| /* |
| * Copyright (C) 1999-2004, International Business Machines Corporation and others. All Rights Reserved. |
| * |
| */ |
| |
| #ifndef UnicodeMacrosFromICU_h |
| #define UnicodeMacrosFromICU_h |
| |
| // some defines from ICU |
| |
| #define U_IS_BMP(c) ((UChar32)(c)<=0xffff) |
| #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 U16_LENGTH(c) ((uint32_t)(c) <= 0xffff ? 1 : 2) |
| |
| #define U_IS_SUPPLEMENTARY(c) ((UChar32)((c)-0x10000)<=0xfffff) |
| #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_GET(s, start, i, length, c) { \ |
| (c)=(s)[i]; \ |
| if(U16_IS_SURROGATE(c)) { \ |
| uint16_t __c2; \ |
| if(U16_IS_SURROGATE_LEAD(c)) { \ |
| if((i)+1<(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \ |
| (c)=U16_GET_SUPPLEMENTARY((c), __c2); \ |
| } \ |
| } else { \ |
| if((i)-1>=(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \ |
| (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \ |
| } \ |
| } \ |
| } \ |
| } |
| |
| #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_BACK_1(s, start, i) { \ |
| if(U16_IS_TRAIL((s)[--(i)]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \ |
| --(i); \ |
| } \ |
| } |
| |
| #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 U16_FWD_1(s, i, length) { \ |
| if(U16_IS_LEAD((s)[(i)++]) && (i)<(length) && U16_IS_TRAIL((s)[i])) { \ |
| ++(i); \ |
| } \ |
| } |
| |
| #define U_MASK(x) ((uint32_t)1<<(x)) |
| |
| #define U8_MAX_LENGTH 4 |
| |
| #define U8_APPEND_UNSAFE(s, i, c) { \ |
| if((uint32_t)(c)<=0x7f) { \ |
| (s)[(i)++]=(uint8_t)(c); \ |
| } else { \ |
| if((uint32_t)(c)<=0x7ff) { \ |
| (s)[(i)++]=(uint8_t)(((c)>>6)|0xc0); \ |
| } else { \ |
| if((uint32_t)(c)<=0xffff) { \ |
| (s)[(i)++]=(uint8_t)(((c)>>12)|0xe0); \ |
| } else { \ |
| (s)[(i)++]=(uint8_t)(((c)>>18)|0xf0); \ |
| (s)[(i)++]=(uint8_t)((((c)>>12)&0x3f)|0x80); \ |
| } \ |
| (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80); \ |
| } \ |
| (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \ |
| } \ |
| } |
| #endif |
