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
|
/* $Xorg: imLcLkup.c,v 1.3 2000/08/17 19:45:14 cpqbld Exp $ */
/******************************************************************
Copyright 1992 by Fuji Xerox Co., Ltd.
Copyright 1992, 1994 by FUJITSU LIMITED
Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and
that both that copyright notice and this permission notice appear
in supporting documentation, and that the name of Fuji Xerox,
FUJITSU LIMITED not be used in advertising or publicity pertaining
to distribution of the software without specific, written prior
permission. Fuji Xerox, FUJITSU LIMITED make no representations
about the suitability of this software for any purpose.
It is provided "as is" without express or implied warranty.
FUJI XEROX, FUJITSU LIMITED DISCLAIM ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL FUJI XEROX,
FUJITSU LIMITED BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
Author: Kazunori Nishihara Fuji Xerox
Takashi Fujiwara FUJITSU LIMITED
fujiwara@a80.tech.yk.fujitsu.co.jp
******************************************************************/
/* $XFree86: xc/lib/X11/imLcLkup.c,v 3.8 2003/06/23 17:35:43 eich Exp $ */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <X11/Xatom.h>
#include <X11/Xos.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <X11/Xutil.h>
#include "Xlibint.h"
#include "Xlcint.h"
#include "XlcPubI.h"
#include "Ximint.h"
Public int
_XimLocalMbLookupString(XIC xic, XKeyEvent *ev, char *buffer, int bytes,
KeySym *keysym, Status *status)
{
Xic ic = (Xic)xic;
int ret;
DefTree *b = ic->private.local.base.tree;
char *mb = ic->private.local.base.mb;
if(ev->type != KeyPress) {
if(status) *status = XLookupNone;
return(0);
}
if(ev->keycode == 0 &&
( (ic->private.local.composed != 0)
||(ic->private.local.brl_committed != 0))) {
if (ic->private.local.brl_committed != 0) { /* Braille Event */
unsigned char pattern = ic->private.local.brl_committed;
char *mb=malloc(XLC_PUBLIC(ic->core.im->core.lcd, mb_cur_max));
ret = _Xlcwctomb(ic->core.im->core.lcd, mb, BRL_UC_ROW | pattern);
if(ret > bytes) {
if(status) *status = XBufferOverflow;
free(mb);
return(ret);
}
if(keysym) {
*keysym = XK_braille_blank | pattern;
if(status) *status = XLookupBoth;
} else
if(status) *status = XLookupChars;
memcpy(buffer, mb, ret);
free(mb);
} else { /* Composed Event */
ret = strlen(&mb[b[ic->private.local.composed].mb]);
if(ret > bytes) {
if(status) *status = XBufferOverflow;
return(ret);
}
memcpy(buffer, &mb[b[ic->private.local.composed].mb], ret);
if(keysym) *keysym = b[ic->private.local.composed].ks;
if (ret > 0) {
if (keysym && *keysym != NoSymbol) {
if(status) *status = XLookupBoth;
} else {
if(status) *status = XLookupChars;
}
} else {
if(keysym && *keysym != NoSymbol) {
if(status) *status = XLookupKeySym;
} else {
if(status) *status = XLookupNone;
}
}
}
return (ret);
} else { /* Throughed Event */
ret = _XimLookupMBText(ic, ev, buffer, bytes, keysym, NULL);
if(ret > 0) {
if (ret > bytes) {
if (status) *status = XBufferOverflow;
} else if (keysym && *keysym != NoSymbol) {
if(status) *status = XLookupBoth;
} else {
if(status) *status = XLookupChars;
}
} else {
if(keysym && *keysym != NoSymbol) {
if(status) *status = XLookupKeySym;
} else {
if(status) *status = XLookupNone;
}
}
}
return (ret);
}
Public int
_XimLocalWcLookupString(XIC xic, XKeyEvent *ev, wchar_t *buffer, int wlen,
KeySym *keysym, Status *status)
{
Xic ic = (Xic)xic;
int ret;
DefTree *b = ic->private.local.base.tree;
wchar_t *wc = ic->private.local.base.wc;
if(ev->type != KeyPress) {
if(status) *status = XLookupNone;
return(0);
}
if(ev->keycode == 0) {
if (ic->private.local.brl_committed != 0) { /* Braille Event */
unsigned char pattern = ic->private.local.brl_committed;
ret = 1;
if (ret > wlen) {
if(status) *status = XBufferOverflow;
return (ret);
}
*buffer = BRL_UC_ROW | pattern;
if(keysym) {
*keysym = XK_braille_blank | pattern;
if(status) *status = XLookupBoth;
} else
if(status) *status = XLookupChars;
} else { /* Composed Event */
ret = _Xwcslen(&wc[b[ic->private.local.composed].wc]);
if(ret > wlen) {
if(status) *status = XBufferOverflow;
return (ret);
}
memcpy((char *)buffer, (char *)&wc[b[ic->private.local.composed].wc],
ret * sizeof(wchar_t));
if(keysym) *keysym = b[ic->private.local.composed].ks;
if (ret > 0) {
if (keysym && *keysym != NoSymbol) {
if(status) *status = XLookupBoth;
} else {
if(status) *status = XLookupChars;
}
} else {
if(keysym && *keysym != NoSymbol) {
if(status) *status = XLookupKeySym;
} else {
if(status) *status = XLookupNone;
}
}
}
return (ret);
} else { /* Throughed Event */
ret = _XimLookupWCText(ic, ev, buffer, wlen, keysym, NULL);
if(ret > 0) {
if (ret > wlen) {
if (status) *status = XBufferOverflow;
} else if (keysym && *keysym != NoSymbol) {
if(status) *status = XLookupBoth;
} else {
if(status) *status = XLookupChars;
}
} else {
if(keysym && *keysym != NoSymbol) {
if(status) *status = XLookupKeySym;
} else {
if(status) *status = XLookupNone;
}
}
}
return (ret);
}
Public int
_XimLocalUtf8LookupString(XIC xic, XKeyEvent *ev, char *buffer, int bytes,
KeySym *keysym, Status *status)
{
Xic ic = (Xic)xic;
int ret;
DefTree *b = ic->private.local.base.tree;
char *utf8 = ic->private.local.base.utf8;
if(ev->type != KeyPress) {
if(status) *status = XLookupNone;
return(0);
}
if(ev->keycode == 0) {
if (ic->private.local.brl_committed != 0) { /* Braille Event */
unsigned char pattern = ic->private.local.brl_committed;
ret = 3;
if (ret > bytes) {
if(status) *status = XBufferOverflow;
return (ret);
}
buffer[0] = 0xe0 | ((BRL_UC_ROW >> 12) & 0x0f);
buffer[1] = 0x80 | ((BRL_UC_ROW >> 8) & 0x30) | (pattern >> 6);
buffer[2] = 0x80 | (pattern & 0x3f);
} else { /* Composed Event */
ret = strlen(&utf8[b[ic->private.local.composed].utf8]);
if(ret > bytes) {
if(status) *status = XBufferOverflow;
return (ret);
}
memcpy(buffer, &utf8[b[ic->private.local.composed].utf8], ret);
if(keysym) *keysym = b[ic->private.local.composed].ks;
if (ret > 0) {
if (keysym && *keysym != NoSymbol) {
if(status) *status = XLookupBoth;
} else {
if(status) *status = XLookupChars;
}
} else {
if(keysym && *keysym != NoSymbol) {
if(status) *status = XLookupKeySym;
} else {
if(status) *status = XLookupNone;
}
}
}
return (ret);
} else { /* Throughed Event */
ret = _XimLookupUTF8Text(ic, ev, buffer, bytes, keysym, NULL);
if(ret > 0) {
if (ret > bytes) {
if (status) *status = XBufferOverflow;
} else if (keysym && *keysym != NoSymbol) {
if(status) *status = XLookupBoth;
} else {
if(status) *status = XLookupChars;
}
} else {
if(keysym && *keysym != NoSymbol) {
if(status) *status = XLookupKeySym;
} else {
if(status) *status = XLookupNone;
}
}
}
return (ret);
}
Private int
_XimLcctsconvert(
XlcConv conv,
char *from,
int from_len,
char *to,
int to_len,
Status *state)
{
int from_left;
int to_left;
int from_savelen;
int to_savelen;
int from_cnvlen;
int to_cnvlen;
char *from_buf;
char *to_buf;
char scratchbuf[BUFSIZ];
Status tmp_state;
if (!state)
state = &tmp_state;
if (!conv || !from || !from_len) {
*state = XLookupNone;
return 0;
}
/* Reset the converter. The CompoundText at 'from' starts in
initial state. */
_XlcResetConverter(conv);
from_left = from_len;
to_left = BUFSIZ;
from_cnvlen = 0;
to_cnvlen = 0;
for (;;) {
from_buf = &from[from_cnvlen];
from_savelen = from_left;
to_buf = &scratchbuf[to_cnvlen];
to_savelen = to_left;
if (_XlcConvert(conv, (XPointer *)&from_buf, &from_left,
(XPointer *)&to_buf, &to_left, NULL, 0) < 0) {
*state = XLookupNone;
return 0;
}
from_cnvlen += (from_savelen - from_left);
to_cnvlen += (to_savelen - to_left);
if (from_left == 0) {
if (!to_cnvlen) {
*state = XLookupNone;
return 0;
}
break;
}
}
if (!to || !to_len || (to_len < to_cnvlen)) {
*state = XBufferOverflow;
} else {
memcpy(to, scratchbuf, to_cnvlen);
*state = XLookupChars;
}
return to_cnvlen;
}
Public int
_XimLcctstombs(XIM xim, char *from, int from_len,
char *to, int to_len, Status *state)
{
return _XimLcctsconvert(((Xim)xim)->private.local.ctom_conv,
from, from_len, to, to_len, state);
}
Public int
_XimLcctstowcs(XIM xim, char *from, int from_len,
wchar_t *to, int to_len, Status *state)
{
Xim im = (Xim)xim;
XlcConv conv = im->private.local.ctow_conv;
int from_left;
int to_left;
int from_savelen;
int to_savelen;
int from_cnvlen;
int to_cnvlen;
char *from_buf;
wchar_t *to_buf;
wchar_t scratchbuf[BUFSIZ];
Status tmp_state;
if (!state)
state = &tmp_state;
if (!conv || !from || !from_len) {
*state = XLookupNone;
return 0;
}
/* Reset the converter. The CompoundText at 'from' starts in
initial state. */
_XlcResetConverter(conv);
from_left = from_len;
to_left = BUFSIZ;
from_cnvlen = 0;
to_cnvlen = 0;
for (;;) {
from_buf = &from[from_cnvlen];
from_savelen = from_left;
to_buf = &scratchbuf[to_cnvlen];
to_savelen = to_left;
if (_XlcConvert(conv, (XPointer *)&from_buf, &from_left,
(XPointer *)&to_buf, &to_left, NULL, 0) < 0) {
*state = XLookupNone;
return 0;
}
from_cnvlen += (from_savelen - from_left);
to_cnvlen += (to_savelen - to_left);
if (from_left == 0) {
if (!to_cnvlen){
*state = XLookupNone;
return 0;
}
break;
}
}
if (!to || !to_len || (to_len < to_cnvlen)) {
*state = XBufferOverflow;
} else {
memcpy(to, scratchbuf, to_cnvlen * sizeof(wchar_t));
*state = XLookupChars;
}
return to_cnvlen;
}
Public int
_XimLcctstoutf8(XIM xim, char *from, int from_len,
char *to, int to_len, Status *state)
{
return _XimLcctsconvert(((Xim)xim)->private.local.ctoutf8_conv,
from, from_len, to, to_len, state);
}
|
