https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | 37 | |
| 1d68d6cd SC |
38 | #ifdef HAS_QUAD |
| 39 | #define UTF8LEN(uv) ( (uv) < 0x80 ? 1 : \ | |
| 40 | (uv) < 0x800 ? 2 : \ | |
| 41 | (uv) < 0x10000 ? 3 : \ | |
| 42 | (uv) < 0x200000 ? 4 : \ | |
| 43 | (uv) < 0x4000000 ? 5 : \ | |
| 44 | (uv) < 0x80000000 ? 6 : \ | |
| 45 | (uv) < 0x1000000000LL ? 7 : 13 ) | |
| 46 | #else | |
| 47 | /* No, I'm not even going to *TRY* putting #ifdef inside a #define */ | |
| 48 | #define UTF8LEN(uv) ( (uv) < 0x80 ? 1 : \ | |
| 49 | (uv) < 0x800 ? 2 : \ | |
| 50 | (uv) < 0x10000 ? 3 : \ | |
| 51 | (uv) < 0x200000 ? 4 : \ | |
| 52 | (uv) < 0x4000000 ? 5 : \ | |
| 53 | (uv) < 0x80000000 ? 6 : 7 ) | |
| 54 | #endif | |
| 55 | ||
| 7e2040f0 GS |
56 | /* |
| 57 | * Note: we try to be careful never to call the isXXX_utf8() functions | |
| 58 | * unless we're pretty sure we've seen the beginning of a UTF-8 character | |
| 59 | * (that is, the two high bits are set). Otherwise we risk loading in the | |
| 60 | * heavy-duty SWASHINIT and SWASHGET routines unnecessarily. | |
| 61 | */ | |
| 5b154c98 JH |
62 | #ifdef EBCDIC |
| 63 | #define isIDFIRST_lazy_if(p,c) isIDFIRST(*(p)) | |
| 64 | #define isALNUM_lazy_if(p,c) isALNUM(*(p)) | |
| 65 | #else | |
| 66 | #define isIDFIRST_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \ | |
| 7e2040f0 GS |
67 | ? isIDFIRST(*(p)) \ |
| 68 | : isIDFIRST_utf8((U8*)p)) | |
| 5b154c98 | 69 | #define isALNUM_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \ |
| 7e2040f0 GS |
70 | ? isALNUM(*(p)) \ |
| 71 | : isALNUM_utf8((U8*)p)) | |
| 5b154c98 | 72 | #endif |
| 7e2040f0 GS |
73 | #define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1) |
| 74 | #define isALNUM_lazy(p) isALNUM_lazy_if(p,1) |