48 #define U16_IS_SINGLE(c) !U_IS_SURROGATE(c)
56 #define U16_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)
64 #define U16_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)
72 #define U16_IS_SURROGATE(c) U_IS_SURROGATE(c)
81 #define U16_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)
90 #define U16_IS_SURROGATE_TRAIL(c) (((c)&0x400)!=0)
96 #define U16_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
109 #define U16_GET_SUPPLEMENTARY(lead, trail) \
110 (((UChar32)(lead)<<10UL)+(UChar32)(trail)-U16_SURROGATE_OFFSET)
120 #define U16_LEAD(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
129 #define U16_TRAIL(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
138 #define U16_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)
145 #define U16_MAX_LENGTH 2
164 #define U16_GET_UNSAFE(s, i, c) { \
166 if(U16_IS_SURROGATE(c)) { \
167 if(U16_IS_SURROGATE_LEAD(c)) { \
168 (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)+1]); \
170 (c)=U16_GET_SUPPLEMENTARY((s)[(i)-1], (c)); \
195 #define U16_GET(s, start, i, length, c) { \
197 if(U16_IS_SURROGATE(c)) { \
199 if(U16_IS_SURROGATE_LEAD(c)) { \
200 if((i)+1<(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \
201 (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
204 if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
205 (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
232 #define U16_NEXT_UNSAFE(s, i, c) { \
234 if(U16_IS_LEAD(c)) { \
235 (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)++]); \
259 #define U16_NEXT(s, i, length, c) { \
261 if(U16_IS_LEAD(c)) { \
263 if((i)<(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \
265 (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
283 #define U16_APPEND_UNSAFE(s, i, c) { \
284 if((uint32_t)(c)<=0xffff) { \
285 (s)[(i)++]=(uint16_t)(c); \
287 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
288 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
309 #define U16_APPEND(s, i, capacity, c, isError) { \
310 if((uint32_t)(c)<=0xffff) { \
311 (s)[(i)++]=(uint16_t)(c); \
312 } else if((uint32_t)(c)<=0x10ffff && (i)+1<(capacity)) { \
313 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
314 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
330 #define U16_FWD_1_UNSAFE(s, i) { \
331 if(U16_IS_LEAD((s)[(i)++])) { \
347 #define U16_FWD_1(s, i, length) { \
348 if(U16_IS_LEAD((s)[(i)++]) && (i)<(length) && U16_IS_TRAIL((s)[i])) { \
365 #define U16_FWD_N_UNSAFE(s, i, n) { \
368 U16_FWD_1_UNSAFE(s, i); \
386 #define U16_FWD_N(s, i, length, n) { \
388 while(__N>0 && (i)<(length)) { \
389 U16_FWD_1(s, i, length); \
407 #define U16_SET_CP_START_UNSAFE(s, i) { \
408 if(U16_IS_TRAIL((s)[i])) { \
427 #define U16_SET_CP_START(s, start, i) { \
428 if(U16_IS_TRAIL((s)[i]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
455 #define U16_PREV_UNSAFE(s, i, c) { \
457 if(U16_IS_TRAIL(c)) { \
458 (c)=U16_GET_SUPPLEMENTARY((s)[--(i)], (c)); \
483 #define U16_PREV(s, start, i, c) { \
485 if(U16_IS_TRAIL(c)) { \
487 if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
489 (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
505 #define U16_BACK_1_UNSAFE(s, i) { \
506 if(U16_IS_TRAIL((s)[--(i)])) { \
523 #define U16_BACK_1(s, start, i) { \
524 if(U16_IS_TRAIL((s)[--(i)]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
542 #define U16_BACK_N_UNSAFE(s, i, n) { \
545 U16_BACK_1_UNSAFE(s, i); \
564 #define U16_BACK_N(s, start, i, n) { \
566 while(__N>0 && (i)>(start)) { \
567 U16_BACK_1(s, start, i); \
585 #define U16_SET_CP_LIMIT_UNSAFE(s, i) { \
586 if(U16_IS_LEAD((s)[(i)-1])) { \
606 #define U16_SET_CP_LIMIT(s, start, i, length) { \
607 if((start)<(i) && (i)<(length) && U16_IS_LEAD((s)[(i)-1]) && U16_IS_TRAIL((s)[i])) { \
Basic types and constants for UTF.
C API: Code point macros.