UnicodeMacrosFromICU.h [plain text]
#ifndef UnicodeMacrosFromICU_h
#define UnicodeMacrosFromICU_h
#define U16_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)
#define U16_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)
#define U16_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
#define U16_GET_SUPPLEMENTARY(lead, trail) \
(((UChar32)(lead)<<10UL)+(UChar32)(trail)-U16_SURROGATE_OFFSET)
#define U16_LEAD(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
#define U16_TRAIL(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
#define U_IS_SURROGATE(c) (((c)&0xfffff800)==0xd800)
#define U16_IS_SINGLE(c) !U_IS_SURROGATE(c)
#define U16_IS_SURROGATE(c) U_IS_SURROGATE(c)
#define U16_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)
#define U16_PREV(s, start, i, c) { \
(c)=(s)[--(i)]; \
if(U16_IS_TRAIL(c)) { \
uint16_t __c2; \
if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
--(i); \
(c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
} \
} \
}
#define U16_NEXT(s, i, length, c) { \
(c)=(s)[(i)++]; \
if(U16_IS_LEAD(c)) { \
uint16_t __c2; \
if((i)<(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \
++(i); \
(c)=U16_GET_SUPPLEMENTARY((c), __c2); \
} \
} \
}
#define U_MASK(x) ((uint32_t)1<<(x))
#endif