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      1  1.21    rillig /*	$NetBSD: stoc.c,v 1.21 2022/05/29 00:12:11 rillig Exp $	*/
      2   1.3       cgd 
      3   1.1       tls /*
      4   1.1       tls  * Copyright (c) 1994
      5   1.1       tls  *	The Regents of the University of California.  All rights reserved.
      6   1.1       tls  *
      7   1.1       tls  * This code is derived from software contributed to Berkeley by
      8   1.1       tls  * Ralph Campbell.
      9   1.1       tls  *
     10   1.1       tls  * Redistribution and use in source and binary forms, with or without
     11   1.1       tls  * modification, are permitted provided that the following conditions
     12   1.1       tls  * are met:
     13   1.1       tls  * 1. Redistributions of source code must retain the above copyright
     14   1.1       tls  *    notice, this list of conditions and the following disclaimer.
     15   1.1       tls  * 2. Redistributions in binary form must reproduce the above copyright
     16   1.1       tls  *    notice, this list of conditions and the following disclaimer in the
     17   1.1       tls  *    documentation and/or other materials provided with the distribution.
     18   1.7       agc  * 3. Neither the name of the University nor the names of its contributors
     19   1.1       tls  *    may be used to endorse or promote products derived from this software
     20   1.1       tls  *    without specific prior written permission.
     21   1.1       tls  *
     22   1.1       tls  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23   1.1       tls  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24   1.1       tls  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25   1.1       tls  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26   1.1       tls  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27   1.1       tls  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28   1.1       tls  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29   1.1       tls  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30   1.1       tls  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31   1.1       tls  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32   1.1       tls  * SUCH DAMAGE.
     33   1.1       tls  */
     34   1.1       tls 
     35   1.4     lukem #include <sys/cdefs.h>
     36  1.18    rillig /*	@(#)stoc.c	8.1 (Berkeley) 7/24/94	*/
     37  1.21    rillig __RCSID("$NetBSD: stoc.c,v 1.21 2022/05/29 00:12:11 rillig Exp $");
     38   1.1       tls 
     39   1.4     lukem #include <ctype.h>
     40   1.4     lukem #include <stdlib.h>
     41   1.6      matt #include <string.h>
     42   1.1       tls #include "gomoku.h"
     43   1.1       tls 
     44  1.19    rillig const char	letters[]	= "<ABCDEFGHJKLMNOPQRST>";
     45   1.1       tls 
     46  1.12  dholland 
     47   1.1       tls /*
     48   1.1       tls  * Turn the spot number form of a move into the character form.
     49   1.1       tls  */
     50   1.5       jsm const char *
     51  1.21    rillig stoc(spot_index s)
     52   1.1       tls {
     53   1.1       tls 	static char buf[32];
     54   1.1       tls 
     55  1.20    rillig 	if (s == RESIGN)
     56  1.20    rillig 		return "resign";
     57  1.20    rillig 	if (s == SAVE)
     58  1.20    rillig 		return "save";
     59  1.16    rillig 	snprintf(buf, sizeof(buf), "%c%d",
     60  1.16    rillig 	    letters[s % (BSZ + 1)], s / (BSZ + 1));
     61  1.15    rillig 	return buf;
     62   1.1       tls }
     63   1.1       tls 
     64   1.1       tls /*
     65   1.1       tls  * Turn the character form of a move into the spot number form.
     66   1.1       tls  */
     67  1.21    rillig spot_index
     68  1.10  dholland ctos(const char *mp)
     69   1.1       tls {
     70   1.1       tls 
     71  1.20    rillig 	if (strcmp(mp, "resign") == 0 || strcmp(mp, "quit") == 0)
     72  1.20    rillig 		return RESIGN;
     73  1.20    rillig 	if (strcmp(mp, "save") == 0)
     74  1.20    rillig 		return SAVE;
     75  1.20    rillig 
     76  1.20    rillig 	int letter = toupper((unsigned char)mp[0]);
     77  1.20    rillig 	int x = 1;
     78  1.20    rillig 	while (x <= BSZ && letters[x] != letter)
     79  1.20    rillig 		x++;
     80  1.20    rillig 	if (x > BSZ)
     81  1.15    rillig 		return ILLEGAL;
     82  1.20    rillig 
     83  1.20    rillig 	int y = atoi(&mp[1]);
     84  1.20    rillig 	if (y < 1 || y > 19)
     85  1.15    rillig 		return ILLEGAL;
     86   1.1       tls 
     87  1.20    rillig 	return PT(x, y);
     88   1.1       tls }
     89