mirror of
https://github.com/fluencelabs/musl
synced 2025-06-09 04:51:34 +00:00
015d33c507
this code was written independently of musl, with support for a the backwards, nonstandard "31-bit unicode" some libraries/apps might want. unfortunately the extra code (inside #ifdef) makes the source harder to read and makes code that should be simple look complex, so i'm removing it. anyone who wants to use the old code can find it in the history or from elsewhere. also, change the visibility of the __fsmu8 state machine table to hidden, if supported. this should improve performance slightly in shared-library builds.
35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/*
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* This code was written by Rich Felker in 2010; no copyright is claimed.
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* This code is in the public domain. Attribution is appreciated but
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* unnecessary.
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*/
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#include <inttypes.h>
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#include "internal.h"
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#define C(x) ( x<2 ? -1 : ( R(0x80,0xc0) | x ) )
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#define D(x) C((x+16))
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#define E(x) ( ( x==0 ? R(0xa0,0xc0) : \
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x==0xd ? R(0x80,0xa0) : \
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R(0x80,0xc0) ) \
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| ( R(0x80,0xc0) >> 6 ) \
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| x )
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#define F(x) ( ( x>=5 ? 0 : \
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x==0 ? R(0x90,0xc0) : \
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x==4 ? R(0x80,0xa0) : \
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R(0x80,0xc0) ) \
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| ( R(0x80,0xc0) >> 6 ) \
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| ( R(0x80,0xc0) >> 12 ) \
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| x )
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const uint32_t bittab[] = {
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C(0x2),C(0x3),C(0x4),C(0x5),C(0x6),C(0x7),
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C(0x8),C(0x9),C(0xa),C(0xb),C(0xc),C(0xd),C(0xe),C(0xf),
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D(0x0),D(0x1),D(0x2),D(0x3),D(0x4),D(0x5),D(0x6),D(0x7),
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D(0x8),D(0x9),D(0xa),D(0xb),D(0xc),D(0xd),D(0xe),D(0xf),
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E(0x0),E(0x1),E(0x2),E(0x3),E(0x4),E(0x5),E(0x6),E(0x7),
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E(0x8),E(0x9),E(0xa),E(0xb),E(0xc),E(0xd),E(0xe),E(0xf),
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F(0x0),F(0x1),F(0x2),F(0x3),F(0x4)
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};
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