Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most
[dragonfly.git] / games / battlestar / parse.c
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1/*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
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32 *
33 * @(#)parse.c 8.1 (Berkeley) 5/31/93
34 * $FreeBSD: src/games/battlestar/parse.c,v 1.5.2.1 2001/03/05 11:45:36 kris Exp $
35 * $DragonFly: src/games/battlestar/parse.c,v 1.2 2003/06/17 04:25:23 dillon Exp $
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36 */
37
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38#include "externs.h"
39
40static int hash __P((const char *));
41static void install __P((struct wlist *));
42struct wlist *lookup __P((const char *));
43
44void
45wordinit()
46{
47 struct wlist *w;
48
49 for (w = wlist; w->string; w++)
50 install(w);
51}
52
53int
54hash(s)
55 const char *s;
56{
57 int hashval = 0;
58
59 while (*s) {
60 hashval += *s++;
61 hashval *= HASHMUL;
62 hashval &= HASHMASK;
63 }
64 return hashval;
65}
66
67struct wlist *
68lookup(s)
69 const char *s;
70{
71 struct wlist *wp;
72
73 for (wp = hashtab[hash(s)]; wp != NULL; wp = wp->next)
74 if (*s == *wp->string && strcmp(s, wp->string) == 0)
75 return wp;
76 return NULL;
77}
78
79void
80install(wp)
81 struct wlist *wp;
82{
83 int hashval;
84
85 if (lookup(wp->string) == NULL) {
86 hashval = hash(wp->string);
87 wp->next = hashtab[hashval];
88 hashtab[hashval] = wp;
89 } else
90 printf("Multiply defined %s.\n", wp->string);
91}
92
93void
94parse()
95{
96 struct wlist *wp;
97 int n;
98
99 wordnumber = 0; /* for cypher */
100 for (n = 0; n <= wordcount; n++) {
101 if ((wp = lookup(words[n])) == NULL) {
102 wordvalue[n] = -1;
103 wordtype[n] = -1;
104 } else {
105 wordvalue[n] = wp -> value;
106 wordtype[n] = wp -> article;
107 }
108 }
109}