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 * @(#)stoc.c 8.1 (Berkeley) 7/24/94 35 */ 36 37 #include <ctype.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include "gomoku.h" 41 42 const char *letters = "<ABCDEFGHJKLMNOPQRST>"; 43 44 struct mvstr { 45 int m_code; 46 const char *m_text; 47 }; 48 static const struct mvstr mv[] = { 49 { RESIGN, "resign" }, 50 { RESIGN, "quit" }, 51 { SAVE, "save" }, 52 { -1, 0 } 53 }; 54 55 static int lton(int); 56 57 58 /* 59 * Turn the spot number form of a move into the character form. 60 */ 61 const char * 62 stoc(int s) 63 { 64 static char buf[32]; 65 int i; 66 67 for (i = 0; mv[i].m_code >= 0; i++) 68 if (s == mv[i].m_code) 69 return(mv[i].m_text); 70 snprintf(buf, sizeof(buf), "%c%d", letters[s % BSZ1], s / BSZ1); 71 return(buf); 72 } 73 74 /* 75 * Turn the character form of a move into the spot number form. 76 */ 77 int 78 ctos(const char *mp) 79 { 80 int i; 81 82 for (i = 0; mv[i].m_code >= 0; i++) 83 if (strcmp(mp, mv[i].m_text) == 0) 84 return(mv[i].m_code); 85 if (!isalpha((unsigned char)mp[0])) 86 return(ILLEGAL); 87 i = atoi(&mp[1]); 88 if (i < 1 || i > 19) 89 return(ILLEGAL); 90 return(PT(lton((unsigned char)mp[0]), i)); 91 } 92 93 /* 94 * Turn a letter into a number. 95 */ 96 static int 97 lton(int c) 98 { 99 int i; 100 101 if (islower(c)) 102 c = toupper(c); 103 for (i = 1; i <= BSZ && letters[i] != c; i++) 104 ; 105 return(i); 106 } 107