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split() utf8 fixes. Should fix both 20001014.001 and 20000426.003.
[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
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]
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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 */
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44#ifdef EBCDIC
45#define isIDFIRST_lazy_if(p,c) isIDFIRST(*(p))
46#define isALNUM_lazy_if(p,c) isALNUM(*(p))
47#else
48#define isIDFIRST_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \
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49 ? isIDFIRST(*(p)) \
50 : isIDFIRST_utf8((U8*)p))
5b154c98 51#define isALNUM_lazy_if(p,c) ((IN_BYTE || (!c || (*((U8*)p) < 0xc0))) \
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52 ? isALNUM(*(p)) \
53 : isALNUM_utf8((U8*)p))
5b154c98 54#endif
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55#define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1)
56#define isALNUM_lazy(p) isALNUM_lazy_if(p,1)