stoc.c revision 1.3 
1/*	$NetBSD: stoc.c,v 1.3 1997/01/03 01:35:31 cgd Exp $	*/
2
3/*
4 * Copyright (c) 1994
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the University of
21 *	California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 */
38
39#ifndef lint
40#if 0
41static char sccsid[] = "@(#)stoc.c	8.1 (Berkeley) 7/24/94";
42#else
43static char rcsid[] = "$NetBSD: stoc.c,v 1.3 1997/01/03 01:35:31 cgd Exp $";
44#endif
45#endif /* not lint */
46
47#include "gomoku.h"
48#include <ctype.h>
49
50char	*letters	= "<ABCDEFGHJKLMNOPQRST>";
51
52struct mvstr {
53	int	m_code;
54	char	*m_text;
55};
56static	struct	mvstr	mv[] = {
57	RESIGN,		"resign",
58	RESIGN,		"quit",
59	SAVE,		"save",
60	-1,		0
61};
62
63/*
64 * Turn the spot number form of a move into the character form.
65 */
66char *
67stoc(s)
68	int s;
69{
70	static char buf[32];
71	register int i;
72
73	for (i = 0; mv[i].m_code >= 0; i++)
74		if (s == mv[i].m_code)
75			return(mv[i].m_text);
76	sprintf(buf, "%c%d", letters[s % BSZ1], s / BSZ1);
77	return(buf);
78}
79
80/*
81 * Turn the character form of a move into the spot number form.
82 */
83ctos(mp)
84	char *mp;
85{
86	register int i;
87
88	for (i = 0; mv[i].m_code >= 0; i++)
89		if (strcmp(mp, mv[i].m_text) == 0)
90			return(mv[i].m_code);
91	if (!isalpha(mp[0]))
92		return(ILLEGAL);
93	i = atoi(&mp[1]);
94	if (i < 1 || i > 19)
95		return(ILLEGAL);
96	return(PT(lton(mp[0]), i));
97}
98
99/*
100 * Turn a letter into a number.
101 */
102lton(c)
103	int c;
104{
105	register int i;
106
107	if (islower(c))
108		c = toupper(c);
109	for (i = 1; i <= BSZ && letters[i] != c; i++)
110		;
111	return(i);
112}
113