| blob | 766dd0fe970a7c421459d91e1bc1a847b2ea384f |
1 /* Generic conversion to and from T.61.
2 Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #include <gconv.h>
22 #include <stdint.h>
23 #include <string.h>
25 /* Data taken from the WG15 tables. */
27 {
60 };
62 /* The outer array range runs from 0xc1 to 0xcf, the inner range from 0x20
63 to 0x7f. */
65 {
66 /* 0xc1 */
67 {
80 },
81 /* 0xc2 */
82 {
95 },
96 /* 0xc3 */
97 {
110 },
111 /* 0xc4 */
112 {
125 },
126 /* 0xc5 */
127 {
140 },
141 /* 0xc6 */
142 {
155 },
156 /* 0xc7 */
157 {
170 },
171 /* 0xc8 */
172 {
185 },
186 /* 0xc9 */
187 {
189 },
190 /* 0xca */
191 {
204 },
205 /* 0xcb */
206 {
219 },
220 /* 0xcc */
221 {
223 },
224 /* 0xcd */
225 {
238 },
239 /* 0xce */
240 {
253 },
254 /* 0xcf */
255 {
268 }
269 };
273 {
351 /*
352 This table does not cover the following positions:
354 0x02c7 "\xcf\x20",
355 ...
356 0x02d8 "\xc6\x20", "\xc7\x20", "\xca\x20", "\xce\x20", "\x00\x00",
357 0x02dd "\xcd\x20",
358 ...
359 0x2126 "\xe0\x00"
361 These would blow up the table and are therefore handled specially in
362 the code.
363 */
364 };
367 /* Definitions used in the body of the `gconv' function. */
369 #define FROM_LOOP from_t_61
370 #define TO_LOOP to_t_61
371 #define DEFINE_INIT 1
372 #define DEFINE_FINI 1
373 #define MIN_NEEDED_FROM 1
374 #define MAX_NEEDED_FROM 2
375 #define MIN_NEEDED_TO 4
377 /* First define the conversion function from T.61 to UCS4. */
378 #define MIN_NEEDED_INPUT MIN_NEEDED_FROM
379 #define MAX_NEEDED_INPUT MAX_NEEDED_FROM
380 #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
381 #define LOOPFCT FROM_LOOP
382 #define BODY \
383 { \
384 uint32_t ch = *inptr; \
385 int increment = 1; \
386 \
387 if (__builtin_expect (ch, 0x20) >= 0xc1 && ch <= 0xcf) \
388 { \
389 /* Composed character. First test whether the next character \
391 uint32_t ch2; \
392 \
393 if (NEED_LENGTH_TEST && __builtin_expect (inptr + 1 >= inend, 0)) \
394 { \
396 result = __GCONV_INCOMPLETE_INPUT; \
397 break; \
398 } \
399 \
400 ch2 = inptr[1]; \
401 \
402 if (__builtin_expect (ch2, 0x20) < 0x20 \
403 || __builtin_expect (ch2, 0x20) >= 0x80) \
404 { \
406 if (! ignore_errors_p ()) \
407 { \
409 result = __GCONV_ILLEGAL_INPUT; \
410 break; \
411 } \
412 \
413 ++inptr; \
414 ++*converted; \
415 continue; \
416 } \
417 \
418 ch = to_ucs4_comb[ch - 0xc1][ch2 - 0x20]; \
419 \
420 increment = 2; \
421 } \
422 else \
423 ch = to_ucs4[ch]; \
424 \
426 { \
428 if (! ignore_errors_p ()) \
429 { \
431 result = __GCONV_ILLEGAL_INPUT; \
432 break; \
433 } \
434 \
435 ++*converted; \
436 } \
437 else \
438 { \
439 put32 (outptr, ch); \
440 outptr += 4; \
441 } \
442 inptr += increment; \
443 }
444 #include <iconv/loop.c>
447 /* Next, define the other direction. */
448 #define MIN_NEEDED_INPUT MIN_NEEDED_TO
449 #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
450 #define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
451 #define LOOPFCT TO_LOOP
452 #define BODY \
453 { \
454 char tmp[2]; \
455 uint32_t ch = get32 (inptr); \
456 const char *cp; \
457 \
458 if (__builtin_expect (ch, 0) \
459 >= sizeof (from_ucs4) / sizeof (from_ucs4[0])) \
460 { \
461 if (__builtin_expect (ch, 0) == 0x2126) \
463 else if (__builtin_expect (ch, 0) == 0x2c7) \
465 else if (__builtin_expect (ch, 0x2d8) < 0x2d8 \
466 || __builtin_expect (ch, 0x2d8) > 0x2dd \
467 || __builtin_expect (ch, 0x2d8) == 0x02dc) \
468 { \
470 if (! ignore_errors_p ()) \
471 { \
473 result = __GCONV_ILLEGAL_INPUT; \
474 break; \
475 } \
476 \
477 inptr += 4; \
478 ++*converted; \
479 continue; \
480 } \
481 else \
482 { \
484 \
485 tmp[0] = map[ch - 0x2d8]; \
487 cp = tmp; \
488 } \
489 } \
490 else \
491 { \
492 cp = from_ucs4[ch]; \
493 \
495 { \
497 if (! ignore_errors_p ()) \
498 { \
500 result = __GCONV_ILLEGAL_INPUT; \
501 break; \
502 } \
503 \
504 inptr += 4; \
505 ++*converted; \
506 continue; \
507 } \
508 } \
509 \
510 *outptr++ = cp[0]; \
513 { \
514 if (NEED_LENGTH_TEST && __builtin_expect (outptr >= outend, 0)) \
515 { \
517 --outptr; \
518 result = __GCONV_FULL_OUTPUT; \
519 break; \
520 } \
521 \
522 *outptr++ = cp[1]; \
523 } \
524 \
525 inptr += 4; \
526 }
527 #include <iconv/loop.c>
530 /* Now define the toplevel functions. */
531 #include <iconv/skeleton.c>