newer Older
Eric S. Raymond's avatar
Eric S. Raymond committed
1
;;; abbrev.el --- abbrev mode commands for Emacs
Jim Blandy's avatar
Jim Blandy committed
2

Eric S. Raymond's avatar
Eric S. Raymond committed
3
;; Copyright (C) 1985, 1986, 1987, 1992 Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
4

Dan Nicolaescu's avatar
Dan Nicolaescu committed
5
;; Keywords: abbrev convenience
Eric S. Raymond's avatar
Eric S. Raymond committed
6

Jim Blandy's avatar
Jim Blandy committed
7 8 9 10
;; 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
Eric S. Raymond's avatar
Eric S. Raymond committed
11
;; the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
12 13 14 15 16 17 18 19
;; 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
Erik Naggum's avatar
Erik Naggum committed
20 21 22
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
Jim Blandy's avatar
Jim Blandy committed
23

24 25 26 27
;;; Commentary:

;; This facility is documented in the Emacs Manual.

Eric S. Raymond's avatar
Eric S. Raymond committed
28
;;; Code:
Jim Blandy's avatar
Jim Blandy committed
29

Richard M. Stallman's avatar
Richard M. Stallman committed
30 31 32 33 34
(defcustom only-global-abbrevs nil 
  "*t means user plans to use global abbrevs only.
This makes the commands that normally define mode-specific abbrevs
define global abbrevs instead."
  :type 'boolean
Dan Nicolaescu's avatar
Dan Nicolaescu committed
35 36
  :group 'abbrev-mode
  :group 'convenience)
Jim Blandy's avatar
Jim Blandy committed
37

38
(defun abbrev-mode (&optional arg)
Jim Blandy's avatar
Jim Blandy committed
39
  "Toggle abbrev mode.
Richard M. Stallman's avatar
Richard M. Stallman committed
40
With argument ARG, turn abbrev mode on iff ARG is positive.
Jim Blandy's avatar
Jim Blandy committed
41 42 43 44 45 46
In abbrev mode, inserting an abbreviation causes it to expand
and be replaced by its expansion."
  (interactive "P")
  (setq abbrev-mode
	(if (null arg) (not abbrev-mode)
	  (> (prefix-numeric-value arg) 0)))
47
  (force-mode-line-update))
Richard M. Stallman's avatar
Richard M. Stallman committed
48 49 50

(defcustom abbrev-mode nil
  "Toggle abbrev mode.
51 52 53 54 55 56
Non-nil means automatically expand abbrevs as they are inserted.

This variable automatically becomes buffer-local when set in any fashion.
Changing it with \\[customize] sets the default value.
Use the command `abbrev-mode' to enable or disable Abbrev mode in the current
buffer."
Richard M. Stallman's avatar
Richard M. Stallman committed
57 58 59
  :type 'boolean
  :group 'abbrev-mode)

Jim Blandy's avatar
Jim Blandy committed
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148

(defvar edit-abbrevs-map nil
  "Keymap used in edit-abbrevs.")
(if edit-abbrevs-map
    nil
  (setq edit-abbrevs-map (make-sparse-keymap))
  (define-key edit-abbrevs-map "\C-x\C-s" 'edit-abbrevs-redefine)
  (define-key edit-abbrevs-map "\C-c\C-c" 'edit-abbrevs-redefine))

(defun kill-all-abbrevs ()
  "Undefine all defined abbrevs."
  (interactive)
  (let ((tables abbrev-table-name-list))
    (while tables
      (clear-abbrev-table (symbol-value (car tables)))
      (setq tables (cdr tables)))))

(defun insert-abbrevs ()
  "Insert after point a description of all defined abbrevs.
Mark is set after the inserted text."
  (interactive)
  (push-mark
   (save-excursion
    (let ((tables abbrev-table-name-list))
      (while tables
	(insert-abbrev-table-description (car tables) t)
	(setq tables (cdr tables))))
    (point))))

(defun list-abbrevs ()
  "Display a list of all defined abbrevs."
  (interactive)
  (display-buffer (prepare-abbrev-list-buffer)))

(defun prepare-abbrev-list-buffer ()
  (save-excursion
    (set-buffer (get-buffer-create "*Abbrevs*"))
    (erase-buffer)
    (let ((tables abbrev-table-name-list))
      (while tables
	(insert-abbrev-table-description (car tables) t)
	(setq tables (cdr tables))))
    (goto-char (point-min))
    (set-buffer-modified-p nil)
    (edit-abbrevs-mode))
  (get-buffer-create "*Abbrevs*"))

(defun edit-abbrevs-mode ()
  "Major mode for editing the list of abbrev definitions.
\\{edit-abbrevs-map}"
  (interactive)
  (setq major-mode 'edit-abbrevs-mode)
  (setq mode-name "Edit-Abbrevs")
  (use-local-map edit-abbrevs-map))

(defun edit-abbrevs ()
  "Alter abbrev definitions by editing a list of them.
Selects a buffer containing a list of abbrev definitions.
You can edit them and type \\<edit-abbrevs-map>\\[edit-abbrevs-redefine] to redefine abbrevs
according to your editing.
Buffer contains a header line for each abbrev table,
 which is the abbrev table name in parentheses.
This is followed by one line per abbrev in that table:
NAME   USECOUNT   EXPANSION   HOOK
where NAME and EXPANSION are strings with quotes,
USECOUNT is an integer, and HOOK is any valid function
or may be omitted (it is usually omitted)."
  (interactive)
  (switch-to-buffer (prepare-abbrev-list-buffer)))

(defun edit-abbrevs-redefine ()
  "Redefine abbrevs according to current buffer contents."
  (interactive)
  (define-abbrevs t)
  (set-buffer-modified-p nil))

(defun define-abbrevs (&optional arg)
  "Define abbrevs according to current visible buffer contents.
See documentation of `edit-abbrevs' for info on the format of the
text you must have in the buffer.
With argument, eliminate all abbrev definitions except
the ones defined from the buffer now."
  (interactive "P")
  (if arg (kill-all-abbrevs))
  (save-excursion
   (goto-char (point-min))
   (while (and (not (eobp)) (re-search-forward "^(" nil t))
     (let* ((buf (current-buffer))
	    (table (read buf))
149
	    abbrevs name hook exp count)
Jim Blandy's avatar
Jim Blandy committed
150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178
       (forward-line 1)
       (while (progn (forward-line 1)
		     (not (eolp)))
	 (setq name (read buf) count (read buf) exp (read buf))
	 (skip-chars-backward " \t\n\f")
	 (setq hook (if (not (eolp)) (read buf)))
	 (skip-chars-backward " \t\n\f")
	 (setq abbrevs (cons (list name exp hook count) abbrevs)))
       (define-abbrev-table table abbrevs)))))

(defun read-abbrev-file (&optional file quietly)
  "Read abbrev definitions from file written with `write-abbrev-file'.
Optional argument FILE is the name of the file to read;
it defaults to the value of `abbrev-file-name'.
Optional second argument QUIETLY non-nil means don't print anything."
  (interactive "fRead abbrev file: ")
  (load (if (and file (> (length file) 0)) file abbrev-file-name)
	nil quietly)
  (setq save-abbrevs t abbrevs-changed nil))

(defun quietly-read-abbrev-file (&optional file)
  "Read abbrev definitions from file written with write-abbrev-file.
Optional argument FILE is the name of the file to read;
it defaults to the value of `abbrev-file-name'.
Does not print anything."
  ;(interactive "fRead abbrev file: ")
  (read-abbrev-file file t))

(defun write-abbrev-file (file)
Eric S. Raymond's avatar
Eric S. Raymond committed
179
  "Write all abbrev definitions to a file of Lisp code.
Jim Blandy's avatar
Jim Blandy committed
180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227
The file written can be loaded in another session to define the same abbrevs.
The argument FILE is the file name to write."
  (interactive
   (list
    (read-file-name "Write abbrev file: "
		    (file-name-directory (expand-file-name abbrev-file-name))
		    abbrev-file-name)))
  (or (and file (> (length file) 0))
      (setq file abbrev-file-name))
  (save-excursion
   (set-buffer (get-buffer-create " write-abbrev-file"))
   (erase-buffer)
   (let ((tables abbrev-table-name-list))
     (while tables
       (insert-abbrev-table-description (car tables) nil)
       (setq tables (cdr tables))))
   (write-region 1 (point-max) file)
   (erase-buffer)))

(defun add-mode-abbrev (arg)
  "Define mode-specific abbrev for last word(s) before point.
Argument is how many words before point form the expansion;
or zero means the region is the expansion.
A negative argument means to undefine the specified abbrev.
Reads the abbreviation in the minibuffer.

Don't use this function in a Lisp program; use `define-abbrev' instead."
  (interactive "p")
  (add-abbrev
   (if only-global-abbrevs
       global-abbrev-table 
     (or local-abbrev-table
	 (error "No per-mode abbrev table")))
   "Mode" arg))

(defun add-global-abbrev (arg)
  "Define global (all modes) abbrev for last word(s) before point.
The prefix argument specifies the number of words before point that form the
expansion; or zero means the region is the expansion.
A negative argument means to undefine the specified abbrev.
This command uses the minibuffer to read the abbreviation.

Don't use this function in a Lisp program; use `define-abbrev' instead."
  (interactive "p")
  (add-abbrev global-abbrev-table "Global" arg))

(defun add-abbrev (table type arg)
  (let ((exp (and (>= arg 0)
228
		  (buffer-substring-no-properties
Jim Blandy's avatar
Jim Blandy committed
229 230 231 232 233 234 235 236
		   (point)
		   (if (= arg 0) (mark)
		     (save-excursion (forward-word (- arg)) (point))))))
	name)
    (setq name
	  (read-string (format (if exp "%s abbrev for \"%s\": "
				 "Undefine %s abbrev: ")
			       type exp)))
237
    (set-text-properties 0 (length name) nil name)
Jim Blandy's avatar
Jim Blandy committed
238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265
    (if (or (null exp)
	    (not (abbrev-expansion name table))
	    (y-or-n-p (format "%s expands to \"%s\"; redefine? "
			      name (abbrev-expansion name table))))
	(define-abbrev table (downcase name) exp))))
	
(defun inverse-add-mode-abbrev (arg)
  "Define last word before point as a mode-specific abbrev.
With prefix argument N, defines the Nth word before point.
This command uses the minibuffer to read the expansion.
Expands the abbreviation after defining it."
  (interactive "p")
  (inverse-add-abbrev
   (if only-global-abbrevs
       global-abbrev-table 
     (or local-abbrev-table
	 (error "No per-mode abbrev table")))
   "Mode" arg))

(defun inverse-add-global-abbrev (arg)
  "Define last word before point as a global (mode-independent) abbrev.
With prefix argument N, defines the Nth word before point.
This command uses the minibuffer to read the expansion.
Expands the abbreviation after defining it."
  (interactive "p")
  (inverse-add-abbrev global-abbrev-table "Global" arg))

(defun inverse-add-abbrev (table type arg)
266
  (let (name exp start end)
Jim Blandy's avatar
Jim Blandy committed
267
    (save-excursion
268 269 270 271 272 273 274 275 276 277 278 279 280 281 282
      (forward-word (1+ (- arg)))
      (setq end (point))
      (backward-word 1)
      (setq start (point)
	    name (buffer-substring-no-properties start end)))

    (setq exp (read-string (format "%s expansion for \"%s\": " type name)
			   nil nil nil t))
    (when (or (not (abbrev-expansion name table))
	      (y-or-n-p (format "%s expands to \"%s\"; redefine? "
				name (abbrev-expansion name table))))
      (define-abbrev table (downcase name) exp)
      (save-excursion
	(goto-char end)
	(expand-abbrev)))))
Jim Blandy's avatar
Jim Blandy committed
283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309

(defun abbrev-prefix-mark (&optional arg)
  "Mark current point as the beginning of an abbrev.
Abbrev to be expanded starts here rather than at beginning of word.
This way, you can expand an abbrev with a prefix: insert the prefix,
use this command, then insert the abbrev."
  (interactive "P")
  (or arg (expand-abbrev))
  (setq abbrev-start-location (point-marker)
	abbrev-start-location-buffer (current-buffer))
  (insert "-"))

(defun expand-region-abbrevs (start end &optional noquery)
  "For abbrev occurrence in the region, offer to expand it.
The user is asked to type y or n for each occurrence.
A prefix argument means don't query; expand all abbrevs.
If called from a Lisp program, arguments are START END &optional NOQUERY."
  (interactive "r\nP")
  (save-excursion
    (goto-char start)
    (let ((lim (- (point-max) end))
	  pnt string)
      (while (and (not (eobp))
		  (progn (forward-word 1)
			 (<= (setq pnt (point)) (- (point-max) lim))))
	(if (abbrev-expansion
	     (setq string
310
		   (buffer-substring-no-properties
Jim Blandy's avatar
Jim Blandy committed
311 312 313 314
		    (save-excursion (forward-word -1) (point))
		    pnt)))
	    (if (or noquery (y-or-n-p (format "Expand `%s'? " string)))
		(expand-abbrev)))))))
Eric S. Raymond's avatar
Eric S. Raymond committed
315 316

;;; abbrev.el ends here