X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=handy.h;h=fe29019b438fd968b17df8aded7a5289831f2cf8;hb=b31b80f9d91ded188b47dd78c18a0a1effe2584d;hp=9a06b77e2612844efb25c9b7393e177dd323506a;hpb=0e983133b1c8b37e15a466d55b4d79492d02e7da;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/handy.h b/handy.h
index 9a06b77..fe29019 100644
--- a/handy.h
+++ b/handy.h
@@ -460,7 +460,10 @@ Converts the specified character to lowercase.
 #define isBLANK_LC_uni(c)	isBLANK(c) /* could be wrong */
 
 #define isALNUM_utf8(p)		is_utf8_alnum(p)
-#define isIDFIRST_utf8(p)	is_utf8_idfirst(p)
+/* The ID_Start of Unicode is quite limiting: it assumes a L-class
+ * character (meaning that you cannot have, say, a CJK character).
+ * Instead, let's allow ID_Continue but not digits. */
+#define isIDFIRST_utf8(p)	(is_utf8_idcont(p) && !is_utf8_digit(p))
 #define isALPHA_utf8(p)		is_utf8_alpha(p)
 #define isSPACE_utf8(p)		is_utf8_space(p)
 #define isDIGIT_utf8(p)		is_utf8_digit(p)
@@ -575,8 +578,12 @@ destination, C<nitems> is the number of items, and C<type> is the type.
 =for apidoc Am|void|StructCopy|type src|type dest|type
 This is an architecture-independent macro to copy one structure to another.
 
-=cut
-*/
+=for apidoc Am|void|Poison|void* dest|int nitems|type
+
+Fill up memory with a pattern (byte 0xAB over and over again) that
+hopefully catches attempts to access uninitialized memory.
+
+=cut */
 
 #ifndef lint
 
@@ -620,6 +627,8 @@ extern long lastxycount[MAXXCOUNT][MAXYCOUNT];
 #define Copy(s,d,n,t)	(void)memcpy((char*)(d),(char*)(s), (n) * sizeof(t))
 #define Zero(d,n,t)	(void)memzero((char*)(d), (n) * sizeof(t))
 
+#define Poison(d,n,t)	(void)memset((char*)(d), 0xAB, (n) * sizeof(t))
+
 #else /* lint */
 
 #define New(x,v,n,s)	(v = Null(s *))
@@ -629,6 +638,7 @@ extern long lastxycount[MAXXCOUNT][MAXYCOUNT];
 #define Move(s,d,n,t)
 #define Copy(s,d,n,t)
 #define Zero(d,n,t)
+#define Poison(d,n,t)
 #define Safefree(d)	(d) = (d)
 
 #endif /* lint */