1 2 /* : : generated by proto : : */ 3 /*********************************************************************** 4 * * 5 * This software is part of the ast package * 6 * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 7 * and is licensed under the * 8 * Common Public License, Version 1.0 * 9 * by AT&T Knowledge Ventures * 10 * * 11 * A copy of the License is available at * 12 * http://www.opensource.org/licenses/cpl1.0.txt * 13 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 14 * * 15 * Information and Software Systems Research * 16 * AT&T Research * 17 * Florham Park NJ * 18 * * 19 * Glenn Fowler <gsf@research.att.com> * 20 * David Korn <dgk@research.att.com> * 21 * Phong Vo <kpv@research.att.com> * 22 * * 23 ***********************************************************************/ 24 25 /* 26 * Glenn Fowler 27 * AT&T Research 28 * 29 * 1-6 char lower-case keyword -> long hash 30 * digit args passed as HASHKEYN('2') 31 */ 32 33 #ifndef _HASHKEY_H 34 #if !defined(__PROTO__) 35 #include <prototyped.h> 36 #endif 37 #if !defined(__LINKAGE__) 38 #define __LINKAGE__ /* 2004-08-11 transition */ 39 #endif 40 41 #define _HASHKEY_H 42 43 #define HASHKEYMAX 6 44 #define HASHKEYBIT 5 45 #define HASHKEYOFF ('a'-1) 46 #define HASHKEYPART(h,c) (((h)<<HASHKEYBIT)+HASHKEY1(c)) 47 48 #define HASHKEYN(n) ((n)-'0'+'z'+1) 49 50 #define HASHKEY1(c1) ((c1)-HASHKEYOFF) 51 #define HASHKEY2(c1,c2) HASHKEYPART(HASHKEY1(c1),c2) 52 #define HASHKEY3(c1,c2,c3) HASHKEYPART(HASHKEY2(c1,c2),c3) 53 #define HASHKEY4(c1,c2,c3,c4) HASHKEYPART(HASHKEY3(c1,c2,c3),c4) 54 #define HASHKEY5(c1,c2,c3,c4,c5) HASHKEYPART(HASHKEY4(c1,c2,c3,c4),c5) 55 #define HASHKEY6(c1,c2,c3,c4,c5,c6) HASHKEYPART(HASHKEY5(c1,c2,c3,c4,c5),c6) 56 57 #define HASHNKEY1(n,c1) HASHKEY2((n)+HASHKEYOFF,c1) 58 #define HASHNKEY2(n,c2,c1) HASHKEY3((n)+HASHKEYOFF,c2,c1) 59 #define HASHNKEY3(n,c3,c2,c1) HASHKEY4((n)+HASHKEYOFF,c3,c2,c1) 60 #define HASHNKEY4(n,c4,c3,c2,c1) HASHKEY5((n)+'a',c4,c3,c2,c1) 61 #define HASHNKEY5(n,c5,c4,c3,c2,c1) HASHKEY6((n)+'a',c5,c4,c3,c2,c1) 62 63 #if _BLD_ast && defined(__EXPORT__) 64 #undef __MANGLE__ 65 #define __MANGLE__ __LINKAGE__ __EXPORT__ 66 #endif 67 68 extern __MANGLE__ long strkey __PROTO__((const char*)); 69 70 #undef __MANGLE__ 71 #define __MANGLE__ __LINKAGE__ 72 73 #endif 74