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.