.\"
.\" UnixCW CW Tutor Package - CWGEN
.\" Copyright (C) 2001-2006  Simon Baldwin (simon_baldwin@yahoo.com)
.\" Copyright (C) 2011-2021  Kamil Ignacak (acerion@wp.pl)
.\"
.\" This program is free software; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License
.\" as published by the Free Software Foundation; either version 2
.\" of the License, or (at your option) any later version.
.\"
.\" This program is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public License along
.\" with this program; if not, write to the Free Software Foundation, Inc.,
.\" 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
.\"
.\"
.TH CWGEN 1 "CW Tutor Package" "cwgen ver. 3.6.0" \" -*- nroff -*-
.SH NAME
.\"
cwgen \- generate groups of random characters for Morse code practice
.\"
.\"
.\"
.SH SYNOPSIS
.\"
.B cwgen
[\-g\ \-\-groups=\fIgroups\fP]
[\-n\ \-\-groupsize=\fIgroupsize\fP]
[\-n\ \-\-groupsize=\fIgroup_min-group_max\fP]
[\-r\ \-\-repeat=\fIrepeat\fP]
[\-x\ \-\-limit=\fIlimit\fP]
[\-c\ \-\-charset=\fIcharset\fP]
.BR
[\-h\ \-\-help]
[\-V\ \-\-version]
.PP
\fBcwgen\fP installed on GNU/Linux systems understands both short form
and long form command line options.  \fBcwgen\fP installed on other
operating systems may understand only the short form options.
.PP
Options may be predefined in the environment variable \fBCWGEN_OPTIONS\fP.
If defined, these options are used first; command line options take
precedence.
.PP
.\"
.\"
.\"
.SH DESCRIPTION
.\"
.PP
.B cwgen
provides a simple method to generate groups of random characters for
use as input into \fBcw\fP.  Command line options control the group
size, number of groups, and character set from which the random
characters are selected.
.PP
.\"
.\"
.\"
.SS COMMAND LINE OPTIONS
.\"
.B cwgen
understands the following command line options.  The long form options
may not be available in non-LINUX versions.
.TP
.I "\-g, \-\-groups"
Specifies the number of groups of random characters to generate.  The
default value is 128.
.TP
.I "\-n, \-\-groupsize"
Specifies either the number of random characters in each group, if a
single value is given, or a range for the number of random characters
in each group if a dash-separated pair of values is given.  If a range
is given, \fBcwgen\fP generates groups sized randomly between 'group_min'
and 'group_max'.  The default value is 5.
.TP
.I "\-r, \-\-repeat"
Specifies the number of times to repeat each group.  The default value
is 0, indicating that each group is printed just once.
.TP
.I "\-x, \-\-limit"
Specifies an upper limit on the number of characters printed.  This option
is useful when using random group sizes, to ensure a given amount of
practice text.  The default value is 0, indicating no upper limit on the
number of characters printed.
.TP
.I "\-c, \-\-charset"
Defines the character set from which the random characters are
selected.  The default value is 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'.
.PP
.\"
.\"
.\"
.SH EXAMPLES
.\"
Generate 20 groups of 10 characters from the set EISH5, and sound
them as Morse code.  Both short-form and long-form option examples
are shown:
.IP
cwgen \-g 20 \-n 10 \-c "EISH5" | cw \-w 25 \-t 850
.IP
cwgen \-\-groups=20 \-\-groupsize=10 \-\-charset="EISH5" |
cw \-\-wpm=25 \-\-tone=850
.PP
.\"
.\"
.\"
.SH SEE ALSO
.\"
Man pages for \fBcw\fP(7,LOCAL), \fBlibcw\fP(3,LOCAL), \fBcw\fP(1,LOCAL),
\fBcwcp\fP(1,LOCAL), and \fBxcwcp\fP(1,LOCAL).
.\"