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 UNICODE_SURROGATE_FIRST 0xd800
50 #define UNICODE_SURROGATE_LAST 0xdfff
51 #define UNICODE_REPLACEMENT 0xfffd
52 #define UNICODE_BYTER_ORDER_MARK 0xfffe
53 #define UNICODE_ILLEGAL 0xffff
55 #define UNICODE_IS_SURROGATE(c) ((c) >= UNICODE_SURROGATE_FIRST && \
56 (c) <= UNICODE_SURROGATE_LAST)
57 #define UNICODE_IS_REPLACEMENT(c) ((c) == UNICODE_REPLACMENT)
58 #define UNICODE_IS_BYTE_ORDER_MARK(c) ((c) == UNICODE_BYTER_ORDER_MARK)
59 #define UNICODE_IS_ILLEGAL(c) ((c) == UNICODE_ILLEGAL)
61 #define UTF8SKIP(s) PL_utf8skip[*(U8*)s]
63 #define UTF8_QUAD_MAX UINT64_C(0x1000000000)
65 #define UTF8_IS_ASCII(c) (((U8)c) < 0x80)
66 #define UTF8_IS_START(c) (((U8)c) >= 0xc0 && (((U8)c) <= 0xfd))
67 #define UTF8_IS_CONTINUATION(c) (((U8)c) >= 0x80 && (((U8)c) <= 0xbf))
68 #define UTF8_IS_CONTINUED(c) (((U8)c) & 0x80)
70 #define UTF8_CONTINUATION_MASK ((U8)0x3f)
71 #define UTF8_ACCUMULATION_SHIFT 6
72 #define UTF8_ACCUMULATE(old, new) ((old) << UTF8_ACCUMULATION_SHIFT | (((U8)new) & UTF8_CONTINUATION_MASK))
74 #define UTF8_EIGHT_BIT_HI(c) ( (((U8)(c))>>6) |0xc0)
75 #define UTF8_EIGHT_BIT_LO(c) (((((U8)(c)) )&0x3f)|0x80)
78 #define UNISKIP(uv) ( (uv) < 0x80 ? 1 : \
80 (uv) < 0x10000 ? 3 : \
81 (uv) < 0x200000 ? 4 : \
82 (uv) < 0x4000000 ? 5 : \
83 (uv) < 0x80000000 ? 6 : \
84 (uv) < UTF8_QUAD_MAX ? 7 : 13 )
86 /* No, I'm not even going to *TRY* putting #ifdef inside a #define */
87 #define UNISKIP(uv) ( (uv) < 0x80 ? 1 : \
89 (uv) < 0x10000 ? 3 : \
90 (uv) < 0x200000 ? 4 : \
91 (uv) < 0x4000000 ? 5 : \
92 (uv) < 0x80000000 ? 6 : 7 )
97 * Note: we try to be careful never to call the isXXX_utf8() functions
98 * unless we're pretty sure we've seen the beginning of a UTF-8 character
99 * (that is, the two high bits are set). Otherwise we risk loading in the
100 * heavy-duty SWASHINIT and SWASHGET routines unnecessarily.
103 #define isIDFIRST_lazy_if(p,c) isIDFIRST(*(p))
104 #define isALNUM_lazy_if(p,c) isALNUM(*(p))
106 #define isIDFIRST_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \
108 : isIDFIRST_utf8((U8*)p))
109 #define isALNUM_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \
111 : isALNUM_utf8((U8*)p))
113 #define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1)
114 #define isALNUM_lazy(p) isALNUM_lazy_if(p,1)