/* $OpenBSD: parse.c,v 1.6 1999/09/25 20:30:46 pjanzen Exp $ */ /* $NetBSD: parse.c,v 1.3 1995/03/21 15:07:48 cgd Exp $ */ /* * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint #if 0 static char sccsid[] = "@(#)parse.c 8.2 (Berkeley) 4/28/95"; #else static char rcsid[] = "$OpenBSD: parse.c,v 1.6 1999/09/25 20:30:46 pjanzen Exp $"; #endif #endif /* not lint */ #include "extern.h" void wordinit() { struct wlist *w; for (w = wlist; w->string; w++) install(w); } int hash(s) const char *s; { int hashval = 0; while (*s) { hashval += *s++; hashval *= HASHMUL; hashval &= HASHMASK; } return hashval; } struct wlist * lookup(s) const char *s; { struct wlist *wp; for (wp = hashtab[hash(s)]; wp != NULL; wp = wp->next) if (*s == *wp->string && strcmp(s, wp->string) == 0) return wp; return NULL; } void install(wp) struct wlist *wp; { int hashval; if (lookup(wp->string) == NULL) { hashval = hash(wp->string); wp->next = hashtab[hashval]; hashtab[hashval] = wp; } else printf("Multiply defined %s.\n", wp->string); } void parse() { struct wlist *wp; int n; wordnumber = 0; /* for cypher */ for (n = 0; n <= wordcount; n++) { if ((wp = lookup(words[n])) == NULL) { wordvalue[n] = -1; wordtype[n] = -1; } else { wordvalue[n] = wp->value; wordtype[n] = wp->article; } } }