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	1	.\" Copyright (c) 1991, 1993
	2	.\" The Regents of the University of California. All rights reserved.
	3	.\"
	4	.\" This code is derived from software contributed to Berkeley by
	5	.\" Jim R. Oldroyd at The Instruction Set.
	6	.\"
	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.
	18	.\"
	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.
	30	.\"
	31	.\" @(#)quiz.6 8.1 (Berkeley) 5/31/93
	32	.\" $FreeBSD: src/games/quiz/quiz.6,v 1.3.2.1 2000/12/08 13:40:05 ru Exp $
	33	.\" $DragonFly: src/games/quiz/quiz.6,v 1.2 2003/06/17 04:25:24 dillon Exp $
	34	.\"
	35	.Dd May 31, 1993
	36	.Dt QUIZ 6
	37	.Os
	38	.Sh NAME
	39	.Nm quiz
	40	.Nd random knowledge tests
	41	.Sh SYNOPSIS
	42	.Nm
	43	.Op Fl t
	44	.Op Fl i Ar file
	45	.Op Ar question answer
	46	.Sh DESCRIPTION
	47	The
	48	.Nm
	49	utility tests your knowledge of random facts.
	50	It has a database of subjects from which you can choose.
	51	With no arguments,
	52	.Nm
	53	displays the list of available subjects.
	54	.Pp
	55	The options are as follows:
	56	.Bl -tag -width indent
	57	.It Fl t
	58	Use tutorial mode, in which questions are repeated later if you didn't get
	59	them right the first time, and new questions are presented less frequently
	60	to help you learn the older ones.
	61	.It Fl i
	62	Specify an alternate index file.
	63	.El
	64	.Pp
	65	Subjects are divided into categories.
	66	You can pick any two categories from the same subject.
	67	.Nm Quiz
	68	will ask questions from the first category and it expects answers from
	69	the second category.
	70	For example, the command ``quiz victim killer'' asks questions which are
	71	the names of victims, and expects you to answer with the cause of their
	72	untimely demise, whereas the command ``quiz killer victim'' works the
	73	other way around.
	74	.Pp
	75	If you get the answer wrong,
	76	.Nm
	77	lets you try again.
	78	To see the right answer, enter a blank line.
	79	.Sh "Index and Data File Syntax"
	80	The index and data files have a similar syntax.
	81	Lines in them consist of several categories separated by colons.
	82	The categories are regular expressions formed using the following
	83	meta-characters:
	84	.Pp
	85	.Bl -tag -width "pat\|pat" -compact -offset indent
	86	.It pat\|pat
	87	alternate patterns
	88	.It {pat}
	89	optional pattern
	90	.It [pat]
	91	delimiters, as in pat[pat\|pat]pat
	92	.El
	93	.Pp
	94	In an index file, each line represents a subject.
	95	The first category in each subject is the pathname of the data file for
	96	the subject.
	97	The remaining categories are regular expressions for the titles of each
	98	category in the subject.
	99	.Pp
	100	In data files, each line represents a question/answer set.
	101	Each category is the information for the question/answer for that category.
	102	.Pp
	103	The backslash character (``\e'') is used to quote syntactically significant
	104	characters, or at the end of a line to signify that a continuation line
	105	follows.
	106	.Pp
	107	If either a question or its answer is empty,
	108	.Nm
	109	will refrain from asking it.
	110	.Sh FILES
	111	.Bl -tag -width /usr/share/games/quiz.db -compact
	112	.It Pa /usr/share/games/quiz.db
	113	The default index and data files.
	114	.El
	115	.Sh BUGS
	116	.Nm Quiz
	117	is pretty cynical about certain subjects.