1*4887Schin /*********************************************************************** 2*4887Schin * * 3*4887Schin * This software is part of the ast package * 4*4887Schin * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5*4887Schin * and is licensed under the * 6*4887Schin * Common Public License, Version 1.0 * 7*4887Schin * by AT&T Knowledge Ventures * 8*4887Schin * * 9*4887Schin * A copy of the License is available at * 10*4887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 11*4887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12*4887Schin * * 13*4887Schin * Information and Software Systems Research * 14*4887Schin * AT&T Research * 15*4887Schin * Florham Park NJ * 16*4887Schin * * 17*4887Schin * Glenn Fowler <gsf@research.att.com> * 18*4887Schin * David Korn <dgk@research.att.com> * 19*4887Schin * Phong Vo <kpv@research.att.com> * 20*4887Schin * * 21*4887Schin ***********************************************************************/ 22*4887Schin #pragma prototyped 23*4887Schin /* 24*4887Schin * Glenn Fowler 25*4887Schin * AT&T Research 26*4887Schin */ 27*4887Schin 28*4887Schin #include <ast.h> 29*4887Schin #include <hashkey.h> 30*4887Schin 31*4887Schin long 32*4887Schin strkey(register const char* s) 33*4887Schin { 34*4887Schin register long x = 0; 35*4887Schin register int n = 0; 36*4887Schin register int c; 37*4887Schin 38*4887Schin while (n++ < HASHKEYMAX) 39*4887Schin { 40*4887Schin c = *s; 41*4887Schin if (c >= 'a' && c <= 'z') 42*4887Schin x = HASHKEYPART(x, c); 43*4887Schin else if (c >= '0' && c <= '9') 44*4887Schin x = HASHKEYPART(x, HASHKEYN(c)); 45*4887Schin else break; 46*4887Schin s++; 47*4887Schin } 48*4887Schin return x; 49*4887Schin } 50