--- /dev/null
+++ Libc/Libc-583/include/runetype.h
@@ -0,0 +1,136 @@
+/*-
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Paul Borman at Krystal Technologies.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)runetype.h	8.1 (Berkeley) 6/2/93
+ */
+
+#ifndef	_RUNETYPE_H_
+#define	_RUNETYPE_H_
+
+#include <_types.h>
+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+
+#ifndef	_SIZE_T
+#define _SIZE_T
+typedef	__darwin_size_t		size_t;
+#endif
+
+#ifndef	_CT_RUNE_T
+#define _CT_RUNE_T
+typedef	__darwin_ct_rune_t	ct_rune_t;
+#endif
+
+#ifndef	_RUNE_T
+#define _RUNE_T
+typedef	__darwin_rune_t		rune_t;
+#endif
+
+#ifndef	__cplusplus
+#ifndef	_WCHAR_T
+#define	_WCHAR_T
+typedef	__darwin_wchar_t	wchar_t;
+#endif	/* _WCHAR_T */
+#endif	/* __cplusplus */
+
+#ifndef	_WINT_T
+#define _WINT_T
+typedef	__darwin_wint_t		wint_t;
+#endif
+
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+
+#define	_CACHED_RUNES	(1 <<8 )	/* Must be a power of 2 */
+#define	_CRMASK		(~(_CACHED_RUNES - 1))
+
+/*
+ * The lower 8 bits of runetype[] contain the digit value of the rune.
+ */
+typedef struct {
+	__darwin_rune_t	__min;		/* First rune of the range */
+	__darwin_rune_t	__max;		/* Last rune (inclusive) of the range */
+	__darwin_rune_t	__map;		/* What first maps to in maps */
+	__uint32_t	*__types;	/* Array of types in range */
+} _RuneEntry;
+
+typedef struct {
+	int		__nranges;	/* Number of ranges stored */
+	_RuneEntry	*__ranges;	/* Pointer to the ranges */
+} _RuneRange;
+
+typedef struct {
+	char		__name[14];	/* CHARCLASS_NAME_MAX = 14 */
+	__uint32_t	__mask;		/* charclass mask */
+} _RuneCharClass;
+
+typedef struct {
+	char		__magic[8];	/* Magic saying what version we are */
+	char		__encoding[32];	/* ASCII name of this encoding */
+
+	__darwin_rune_t	(*__sgetrune)(const char *, __darwin_size_t, char const **);
+	int		(*__sputrune)(__darwin_rune_t, char *, __darwin_size_t, char **);
+	__darwin_rune_t	__invalid_rune;
+
+	__uint32_t	__runetype[_CACHED_RUNES];
+	__darwin_rune_t	__maplower[_CACHED_RUNES];
+	__darwin_rune_t	__mapupper[_CACHED_RUNES];
+
+	/*
+	 * The following are to deal with Runes larger than _CACHED_RUNES - 1.
+	 * Their data is actually contiguous with this structure so as to make
+	 * it easier to read/write from/to disk.
+	 */
+	_RuneRange	__runetype_ext;
+	_RuneRange	__maplower_ext;
+	_RuneRange	__mapupper_ext;
+
+	void		*__variable;	/* Data which depends on the encoding */
+	int		__variable_len;	/* how long that data is */
+
+	/*
+	 * extra fields to deal with arbitrary character classes
+	 */
+	int		__ncharclasses;
+	_RuneCharClass	*__charclasses;
+} _RuneLocale;
+
+#define	_RUNE_MAGIC_A	"RuneMagA"	/* Indicates version A of RuneLocale */
+
+__BEGIN_DECLS
+extern _RuneLocale _DefaultRuneLocale;
+extern _RuneLocale *_CurrentRuneLocale;
+__END_DECLS
+
+#endif	/* !_RUNETYPE_H_ */