3 * Copyright (c) 1998-2000, Larry Wall
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.
13 EXTCONST unsigned char PL_utf8skip[] = {
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 */
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). */
25 EXTCONST unsigned char PL_utf8skip[];
30 #define UTF8_MAXLEN 13 /* how wide can a single UTF8 encoded character become */
32 /* #define IN_UTF8 (PL_curcop->op_private & HINT_UTF8) */
33 #define IN_BYTE (PL_curcop->op_private & HINT_BYTE)
34 #define DO_UTF8(sv) (SvUTF8(sv) && !IN_BYTE)
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
44 #define UTF8_ALLOW_ANYUV (UTF8_ALLOW_FE_FF|UTF8_ALLOW_FFFF \
45 |UTF8_ALLOW_BOM|UTF8_ALLOW_SURROGATE)
46 #define UTF8_ALLOW_ANY 0x00ff
47 #define UTF8_CHECK_ONLY 0x0100
49 #define UTF8SKIP(s) PL_utf8skip[*(U8*)s]
51 #define UTF8_QUAD_MAX UINT64_C(0x1000000000)
54 #define UNISKIP(uv) ( (uv) < 0x80 ? 1 : \
56 (uv) < 0x10000 ? 3 : \
57 (uv) < 0x200000 ? 4 : \
58 (uv) < 0x4000000 ? 5 : \
59 (uv) < 0x80000000 ? 6 : \
60 (uv) < UTF8_QUAD_MAX ? 7 : 13 )
62 /* No, I'm not even going to *TRY* putting #ifdef inside a #define */
63 #define UNISKIP(uv) ( (uv) < 0x80 ? 1 : \
65 (uv) < 0x10000 ? 3 : \
66 (uv) < 0x200000 ? 4 : \
67 (uv) < 0x4000000 ? 5 : \
68 (uv) < 0x80000000 ? 6 : 7 )
71 #define UNICODE_REPLACEMENT_CHARACTER 0xfffd
74 * Note: we try to be careful never to call the isXXX_utf8() functions
75 * unless we're pretty sure we've seen the beginning of a UTF-8 character
76 * (that is, the two high bits are set). Otherwise we risk loading in the
77 * heavy-duty SWASHINIT and SWASHGET routines unnecessarily.
80 #define isIDFIRST_lazy_if(p,c) isIDFIRST(*(p))
81 #define isALNUM_lazy_if(p,c) isALNUM(*(p))
83 #define isIDFIRST_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \
85 : isIDFIRST_utf8((U8*)p))
86 #define isALNUM_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \
88 : isALNUM_utf8((U8*)p))
90 #define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1)
91 #define isALNUM_lazy(p) isALNUM_lazy_if(p,1)