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/* $OpenBSD: stoc.c,v 1.8 2009/10/27 23:59:24 deraadt Exp $ */
/*
* Copyright (c) 1994
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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. 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.
*/
#include "gomoku.h"
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
char *letters = "<ABCDEFGHJKLMNOPQRST>";
struct mvstr {
int m_code;
char *m_text;
};
static struct mvstr mv[] = {
{RESIGN, "resign" },
{RESIGN, "quit" },
{SAVE, "save" },
{-1, 0}
};
/*
* Turn the spot number form of a move into the character form.
*/
char *
stoc(s)
int s;
{
static char buf[32];
int i;
for (i = 0; mv[i].m_code >= 0; i++)
if (s == mv[i].m_code)
return(mv[i].m_text);
snprintf(buf, sizeof buf, "%c%d", letters[s % BSZ1], s / BSZ1);
return(buf);
}
/*
* Turn the character form of a move into the spot number form.
*/
int
ctos(mp)
char *mp;
{
int i;
for (i = 0; mv[i].m_code >= 0; i++)
if (strcmp(mp, mv[i].m_text) == 0)
return(mv[i].m_code);
if (!isalpha(mp[0]))
return(ILLEGAL);
i = atoi(&mp[1]);
if (i < 1 || i > 19)
return(ILLEGAL);
return(PT(lton(mp[0]), i));
}
/*
* Turn a letter into a number.
*/
int
lton(c)
int c;
{
int i;
if (islower(c))
c = toupper(c);
for (i = 1; i <= BSZ && letters[i] != c; i++)
;
return(i);
}
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