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[netbsd-mini2440.git] / games / monop / getinp.c
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1 /* $NetBSD: getinp.c,v 1.17 2008/02/23 20:12:15 dholland Exp $ */
3 /*
4 * Copyright (c) 1980, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)getinp.c 8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: getinp.c,v 1.17 2008/02/23 20:12:15 dholland Exp $");
38 #endif
39 #endif /* not lint */
41 #include <stdio.h>
42 #include <string.h>
43 #include <ctype.h>
45 #include "monop.h"
47 #define LINE 70
49 static char buf[257];
51 static int comp(const char *);
53 int
54 getinp(prompt, lst)
55 const char *prompt, *const lst[];
57 int i, n_match, match = 0;
58 char *sp;
60 for (;;) {
61 printf("%s", prompt);
62 fgets(buf, sizeof(buf), stdin);
63 if (feof(stdin)) {
64 return 0;
66 if (buf[0] == '?' && buf[1] == '\n') {
67 printf("Valid inputs are: ");
68 for (i = 0, match = 18; lst[i]; i++) {
69 if ((match+=(n_match=strlen(lst[i]))) > LINE) {
70 printf("\n\t");
71 match = n_match + 8;
73 if (*lst[i] == '\0') {
74 match += 8;
75 printf("<RETURN>");
77 else
78 printf("%s", lst[i]);
79 if (lst[i+1])
80 printf(", ");
81 else
82 putchar('\n');
83 match += 2;
85 continue;
87 if ((sp = strchr(buf, '\n')) != NULL)
88 *sp = '\0';
89 for (sp = buf; *sp; sp++)
90 *sp = tolower((unsigned char)*sp);
91 for (i = n_match = 0; lst[i]; i++)
92 if (comp(lst[i])) {
93 n_match++;
94 match = i;
96 if (n_match == 1)
97 return match;
98 else if (buf[0] != '\0')
99 printf("Illegal response: \"%s\". "
100 "Use '?' to get list of valid answers\n", buf);
104 static int
105 comp(s1)
106 const char *s1;
108 const char *sp, *tsp;
109 char c;
111 if (buf[0] != '\0')
112 for (sp = buf, tsp = s1; *sp; ) {
113 c = tolower((unsigned char)*tsp);
114 tsp++;
115 if (c != *sp++)
116 return 0;
118 else if (*s1 != '\0')
119 return 0;
120 return 1;