2013-05-03 23:29:38 +00:00
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# $OpenBSD: hash.m4,v 1.3 2003/06/03 02:56:11 millert Exp $
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1996-06-26 05:36:21 +00:00
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# $NetBSD: hash.m4,v 1.4 1995/09/28 05:37:58 tls Exp $
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#
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# Copyright (c) 1989, 1993
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# The Regents of the University of California. All rights reserved.
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#
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# This code is derived from software contributed to Berkeley by
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# Ozan Yigit.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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2013-05-03 23:29:38 +00:00
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# 3. Neither the name of the University nor the names of its contributors
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1996-06-26 05:36:21 +00:00
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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2010-12-11 08:32:16 +00:00
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# $FreeBSD$
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#
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1996-06-26 05:36:21 +00:00
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# @(#)hash.m4 8.1 (Berkeley) 6/6/93
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#
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dnl This probably will not run on any m4 that cannot
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dnl handle char constants in eval.
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dnl
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changequote(<,>) define(HASHVAL,99) dnl
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define(hash,<eval(str(substr($1,1),0)%HASHVAL)>) dnl
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define(str,
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<ifelse($1,",$2,
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<str(substr(<$1>,1),<eval($2+'substr($1,0,1)')>)>)
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>) dnl
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define(KEYWORD,<$1,hash($1),>) dnl
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define(TSTART,
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<struct prehash {
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char *keyword;
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int hashval;
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} keytab[] = {>) dnl
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define(TEND,< "",0
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};>) dnl
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