From 3950ffe2a485479f6561c27364d3d7df5a21d124 Mon Sep 17 00:00:00 2001
From: Igor Pashev <pashev.igor@gmail.com>
Date: Sun, 24 Jun 2012 22:28:35 +0000
Subject: Imported Upstream version 93u+

---
 src/lib/libast/astsa/hashkey.h | 61 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 src/lib/libast/astsa/hashkey.h

(limited to 'src/lib/libast/astsa/hashkey.h')

diff --git a/src/lib/libast/astsa/hashkey.h b/src/lib/libast/astsa/hashkey.h
new file mode 100644
index 0000000..7f02842
--- /dev/null
+++ b/src/lib/libast/astsa/hashkey.h
@@ -0,0 +1,61 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2012 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+/*
+ * Glenn Fowler
+ * AT&T Research
+ *
+ * 1-6 char lower-case keyword -> long hash
+ * digit args passed as HASHKEYN('2')
+ */
+
+#ifndef _HASHKEY_H
+#define _HASHKEY_H			1
+
+#define HASHKEYMAX			6
+#define HASHKEYBIT			5
+#define HASHKEYOFF			('a'-1)
+#define HASHKEYPART(h,c)		(((h)<<HASHKEYBIT)+HASHKEY1(c))
+
+#define HASHKEYN(n)			((n)-'0'+'z'+1)
+
+#define HASHKEY1(c1)			((c1)-HASHKEYOFF)
+#define HASHKEY2(c1,c2)			HASHKEYPART(HASHKEY1(c1),c2)
+#define HASHKEY3(c1,c2,c3)		HASHKEYPART(HASHKEY2(c1,c2),c3)
+#define HASHKEY4(c1,c2,c3,c4)		HASHKEYPART(HASHKEY3(c1,c2,c3),c4)
+#define HASHKEY5(c1,c2,c3,c4,c5)	HASHKEYPART(HASHKEY4(c1,c2,c3,c4),c5)
+#define HASHKEY6(c1,c2,c3,c4,c5,c6)	HASHKEYPART(HASHKEY5(c1,c2,c3,c4,c5),c6)
+
+#define HASHNKEY1(n,c1)			HASHKEY2((n)+HASHKEYOFF,c1)
+#define HASHNKEY2(n,c2,c1)		HASHKEY3((n)+HASHKEYOFF,c2,c1)
+#define HASHNKEY3(n,c3,c2,c1)		HASHKEY4((n)+HASHKEYOFF,c3,c2,c1)
+#define HASHNKEY4(n,c4,c3,c2,c1)	HASHKEY5((n)+'a',c4,c3,c2,c1)
+#define HASHNKEY5(n,c5,c4,c3,c2,c1)	HASHKEY6((n)+'a',c5,c4,c3,c2,c1)
+
+#if _BLD_ast && defined(__EXPORT__)
+#define extern		__EXPORT__
+#endif
+
+extern long	strkey(const char*);
+
+#undef	extern
+
+#endif
-- 
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