diff options
Diffstat (limited to 'utf8.h')
| -rw-r--r-- | utf8.h | 13 |
1 files changed, 8 insertions, 5 deletions
@@ -62,15 +62,18 @@ END_EXTERN_C #define UTF8_QUAD_MAX UINT64_C(0x1000000000) -#define UTF8_IS_ASCII(c) ((c) < 0x80) -#define UTF8_IS_START(c) ((c) >= 0xc0 && ((c) <= 0xfd)) -#define UTF8_IS_CONTINUATION(c) ((c) >= 0x80 && ((c) <= 0xbf)) -#define UTF8_IS_CONTINUED(c) ((c) & 0x80) +#define UTF8_IS_ASCII(c) (((U8)c) < 0x80) +#define UTF8_IS_START(c) (((U8)c) >= 0xc0 && (((U8)c) <= 0xfd)) +#define UTF8_IS_CONTINUATION(c) (((U8)c) >= 0x80 && (((U8)c) <= 0xbf)) +#define UTF8_IS_CONTINUED(c) (((U8)c) & 0x80) -#define UTF8_CONTINUATION_MASK 0x3f +#define UTF8_CONTINUATION_MASK ((U8)0x3f) #define UTF8_ACCUMULATION_SHIFT 6 #define UTF8_ACCUMULATE(old, new) ((old) << UTF8_ACCUMULATION_SHIFT | ((new) & UTF8_CONTINUATION_MASK)) +#define UTF8_EIGHT_BIT_HI(c) ( (((U8)c)>>6) |0xc0) +#define UTF8_EIGHT_BIT_LO(c) (((((U8)c)>>6)&0x3f)|0x80) + #ifdef HAS_QUAD #define UNISKIP(uv) ( (uv) < 0x80 ? 1 : \ (uv) < 0x800 ? 2 : \ |