1 /* $NetBSD: stoc.c,v 1.12 2009/08/12 06:19:17 dholland 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)stoc.c 8.1 (Berkeley) 7/24/94"; 39 #else 40 __RCSID("$NetBSD: stoc.c,v 1.12 2009/08/12 06:19:17 dholland Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 #include <ctype.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include "gomoku.h" 48 49 const char *letters = "<ABCDEFGHJKLMNOPQRST>"; 50 51 struct mvstr { 52 int m_code; 53 const char *m_text; 54 }; 55 static const struct mvstr mv[] = { 56 { RESIGN, "resign" }, 57 { RESIGN, "quit" }, 58 { SAVE, "save" }, 59 { -1, 0 } 60 }; 61 62 static int lton(int); 63 64 65 /* 66 * Turn the spot number form of a move into the character form. 67 */ 68 const char * 69 stoc(int s) 70 { 71 static char buf[32]; 72 int i; 73 74 for (i = 0; mv[i].m_code >= 0; i++) 75 if (s == mv[i].m_code) 76 return(mv[i].m_text); 77 snprintf(buf, sizeof(buf), "%c%d", letters[s % BSZ1], s / BSZ1); 78 return(buf); 79 } 80 81 /* 82 * Turn the character form of a move into the spot number form. 83 */ 84 int 85 ctos(const char *mp) 86 { 87 int i; 88 89 for (i = 0; mv[i].m_code >= 0; i++) 90 if (strcmp(mp, mv[i].m_text) == 0) 91 return(mv[i].m_code); 92 if (!isalpha((unsigned char)mp[0])) 93 return(ILLEGAL); 94 i = atoi(&mp[1]); 95 if (i < 1 || i > 19) 96 return(ILLEGAL); 97 return(PT(lton((unsigned char)mp[0]), i)); 98 } 99 100 /* 101 * Turn a letter into a number. 102 */ 103 static int 104 lton(int c) 105 { 106 int i; 107 108 if (islower(c)) 109 c = toupper(c); 110 for (i = 1; i <= BSZ && letters[i] != c; i++) 111 ; 112 return(i); 113 } 114