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)); \
198 #define U16_GET(s, start, i, length, c) { \
200 if(U16_IS_SURROGATE(c)) { \
202 if(U16_IS_SURROGATE_LEAD(c)) { \
203 if((i)+1!=(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \
204 (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
207 if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
208 (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
235 #define U16_NEXT_UNSAFE(s, i, c) { \
237 if(U16_IS_LEAD(c)) { \
238 (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)++]); \
264 #define U16_NEXT(s, i, length, c) { \
266 if(U16_IS_LEAD(c)) { \
268 if((i)!=(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \
270 (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
288 #define U16_APPEND_UNSAFE(s, i, c) { \
289 if((uint32_t)(c)<=0xffff) { \
290 (s)[(i)++]=(uint16_t)(c); \
292 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
293 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
314 #define U16_APPEND(s, i, capacity, c, isError) { \
315 if((uint32_t)(c)<=0xffff) { \
316 (s)[(i)++]=(uint16_t)(c); \
317 } else if((uint32_t)(c)<=0x10ffff && (i)+1<(capacity)) { \
318 (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
319 (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
335 #define U16_FWD_1_UNSAFE(s, i) { \
336 if(U16_IS_LEAD((s)[(i)++])) { \
354 #define U16_FWD_1(s, i, length) { \
355 if(U16_IS_LEAD((s)[(i)++]) && (i)!=(length) && U16_IS_TRAIL((s)[i])) { \
372 #define U16_FWD_N_UNSAFE(s, i, n) { \
375 U16_FWD_1_UNSAFE(s, i); \
395 #define U16_FWD_N(s, i, length, n) { \
397 while(__N>0 && ((i)<(length) || ((length)<0 && (s)[i]!=0))) { \
398 U16_FWD_1(s, i, length); \
416 #define U16_SET_CP_START_UNSAFE(s, i) { \
417 if(U16_IS_TRAIL((s)[i])) { \
436 #define U16_SET_CP_START(s, start, i) { \
437 if(U16_IS_TRAIL((s)[i]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
464 #define U16_PREV_UNSAFE(s, i, c) { \
466 if(U16_IS_TRAIL(c)) { \
467 (c)=U16_GET_SUPPLEMENTARY((s)[--(i)], (c)); \
492 #define U16_PREV(s, start, i, c) { \
494 if(U16_IS_TRAIL(c)) { \
496 if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
498 (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
514 #define U16_BACK_1_UNSAFE(s, i) { \
515 if(U16_IS_TRAIL((s)[--(i)])) { \
532 #define U16_BACK_1(s, start, i) { \
533 if(U16_IS_TRAIL((s)[--(i)]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
551 #define U16_BACK_N_UNSAFE(s, i, n) { \
554 U16_BACK_1_UNSAFE(s, i); \
573 #define U16_BACK_N(s, start, i, n) { \
575 while(__N>0 && (i)>(start)) { \
576 U16_BACK_1(s, start, i); \
594 #define U16_SET_CP_LIMIT_UNSAFE(s, i) { \
595 if(U16_IS_LEAD((s)[(i)-1])) { \
617 #define U16_SET_CP_LIMIT(s, start, i, length) { \
618 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.