strkey.c revision 1
1N/A/***********************************************************************
1N/A* *
1N/A* This software is part of the ast package *
1N/A* Copyright (c) 1985-2011 AT&T Intellectual Property *
1N/A* and is licensed under the *
1N/A* Common Public License, Version 1.0 *
1N/A* by AT&T Intellectual Property *
1N/A* *
1N/A* A copy of the License is available at *
1N/A* http://www.opensource.org/licenses/cpl1.0.txt *
1N/A* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
1N/A* *
1N/A* Information and Software Systems Research *
1N/A* AT&T Research *
1N/A* Florham Park NJ *
1N/A* *
1N/A* Glenn Fowler <gsf@research.att.com> *
1N/A* David Korn <dgk@research.att.com> *
1N/A* Phong Vo <kpv@research.att.com> *
1N/A* *
1N/A***********************************************************************/
1N/A#pragma prototyped
1N/A/*
1N/A * Glenn Fowler
1N/A * AT&T Research
1N/A */
1N/A
1N/A#include <ast.h>
1N/A#include <hashkey.h>
1N/A
1N/Along
1N/Astrkey(register const char* s)
1N/A{
1N/A register long x = 0;
1N/A register int n = 0;
1N/A register int c;
1N/A
1N/A while (n++ < HASHKEYMAX)
1N/A {
1N/A c = *s;
1N/A if (c >= 'a' && c <= 'z')
1N/A x = HASHKEYPART(x, c);
1N/A else if (c >= '0' && c <= '9')
1N/A x = HASHKEYPART(x, HASHKEYN(c));
1N/A else break;
1N/A s++;
1N/A }
1N/A return x;
1N/A}