[14544] | 1 | /* utf8.h |
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| 2 | * |
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| 3 | * Copyright (c) 1998-2000, Larry Wall |
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| 4 | * |
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| 5 | * You may distribute under the terms of either the GNU General Public |
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| 6 | * License or the Artistic License, as specified in the README file. |
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| 7 | * |
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| 8 | */ |
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| 9 | |
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| 10 | START_EXTERN_C |
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| 11 | |
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| 12 | #ifdef DOINIT |
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| 13 | EXTCONST unsigned char PL_utf8skip[] = { |
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| 14 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ascii */ |
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| 15 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ascii */ |
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| 16 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ascii */ |
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| 17 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ascii */ |
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| 18 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* bogus */ |
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| 19 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* bogus */ |
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| 20 | 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, /* scripts */ |
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| 21 | 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,6,6, /* cjk etc. */ |
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| 22 | 7,13, /* Perl extended (not UTF-8). Up to 72bit allowed (64-bit + reserved). */ |
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| 23 | }; |
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| 24 | #else |
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| 25 | EXTCONST unsigned char PL_utf8skip[]; |
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| 26 | #endif |
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| 27 | |
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| 28 | END_EXTERN_C |
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| 29 | |
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| 30 | #define UTF8_MAXLEN 13 /* how wide can a single UTF8 encoded character become */ |
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| 31 | |
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| 32 | /*#define IN_UTF8 (PL_curcop->op_private & HINT_UTF8)*/ |
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| 33 | #define IN_BYTE (PL_curcop->op_private & HINT_BYTE) |
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| 34 | #define DO_UTF8(sv) (SvUTF8(sv) && !IN_BYTE) |
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| 35 | |
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| 36 | #define UTF8SKIP(s) PL_utf8skip[*(U8*)s] |
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| 37 | |
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| 38 | /* |
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| 39 | * Note: we try to be careful never to call the isXXX_utf8() functions |
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| 40 | * unless we're pretty sure we've seen the beginning of a UTF-8 character |
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| 41 | * (that is, the two high bits are set). Otherwise we risk loading in the |
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| 42 | * heavy-duty SWASHINIT and SWASHGET routines unnecessarily. |
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| 43 | */ |
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| 44 | #define isIDFIRST_lazy_if(p,c) ((!c || (*((U8*)p) < 0xc0)) \ |
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| 45 | ? isIDFIRST(*(p)) \ |
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| 46 | : isIDFIRST_utf8((U8*)p)) |
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| 47 | #define isALNUM_lazy_if(p,c) ((!c || (*((U8*)p) < 0xc0)) \ |
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| 48 | ? isALNUM(*(p)) \ |
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| 49 | : isALNUM_utf8((U8*)p)) |
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| 50 | #define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1) |
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| 51 | #define isALNUM_lazy(p) isALNUM_lazy_if(p,1) |
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