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author | markm <markm@FreeBSD.org> | 2000-06-25 11:04:01 +0000 |
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committer | markm <markm@FreeBSD.org> | 2000-06-25 11:04:01 +0000 |
commit | 2618fad5bbb2d0182eb31ed805c41b543c513940 (patch) | |
tree | 52ba93338b13aefd02a0055304a9eccfa0e049f5 /contrib/perl5/utf8.h | |
parent | 77644ee620b6a79cf8c538abaf7cd301a875528d (diff) | |
download | FreeBSD-src-2618fad5bbb2d0182eb31ed805c41b543c513940.zip FreeBSD-src-2618fad5bbb2d0182eb31ed805c41b543c513940.tar.gz |
Vendor import of Perl 5.006
Diffstat (limited to 'contrib/perl5/utf8.h')
-rw-r--r-- | contrib/perl5/utf8.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/contrib/perl5/utf8.h b/contrib/perl5/utf8.h new file mode 100644 index 0000000..c37a995 --- /dev/null +++ b/contrib/perl5/utf8.h @@ -0,0 +1,51 @@ +/* utf8.h + * + * Copyright (c) 1998-2000, Larry Wall + * + * You may distribute under the terms of either the GNU General Public + * License or the Artistic License, as specified in the README file. + * + */ + +START_EXTERN_C + +#ifdef DOINIT +EXTCONST unsigned char PL_utf8skip[] = { +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 */ +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 */ +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 */ +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 */ +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 */ +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 */ +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 */ +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. */ +7,13, /* Perl extended (not UTF-8). Up to 72bit allowed (64-bit + reserved). */ +}; +#else +EXTCONST unsigned char PL_utf8skip[]; +#endif + +END_EXTERN_C + +#define UTF8_MAXLEN 13 /* how wide can a single UTF8 encoded character become */ + +/*#define IN_UTF8 (PL_curcop->op_private & HINT_UTF8)*/ +#define IN_BYTE (PL_curcop->op_private & HINT_BYTE) +#define DO_UTF8(sv) (SvUTF8(sv) && !IN_BYTE) + +#define UTF8SKIP(s) PL_utf8skip[*(U8*)s] + +/* + * Note: we try to be careful never to call the isXXX_utf8() functions + * unless we're pretty sure we've seen the beginning of a UTF-8 character + * (that is, the two high bits are set). Otherwise we risk loading in the + * heavy-duty SWASHINIT and SWASHGET routines unnecessarily. + */ +#define isIDFIRST_lazy_if(p,c) ((!c || (*((U8*)p) < 0xc0)) \ + ? isIDFIRST(*(p)) \ + : isIDFIRST_utf8((U8*)p)) +#define isALNUM_lazy_if(p,c) ((!c || (*((U8*)p) < 0xc0)) \ + ? isALNUM(*(p)) \ + : isALNUM_utf8((U8*)p)) +#define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1) +#define isALNUM_lazy(p) isALNUM_lazy_if(p,1) |