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)