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--- ksh-openbsd_cvs/charclass.h	1970-01-01 01:00:00.000000000 +0100
+++ ksh-openbsd_cvs.new/charclass.h	2010-04-01 21:01:24.132137763 +0200
@@ -0,0 +1,33 @@
+/*
+ * Public domain, 2008, Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * $OpenBSD: charclass.h,v 1.1 2008/10/01 23:04:13 millert Exp $
+ */
+
+#include <ctype.h>
+
+#define isblank(c)    __isctype((c), _ISblank)
+
+/*
+ * POSIX character class support for fnmatch() and glob().
+ */
+static struct cclass {
+	const char *name;
+	int (*isctype)(int);
+} cclasses[] = {
+	{ "alnum",	isalnum },
+	{ "alpha",	isalpha },
+//	{ "blank",	isblank },
+	{ "cntrl",	iscntrl },
+	{ "digit",	isdigit },
+	{ "graph",	isgraph },
+	{ "lower",	islower },
+	{ "print",	isprint },
+	{ "punct",	ispunct },
+	{ "space",	isspace },
+	{ "upper",	isupper },
+	{ "xdigit",	isxdigit },
+	{ NULL,		NULL }
+};
+
+#define NCCLASSES	(sizeof(cclasses) / sizeof(cclasses[0]) - 1)