1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
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
149
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
179
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
228
229
230
231
232
233
234
235
236
237
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
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
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
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
|
;;; $Id: emacspeak-c.el,v 7.0 1997/11/13 15:32:30 raman Exp $
;;; $Author: raman $
;;; DescriptionEmacspeak extensions for C and C++ mode
;;; Keywords:emacspeak, audio interface to emacs C, C++
;;{{{ LCD Archive entry:
;;; LCD Archive Entry:
;;; emacspeak| T. V. Raman |raman@adobe.com
;;; A speech interface to Emacs |
;;; $Date: 1997/11/13 15:32:30 $ |
;;; $Revision: 7.0 $ |
;;; Location undetermined
;;;
;;}}}
;;{{{ Copyright:
;;;Copyright (C) 1995, 1996, 1997 T. V. Raman Adobe Systems Incorporated
;;; Copyright (c) 1994, 1995 by Digital Equipment Corporation.
;;; All Rights Reserved.
;;;
;;; This file is not part of GNU Emacs, but the same permissions apply.
;;;
;;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
;;}}}
(require 'cl)
(declaim (optimize (safety 0) (speed 3)))
(require 'emacspeak-speak)
(require 'emacspeak-sounds)
(eval-when (compile)
(require 'cc-mode ))
;;{{{ Introduction:
;;; Make some of C and C++ mode more emacspeak friendly
;;; Works with both boring c-mode
;;; and the excellent cc-mode
;;}}}
;;{{{ emacs 19.30
;;; things got renamed in 19.30.
(when (string-lessp emacs-version "19.29")
(defalias 'c-guess-basic-syntax 'c-guess-basic-semantics))
;;}}}
;;{{{ advice electric deletion
(defadvice c-electric-backspace (around emacspeak pre act)
"Speak character you're deleting."
(cond
((interactive-p )
(dtk-tone 500 30 'force)
(and emacspeak-backward-delete-char-speak-deleted-char
(emacspeak-speak-this-char (preceding-char )))
ad-do-it
(and emacspeak-backward-delete-char-speak-current-char
(emacspeak-speak-this-char (preceding-char ))))
(t ad-do-it))
ad-return-value)
;;}}}
;;{{{ advice things to speak
;;{{{ Electric chars speak
(defadvice c-electric-star (after emacspeak pre act )
"Speak what you typed"
(when (interactive-p)
(dtk-say "star")))
(defadvice c-electric-semi&comma (after emacspeak pre act )
"Speak the line when a statement is completed."
(when (interactive-p)
(cond
((= last-input-char ?,) (dtk-speak " comma "))
(t (emacspeak-speak-line )))))
(defadvice c-electric-slash (after emacspeak pre act )
"Speak the line when a statement is completed."
(when (interactive-p)
(dtk-say "slash")))
(defadvice c-electric-lt-gt (after emacspeak pre act )
"Speak what you typed"
(declare (special last-input-char))
(when (interactive-p)
(emacspeak-speak-this-char last-input-char)))
(defadvice electric-c-terminator (after emacspeak pre act )
"Speak what was typed. "
(when (interactive-p)
(emacspeak-speak-this-char last-input-char)))
(defadvice c-electric-colon (after emacspeak pre act )
"Speak the character you inserted"
(when (interactive-p)
(emacspeak-speak-this-char last-input-char)))
(defadvice c-electric-pound (after emacspeak pre act )
"Speak the character you inserted"
(when (interactive-p)
(emacspeak-speak-this-char last-input-char)))
(defadvice c-electric-brace (after emacspeak pre act )
"Speak the character you inserted"
(when (interactive-p)
(emacspeak-speak-this-char last-input-char)))
(defadvice electric-c-semi (after emacspeak pre act )
"Speak what was typed. "
(when (interactive-p)
(emacspeak-speak-this-char last-input-char)))
(defadvice electric-c-sharp-sign (after emacspeak pre act )
"Speak what was typed. "
(when (interactive-p)
(emacspeak-speak-this-char last-input-char)))
(defadvice electric-c-brace (after emacspeak pre act )
"Speak what was typed. "
(when (interactive-p)
(emacspeak-speak-this-char last-input-char)))
(defadvice c-electric-delete (before emacspeak pre act )
"Speak char before deleting it."
(when (interactive-p )
(emacspeak-speak-this-char(preceding-char ))
(dtk-tone 500 30)))
;;}}}
;;{{{ Moving across logical chunks
;;; CPP directives:
(defadvice c-up-conditional (after emacspeak pre act )
"Speak the line moved to."
(when (interactive-p)
(emacspeak-auditory-icon 'large-movement)
(emacspeak-speak-line )))
(defadvice c-forward-conditional (after emacspeak pre act )
"Speak the line moved to."
(when (interactive-p)
(emacspeak-auditory-icon 'large-movement)
(emacspeak-speak-line )))
(defadvice c-backward-conditional (after emacspeak pre act )
"Speak the line moved to."
(when (interactive-p)
(emacspeak-auditory-icon 'large-movement)
(emacspeak-speak-line )))
;;; Statements
(defadvice c-beginning-of-statement (after emacspeak pre act )
"Speak the line moved to."
(when (interactive-p)
(emacspeak-auditory-icon 'large-movement)
(emacspeak-speak-line )))
(defadvice c-end-of-statement (after emacspeak pre act )
"Speak the line moved to."
(when (interactive-p)
(emacspeak-auditory-icon 'large-movement)
(emacspeak-speak-line )))
(defadvice mark-c-function (after emacspeak pre act )
"Provide spoken and auditory feedback."
(when (interactive-p)
(let ((dtk-stop-immediately nil))
(emacspeak-auditory-icon 'mark-object)
(dtk-speak "Marked function containing %s lines "
(count-lines (point) (mark)))
(emacspeak-speak-line ))))
;;}}}
;;}}}
;;{{{ extensions provided by c++ mode
(defadvice c-scope-operator (after emacspeak pre act )
"speak what you inserted."
(when (interactive-p)
(dtk-speak "colon colon")))
;;}}}
;;{{{ Some more navigation functions I define:
(defun c-previous-statement (count)
"Move to the previous C statement. "
(interactive "P")
(emacspeak-auditory-icon 'large-movement)
(let ((opoint (point))
(semantics (c-guess-basic-syntax )))
;;; skip across a comment
(cond
((or (assq 'c semantics )
(assq 'comment-intro semantics ))
(while
(and (or (assq 'c semantics )
(assq 'comment-intro semantics ))
(not (eobp ))
(= 0 (forward-line -1)))
(setq semantics (c-guess-basic-syntax )))
(skip-syntax-backward " ")
(dtk-speak "Skipping comment")
(and (sit-for 2)
(emacspeak-speak-line )))
(t (setq count (or count 1))
(c-beginning-of-statement count )
(and (save-match-data (looking-at "{"))
(skip-syntax-backward " "))
(if (>= (point) opoint)
(progn (dtk-speak "Cannot move to previous statement at
this level")
(goto-char opoint)
(and (sit-for 2)
(emacspeak-c-speak-semantics)))
(emacspeak-speak-line))))))
(defun c-next-statement (count)
"Move to the next C statement. "
(interactive "P")
(emacspeak-auditory-icon 'large-movement)
(let ((opoint (point))
(semantics (c-guess-basic-syntax )))
;;; skip across a comment
(cond
((or (assq 'c semantics )
(assq 'comment-intro semantics ))
(while
(and (or (assq 'c semantics )
(assq 'comment-intro semantics ))
(not (eobp ))
(= 0 (forward-line 1)))
(setq semantics (c-guess-basic-syntax )))
(skip-syntax-forward " ")
(dtk-speak "Skipping comment")
(and (sit-for 2)
(emacspeak-speak-line )))
(t (setq count (or count 1))
(c-end-of-statement(1+ count ))
(c-beginning-of-statement 1 )
(and (save-match-data (looking-at "{"))
(skip-syntax-backward " "))
(if (<= (point) opoint)
(progn (dtk-speak "Cannot move to next statement at this
level")
(goto-char opoint)
(and (sit-for 2)
(emacspeak-c-speak-semantics)))
(emacspeak-speak-line))))))
;;}}}
;;{{{ C semantics
(defvar emacspeak-c-syntactic-table
(list
'(string . " inside multi-line string")
'( c . " inside a multi-line C style block comment")
'( defun-open . " brace that opens a function definition")
'( defun-close . " brace that closes a function definition")
'( defun-block-intro . " the first line in a top-level defun")
'( class-open . " brace that opens a class definition")
'( class-close . " brace that closes a class definition")
'( inline-open . " brace that opens an in-class inline method")
'( inline-close . " brace that closes an in-class inline method")
'( func-decl-cont . " the region between a
function definition's argument list and the function opening brace")
'( knr-argdecl-intro . " first line of a K&R C argument declaration")
'( knr-argdecl . " subsequent lines in a K&R C argument declaration")
'( topmost-intro . " the first line in a topmost construct definition")
'( topmost-intro-cont . " topmost definition continuation lines")
'( member-init-intro . " first line in a member initialization list")
'( member-init-cont . " subsequent member initialization list lines")
'( inher-intro . " first line of a multiple inheritance list")
'( inher-cont . " subsequent multiple inheritance lines")
'( block-open . " statement block open brace")
'( block-close . " statement block close brace")
'( brace-list-open . " open brace of an enum or static array list")
'( brace-list-close . " close brace of an enum or static array list")
'( brace-list-intro . " first line in an enum or static array list")
'( brace-list-entry . " subsequent lines in an enum or static array list")
'( statement . " a C (or like) statement")
'( statement-cont . " a continuation of a C (or like) statement")
'( statement-block-intro . " the first line in a new statement block")
'( statement-case-intro . " the first line in a case block")
'( statement-case-open . " the first line in a case block starting with brace")
'( substatement . " the first line after an if/while/for/do/else")
'( substatement-open . " the brace that opens a substatement block")
'( case-label . " a `case' or `default' label")
'( access-label . " C++ private/protected/public access label")
'( label . " any ordinary label")
'( do-while-closure . " the `while' that ends a do/while construct")
'( else-clause . " the `else' of an if/else construct")
'( comment-intro . " a line containing only a comment introduction")
'( arglist-intro . " the first line in an argument list")
'( arglist-cont . " subsequent argument list lines when no
arguments follow on the same line as the
arglist opening paren")
'( arglist-cont-nonempty . " subsequent argument list lines when at
least one argument follows on the same
line as the arglist opening paren")
'( arglist-close . " the solo close paren of an argument list")
'( stream-op . " lines continuing a stream operator construct")
'( inclass . " the construct is nested inside a class definition")
'( cpp-macro . " the start of a cpp macro")
'( friend . " a C++ friend declaration")
'( objc-method-intro . " the first line of an Objective-C method definition")
'( objc-method-args-cont . " lines continuing an Objective-C method definition")
'( objc-method-call-cont . " lines continuing an Objective-C method call")
'( extern-lang-open . " brace that opens an external language block")
'( extern-lang-close . " brace that closes an external language block")
'( inextern-lang . " analogous to `inclass' syntactic symbol")
'( template-args-cont . " C++ template argument list continuations")
)
"Association list of semantic symbols defined by cc-mode
and their meanings. ")
(defun emacspeak-c-speak-semantics ()
"Speak the C semantics of this line. "
(interactive)
(declare (special emacspeak-c-syntactic-table ))
(let ((semantics (mapcar 'car
(c-guess-basic-syntax )))
(description ""))
(setq description
(mapconcat
(function (lambda (sem)
(cdr (assq sem emacspeak-c-syntactic-table ))))
semantics
" "))
(condition-case nil
(cond
((or (memq 'block-close semantics )
(memq 'defun-close semantics )
(memq 'class-close semantics )
(memq 'inline-close semantics )
(memq 'brace-list-close semantics ))
;; append the line
(setq description
(concat description
;; that begins this block
(let ((start nil ))
(save-excursion
(beginning-of-line)
(search-forward "}" nil t)
(forward-char 1)
(backward-sexp 1)
(setq start (point))
(beginning-of-line)
(skip-syntax-forward " ")
(and (= start (point))
(forward-line -1)
(beginning-of-line))
(setq start (point))
(end-of-line)
(buffer-substring start
(point))))))))
(error nil ))
(dtk-speak description )
description))
;;}}}
;;{{{ indenting commands
(defadvice c-indent-defun (after emacspeak pre act)
(when (interactive-p)
(emacspeak-auditory-icon 'fill-object)
(message "Indented function")))
;;}}}
;;{{{ Additional keybindings:
(declaim (special c-mode-map
c-mode-base-map))
(add-hook 'c-mode-common-hook
(function (lambda ()
(declare (special c-mode-map
c-mode-base-map))
(define-key c-mode-map "\C-cs" 'emacspeak-c-speak-semantics)
(define-key c-mode-map "\M-n" 'c-next-statement)
(define-key c-mode-map "\M-p"
'c-previous-statement)
(when (and (boundp 'c-mode-base-map)
c-mode-base-map)
(define-key c-mode-base-map "\C-cs" 'emacspeak-c-speak-semantics)
(define-key c-mode-base-map "\M-n" 'c-next-statement)
(define-key c-mode-base-map "\M-p"
'c-previous-statement))
(or dtk-split-caps
(dtk-toggle-split-caps))
(or dtk-allcaps-beep
(dtk-toggle-allcaps-beep)))))
;;}}}
(provide 'emacspeak-c)
;;{{{ emacs local variables
;;; local variables:
;;; folded-file: t
;;; end:
;;}}}
|
