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27 lines
900 B
C
27 lines
900 B
C
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#ifndef COSMOPOLITAN_THIRD_PARTY_MUSL_MULTIBYTE_H_
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#define COSMOPOLITAN_THIRD_PARTY_MUSL_MULTIBYTE_H_
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#define bittab __fsmu8
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extern const uint32_t bittab[];
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/* Upper 6 state bits are a negative integer offset to bound-check next byte */
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/* equivalent to: ( (b-0x80) | (b+offset) ) & ~0x3f */
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#define OOB(c,b) (((((b)>>3)-0x10)|(((b)>>3)+((int32_t)(c)>>26))) & ~7)
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/* Interval [a,b). Either a must be 80 or b must be c0, lower 3 bits clear. */
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#define R(a,b) ((uint32_t)((a==0x80 ? 0x40u-b : 0u-a) << 23))
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#define FAILSTATE R(0x80,0x80)
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#define SA 0xc2u
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#define SB 0xf4u
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/* Arbitrary encoding for representing code units instead of characters. */
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#define CODEUNIT(c) (0xdfff & (signed char)(c))
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#define IS_CODEUNIT(c) ((unsigned)(c)-0xdf80 < 0x80)
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/* Get inline definition of MB_CUR_MAX. */
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#include "libc/str/locale.internal.h"
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#endif /* COSMOPOLITAN_THIRD_PARTY_MUSL_MULTIBYTE_H_ */
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