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- /*
- * Copyright (c) 1983 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
- static char sccsid[] = "@(#)parse.c 5.3 (Berkeley) 6/1/90";
- #endif /* not lint */
-
- #include "externs.h"
-
- wordinit()
- {
- register struct wlist *w;
-
- for (w = wlist; w->string; w++)
- install(w);
- }
-
- hash(s)
- register char *s;
- {
- register hashval = 0;
-
- while (*s) {
- hashval += *s++;
- hashval *= HASHMUL;
- hashval &= HASHMASK;
- }
- return hashval;
- }
-
- struct wlist *
- lookup(s)
- char *s;
- {
- register 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;
- }
-
- install(wp)
- register 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);
- }
-
- parse()
- {
- register struct wlist *wp;
- register 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;
- }
- }
- }
-