From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001 From: Vladimir Azarov Date: Tue, 1 Oct 2024 15:47:05 +0200 Subject: Initial version --- src/multibyte/internal.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 src/multibyte/internal.h (limited to 'src/multibyte/internal.h') diff --git a/src/multibyte/internal.h b/src/multibyte/internal.h new file mode 100644 index 0000000..45bbc6d --- /dev/null +++ b/src/multibyte/internal.h @@ -0,0 +1,24 @@ +#define bittab __fsmu8 + +#include +#include + +extern hidden const uint32_t bittab[]; + +/* Upper 6 state bits are a negative integer offset to bound-check next byte */ +/* equivalent to: ( (b-0x80) | (b+offset) ) & ~0x3f */ +#define OOB(c,b) (((((b)>>3)-0x10)|(((b)>>3)+((int32_t)(c)>>26))) & ~7) + +/* Interval [a,b). Either a must be 80 or b must be c0, lower 3 bits clear. */ +#define R(a,b) ((uint32_t)((a==0x80 ? 0x40u-b : 0u-a) << 23)) +#define FAILSTATE R(0x80,0x80) + +#define SA 0xc2u +#define SB 0xf4u + +/* Arbitrary encoding for representing code units instead of characters. */ +#define CODEUNIT(c) (0xdfff & (signed char)(c)) +#define IS_CODEUNIT(c) ((unsigned)(c)-0xdf80 < 0x80) + +/* Get inline definition of MB_CUR_MAX. */ +#include "locale_impl.h" -- cgit v1.2.3