Mercurial > hg > xemacs-beta

comparison lisp/x-compose.el @ 428:3ecd8885ac67 r21-2-22

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Import from CVS: tag r21-2-22
author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
parents
children a25c824ed558
comparison
equal deleted inserted replaced
427:0a0253eac470 428:3ecd8885ac67
1 ;;; x-compose.el --- Compose-key processing in XEmacs
2
3 ;; Copyright (C) 1992, 1993, 1997 Free Software Foundation, Inc.
4
5 ;; Author: Jamie Zawinski <jwz@jwz.org>
6 ;; Maintainer: XEmacs Development Team
7 ;; Rewritten by Martin Buchholz far too many times.
8 ;;
9 ;; Changed: 11 Jun 1997 by Heiko Muenkel <muenkel@tnt.uni-hannover.de>
10 ;; The degree sign couldn't be inserted with the old version.
11 ;; Keywords: i18n
12
13 ;; This file is part of XEmacs.
14
15 ;; XEmacs is free software; you can redistribute it and/or modify it
16 ;; under the terms of the GNU General Public License as published by
17 ;; the Free Software Foundation; either version 2, or (at your option)
18 ;; any later version.
19
20 ;; XEmacs is distributed in the hope that it will be useful, but
21 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 ;; General Public License for more details.
24
25 ;; You should have received a copy of the GNU General Public License
26 ;; along with XEmacs; see the file COPYING. If not, write to the
27 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
28 ;; Boston, MA 02111-1307, USA.
29
30 ;;; Synched up with: Not in FSF.
31
32 ;;; Commentary:
33
34 ;; created by jwz, 14-jun-92.
35 ;;; changed by Jan Vroonhof, July 1997: Use function-key-map instead
36 ;;; of global map.
37 ;;; Preliminary support for
38 ;;; XFree86 deadkeys
39
40 ;; This file implements DEC-, OpenWindows-, and HP-compatible "Compose"
41 ;; processing for XEmacs.
42
43 ;; If you are running a version of X which already does compose processing,
44 ;; then you don't need this file. But the MIT R4 and R5 distributions don't
45 ;; do compose processing, so you may want to fake it by using this code.
46
47 ;; The basic idea is that there are several ways to generate keysyms which
48 ;; do not have keys devoted to them on your keyboard.
49
50 ;; The first method is by using "dead" keys. A dead key is a key which,
51 ;; when typed, does not insert a character. Instead it modifies the
52 ;; following character typed. So if you typed "dead-tilde" followed by "A",
53 ;; then "A-tilde" would be inserted. Of course, this requires you to modify
54 ;; your keyboard to include a "dead-tilde" key on it somewhere.
55
56 ;; The second method is by using a "Compose" key. With a Compose key, you
57 ;; would type "Compose" then "tilde" then "A" to insert "A-tilde".
58
59 ;; There are a small number of dead keys: acute, grave, cedilla, diaeresis,
60 ;; circumflex, tilde, and ring. There are a larger number of accented and
61 ;; other characters accessible via the Compose key, so both are useful.
62
63 ;; To use this code, you will need to have a Compose key on your keyboard.
64 ;; The default configuration of most X keyboards doesn't contain one. You
65 ;; can, for example, turn the right "Meta" key into a "Compose" key with
66 ;; this command:
67
68 ;; xmodmap -e "remove mod1 = Meta_R" -e "keysym Meta_R = Multi_key"
69
70 ;; Multi-key is the name that X (and emacs) know the "Compose" key by.
71 ;; The "remove..." command is necessary because the "Compose" key must not
72 ;; have any modifier bits associated with it. This exact command may not
73 ;; work, depending on what system and keyboard you are using. If it
74 ;; doesn't, you'll have to read the man page for xmodmap. You might want
75 ;; to get the "xkeycaps" program from
76 ;; <URL:http://www.jwz.org/xkeycaps/>,
77 ;; which is a graphical front end to xmodmap
78 ;; that hides xmodmap's arcane syntax from you.
79
80 ;; If for some reason you don't want to have a dedicated compose key on your
81 ;; keyboard, you can use some other key as the prefix. For example, to make
82 ;; "Meta-Shift-C" act as a compose key (so that "M-C , c" would insert the
83 ;; character "ccedilla") you could do
84
85 ;; (global-set-key "\M-C" compose-map)
86
87 ;; I believe the bindings encoded in this file are the same as those used
88 ;; by OpenWindows versions 2 and 3, and DEC VT320 terminals. Please let me
89 ;; know if you think otherwise.
90
91 ;; Much thanks to Justin Bur <justin@crim.ca> for helping me understand how
92 ;; this stuff is supposed to work.
93
94 ;; You also might want to consider getting Justin's patch for the MIT Xlib
95 ;; that implements compose processing in the library. This will enable
96 ;; compose processing in applications other than emacs as well. You can
97 ;; get it from export.lcs.mit.edu in contrib/compose.tar.Z.
98
99 ;; This code has one feature that a more "builtin" Compose mechanism could
100 ;; not have: at any point you can type C-h to get a list of the possible
101 ;; completions of what you have typed so far.
102
103 ;;; Code:
104
105 (require 'x-iso8859-1)
106
107 (macrolet
108 ((define-compose-map (keymap-symbol)
109 `(progn
110 (defconst ,keymap-symbol (make-sparse-keymap ',keymap-symbol))
111 ;; Required to tell XEmacs the keymaps were actually autoloaded.
112 ;; #### Make this unnecessary!
113 (fset ',keymap-symbol ,keymap-symbol))))
114
115 (define-compose-map compose-map)
116 (define-compose-map compose-acute-map)
117 (define-compose-map compose-grave-map)
118 (define-compose-map compose-cedilla-map)
119 (define-compose-map compose-diaeresis-map)
120 (define-compose-map compose-circumflex-map)
121 (define-compose-map compose-tilde-map)
122 (define-compose-map compose-ring-map))
123
124 (define-key compose-map 'acute compose-acute-map)
125 (define-key compose-map 'grave compose-grave-map)
126 (define-key compose-map 'cedilla compose-cedilla-map)
127 (define-key compose-map 'diaeresis compose-diaeresis-map)
128 (define-key compose-map 'circumflex compose-circumflex-map)
129 (define-key compose-map 'tilde compose-tilde-map)
130 (define-key compose-map 'degree compose-ring-map)
131
132 ;;(define-key function-key-map [multi-key] compose-map)
133
134 ;; The following is necessary, because one can't rebind [degree]
135 ;; and use it to insert the degree sign!
136 ;;(defun compose-insert-degree ()
137 ;; "Inserts a degree sign."
138 ;; (interactive)
139 ;; (insert ?\260))
140
141 (define-key compose-map [acute] compose-acute-map)
142 (define-key compose-map [?'] compose-acute-map)
143 (define-key compose-map [grave] compose-grave-map)
144 (define-key compose-map [?`] compose-grave-map)
145 (define-key compose-map [cedilla] compose-cedilla-map)
146 (define-key compose-map [?,] compose-cedilla-map)
147 (define-key compose-map [diaeresis] compose-diaeresis-map)
148 (define-key compose-map [?\"] compose-diaeresis-map)
149 (define-key compose-map [circumflex] compose-circumflex-map)
150 (define-key compose-map [?^] compose-circumflex-map)
151 (define-key compose-map [tilde] compose-tilde-map)
152 (define-key compose-map [~] compose-tilde-map)
153 (define-key compose-map [degree] compose-ring-map)
154 (define-key compose-map [?*] compose-ring-map)
155
156
157 ;;; The contents of the "dead key" maps. These are shared by the
158 ;;; compose-map.
159
160 (define-key compose-acute-map [space] "'")
161 (define-key compose-acute-map [?'] [acute])
162 (define-key compose-acute-map [?A] [Aacute])
163 (define-key compose-acute-map [E] [Eacute])
164 (define-key compose-acute-map [I] [Iacute])
165 (define-key compose-acute-map [O] [Oacute])
166 (define-key compose-acute-map [U] [Uacute])
167 (define-key compose-acute-map [Y] [Yacute])
168 (define-key compose-acute-map [a] [aacute])
169 (define-key compose-acute-map [e] [eacute])
170 (define-key compose-acute-map [i] [iacute])
171 (define-key compose-acute-map [o] [oacute])
172 (define-key compose-acute-map [u] [uacute])
173 (define-key compose-acute-map [y] [yacute])
174
175 (define-key compose-grave-map [space] "`")
176 (define-key compose-grave-map [?`] [grave])
177 (define-key compose-grave-map [A] [Agrave])
178 (define-key compose-grave-map [E] [Egrave])
179 (define-key compose-grave-map [I] [Igrave])
180 (define-key compose-grave-map [O] [Ograve])
181 (define-key compose-grave-map [U] [Ugrave])
182 (define-key compose-grave-map [a] [agrave])
183 (define-key compose-grave-map [e] [egrave])
184 (define-key compose-grave-map [i] [igrave])
185 (define-key compose-grave-map [o] [ograve])
186 (define-key compose-grave-map [u] [ugrave])
187
188 (define-key compose-cedilla-map [space] ",")
189 (define-key compose-cedilla-map [?,] [cedilla])
190 (define-key compose-cedilla-map [C] [Ccedilla])
191 (define-key compose-cedilla-map [c] [ccedilla])
192
193 (define-key compose-diaeresis-map [space] [diaeresis])
194 (define-key compose-diaeresis-map [?\"] [diaeresis])
195 (define-key compose-diaeresis-map [A] [Adiaeresis])
196 (define-key compose-diaeresis-map [E] [Ediaeresis])
197 (define-key compose-diaeresis-map [I] [Idiaeresis])
198 (define-key compose-diaeresis-map [O] [Odiaeresis])
199 (define-key compose-diaeresis-map [U] [Udiaeresis])
200 (define-key compose-diaeresis-map [a] [adiaeresis])
201 (define-key compose-diaeresis-map [e] [ediaeresis])
202 (define-key compose-diaeresis-map [i] [idiaeresis])
203 (define-key compose-diaeresis-map [o] [odiaeresis])
204 (define-key compose-diaeresis-map [u] [udiaeresis])
205 (define-key compose-diaeresis-map [y] [ydiaeresis])
206
207 (define-key compose-circumflex-map [space] "^")
208 (define-key compose-circumflex-map [?/] "|")
209 (define-key compose-circumflex-map [?!] [brokenbar])
210 (define-key compose-circumflex-map [?-] [macron])
211 (define-key compose-circumflex-map [?_] [macron])
212 (define-key compose-circumflex-map [?0] [degree])
213 (define-key compose-circumflex-map [?1] [onesuperior])
214 (define-key compose-circumflex-map [?2] [twosuperior])
215 (define-key compose-circumflex-map [?3] [threesuperior])
216 (define-key compose-circumflex-map [?.] [periodcentered])
217 (define-key compose-circumflex-map [A] [Acircumflex])
218 (define-key compose-circumflex-map [E] [Ecircumflex])
219 (define-key compose-circumflex-map [I] [Icircumflex])
220 (define-key compose-circumflex-map [O] [Ocircumflex])
221 (define-key compose-circumflex-map [U] [Ucircumflex])
222 (define-key compose-circumflex-map [a] [acircumflex])
223 (define-key compose-circumflex-map [e] [ecircumflex])
224 (define-key compose-circumflex-map [i] [icircumflex])
225 (define-key compose-circumflex-map [o] [ocircumflex])
226 (define-key compose-circumflex-map [u] [ucircumflex])
227
228 (define-key compose-tilde-map [space] "~")
229 (define-key compose-tilde-map [A] [Atilde])
230 (define-key compose-tilde-map [N] [Ntilde])
231 (define-key compose-tilde-map [O] [Otilde])
232 (define-key compose-tilde-map [a] [atilde])
233 (define-key compose-tilde-map [n] [ntilde])
234 (define-key compose-tilde-map [o] [otilde])
235
236 (define-key compose-ring-map [space] [degree])
237 (define-key compose-ring-map [A] [Aring])
238 (define-key compose-ring-map [a] [aring])
239
240
241 ;;; The rest of the compose-map. These are the composed characters
242 ;;; that are not accessible via "dead" keys.
243
244 (define-key compose-map " '" "'")
245 (define-key compose-map " ^" "^")
246 (define-key compose-map " `" "`")
247 (define-key compose-map " ~" "~")
248 (define-key compose-map " " [nobreakspace])
249 (define-key compose-map " \"" [diaeresis])
250 (define-key compose-map " :" [diaeresis])
251 (define-key compose-map " *" [degree])
252
253 (define-key compose-map "!!" [exclamdown])
254 (define-key compose-map "!^" [brokenbar])
255 (define-key compose-map "!S" [section])
256 (define-key compose-map "!s" [section])
257 (define-key compose-map "!P" [paragraph])
258 (define-key compose-map "!p" [paragraph])
259
260 (define-key compose-map "((" "[")
261 (define-key compose-map "(-" "{")
262
263 (define-key compose-map "))" "]")
264 (define-key compose-map ")-" "}")
265
266 (define-key compose-map "++" "#")
267 (define-key compose-map "+-" [plusminus])
268
269 (define-key compose-map "-(" "{")
270 (define-key compose-map "-)" "}")
271 (define-key compose-map "--" "-")
272 (define-key compose-map "-L" [sterling])
273 (define-key compose-map "-l" [sterling])
274 (define-key compose-map "-Y" [yen])
275 (define-key compose-map "-y" [yen])
276 (define-key compose-map "-," [notsign])
277 (define-key compose-map "-|" [notsign])
278 (define-key compose-map "-^" [macron])
279 (define-key compose-map "-+" [plusminus])
280 (define-key compose-map "-:" [division])
281 (define-key compose-map "-D" [ETH])
282 (define-key compose-map "-d" [eth])
283 (define-key compose-map "-a" [ordfeminine])
284
285 (define-key compose-map ".^" [periodcentered])
286
287 (define-key compose-map "//" "\\")
288 (define-key compose-map "/<" "\\")
289 (define-key compose-map "/^" "|")
290 (define-key compose-map "/C" [cent])
291 (define-key compose-map "/c" [cent])
292 (define-key compose-map "/U" [mu])
293 (define-key compose-map "/u" [mu])
294 (define-key compose-map "/O" [Ooblique])
295 (define-key compose-map "/o" [oslash])
296
297 (define-key compose-map "0X" [currency])
298 (define-key compose-map "0x" [currency])
299 (define-key compose-map "0S" [section])
300 (define-key compose-map "0s" [section])
301 (define-key compose-map "0C" [copyright])
302 (define-key compose-map "0c" [copyright])
303 (define-key compose-map "0R" [registered])
304 (define-key compose-map "0r" [registered])
305 (define-key compose-map "0^" [degree])
306
307 (define-key compose-map "1^" [onesuperior])
308 (define-key compose-map "14" [onequarter])
309 (define-key compose-map "12" [onehalf])
310
311 (define-key compose-map "2^" [twosuperior])
312
313 (define-key compose-map "3^" [threesuperior])
314 (define-key compose-map "34" [threequarters])
315
316 (define-key compose-map ":-" [division])
317
318 (define-key compose-map "</" "\\")
319 (define-key compose-map "<<" [guillemotleft])
320
321 (define-key compose-map "=L" [sterling])
322 (define-key compose-map "=l" [sterling])
323 (define-key compose-map "=Y" [yen])
324 (define-key compose-map "=y" [yen])
325
326 (define-key compose-map ">>" [guillemotright])
327
328 (define-key compose-map "??" [questiondown])
329
330 (define-key compose-map "AA" "@")
331 (define-key compose-map "Aa" "@")
332 (define-key compose-map "A_" [ordfeminine])
333 (define-key compose-map "A`" [Agrave])
334 (define-key compose-map "A'" [Aacute])
335 (define-key compose-map "A^" [Acircumflex])
336 (define-key compose-map "A~" [Atilde])
337 (define-key compose-map "A\"" [Adiaeresis])
338 (define-key compose-map "A*" [Aring])
339 (define-key compose-map "AE" [AE])
340
341 (define-key compose-map "C/" [cent])
342 (define-key compose-map "C|" [cent])
343 (define-key compose-map "C0" [copyright])
344 (define-key compose-map "CO" [copyright])
345 (define-key compose-map "Co" [copyright])
346 (define-key compose-map "C," [Ccedilla])
347
348 (define-key compose-map "D-" [ETH])
349
350 (define-key compose-map "E`" [Egrave])
351 (define-key compose-map "E'" [Eacute])
352 (define-key compose-map "E^" [Ecircumflex])
353 (define-key compose-map "E\"" [Ediaeresis])
354
355 (define-key compose-map "I`" [Igrave])
356 (define-key compose-map "I'" [Iacute])
357 (define-key compose-map "I^" [Icircumflex])
358 (define-key compose-map "I\"" [Idiaeresis])
359
360 (define-key compose-map "L-" [sterling])
361 (define-key compose-map "L=" [sterling])
362
363 (define-key compose-map "N~" [Ntilde])
364
365 (define-key compose-map "OX" [currency])
366 (define-key compose-map "Ox" [currency])
367 (define-key compose-map "OS" [section])
368 (define-key compose-map "Os" [section])
369 (define-key compose-map "OC" [copyright])
370 (define-key compose-map "Oc" [copyright])
371 (define-key compose-map "OR" [registered])
372 (define-key compose-map "Or" [registered])
373 (define-key compose-map "O_" [masculine])
374 (define-key compose-map "O`" [Ograve])
375 (define-key compose-map "O'" [Oacute])
376 (define-key compose-map "O^" [Ocircumflex])
377 (define-key compose-map "O~" [Otilde])
378 (define-key compose-map "O\"" [Odiaeresis])
379 (define-key compose-map "O/" [Ooblique])
380
381 (define-key compose-map "P!" [paragraph])
382
383 (define-key compose-map "R0" [registered])
384 (define-key compose-map "RO" [registered])
385 (define-key compose-map "Ro" [registered])
386
387 (define-key compose-map "S!" [section])
388 (define-key compose-map "S0" [section])
389 (define-key compose-map "SO" [section])
390 (define-key compose-map "So" [section])
391 (define-key compose-map "SS" [ssharp])
392
393 (define-key compose-map "TH" [THORN])
394
395 (define-key compose-map "U`" [Ugrave])
396 (define-key compose-map "U'" [Uacute])
397 (define-key compose-map "U^" [Ucircumflex])
398 (define-key compose-map "U\"" [Udiaeresis])
399
400 (define-key compose-map "X0" [currency])
401 (define-key compose-map "XO" [currency])
402 (define-key compose-map "Xo" [currency])
403
404 (define-key compose-map "Y-" [yen])
405 (define-key compose-map "Y=" [yen])
406 (define-key compose-map "Y'" [Yacute])
407
408 (define-key compose-map "_A" [ordfeminine])
409 (define-key compose-map "_a" [ordfeminine])
410 (define-key compose-map "_^" [macron])
411 (define-key compose-map "_O" [masculine])
412 (define-key compose-map "_o" [masculine])
413
414 (define-key compose-map "aA" "@")
415 (define-key compose-map "aa" "@")
416 (define-key compose-map "a_" [ordfeminine])
417 (define-key compose-map "a-" [ordfeminine])
418 (define-key compose-map "a`" [agrave])
419 (define-key compose-map "a'" [aacute])
420 (define-key compose-map "a^" [acircumflex])
421 (define-key compose-map "a~" [atilde])
422 (define-key compose-map "a\"" [adiaeresis])
423 (define-key compose-map "a*" [aring])
424 (define-key compose-map "ae" [ae])
425
426 (define-key compose-map "c/" [cent])
427 (define-key compose-map "c|" [cent])
428 (define-key compose-map "c0" [copyright])
429 (define-key compose-map "cO" [copyright])
430 (define-key compose-map "co" [copyright])
431 (define-key compose-map "c," [ccedilla])
432
433 (define-key compose-map "d-" [eth])
434
435 (define-key compose-map "e`" [egrave])
436 (define-key compose-map "e'" [eacute])
437 (define-key compose-map "e^" [ecircumflex])
438 (define-key compose-map "e\"" [ediaeresis])
439
440 (define-key compose-map "i`" [igrave])
441 (define-key compose-map "i'" [iacute])
442 (define-key compose-map "i^" [icircumflex])
443 (define-key compose-map "i\"" [idiaeresis])
444 (define-key compose-map "i:" [idiaeresis])
445
446 (define-key compose-map "l-" [sterling])
447 (define-key compose-map "l=" [sterling])
448
449 (define-key compose-map "n~" [ntilde])
450
451 (define-key compose-map "oX" [currency])
452 (define-key compose-map "ox" [currency])
453 (define-key compose-map "oC" [copyright])
454 (define-key compose-map "oc" [copyright])
455 (define-key compose-map "oR" [registered])
456 (define-key compose-map "or" [registered])
457 (define-key compose-map "oS" [section])
458 (define-key compose-map "os" [section])
459 (define-key compose-map "o_" [masculine])
460 (define-key compose-map "o`" [ograve])
461 (define-key compose-map "o'" [oacute])
462 (define-key compose-map "o^" [ocircumflex])
463 (define-key compose-map "o~" [otilde])
464 (define-key compose-map "o\"" [odiaeresis])
465 (define-key compose-map "o/" [oslash])
466
467 (define-key compose-map "p!" [paragraph])
468
469 (define-key compose-map "r0" [registered])
470 (define-key compose-map "rO" [registered])
471 (define-key compose-map "ro" [registered])
472
473 (define-key compose-map "s!" [section])
474 (define-key compose-map "s0" [section])
475 (define-key compose-map "sO" [section])
476 (define-key compose-map "so" [section])
477 (define-key compose-map "ss" [ssharp])
478
479 (define-key compose-map "th" [thorn])
480
481 (define-key compose-map "u`" [ugrave])
482 (define-key compose-map "u'" [uacute])
483 (define-key compose-map "u^" [ucircumflex])
484 (define-key compose-map "u\"" [udiaeresis])
485 (define-key compose-map "u/" [mu])
486
487 (define-key compose-map "x0" [currency])
488 (define-key compose-map "xO" [currency])
489 (define-key compose-map "xo" [currency])
490 (define-key compose-map "xx" [multiply])
491
492 (define-key compose-map "y-" [yen])
493 (define-key compose-map "y=" [yen])
494 (define-key compose-map "y'" [yacute])
495 (define-key compose-map "y\"" [ydiaeresis])
496
497 (define-key compose-map "|C" [cent])
498 (define-key compose-map "|c" [cent])
499 (define-key compose-map "||" [brokenbar])
500
501
502 ;; Suppose we type these three physical keys: [Multi_key " a]
503 ;; Xlib can deliver these keys as the following sequences of keysyms:
504 ;;
505 ;; - [Multi_key " a] (no surprise here)
506 ;; - [adiaeresis] (OK, Xlib is doing compose processing for us)
507 ;; - [Multi_key " adiaeresis] (Huh?)
508 ;;
509 ;; It is the last possibility that is arguably a bug. Xlib can't
510 ;; decide whether it's really doing compose processing or not (or
511 ;; actually, different parts of Xlib disagree).
512 ;;
513 ;; So we'll just convert [Multi_key " adiaeresis] to [adiaeresis]
514 (defun xlib-input-method-bug-workaround (keymap)
515 (map-keymap
516 (lambda (key value)
517 (cond
518 ((keymapp value)
519 (xlib-input-method-bug-workaround value))
520 ((and (sequencep value)
521 (eq 1 (length value))
522 (null (lookup-key keymap value)))
523 (define-key keymap value value))))
524 keymap))
525 (xlib-input-method-bug-workaround compose-map)
526 (unintern 'xlib-input-method-bug-workaround)
527
528 ;; While we're at it, a similar mechanism will make colon equivalent
529 ;; to doublequote for diaeresis processing. Some Xlibs do this.
530 (defun alias-colon-to-doublequote (keymap)
531 (map-keymap
532 (lambda (key value)
533 (when (keymapp value)
534 (alias-colon-to-doublequote value))
535 (when (eq key '\")
536 (define-key keymap ":" value)))
537 keymap))
538 (alias-colon-to-doublequote compose-map)
539 (unintern 'alias-colon-to-doublequote)
540
541 ;;; Electric dead keys: making a' mean a-acute.
542
543
544 (defun electric-diacritic (&optional count)
545 "Modify the previous character with an accent.
546 For example, if `:' is bound to this command, then typing `a:'
547 will first insert `a' and then turn it into `\344' (adiaeresis).
548 The keys to which this command may be bound (and the accents
549 which it understands) are:
550
551 ' (acute) \301\311\315\323\332\335 \341\351\355\363\372\375
552 ` (grave) \300\310\314\322\331 \340\350\354\362\371
553 : (diaeresis) \304\313\317\326\334 \344\353\357\366\374\377
554 ^ (circumflex) \302\312\316\324\333 \342\352\356\364\373
555 , (cedilla) \307\347
556 . (ring) \305\345"
557 (interactive "p")
558 (or count (setq count 1))
559
560 (if (not (eq last-command 'self-insert-command))
561 ;; Only do the magic if the two chars were typed in succession.
562 (self-insert-command count)
563
564 ;; This is so that ``a : C-x u'' will transform `adiaeresis' back into `a:'
565 (self-insert-command count)
566 (undo-boundary)
567 (delete-char (- count))
568
569 (let* ((c last-command-char)
570 (map (cond ((eq c ?') compose-acute-map)
571 ((eq c ?`) compose-grave-map)
572 ((eq c ?,) compose-cedilla-map)
573 ((eq c ?:) compose-diaeresis-map)
574 ((eq c ?^) compose-circumflex-map)
575 ((eq c ?~) compose-tilde-map)
576 ((eq c ?.) compose-ring-map)
577 (t (error "unknown diacritic: %s (%c)" c c))))
578 (base-char (preceding-char))
579 (mod-char (and (>= (downcase base-char) ?a) ; only do alphabetics?
580 (<= (downcase base-char) ?z)
581 (lookup-key map (make-string 1 base-char)))))
582 (if (and (vectorp mod-char) (= (length mod-char) 1))
583 (setq mod-char (aref mod-char 0)))
584 (if (and mod-char (symbolp mod-char))
585 (setq mod-char (or (get mod-char character-set-property) mod-char)))
586 (if (and mod-char (> count 0))
587 (delete-char -1)
588 (setq mod-char c))
589 (while (> count 0)
590 (insert mod-char)
591 (setq count (1- count))))))
592
593 ;; should "::" mean "¨" and ": " mean ":"?
594 ;; should we also do
595 ;; (?~
596 ;; (?A "\303")
597 ;; (?C "\307")
598 ;; (?D "\320")
599 ;; (?N "\321")
600 ;; (?O "\325")
601 ;; (?a "\343")
602 ;; (?c "\347")
603 ;; (?d "\360")
604 ;; (?n "\361")
605 ;; (?o "\365")
606 ;; (?> "\273")
607 ;; (?< "\253")
608 ;; (? "~")) ; no special code
609 ;; (?\/
610 ;; (?A "\305") ;; A-with-ring (Norwegian and Danish)
611 ;; (?E "\306") ;; AE-ligature (Norwegian and Danish)
612 ;; (?O "\330")
613 ;; (?a "\345") ;; a-with-ring (Norwegian and Danish)
614 ;; (?e "\346") ;; ae-ligature (Norwegian and Danish)
615 ;; (?o "\370")
616 ;; (? "/")) ; no special code
617
618
619 ;;; Providing help in the middle of a compose sequence. (Way cool.)
620
621 (eval-when-compile
622 (defsubst next-composable-event ()
623 (let (event)
624 (while (progn
625 (setq event (next-command-event))
626 (not (or (key-press-event-p event)
627 (button-press-event-p event))))
628 (dispatch-event event))
629 event)))
630
631 (defun compose-help (ignore-prompt)
632 (let* ((keys (apply 'vector (nbutlast (append (this-command-keys) nil))))
633 (map (or (lookup-key function-key-map keys)
634 (error "can't find map? %s %s" keys (this-command-keys))))
635 binding)
636 (save-excursion
637 (with-output-to-temp-buffer "*Help*"
638 (set-buffer "*Help*")
639 (erase-buffer)
640 (message "Working...")
641 (setq ctl-arrow 'compose) ; non-t-non-nil
642 (insert "You are typing a compose sequence. So far you have typed: ")
643 (insert (key-description keys))
644 (insert "\nCompletions from here are:\n\n")
645 (map-keymap 'compose-help-mapper map t)
646 (message "? ")))
647 (while (keymapp map)
648 (setq binding (lookup-key map (vector (next-composable-event))))
649 (if (null binding)
650 (message "No such key in keymap. Try again.")
651 (setq map binding)))
652 binding))
653
654 (put 'compose-help 'isearch-command t) ; so that it doesn't terminate isearch
655
656 (defun compose-help-mapper (key binding)
657 (if (and (symbolp key)
658 (get key character-set-property))
659 (setq key (get key character-set-property)))
660 (if (eq binding 'compose-help) ; suppress that...
661 nil
662 (if (keymapp binding)
663 (let ((p (point)))
664 (map-keymap 'compose-help-mapper binding t)
665 (goto-char p)
666 (while (not (eobp))
667 (if (characterp key)
668 (insert (make-string 1 key))
669 (insert (single-key-description key)))
670 (insert " ")
671 (forward-line 1)))
672 (if (characterp key)
673 (insert (make-string 1 key))
674 (insert (single-key-description key)))
675 (indent-to 16)
676 (let ((code (and (vectorp binding)
677 (= 1 (length binding))
678 (get (aref binding 0) character-set-property))))
679 (if code
680 (insert (make-string 1 code))
681 (if (stringp binding)
682 (insert binding)
683 (insert (prin1-to-string binding)))))
684 (when (and (vectorp binding) (= 1 (length binding)))
685 (indent-to 32)
686 (insert (symbol-name (aref binding 0)))))
687 (insert "\n")))
688
689 ;; define it at top-level in the compose map...
690 ;;(define-key compose-map [(control h)] 'compose-help)
691 ;;(define-key compose-map [help] 'compose-help)
692 ;; and then define it in each sub-map of the compose map.
693 (map-keymap
694 (lambda (key binding)
695 (when (keymapp binding)
696 ;; (define-key binding [(control h)] 'compose-help)
697 ;; (define-key binding [help] 'compose-help)
698 ))
699 compose-map nil)
700
701 ;; Make redisplay display the accented letters
702 (if (memq (default-value 'ctl-arrow) '(t nil))
703 (setq-default ctl-arrow 'iso-8859/1))
704
705
706 (provide 'x-compose)
707
708 ;;; x-compose.el ends here