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- /* 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)
-