50 #define U16_IS_SINGLE(c) !U_IS_SURROGATE(c)
58 #define U16_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)
66 #define U16_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)
74 #define U16_IS_SURROGATE(c) U_IS_SURROGATE(c)
83 #define U16_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)
92 #define U16_IS_SURROGATE_TRAIL(c) (((c)&0x400)!=0)
98 #define U16_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
111 #define U16_GET_SUPPLEMENTARY(lead, trail) \
112 (((UChar32)(lead)<<10UL)+(UChar32)(trail)-U16_SURROGATE_OFFSET)
122 #define U16_LEAD(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
131 #define U16_TRAIL(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
140 #define U16_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)
147 #define U16_MAX_LENGTH 2
166 #define U16_GET_UNSAFE(s, i, c) { \
168 if(U16_IS_SURROGATE(c)) { \
169 if(U16_IS_SURROGATE_LEAD(c)) { \
170 (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)+1]); \
172 (c)=U16_GET_SUPPLEMENTARY((s)[(i)-1], (c)); \
200 #define U16_GET(s, start, i, length, c) { \
202 if(U16_IS_SURROGATE(c)) { \
204 if(U16_IS_SURROGATE_LEAD(c)) { \
205 if((i)+1!=(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \
206 (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
209 if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
210 (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
216 #ifndef U_HIDE_DRAFT_API
241 #define U16_GET_OR_FFFD(s, start, i, length, c) { \
243 if(U16_IS_SURROGATE(c)) { \
245 if(U16_IS_SURROGATE_LEAD(c)) { \
246 if((i)+1!=(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \
247 (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
252 if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
253 (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
261 #endif // U_HIDE_DRAFT_API
284 #define U16_NEXT_UNSAFE(s, i, c) { \
286 if(U16_IS_LEAD(c)) { \
287 (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)++]); \
312 #define U16_NEXT(s, i, length, c) { \
314 if(U16_IS_LEAD(c)) { \
316 if((i)!=(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \
318 (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
323 #ifndef U_HIDE_DRAFT_API
346 #define U16_NEXT_OR_FFFD(s, i, length, c) { \
348 if(U16_IS_SURROGATE(c)) { \
350 if(U16_IS_SURROGATE_LEAD(c) && (i)!=(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \
352 (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
359 #endif // U_HIDE_DRAFT_API
374 #define U16_APPEND_UNSAFE(s, i, c) { \
375 if((uint32_t)(c)<=0xffff) { \
376 (s)[(i)++]=(uint16_t)(c); \
378 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
379 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
400 #define U16_APPEND(s, i, capacity, c, isError) { \
401 if((uint32_t)(c)<=0xffff) { \
402 (s)[(i)++]=(uint16_t)(c); \
403 } else if((uint32_t)(c)<=0x10ffff && (i)+1<(capacity)) { \
404 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
405 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
421 #define U16_FWD_1_UNSAFE(s, i) { \
422 if(U16_IS_LEAD((s)[(i)++])) { \
440 #define U16_FWD_1(s, i, length) { \
441 if(U16_IS_LEAD((s)[(i)++]) && (i)!=(length) && U16_IS_TRAIL((s)[i])) { \
458 #define U16_FWD_N_UNSAFE(s, i, n) { \
461 U16_FWD_1_UNSAFE(s, i); \
481 #define U16_FWD_N(s, i, length, n) { \
483 while(__N>0 && ((i)<(length) || ((length)<0 && (s)[i]!=0))) { \
484 U16_FWD_1(s, i, length); \
502 #define U16_SET_CP_START_UNSAFE(s, i) { \
503 if(U16_IS_TRAIL((s)[i])) { \
522 #define U16_SET_CP_START(s, start, i) { \
523 if(U16_IS_TRAIL((s)[i]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
550 #define U16_PREV_UNSAFE(s, i, c) { \
552 if(U16_IS_TRAIL(c)) { \
553 (c)=U16_GET_SUPPLEMENTARY((s)[--(i)], (c)); \
577 #define U16_PREV(s, start, i, c) { \
579 if(U16_IS_TRAIL(c)) { \
581 if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
583 (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
588 #ifndef U_HIDE_DRAFT_API
610 #define U16_PREV_OR_FFFD(s, start, i, c) { \
612 if(U16_IS_SURROGATE(c)) { \
614 if(U16_IS_SURROGATE_TRAIL(c) && (i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
616 (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
623 #endif // U_HIDE_DRAFT_API
636 #define U16_BACK_1_UNSAFE(s, i) { \
637 if(U16_IS_TRAIL((s)[--(i)])) { \
654 #define U16_BACK_1(s, start, i) { \
655 if(U16_IS_TRAIL((s)[--(i)]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
673 #define U16_BACK_N_UNSAFE(s, i, n) { \
676 U16_BACK_1_UNSAFE(s, i); \
695 #define U16_BACK_N(s, start, i, n) { \
697 while(__N>0 && (i)>(start)) { \
698 U16_BACK_1(s, start, i); \
716 #define U16_SET_CP_LIMIT_UNSAFE(s, i) { \
717 if(U16_IS_LEAD((s)[(i)-1])) { \
739 #define U16_SET_CP_LIMIT(s, start, i, length) { \
740 if((start)<(i) && ((i)<(length) || (length)<0) && U16_IS_LEAD((s)[(i)-1]) && U16_IS_TRAIL((s)[i])) { \
Basic types and constants for UTF.
C API: Code point macros.