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Defined INT64_C() and UINT64_C() unless defined by <inttypes.h>
[perl5.git] / utf8.h
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1/* utf8.h
2 *
3818b22b 3 * Copyright (c) 1998-2000, Larry Wall
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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
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10START_EXTERN_C
11
a0ed51b3 12#ifdef DOINIT
6f06b55f 13EXTCONST unsigned char PL_utf8skip[] = {
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141,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ascii */
151,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ascii */
161,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ascii */
171,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ascii */
181,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* bogus */
191,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* bogus */
202,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, /* scripts */
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213,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,6,6, /* cjk etc. */
227,13, /* Perl extended (not UTF-8). Up to 72bit allowed (64-bit + reserved). */
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23};
24#else
6f06b55f 25EXTCONST unsigned char PL_utf8skip[];
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26#endif
27
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28END_EXTERN_C
29
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30#define UTF8_MAXLEN 13 /* how wide can a single UTF8 encoded character become */
31
fcc8fcf6 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
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36#define UTF8_ALLOW_CONTINUATION 0x0001
37#define UTF8_ALLOW_NON_CONTINUATION 0x0002
38#define UTF8_ALLOW_FE_FF 0x0004
39#define UTF8_ALLOW_SHORT 0x0008
40#define UTF8_ALLOW_SURROGATE 0x0010
41#define UTF8_ALLOW_BOM 0x0020
42#define UTF8_ALLOW_FFFF 0x0040
43#define UTF8_ALLOW_LONG 0x0080
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44#define UTF8_ALLOW_ANYUV (UTF8_ALLOW_FE_FF|UTF8_ALLOW_FFFF \
45 |UTF8_ALLOW_BOM|UTF8_ALLOW_SURROGATE)
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46#define UTF8_ALLOW_ANY 0x00ff
47#define UTF8_CHECK_ONLY 0x0100
48
6f06b55f 49#define UTF8SKIP(s) PL_utf8skip[*(U8*)s]
7e2040f0 50
1d68d6cd 51#ifdef HAS_QUAD
5bbb0b5a 52#define UNISKIP(uv) ( (uv) < 0x80 ? 1 : \
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53 (uv) < 0x800 ? 2 : \
54 (uv) < 0x10000 ? 3 : \
55 (uv) < 0x200000 ? 4 : \
56 (uv) < 0x4000000 ? 5 : \
57 (uv) < 0x80000000 ? 6 : \
58 (uv) < 0x1000000000LL ? 7 : 13 )
59#else
60/* No, I'm not even going to *TRY* putting #ifdef inside a #define */
5bbb0b5a 61#define UNISKIP(uv) ( (uv) < 0x80 ? 1 : \
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62 (uv) < 0x800 ? 2 : \
63 (uv) < 0x10000 ? 3 : \
64 (uv) < 0x200000 ? 4 : \
65 (uv) < 0x4000000 ? 5 : \
66 (uv) < 0x80000000 ? 6 : 7 )
67#endif
68
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69#define UNICODE_REPLACEMENT_CHARACTER 0xfffd
70
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71/*
72 * Note: we try to be careful never to call the isXXX_utf8() functions
73 * unless we're pretty sure we've seen the beginning of a UTF-8 character
74 * (that is, the two high bits are set). Otherwise we risk loading in the
75 * heavy-duty SWASHINIT and SWASHGET routines unnecessarily.
76 */
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77#ifdef EBCDIC
78#define isIDFIRST_lazy_if(p,c) isIDFIRST(*(p))
79#define isALNUM_lazy_if(p,c) isALNUM(*(p))
80#else
81#define isIDFIRST_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \
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82 ? isIDFIRST(*(p)) \
83 : isIDFIRST_utf8((U8*)p))
5b154c98 84#define isALNUM_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \
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85 ? isALNUM(*(p)) \
86 : isALNUM_utf8((U8*)p))
5b154c98 87#endif
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88#define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1)
89#define isALNUM_lazy(p) isALNUM_lazy_if(p,1)