ICU 58.2 58.2

- Main Page
- Related Pages
- Modules
- Namespaces
- Data Structures
- Files

- File List
- Globals

utf_old.h
Go to the documentation of this file.
1 // Copyright (C) 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 *******************************************************************************
5 *
6 * Copyright (C) 2002-2012, International Business Machines
7 * Corporation and others. All Rights Reserved.
8 *
9 *******************************************************************************
10 * file name: utf_old.h
11 * encoding: US-ASCII
12 * tab size: 8 (not used)
13 * indentation:4
14 *
15 * created on: 2002sep21
16 * created by: Markus W. Scherer
17 */
18
145 #ifndef __UTF_OLD_H__
146 #define __UTF_OLD_H__
147
148 #ifndef U_HIDE_DEPRECATED_API
149
150 #include "unicode/utf.h"
151 #include "unicode/utf8.h"
152 #include "unicode/utf16.h"
153
154 /* Formerly utf.h, part 1 --------------------------------------------------- */
155
156 #ifdef U_USE_UTF_DEPRECATES
157
164 typedef int32_t UTextOffset;
165 #endif
166
168 #define UTF_SIZE 16
169
176 #define UTF_SAFE
177
178 #undef UTF_UNSAFE
179
180 #undef UTF_STRICT
181
196 #define UTF8_ERROR_VALUE_1 0x15
197
203 #define UTF8_ERROR_VALUE_2 0x9f
204
211 #define UTF_ERROR_VALUE 0xffff
212
219 #define UTF_IS_ERROR(c) \
220 (((c)&0xfffe)==0xfffe || (c)==UTF8_ERROR_VALUE_1 || (c)==UTF8_ERROR_VALUE_2)
221
227 #define UTF_IS_VALID(c) \
228 (UTF_IS_UNICODE_CHAR(c) && \
229 (c)!=UTF8_ERROR_VALUE_1 && (c)!=UTF8_ERROR_VALUE_2)
230
235 #define UTF_IS_SURROGATE(uchar) (((uchar)&0xfffff800)==0xd800)
236
242 #define UTF_IS_UNICODE_NONCHAR(c) \
243 ((c)>=0xfdd0 && \
244 ((uint32_t)(c)<=0xfdef || ((c)&0xfffe)==0xfffe) && \
245 (uint32_t)(c)<=0x10ffff)
246
262 #define UTF_IS_UNICODE_CHAR(c) \
263 ((uint32_t)(c)<0xd800 || \
264 ((uint32_t)(c)>0xdfff && \
265 (uint32_t)(c)<=0x10ffff && \
266 !UTF_IS_UNICODE_NONCHAR(c)))
267
268 /* Formerly utf8.h ---------------------------------------------------------- */
269
274 #define UTF8_COUNT_TRAIL_BYTES(leadByte) (utf8_countTrailBytes[(uint8_t)leadByte])
275
280 #define UTF8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1)
281
283 #define UTF8_IS_SINGLE(uchar) (((uchar)&0x80)==0)
284
285 #define UTF8_IS_LEAD(uchar) ((uint8_t)((uchar)-0xc0)<0x3e)
286
287 #define UTF8_IS_TRAIL(uchar) (((uchar)&0xc0)==0x80)
288
290 #define UTF8_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0x7f)
291
305 #if 1
306 # define UTF8_CHAR_LENGTH(c) \
307 ((uint32_t)(c)<=0x7f ? 1 : \
308 ((uint32_t)(c)<=0x7ff ? 2 : \
309 ((uint32_t)((c)-0x10000)>0xfffff ? 3 : 4) \
310 ) \
311 )
312 #else
313 # define UTF8_CHAR_LENGTH(c) \
314 ((uint32_t)(c)<=0x7f ? 1 : \
315 ((uint32_t)(c)<=0x7ff ? 2 : \
316 ((uint32_t)(c)<=0xffff ? 3 : \
317 ((uint32_t)(c)<=0x10ffff ? 4 : \
318 ((uint32_t)(c)<=0x3ffffff ? 5 : \
319 ((uint32_t)(c)<=0x7fffffff ? 6 : 3) \
320 ) \
321 ) \
322 ) \
323 ) \
324 )
325 #endif
326
328 #define UTF8_MAX_CHAR_LENGTH 4
329
331 #define UTF8_ARRAY_SIZE(size) ((5*(size))/2)
332
334 #define UTF8_GET_CHAR_UNSAFE(s, i, c) { \
335 int32_t _utf8_get_char_unsafe_index=(int32_t)(i); \
336 UTF8_SET_CHAR_START_UNSAFE(s, _utf8_get_char_unsafe_index); \
337 UTF8_NEXT_CHAR_UNSAFE(s, _utf8_get_char_unsafe_index, c); \
338 }
339
341 #define UTF8_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
342 int32_t _utf8_get_char_safe_index=(int32_t)(i); \
343 UTF8_SET_CHAR_START_SAFE(s, start, _utf8_get_char_safe_index); \
344 UTF8_NEXT_CHAR_SAFE(s, _utf8_get_char_safe_index, length, c, strict); \
345 }
346
348 #define UTF8_NEXT_CHAR_UNSAFE(s, i, c) { \
349 (c)=(s)[(i)++]; \
350 if((uint8_t)((c)-0xc0)<0x35) { \
351 uint8_t __count=UTF8_COUNT_TRAIL_BYTES(c); \
352 UTF8_MASK_LEAD_BYTE(c, __count); \
353 switch(__count) { \
354 /* each following branch falls through to the next one */ \
355 case 3: \
356 (c)=((c)<<6)|((s)[(i)++]&0x3f); \
357 case 2: \
358 (c)=((c)<<6)|((s)[(i)++]&0x3f); \
359 case 1: \
360 (c)=((c)<<6)|((s)[(i)++]&0x3f); \
361 /* no other branches to optimize switch() */ \
362 break; \
363 } \
364 } \
365 }
366
368 #define UTF8_APPEND_CHAR_UNSAFE(s, i, c) { \
369 if((uint32_t)(c)<=0x7f) { \
370 (s)[(i)++]=(uint8_t)(c); \
371 } else { \
372 if((uint32_t)(c)<=0x7ff) { \
373 (s)[(i)++]=(uint8_t)(((c)>>6)|0xc0); \
374 } else { \
375 if((uint32_t)(c)<=0xffff) { \
376 (s)[(i)++]=(uint8_t)(((c)>>12)|0xe0); \
377 } else { \
378 (s)[(i)++]=(uint8_t)(((c)>>18)|0xf0); \
379 (s)[(i)++]=(uint8_t)((((c)>>12)&0x3f)|0x80); \
380 } \
381 (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80); \
382 } \
383 (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \
384 } \
385 }
386
388 #define UTF8_FWD_1_UNSAFE(s, i) { \
389 (i)+=1+UTF8_COUNT_TRAIL_BYTES((s)[i]); \
390 }
391
393 #define UTF8_FWD_N_UNSAFE(s, i, n) { \
394 int32_t __N=(n); \
395 while(__N>0) { \
396 UTF8_FWD_1_UNSAFE(s, i); \
397 --__N; \
398 } \
399 }
400
402 #define UTF8_SET_CHAR_START_UNSAFE(s, i) { \
403 while(UTF8_IS_TRAIL((s)[i])) { --(i); } \
404 }
405
407 #define UTF8_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
408 (c)=(s)[(i)++]; \
409 if((c)>=0x80) { \
410 if(UTF8_IS_LEAD(c)) { \
411 (c)=utf8_nextCharSafeBody(s, &(i), (int32_t)(length), c, strict); \
412 } else { \
413 (c)=UTF8_ERROR_VALUE_1; \
414 } \
415 } \
416 }
417
419 #define UTF8_APPEND_CHAR_SAFE(s, i, length, c) { \
420 if((uint32_t)(c)<=0x7f) { \
421 (s)[(i)++]=(uint8_t)(c); \
422 } else { \
423 (i)=utf8_appendCharSafeBody(s, (int32_t)(i), (int32_t)(length), c, NULL); \
424 } \
425 }
426
428 #define UTF8_FWD_1_SAFE(s, i, length) U8_FWD_1(s, i, length)
429
431 #define UTF8_FWD_N_SAFE(s, i, length, n) U8_FWD_N(s, i, length, n)
432
434 #define UTF8_SET_CHAR_START_SAFE(s, start, i) U8_SET_CP_START(s, start, i)
435
437 #define UTF8_PREV_CHAR_UNSAFE(s, i, c) { \
438 (c)=(s)[--(i)]; \
439 if(UTF8_IS_TRAIL(c)) { \
440 uint8_t __b, __count=1, __shift=6; \
441 \
442 /* c is a trail byte */ \
443 (c)&=0x3f; \
444 for(;;) { \
445 __b=(s)[--(i)]; \
446 if(__b>=0xc0) { \
447 UTF8_MASK_LEAD_BYTE(__b, __count); \
448 (c)|=(UChar32)__b<<__shift; \
449 break; \
450 } else { \
451 (c)|=(UChar32)(__b&0x3f)<<__shift; \
452 ++__count; \
453 __shift+=6; \
454 } \
455 } \
456 } \
457 }
458
460 #define UTF8_BACK_1_UNSAFE(s, i) { \
461 while(UTF8_IS_TRAIL((s)[--(i)])) {} \
462 }
463
465 #define UTF8_BACK_N_UNSAFE(s, i, n) { \
466 int32_t __N=(n); \
467 while(__N>0) { \
468 UTF8_BACK_1_UNSAFE(s, i); \
469 --__N; \
470 } \
471 }
472
474 #define UTF8_SET_CHAR_LIMIT_UNSAFE(s, i) { \
475 UTF8_BACK_1_UNSAFE(s, i); \
476 UTF8_FWD_1_UNSAFE(s, i); \
477 }
478
480 #define UTF8_PREV_CHAR_SAFE(s, start, i, c, strict) { \
481 (c)=(s)[--(i)]; \
482 if((c)>=0x80) { \
483 if((c)<=0xbf) { \
484 (c)=utf8_prevCharSafeBody(s, start, &(i), c, strict); \
485 } else { \
486 (c)=UTF8_ERROR_VALUE_1; \
487 } \
488 } \
489 }
490
492 #define UTF8_BACK_1_SAFE(s, start, i) U8_BACK_1(s, start, i)
493
495 #define UTF8_BACK_N_SAFE(s, start, i, n) U8_BACK_N(s, start, i, n)
496
498 #define UTF8_SET_CHAR_LIMIT_SAFE(s, start, i, length) U8_SET_CP_LIMIT(s, start, i, length)
499
500 /* Formerly utf16.h --------------------------------------------------------- */
501
503 #define UTF_IS_FIRST_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xd800)
504
506 #define UTF_IS_SECOND_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xdc00)
507
509 #define UTF_IS_SURROGATE_FIRST(c) (((c)&0x400)==0)
510
512 #define UTF_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
513
515 #define UTF16_GET_PAIR_VALUE(first, second) \
516 (((first)<<10UL)+(second)-UTF_SURROGATE_OFFSET)
517
519 #define UTF_FIRST_SURROGATE(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
520
522 #define UTF_SECOND_SURROGATE(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
523
525 #define UTF16_LEAD(supplementary) UTF_FIRST_SURROGATE(supplementary)
526
528 #define UTF16_TRAIL(supplementary) UTF_SECOND_SURROGATE(supplementary)
529
531 #define UTF16_IS_SINGLE(uchar) !UTF_IS_SURROGATE(uchar)
532
534 #define UTF16_IS_LEAD(uchar) UTF_IS_FIRST_SURROGATE(uchar)
535
537 #define UTF16_IS_TRAIL(uchar) UTF_IS_SECOND_SURROGATE(uchar)
538
540 #define UTF16_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0xffff)
541
543 #define UTF16_CHAR_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)
544
546 #define UTF16_MAX_CHAR_LENGTH 2
547
549 #define UTF16_ARRAY_SIZE(size) (size)
550
562 #define UTF16_GET_CHAR_UNSAFE(s, i, c) { \
563 (c)=(s)[i]; \
564 if(UTF_IS_SURROGATE(c)) { \
565 if(UTF_IS_SURROGATE_FIRST(c)) { \
566 (c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)+1]); \
567 } else { \
568 (c)=UTF16_GET_PAIR_VALUE((s)[(i)-1], (c)); \
569 } \
570 } \
571 }
572
574 #define UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
575 (c)=(s)[i]; \
576 if(UTF_IS_SURROGATE(c)) { \
577 uint16_t __c2; \
578 if(UTF_IS_SURROGATE_FIRST(c)) { \
579 if((i)+1<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)+1])) { \
580 (c)=UTF16_GET_PAIR_VALUE((c), __c2); \
581 /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
582 } else if(strict) {\
583 /* unmatched first surrogate */ \
584 (c)=UTF_ERROR_VALUE; \
585 } \
586 } else { \
587 if((i)-1>=(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \
588 (c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \
589 /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
590 } else if(strict) {\
591 /* unmatched second surrogate */ \
592 (c)=UTF_ERROR_VALUE; \
593 } \
594 } \
595 } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
596 (c)=UTF_ERROR_VALUE; \
597 } \
598 }
599
601 #define UTF16_NEXT_CHAR_UNSAFE(s, i, c) { \
602 (c)=(s)[(i)++]; \
603 if(UTF_IS_FIRST_SURROGATE(c)) { \
604 (c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)++]); \
605 } \
606 }
607
609 #define UTF16_APPEND_CHAR_UNSAFE(s, i, c) { \
610 if((uint32_t)(c)<=0xffff) { \
611 (s)[(i)++]=(uint16_t)(c); \
612 } else { \
613 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
614 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
615 } \
616 }
617
619 #define UTF16_FWD_1_UNSAFE(s, i) { \
620 if(UTF_IS_FIRST_SURROGATE((s)[(i)++])) { \
621 ++(i); \
622 } \
623 }
624
626 #define UTF16_FWD_N_UNSAFE(s, i, n) { \
627 int32_t __N=(n); \
628 while(__N>0) { \
629 UTF16_FWD_1_UNSAFE(s, i); \
630 --__N; \
631 } \
632 }
633
635 #define UTF16_SET_CHAR_START_UNSAFE(s, i) { \
636 if(UTF_IS_SECOND_SURROGATE((s)[i])) { \
637 --(i); \
638 } \
639 }
640
642 #define UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
643 (c)=(s)[(i)++]; \
644 if(UTF_IS_FIRST_SURROGATE(c)) { \
645 uint16_t __c2; \
646 if((i)<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)])) { \
647 ++(i); \
648 (c)=UTF16_GET_PAIR_VALUE((c), __c2); \
649 /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
650 } else if(strict) {\
651 /* unmatched first surrogate */ \
652 (c)=UTF_ERROR_VALUE; \
653 } \
654 } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
655 /* unmatched second surrogate or other non-character */ \
656 (c)=UTF_ERROR_VALUE; \
657 } \
658 }
659
661 #define UTF16_APPEND_CHAR_SAFE(s, i, length, c) { \
662 if((uint32_t)(c)<=0xffff) { \
663 (s)[(i)++]=(uint16_t)(c); \
664 } else if((uint32_t)(c)<=0x10ffff) { \
665 if((i)+1<(length)) { \
666 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
667 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
668 } else /* not enough space */ { \
669 (s)[(i)++]=UTF_ERROR_VALUE; \
670 } \
671 } else /* c>0x10ffff, write error value */ { \
672 (s)[(i)++]=UTF_ERROR_VALUE; \
673 } \
674 }
675
677 #define UTF16_FWD_1_SAFE(s, i, length) U16_FWD_1(s, i, length)
678
680 #define UTF16_FWD_N_SAFE(s, i, length, n) U16_FWD_N(s, i, length, n)
681
683 #define UTF16_SET_CHAR_START_SAFE(s, start, i) U16_SET_CP_START(s, start, i)
684
686 #define UTF16_PREV_CHAR_UNSAFE(s, i, c) { \
687 (c)=(s)[--(i)]; \
688 if(UTF_IS_SECOND_SURROGATE(c)) { \
689 (c)=UTF16_GET_PAIR_VALUE((s)[--(i)], (c)); \
690 } \
691 }
692
694 #define UTF16_BACK_1_UNSAFE(s, i) { \
695 if(UTF_IS_SECOND_SURROGATE((s)[--(i)])) { \
696 --(i); \
697 } \
698 }
699
701 #define UTF16_BACK_N_UNSAFE(s, i, n) { \
702 int32_t __N=(n); \
703 while(__N>0) { \
704 UTF16_BACK_1_UNSAFE(s, i); \
705 --__N; \
706 } \
707 }
708
710 #define UTF16_SET_CHAR_LIMIT_UNSAFE(s, i) { \
711 if(UTF_IS_FIRST_SURROGATE((s)[(i)-1])) { \
712 ++(i); \
713 } \
714 }
715
717 #define UTF16_PREV_CHAR_SAFE(s, start, i, c, strict) { \
718 (c)=(s)[--(i)]; \
719 if(UTF_IS_SECOND_SURROGATE(c)) { \
720 uint16_t __c2; \
721 if((i)>(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \
722 --(i); \
723 (c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \
724 /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
725 } else if(strict) {\
726 /* unmatched second surrogate */ \
727 (c)=UTF_ERROR_VALUE; \
728 } \
729 } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
730 /* unmatched first surrogate or other non-character */ \
731 (c)=UTF_ERROR_VALUE; \
732 } \
733 }
734
736 #define UTF16_BACK_1_SAFE(s, start, i) U16_BACK_1(s, start, i)
737
739 #define UTF16_BACK_N_SAFE(s, start, i, n) U16_BACK_N(s, start, i, n)
740
742 #define UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length)
743
744 /* Formerly utf32.h --------------------------------------------------------- */
745
746 /*
747 * Old documentation:
748 *
749 * This file defines macros to deal with UTF-32 code units and code points.
750 * Signatures and semantics are the same as for the similarly named macros
751 * in utf16.h.
752 * utf32.h is included by utf.h after unicode/umachine.h</p>
753 * and some common definitions.
754 * <p><b>Usage:</b> ICU coding guidelines for if() statements should be followed when using these macros.
755 * Compound statements (curly braces {}) must be used for if-else-while...
756 * bodies and all macro statements should be terminated with semicolon.</p>
757 */
758
759 /* internal definitions ----------------------------------------------------- */
760
762 #define UTF32_IS_SAFE(c, strict) \
763 (!(strict) ? \
764 (uint32_t)(c)<=0x10ffff : \
765 UTF_IS_UNICODE_CHAR(c))
766
767 /*
768 * For the semantics of all of these macros, see utf16.h.
769 * The UTF-32 versions are trivial because any code point is
770 * encoded using exactly one code unit.
771 */
772
773 /* single-code point definitions -------------------------------------------- */
774
775 /* classes of code unit values */
776
778 #define UTF32_IS_SINGLE(uchar) 1
779
780 #define UTF32_IS_LEAD(uchar) 0
781
782 #define UTF32_IS_TRAIL(uchar) 0
783
784 /* number of code units per code point */
785
787 #define UTF32_NEED_MULTIPLE_UCHAR(c) 0
788
789 #define UTF32_CHAR_LENGTH(c) 1
790
791 #define UTF32_MAX_CHAR_LENGTH 1
792
793 /* average number of code units compared to UTF-16 */
794
796 #define UTF32_ARRAY_SIZE(size) (size)
797
799 #define UTF32_GET_CHAR_UNSAFE(s, i, c) { \
800 (c)=(s)[i]; \
801 }
802
804 #define UTF32_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
805 (c)=(s)[i]; \
806 if(!UTF32_IS_SAFE(c, strict)) { \
807 (c)=UTF_ERROR_VALUE; \
808 } \
809 }
810
811 /* definitions with forward iteration --------------------------------------- */
812
814 #define UTF32_NEXT_CHAR_UNSAFE(s, i, c) { \
815 (c)=(s)[(i)++]; \
816 }
817
819 #define UTF32_APPEND_CHAR_UNSAFE(s, i, c) { \
820 (s)[(i)++]=(c); \
821 }
822
824 #define UTF32_FWD_1_UNSAFE(s, i) { \
825 ++(i); \
826 }
827
829 #define UTF32_FWD_N_UNSAFE(s, i, n) { \
830 (i)+=(n); \
831 }
832
834 #define UTF32_SET_CHAR_START_UNSAFE(s, i) { \
835 }
836
838 #define UTF32_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
839 (c)=(s)[(i)++]; \
840 if(!UTF32_IS_SAFE(c, strict)) { \
841 (c)=UTF_ERROR_VALUE; \
842 } \
843 }
844
846 #define UTF32_APPEND_CHAR_SAFE(s, i, length, c) { \
847 if((uint32_t)(c)<=0x10ffff) { \
848 (s)[(i)++]=(c); \
849 } else /* c>0x10ffff, write 0xfffd */ { \
850 (s)[(i)++]=0xfffd; \
851 } \
852 }
853
855 #define UTF32_FWD_1_SAFE(s, i, length) { \
856 ++(i); \
857 }
858
860 #define UTF32_FWD_N_SAFE(s, i, length, n) { \
861 if(((i)+=(n))>(length)) { \
862 (i)=(length); \
863 } \
864 }
865
867 #define UTF32_SET_CHAR_START_SAFE(s, start, i) { \
868 }
869
870 /* definitions with backward iteration -------------------------------------- */
871
873 #define UTF32_PREV_CHAR_UNSAFE(s, i, c) { \
874 (c)=(s)[--(i)]; \
875 }
876
878 #define UTF32_BACK_1_UNSAFE(s, i) { \
879 --(i); \
880 }
881
883 #define UTF32_BACK_N_UNSAFE(s, i, n) { \
884 (i)-=(n); \
885 }
886
888 #define UTF32_SET_CHAR_LIMIT_UNSAFE(s, i) { \
889 }
890
892 #define UTF32_PREV_CHAR_SAFE(s, start, i, c, strict) { \
893 (c)=(s)[--(i)]; \
894 if(!UTF32_IS_SAFE(c, strict)) { \
895 (c)=UTF_ERROR_VALUE; \
896 } \
897 }
898
900 #define UTF32_BACK_1_SAFE(s, start, i) { \
901 --(i); \
902 }
903
905 #define UTF32_BACK_N_SAFE(s, start, i, n) { \
906 (i)-=(n); \
907 if((i)<(start)) { \
908 (i)=(start); \
909 } \
910 }
911
913 #define UTF32_SET_CHAR_LIMIT_SAFE(s, i, length) { \
914 }
915
916 /* Formerly utf.h, part 2 --------------------------------------------------- */
917
923 #define UTF_ARRAY_SIZE(size) UTF16_ARRAY_SIZE(size)
924
926 #define UTF_GET_CHAR_UNSAFE(s, i, c) UTF16_GET_CHAR_UNSAFE(s, i, c)
927
929 #define UTF_GET_CHAR_SAFE(s, start, i, length, c, strict) UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict)
930
931
933 #define UTF_NEXT_CHAR_UNSAFE(s, i, c) UTF16_NEXT_CHAR_UNSAFE(s, i, c)
934
936 #define UTF_NEXT_CHAR_SAFE(s, i, length, c, strict) UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict)
937
938
940 #define UTF_APPEND_CHAR_UNSAFE(s, i, c) UTF16_APPEND_CHAR_UNSAFE(s, i, c)
941
943 #define UTF_APPEND_CHAR_SAFE(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c)
944
945
947 #define UTF_FWD_1_UNSAFE(s, i) UTF16_FWD_1_UNSAFE(s, i)
948
950 #define UTF_FWD_1_SAFE(s, i, length) UTF16_FWD_1_SAFE(s, i, length)
951
952
954 #define UTF_FWD_N_UNSAFE(s, i, n) UTF16_FWD_N_UNSAFE(s, i, n)
955
957 #define UTF_FWD_N_SAFE(s, i, length, n) UTF16_FWD_N_SAFE(s, i, length, n)
958
959
961 #define UTF_SET_CHAR_START_UNSAFE(s, i) UTF16_SET_CHAR_START_UNSAFE(s, i)
962
964 #define UTF_SET_CHAR_START_SAFE(s, start, i) UTF16_SET_CHAR_START_SAFE(s, start, i)
965
966
968 #define UTF_PREV_CHAR_UNSAFE(s, i, c) UTF16_PREV_CHAR_UNSAFE(s, i, c)
969
971 #define UTF_PREV_CHAR_SAFE(s, start, i, c, strict) UTF16_PREV_CHAR_SAFE(s, start, i, c, strict)
972
973
975 #define UTF_BACK_1_UNSAFE(s, i) UTF16_BACK_1_UNSAFE(s, i)
976
978 #define UTF_BACK_1_SAFE(s, start, i) UTF16_BACK_1_SAFE(s, start, i)
979
980
982 #define UTF_BACK_N_UNSAFE(s, i, n) UTF16_BACK_N_UNSAFE(s, i, n)
983
985 #define UTF_BACK_N_SAFE(s, start, i, n) UTF16_BACK_N_SAFE(s, start, i, n)
986
987
989 #define UTF_SET_CHAR_LIMIT_UNSAFE(s, i) UTF16_SET_CHAR_LIMIT_UNSAFE(s, i)
990
992 #define UTF_SET_CHAR_LIMIT_SAFE(s, start, i, length) UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length)
993
994 /* Define default macros (UTF-16 "safe") ------------------------------------ */
995
1001 #define UTF_IS_SINGLE(uchar) U16_IS_SINGLE(uchar)
1002
1008 #define UTF_IS_LEAD(uchar) U16_IS_LEAD(uchar)
1009
1015 #define UTF_IS_TRAIL(uchar) U16_IS_TRAIL(uchar)
1016
1022 #define UTF_NEED_MULTIPLE_UCHAR(c) UTF16_NEED_MULTIPLE_UCHAR(c)
1023
1029 #define UTF_CHAR_LENGTH(c) U16_LENGTH(c)
1030
1036 #define UTF_MAX_CHAR_LENGTH U16_MAX_LENGTH
1037
1047 #define UTF_GET_CHAR(s, start, i, length, c) U16_GET(s, start, i, length, c)
1048
1060 #define UTF_NEXT_CHAR(s, i, length, c) U16_NEXT(s, i, length, c)
1061
1073 #define UTF_APPEND_CHAR(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c)
1074
1084 #define UTF_FWD_1(s, i, length) U16_FWD_1(s, i, length)
1085
1095 #define UTF_FWD_N(s, i, length, n) U16_FWD_N(s, i, length, n)
1096
1111 #define UTF_SET_CHAR_START(s, start, i) U16_SET_CP_START(s, start, i)
1112
1124 #define UTF_PREV_CHAR(s, start, i, c) U16_PREV(s, start, i, c)
1125
1137 #define UTF_BACK_1(s, start, i) U16_BACK_1(s, start, i)
1138
1150 #define UTF_BACK_N(s, start, i, n) U16_BACK_N(s, start, i, n)
1151
1166 #define UTF_SET_CHAR_LIMIT(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length)
1167
1168 #endif /* U_HIDE_DEPRECATED_API */
1169
1170 #endif
1171
utf8.h
C API: 8-bit Unicode handling macros.
utf.h
C API: Code point macros.
utf16.h
C API: 16-bit Unicode handling macros.