2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Jim R. Oldroyd at The Instruction Set and Keith Gabryelski at
7 * Commodore Business Machines.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 static const char copyright[] =
40 "@(#) Copyright (c) 1991, 1993\n\
41 The Regents of the University of California. All rights reserved.\n";
46 static char sccsid[] = "@(#)quiz.c 8.3 (Berkeley) 5/4/95";
48 static const char rcsid[] =
52 #include <sys/types.h>
63 #include "pathnames.h"
66 static int catone, cattwo, tflag;
69 char *appdstr __P((char *, char *, size_t));
70 void downcase __P((char *));
71 void err __P((const char *, ...));
72 void get_cats __P((char *, char *));
73 void get_file __P((char *));
74 char *next_cat __P((char *));
75 void quiz __P((void));
76 void score __P((u_int, u_int, u_int));
77 void show_index __P((void));
78 void usage __P((void));
91 indexfile = _PATH_QUIZIDX;
92 while ((ch = getopt(argc, argv, "i:t")) != -1)
114 get_cats(argv[0], argv[1]);
132 if ((fp = fopen(file, "r")) == NULL)
133 err("%s: %s", file, strerror(errno));
137 * Should really free up space from any earlier read list
138 * but there are no reverse pointers to do so with.
142 while ((lp = fgetln(fp, &len)) != NULL) {
143 if (qp->q_text && qp->q_text[strlen(qp->q_text) - 1] == '\\')
144 qp->q_text = appdstr(qp->q_text, lp, len);
146 if ((qp->q_next = malloc(sizeof(QE))) == NULL)
147 err("%s", strerror(errno));
150 if ((qp->q_text = strdup(lp)) == NULL)
151 err("%s", strerror(errno));
152 qp->q_asked = qp->q_answered = FALSE;
167 if ((pf = popen(_PATH_PAGER, "w")) == NULL)
168 err("%s: %s", _PATH_PAGER, strerror(errno));
169 (void)fprintf(pf, "Subjects:\n\n");
170 for (qp = qlist.q_next; qp; qp = qp->q_next) {
171 for (s = next_cat(qp->q_text); s; s = next_cat(s)) {
174 if ((p = rxp_expand()) != '\0')
175 (void)fprintf(pf, "%s ", p);
177 (void)fprintf(pf, "\n");
179 (void)fprintf(pf, "\n%s\n%s\n%s\n",
180 "For example, \"quiz victim killer\" prints a victim's name and you reply",
181 "with the killer, and \"quiz killer victim\" works the other way around.",
182 "Type an empty line to get the correct answer.");
196 for (qp = qlist.q_next; qp; qp = qp->q_next) {
197 s = next_cat(qp->q_text);
198 catone = cattwo = i = 0;
209 if (catone && cattwo && catone != cattwo) {
210 if (!rxp_compile(qp->q_text))
212 get_file(rxp_expand());
216 err("invalid categories");
225 u_int guesses, rights, wrongs;
227 char *answer, *s, *t, question[LINE_SZ];
230 guesses = rights = wrongs = 0;
234 next = random() % qsize;
236 for (i = 0; i < next; i++)
238 while (qp && qp->q_answered)
244 if (tflag && random() % 100 > 20) {
245 /* repeat questions in tutorial mode */
246 while (qp && (!qp->q_asked || qp->q_answered))
252 for (i = 0; i < catone - 1; i++)
257 if (!t || *t == '\0') {
258 qp->q_answered = TRUE;
261 (void)strcpy(question, t);
263 for (i = 0; i < cattwo - 1; i++)
268 if (!t || *t == '\0') {
269 qp->q_answered = TRUE;
273 (void)printf("%s?\n", question);
275 if ((answer = fgetln(stdin, &len)) == NULL) {
276 score(rights, wrongs, guesses);
279 answer[len - 1] = '\0';
281 if (rxp_match(answer)) {
282 (void)printf("Right!\n");
284 qp->q_answered = TRUE;
287 if (*answer == '\0') {
288 (void)printf("%s\n", t);
291 qp->q_answered = TRUE;
294 (void)printf("What?\n");
297 score(rights, wrongs, guesses);
326 if ((m = malloc(strlen(s) + len + 1)) == NULL)
327 err("%s", strerror(errno));
330 for (; (*mp++ = *sp++););
333 if (*(mp - 1) == '\\')
337 if (mp[len - 1] == '\n')
348 (void)printf("Rights %d, wrongs %d,", r, w);
350 (void)printf(" extra guesses %d,", g);
351 (void)printf(" score %d%%\n", (r + w + g) ? r * 100 / (r + w + g) : 0);
360 for (; (ch = *p); ++p)
361 if (isascii(ch) && isupper(ch))
368 (void)fprintf(stderr, "quiz [-t] [-i file] category1 category2\n");
380 err(const char *fmt, ...)
393 (void)fprintf(stderr, "quiz: ");
394 (void)vfprintf(stderr, fmt, ap);
396 (void)fprintf(stderr, "\n");