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a0ed51b3 LW |
1 | /* utf8.h |
2 | * | |
3818b22b | 3 | * Copyright (c) 1998-2000, Larry Wall |
a0ed51b3 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
73c4f7a1 GS |
10 | START_EXTERN_C |
11 | ||
a0ed51b3 | 12 | #ifdef DOINIT |
6f06b55f | 13 | EXTCONST unsigned char PL_utf8skip[] = { |
a0ed51b3 LW |
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 */ |
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 */ | |
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 */ | |
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 */ | |
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 */ | |
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 */ | |
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 */ | |
3c77ea2b GS |
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. */ |
22 | 7,13, /* Perl extended (not UTF-8). Up to 72bit allowed (64-bit + reserved). */ | |
a0ed51b3 LW |
23 | }; |
24 | #else | |
6f06b55f | 25 | EXTCONST unsigned char PL_utf8skip[]; |
a0ed51b3 LW |
26 | #endif |
27 | ||
73c4f7a1 GS |
28 | END_EXTERN_C |
29 | ||
aa6ffa16 GS |
30 | #define UTF8_MAXLEN 13 /* how wide can a single UTF8 encoded character become */ |
31 | ||
393fec97 | 32 | /*#define IN_UTF8 (PL_curcop->op_private & HINT_UTF8)*/ |
5bc28da9 | 33 | #define IN_BYTE (PL_curcop->op_private & HINT_BYTE) |
7e2040f0 | 34 | #define DO_UTF8(sv) (SvUTF8(sv) && !IN_BYTE) |
a0ed51b3 | 35 | |
6f06b55f | 36 | #define UTF8SKIP(s) PL_utf8skip[*(U8*)s] |
7e2040f0 GS |
37 | |
38 | /* | |
39 | * Note: we try to be careful never to call the isXXX_utf8() functions | |
40 | * unless we're pretty sure we've seen the beginning of a UTF-8 character | |
41 | * (that is, the two high bits are set). Otherwise we risk loading in the | |
42 | * heavy-duty SWASHINIT and SWASHGET routines unnecessarily. | |
43 | */ | |
44 | #define isIDFIRST_lazy_if(p,c) ((!c || (*((U8*)p) < 0xc0)) \ | |
45 | ? isIDFIRST(*(p)) \ | |
46 | : isIDFIRST_utf8((U8*)p)) | |
47 | #define isALNUM_lazy_if(p,c) ((!c || (*((U8*)p) < 0xc0)) \ | |
48 | ? isALNUM(*(p)) \ | |
49 | : isALNUM_utf8((U8*)p)) | |
50 | #define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1) | |
51 | #define isALNUM_lazy(p) isALNUM_lazy_if(p,1) |