ICU 60.2 60.2

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

- File List
- Globals

utf_old.h
Go to the documentation of this file.
1 // © 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: UTF-8
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
159 #ifndef U_HIDE_OBSOLETE_UTF_OLD_H
160 # define U_HIDE_OBSOLETE_UTF_OLD_H 0
161 #endif
162
163 #if !defined(U_HIDE_DEPRECATED_API) && !U_HIDE_OBSOLETE_UTF_OLD_H
164
165 #include "unicode/utf.h"
166 #include "unicode/utf8.h"
167 #include "unicode/utf16.h"
168
169 /* Formerly utf.h, part 1 --------------------------------------------------- */
170
171 #ifdef U_USE_UTF_DEPRECATES
172
179 typedef int32_t UTextOffset;
180 #endif
181
183 #define UTF_SIZE 16
184
191 #define UTF_SAFE
192
193 #undef UTF_UNSAFE
194
195 #undef UTF_STRICT
196
211 #define UTF8_ERROR_VALUE_1 0x15
212
218 #define UTF8_ERROR_VALUE_2 0x9f
219
226 #define UTF_ERROR_VALUE 0xffff
227
234 #define UTF_IS_ERROR(c) \
235 (((c)&0xfffe)==0xfffe || (c)==UTF8_ERROR_VALUE_1 || (c)==UTF8_ERROR_VALUE_2)
236
242 #define UTF_IS_VALID(c) \
243 (UTF_IS_UNICODE_CHAR(c) && \
244 (c)!=UTF8_ERROR_VALUE_1 && (c)!=UTF8_ERROR_VALUE_2)
245
250 #define UTF_IS_SURROGATE(uchar) (((uchar)&0xfffff800)==0xd800)
251
257 #define UTF_IS_UNICODE_NONCHAR(c) \
258 ((c)>=0xfdd0 && \
259 ((uint32_t)(c)<=0xfdef || ((c)&0xfffe)==0xfffe) && \
260 (uint32_t)(c)<=0x10ffff)
261
277 #define UTF_IS_UNICODE_CHAR(c) \
278 ((uint32_t)(c)<0xd800 || \
279 ((uint32_t)(c)>0xdfff && \
280 (uint32_t)(c)<=0x10ffff && \
281 !UTF_IS_UNICODE_NONCHAR(c)))
282
283 /* Formerly utf8.h ---------------------------------------------------------- */
284
296 #ifdef U_UTF8_IMPL
297 // No forward declaration if compiling utf_impl.cpp, which defines utf8_countTrailBytes.
298 #elif defined(U_STATIC_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION)
299 U_CFUNC const uint8_t utf8_countTrailBytes[];
300 #else
301 U_CFUNC U_IMPORT const uint8_t utf8_countTrailBytes[]; /* U_IMPORT2? */ /*U_IMPORT*/
302 #endif
303
308 #define UTF8_COUNT_TRAIL_BYTES(leadByte) (utf8_countTrailBytes[(uint8_t)leadByte])
309
314 #define UTF8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1)
315
317 #define UTF8_IS_SINGLE(uchar) (((uchar)&0x80)==0)
318
319 #define UTF8_IS_LEAD(uchar) ((uint8_t)((uchar)-0xc0)<0x3e)
320
321 #define UTF8_IS_TRAIL(uchar) (((uchar)&0xc0)==0x80)
322
324 #define UTF8_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0x7f)
325
339 #if 1
340 # define UTF8_CHAR_LENGTH(c) \
341 ((uint32_t)(c)<=0x7f ? 1 : \
342 ((uint32_t)(c)<=0x7ff ? 2 : \
343 ((uint32_t)((c)-0x10000)>0xfffff ? 3 : 4) \
344 ) \
345 )
346 #else
347 # define UTF8_CHAR_LENGTH(c) \
348 ((uint32_t)(c)<=0x7f ? 1 : \
349 ((uint32_t)(c)<=0x7ff ? 2 : \
350 ((uint32_t)(c)<=0xffff ? 3 : \
351 ((uint32_t)(c)<=0x10ffff ? 4 : \
352 ((uint32_t)(c)<=0x3ffffff ? 5 : \
353 ((uint32_t)(c)<=0x7fffffff ? 6 : 3) \
354 ) \
355 ) \
356 ) \
357 ) \
358 )
359 #endif
360
362 #define UTF8_MAX_CHAR_LENGTH 4
363
365 #define UTF8_ARRAY_SIZE(size) ((5*(size))/2)
366
368 #define UTF8_GET_CHAR_UNSAFE(s, i, c) { \
369 int32_t _utf8_get_char_unsafe_index=(int32_t)(i); \
370 UTF8_SET_CHAR_START_UNSAFE(s, _utf8_get_char_unsafe_index); \
371 UTF8_NEXT_CHAR_UNSAFE(s, _utf8_get_char_unsafe_index, c); \
372 }
373
375 #define UTF8_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
376 int32_t _utf8_get_char_safe_index=(int32_t)(i); \
377 UTF8_SET_CHAR_START_SAFE(s, start, _utf8_get_char_safe_index); \
378 UTF8_NEXT_CHAR_SAFE(s, _utf8_get_char_safe_index, length, c, strict); \
379 }
380
382 #define UTF8_NEXT_CHAR_UNSAFE(s, i, c) { \
383 (c)=(s)[(i)++]; \
384 if((uint8_t)((c)-0xc0)<0x35) { \
385 uint8_t __count=UTF8_COUNT_TRAIL_BYTES(c); \
386 UTF8_MASK_LEAD_BYTE(c, __count); \
387 switch(__count) { \
388 /* each following branch falls through to the next one */ \
389 case 3: \
390 (c)=((c)<<6)|((s)[(i)++]&0x3f); \
391 case 2: \
392 (c)=((c)<<6)|((s)[(i)++]&0x3f); \
393 case 1: \
394 (c)=((c)<<6)|((s)[(i)++]&0x3f); \
395 /* no other branches to optimize switch() */ \
396 break; \
397 } \
398 } \
399 }
400
402 #define UTF8_APPEND_CHAR_UNSAFE(s, i, c) { \
403 if((uint32_t)(c)<=0x7f) { \
404 (s)[(i)++]=(uint8_t)(c); \
405 } else { \
406 if((uint32_t)(c)<=0x7ff) { \
407 (s)[(i)++]=(uint8_t)(((c)>>6)|0xc0); \
408 } else { \
409 if((uint32_t)(c)<=0xffff) { \
410 (s)[(i)++]=(uint8_t)(((c)>>12)|0xe0); \
411 } else { \
412 (s)[(i)++]=(uint8_t)(((c)>>18)|0xf0); \
413 (s)[(i)++]=(uint8_t)((((c)>>12)&0x3f)|0x80); \
414 } \
415 (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80); \
416 } \
417 (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \
418 } \
419 }
420
422 #define UTF8_FWD_1_UNSAFE(s, i) { \
423 (i)+=1+UTF8_COUNT_TRAIL_BYTES((s)[i]); \
424 }
425
427 #define UTF8_FWD_N_UNSAFE(s, i, n) { \
428 int32_t __N=(n); \
429 while(__N>0) { \
430 UTF8_FWD_1_UNSAFE(s, i); \
431 --__N; \
432 } \
433 }
434
436 #define UTF8_SET_CHAR_START_UNSAFE(s, i) { \
437 while(UTF8_IS_TRAIL((s)[i])) { --(i); } \
438 }
439
441 #define UTF8_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
442 (c)=(s)[(i)++]; \
443 if((c)>=0x80) { \
444 if(UTF8_IS_LEAD(c)) { \
445 (c)=utf8_nextCharSafeBody(s, &(i), (int32_t)(length), c, strict); \
446 } else { \
447 (c)=UTF8_ERROR_VALUE_1; \
448 } \
449 } \
450 }
451
453 #define UTF8_APPEND_CHAR_SAFE(s, i, length, c) { \
454 if((uint32_t)(c)<=0x7f) { \
455 (s)[(i)++]=(uint8_t)(c); \
456 } else { \
457 (i)=utf8_appendCharSafeBody(s, (int32_t)(i), (int32_t)(length), c, NULL); \
458 } \
459 }
460
462 #define UTF8_FWD_1_SAFE(s, i, length) U8_FWD_1(s, i, length)
463
465 #define UTF8_FWD_N_SAFE(s, i, length, n) U8_FWD_N(s, i, length, n)
466
468 #define UTF8_SET_CHAR_START_SAFE(s, start, i) U8_SET_CP_START(s, start, i)
469
471 #define UTF8_PREV_CHAR_UNSAFE(s, i, c) { \
472 (c)=(s)[--(i)]; \
473 if(UTF8_IS_TRAIL(c)) { \
474 uint8_t __b, __count=1, __shift=6; \
475 \
476 /* c is a trail byte */ \
477 (c)&=0x3f; \
478 for(;;) { \
479 __b=(s)[--(i)]; \
480 if(__b>=0xc0) { \
481 UTF8_MASK_LEAD_BYTE(__b, __count); \
482 (c)|=(UChar32)__b<<__shift; \
483 break; \
484 } else { \
485 (c)|=(UChar32)(__b&0x3f)<<__shift; \
486 ++__count; \
487 __shift+=6; \
488 } \
489 } \
490 } \
491 }
492
494 #define UTF8_BACK_1_UNSAFE(s, i) { \
495 while(UTF8_IS_TRAIL((s)[--(i)])) {} \
496 }
497
499 #define UTF8_BACK_N_UNSAFE(s, i, n) { \
500 int32_t __N=(n); \
501 while(__N>0) { \
502 UTF8_BACK_1_UNSAFE(s, i); \
503 --__N; \
504 } \
505 }
506
508 #define UTF8_SET_CHAR_LIMIT_UNSAFE(s, i) { \
509 UTF8_BACK_1_UNSAFE(s, i); \
510 UTF8_FWD_1_UNSAFE(s, i); \
511 }
512
514 #define UTF8_PREV_CHAR_SAFE(s, start, i, c, strict) { \
515 (c)=(s)[--(i)]; \
516 if((c)>=0x80) { \
517 if((c)<=0xbf) { \
518 (c)=utf8_prevCharSafeBody(s, start, &(i), c, strict); \
519 } else { \
520 (c)=UTF8_ERROR_VALUE_1; \
521 } \
522 } \
523 }
524
526 #define UTF8_BACK_1_SAFE(s, start, i) U8_BACK_1(s, start, i)
527
529 #define UTF8_BACK_N_SAFE(s, start, i, n) U8_BACK_N(s, start, i, n)
530
532 #define UTF8_SET_CHAR_LIMIT_SAFE(s, start, i, length) U8_SET_CP_LIMIT(s, start, i, length)
533
534 /* Formerly utf16.h --------------------------------------------------------- */
535
537 #define UTF_IS_FIRST_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xd800)
538
540 #define UTF_IS_SECOND_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xdc00)
541
543 #define UTF_IS_SURROGATE_FIRST(c) (((c)&0x400)==0)
544
546 #define UTF_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
547
549 #define UTF16_GET_PAIR_VALUE(first, second) \
550 (((first)<<10UL)+(second)-UTF_SURROGATE_OFFSET)
551
553 #define UTF_FIRST_SURROGATE(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
554
556 #define UTF_SECOND_SURROGATE(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
557
559 #define UTF16_LEAD(supplementary) UTF_FIRST_SURROGATE(supplementary)
560
562 #define UTF16_TRAIL(supplementary) UTF_SECOND_SURROGATE(supplementary)
563
565 #define UTF16_IS_SINGLE(uchar) !UTF_IS_SURROGATE(uchar)
566
568 #define UTF16_IS_LEAD(uchar) UTF_IS_FIRST_SURROGATE(uchar)
569
571 #define UTF16_IS_TRAIL(uchar) UTF_IS_SECOND_SURROGATE(uchar)
572
574 #define UTF16_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0xffff)
575
577 #define UTF16_CHAR_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)
578
580 #define UTF16_MAX_CHAR_LENGTH 2
581
583 #define UTF16_ARRAY_SIZE(size) (size)
584
596 #define UTF16_GET_CHAR_UNSAFE(s, i, c) { \
597 (c)=(s)[i]; \
598 if(UTF_IS_SURROGATE(c)) { \
599 if(UTF_IS_SURROGATE_FIRST(c)) { \
600 (c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)+1]); \
601 } else { \
602 (c)=UTF16_GET_PAIR_VALUE((s)[(i)-1], (c)); \
603 } \
604 } \
605 }
606
608 #define UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
609 (c)=(s)[i]; \
610 if(UTF_IS_SURROGATE(c)) { \
611 uint16_t __c2; \
612 if(UTF_IS_SURROGATE_FIRST(c)) { \
613 if((i)+1<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)+1])) { \
614 (c)=UTF16_GET_PAIR_VALUE((c), __c2); \
615 /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
616 } else if(strict) {\
617 /* unmatched first surrogate */ \
618 (c)=UTF_ERROR_VALUE; \
619 } \
620 } else { \
621 if((i)-1>=(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \
622 (c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \
623 /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
624 } else if(strict) {\
625 /* unmatched second surrogate */ \
626 (c)=UTF_ERROR_VALUE; \
627 } \
628 } \
629 } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
630 (c)=UTF_ERROR_VALUE; \
631 } \
632 }
633
635 #define UTF16_NEXT_CHAR_UNSAFE(s, i, c) { \
636 (c)=(s)[(i)++]; \
637 if(UTF_IS_FIRST_SURROGATE(c)) { \
638 (c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)++]); \
639 } \
640 }
641
643 #define UTF16_APPEND_CHAR_UNSAFE(s, i, c) { \
644 if((uint32_t)(c)<=0xffff) { \
645 (s)[(i)++]=(uint16_t)(c); \
646 } else { \
647 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
648 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
649 } \
650 }
651
653 #define UTF16_FWD_1_UNSAFE(s, i) { \
654 if(UTF_IS_FIRST_SURROGATE((s)[(i)++])) { \
655 ++(i); \
656 } \
657 }
658
660 #define UTF16_FWD_N_UNSAFE(s, i, n) { \
661 int32_t __N=(n); \
662 while(__N>0) { \
663 UTF16_FWD_1_UNSAFE(s, i); \
664 --__N; \
665 } \
666 }
667
669 #define UTF16_SET_CHAR_START_UNSAFE(s, i) { \
670 if(UTF_IS_SECOND_SURROGATE((s)[i])) { \
671 --(i); \
672 } \
673 }
674
676 #define UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
677 (c)=(s)[(i)++]; \
678 if(UTF_IS_FIRST_SURROGATE(c)) { \
679 uint16_t __c2; \
680 if((i)<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)])) { \
681 ++(i); \
682 (c)=UTF16_GET_PAIR_VALUE((c), __c2); \
683 /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
684 } else if(strict) {\
685 /* unmatched first surrogate */ \
686 (c)=UTF_ERROR_VALUE; \
687 } \
688 } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
689 /* unmatched second surrogate or other non-character */ \
690 (c)=UTF_ERROR_VALUE; \
691 } \
692 }
693
695 #define UTF16_APPEND_CHAR_SAFE(s, i, length, c) { \
696 if((uint32_t)(c)<=0xffff) { \
697 (s)[(i)++]=(uint16_t)(c); \
698 } else if((uint32_t)(c)<=0x10ffff) { \
699 if((i)+1<(length)) { \
700 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
701 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
702 } else /* not enough space */ { \
703 (s)[(i)++]=UTF_ERROR_VALUE; \
704 } \
705 } else /* c>0x10ffff, write error value */ { \
706 (s)[(i)++]=UTF_ERROR_VALUE; \
707 } \
708 }
709
711 #define UTF16_FWD_1_SAFE(s, i, length) U16_FWD_1(s, i, length)
712
714 #define UTF16_FWD_N_SAFE(s, i, length, n) U16_FWD_N(s, i, length, n)
715
717 #define UTF16_SET_CHAR_START_SAFE(s, start, i) U16_SET_CP_START(s, start, i)
718
720 #define UTF16_PREV_CHAR_UNSAFE(s, i, c) { \
721 (c)=(s)[--(i)]; \
722 if(UTF_IS_SECOND_SURROGATE(c)) { \
723 (c)=UTF16_GET_PAIR_VALUE((s)[--(i)], (c)); \
724 } \
725 }
726
728 #define UTF16_BACK_1_UNSAFE(s, i) { \
729 if(UTF_IS_SECOND_SURROGATE((s)[--(i)])) { \
730 --(i); \
731 } \
732 }
733
735 #define UTF16_BACK_N_UNSAFE(s, i, n) { \
736 int32_t __N=(n); \
737 while(__N>0) { \
738 UTF16_BACK_1_UNSAFE(s, i); \
739 --__N; \
740 } \
741 }
742
744 #define UTF16_SET_CHAR_LIMIT_UNSAFE(s, i) { \
745 if(UTF_IS_FIRST_SURROGATE((s)[(i)-1])) { \
746 ++(i); \
747 } \
748 }
749
751 #define UTF16_PREV_CHAR_SAFE(s, start, i, c, strict) { \
752 (c)=(s)[--(i)]; \
753 if(UTF_IS_SECOND_SURROGATE(c)) { \
754 uint16_t __c2; \
755 if((i)>(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \
756 --(i); \
757 (c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \
758 /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
759 } else if(strict) {\
760 /* unmatched second surrogate */ \
761 (c)=UTF_ERROR_VALUE; \
762 } \
763 } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
764 /* unmatched first surrogate or other non-character */ \
765 (c)=UTF_ERROR_VALUE; \
766 } \
767 }
768
770 #define UTF16_BACK_1_SAFE(s, start, i) U16_BACK_1(s, start, i)
771
773 #define UTF16_BACK_N_SAFE(s, start, i, n) U16_BACK_N(s, start, i, n)
774
776 #define UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length)
777
778 /* Formerly utf32.h --------------------------------------------------------- */
779
780 /*
781 * Old documentation:
782 *
783 * This file defines macros to deal with UTF-32 code units and code points.
784 * Signatures and semantics are the same as for the similarly named macros
785 * in utf16.h.
786 * utf32.h is included by utf.h after unicode/umachine.h</p>
787 * and some common definitions.
788 * <p><b>Usage:</b> ICU coding guidelines for if() statements should be followed when using these macros.
789 * Compound statements (curly braces {}) must be used for if-else-while...
790 * bodies and all macro statements should be terminated with semicolon.</p>
791 */
792
793 /* internal definitions ----------------------------------------------------- */
794
796 #define UTF32_IS_SAFE(c, strict) \
797 (!(strict) ? \
798 (uint32_t)(c)<=0x10ffff : \
799 UTF_IS_UNICODE_CHAR(c))
800
801 /*
802 * For the semantics of all of these macros, see utf16.h.
803 * The UTF-32 versions are trivial because any code point is
804 * encoded using exactly one code unit.
805 */
806
807 /* single-code point definitions -------------------------------------------- */
808
809 /* classes of code unit values */
810
812 #define UTF32_IS_SINGLE(uchar) 1
813
814 #define UTF32_IS_LEAD(uchar) 0
815
816 #define UTF32_IS_TRAIL(uchar) 0
817
818 /* number of code units per code point */
819
821 #define UTF32_NEED_MULTIPLE_UCHAR(c) 0
822
823 #define UTF32_CHAR_LENGTH(c) 1
824
825 #define UTF32_MAX_CHAR_LENGTH 1
826
827 /* average number of code units compared to UTF-16 */
828
830 #define UTF32_ARRAY_SIZE(size) (size)
831
833 #define UTF32_GET_CHAR_UNSAFE(s, i, c) { \
834 (c)=(s)[i]; \
835 }
836
838 #define UTF32_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
839 (c)=(s)[i]; \
840 if(!UTF32_IS_SAFE(c, strict)) { \
841 (c)=UTF_ERROR_VALUE; \
842 } \
843 }
844
845 /* definitions with forward iteration --------------------------------------- */
846
848 #define UTF32_NEXT_CHAR_UNSAFE(s, i, c) { \
849 (c)=(s)[(i)++]; \
850 }
851
853 #define UTF32_APPEND_CHAR_UNSAFE(s, i, c) { \
854 (s)[(i)++]=(c); \
855 }
856
858 #define UTF32_FWD_1_UNSAFE(s, i) { \
859 ++(i); \
860 }
861
863 #define UTF32_FWD_N_UNSAFE(s, i, n) { \
864 (i)+=(n); \
865 }
866
868 #define UTF32_SET_CHAR_START_UNSAFE(s, i) { \
869 }
870
872 #define UTF32_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
873 (c)=(s)[(i)++]; \
874 if(!UTF32_IS_SAFE(c, strict)) { \
875 (c)=UTF_ERROR_VALUE; \
876 } \
877 }
878
880 #define UTF32_APPEND_CHAR_SAFE(s, i, length, c) { \
881 if((uint32_t)(c)<=0x10ffff) { \
882 (s)[(i)++]=(c); \
883 } else /* c>0x10ffff, write 0xfffd */ { \
884 (s)[(i)++]=0xfffd; \
885 } \
886 }
887
889 #define UTF32_FWD_1_SAFE(s, i, length) { \
890 ++(i); \
891 }
892
894 #define UTF32_FWD_N_SAFE(s, i, length, n) { \
895 if(((i)+=(n))>(length)) { \
896 (i)=(length); \
897 } \
898 }
899
901 #define UTF32_SET_CHAR_START_SAFE(s, start, i) { \
902 }
903
904 /* definitions with backward iteration -------------------------------------- */
905
907 #define UTF32_PREV_CHAR_UNSAFE(s, i, c) { \
908 (c)=(s)[--(i)]; \
909 }
910
912 #define UTF32_BACK_1_UNSAFE(s, i) { \
913 --(i); \
914 }
915
917 #define UTF32_BACK_N_UNSAFE(s, i, n) { \
918 (i)-=(n); \
919 }
920
922 #define UTF32_SET_CHAR_LIMIT_UNSAFE(s, i) { \
923 }
924
926 #define UTF32_PREV_CHAR_SAFE(s, start, i, c, strict) { \
927 (c)=(s)[--(i)]; \
928 if(!UTF32_IS_SAFE(c, strict)) { \
929 (c)=UTF_ERROR_VALUE; \
930 } \
931 }
932
934 #define UTF32_BACK_1_SAFE(s, start, i) { \
935 --(i); \
936 }
937
939 #define UTF32_BACK_N_SAFE(s, start, i, n) { \
940 (i)-=(n); \
941 if((i)<(start)) { \
942 (i)=(start); \
943 } \
944 }
945
947 #define UTF32_SET_CHAR_LIMIT_SAFE(s, i, length) { \
948 }
949
950 /* Formerly utf.h, part 2 --------------------------------------------------- */
951
957 #define UTF_ARRAY_SIZE(size) UTF16_ARRAY_SIZE(size)
958
960 #define UTF_GET_CHAR_UNSAFE(s, i, c) UTF16_GET_CHAR_UNSAFE(s, i, c)
961
963 #define UTF_GET_CHAR_SAFE(s, start, i, length, c, strict) UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict)
964
965
967 #define UTF_NEXT_CHAR_UNSAFE(s, i, c) UTF16_NEXT_CHAR_UNSAFE(s, i, c)
968
970 #define UTF_NEXT_CHAR_SAFE(s, i, length, c, strict) UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict)
971
972
974 #define UTF_APPEND_CHAR_UNSAFE(s, i, c) UTF16_APPEND_CHAR_UNSAFE(s, i, c)
975
977 #define UTF_APPEND_CHAR_SAFE(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c)
978
979
981 #define UTF_FWD_1_UNSAFE(s, i) UTF16_FWD_1_UNSAFE(s, i)
982
984 #define UTF_FWD_1_SAFE(s, i, length) UTF16_FWD_1_SAFE(s, i, length)
985
986
988 #define UTF_FWD_N_UNSAFE(s, i, n) UTF16_FWD_N_UNSAFE(s, i, n)
989
991 #define UTF_FWD_N_SAFE(s, i, length, n) UTF16_FWD_N_SAFE(s, i, length, n)
992
993
995 #define UTF_SET_CHAR_START_UNSAFE(s, i) UTF16_SET_CHAR_START_UNSAFE(s, i)
996
998 #define UTF_SET_CHAR_START_SAFE(s, start, i) UTF16_SET_CHAR_START_SAFE(s, start, i)
999
1000
1002 #define UTF_PREV_CHAR_UNSAFE(s, i, c) UTF16_PREV_CHAR_UNSAFE(s, i, c)
1003
1005 #define UTF_PREV_CHAR_SAFE(s, start, i, c, strict) UTF16_PREV_CHAR_SAFE(s, start, i, c, strict)
1006
1007
1009 #define UTF_BACK_1_UNSAFE(s, i) UTF16_BACK_1_UNSAFE(s, i)
1010
1012 #define UTF_BACK_1_SAFE(s, start, i) UTF16_BACK_1_SAFE(s, start, i)
1013
1014
1016 #define UTF_BACK_N_UNSAFE(s, i, n) UTF16_BACK_N_UNSAFE(s, i, n)
1017
1019 #define UTF_BACK_N_SAFE(s, start, i, n) UTF16_BACK_N_SAFE(s, start, i, n)
1020
1021
1023 #define UTF_SET_CHAR_LIMIT_UNSAFE(s, i) UTF16_SET_CHAR_LIMIT_UNSAFE(s, i)
1024
1026 #define UTF_SET_CHAR_LIMIT_SAFE(s, start, i, length) UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length)
1027
1028 /* Define default macros (UTF-16 "safe") ------------------------------------ */
1029
1035 #define UTF_IS_SINGLE(uchar) U16_IS_SINGLE(uchar)
1036
1042 #define UTF_IS_LEAD(uchar) U16_IS_LEAD(uchar)
1043
1049 #define UTF_IS_TRAIL(uchar) U16_IS_TRAIL(uchar)
1050
1056 #define UTF_NEED_MULTIPLE_UCHAR(c) UTF16_NEED_MULTIPLE_UCHAR(c)
1057
1063 #define UTF_CHAR_LENGTH(c) U16_LENGTH(c)
1064
1070 #define UTF_MAX_CHAR_LENGTH U16_MAX_LENGTH
1071
1081 #define UTF_GET_CHAR(s, start, i, length, c) U16_GET(s, start, i, length, c)
1082
1094 #define UTF_NEXT_CHAR(s, i, length, c) U16_NEXT(s, i, length, c)
1095
1107 #define UTF_APPEND_CHAR(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c)
1108
1118 #define UTF_FWD_1(s, i, length) U16_FWD_1(s, i, length)
1119
1129 #define UTF_FWD_N(s, i, length, n) U16_FWD_N(s, i, length, n)
1130
1145 #define UTF_SET_CHAR_START(s, start, i) U16_SET_CP_START(s, start, i)
1146
1158 #define UTF_PREV_CHAR(s, start, i, c) U16_PREV(s, start, i, c)
1159
1171 #define UTF_BACK_1(s, start, i) U16_BACK_1(s, start, i)
1172
1184 #define UTF_BACK_N(s, start, i, n) U16_BACK_N(s, start, i, n)
1185
1200 #define UTF_SET_CHAR_LIMIT(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length)
1201
1202 #endif // !U_HIDE_DEPRECATED_API && !U_HIDE_OBSOLETE_UTF_OLD_H
1203
1204 #endif
U_IMPORT
#define U_IMPORT
Definition: platform.h:825
utf8.h
C API: 8-bit Unicode handling macros.
utf8_countTrailBytes
U_CFUNC U_IMPORT const uint8_t utf8_countTrailBytes[]
Internal array with numbers of trail bytes for any given byte used in lead byte position.
Definition: utf_old.h:301
utf.h
C API: Code point macros.
U_CFUNC
#define U_CFUNC
This is used in a declaration of a library private ICU C function.
Definition: umachine.h:83
utf16.h
C API: 16-bit Unicode handling macros.