110 lines
3.5 KiB
Groff
110 lines
3.5 KiB
Groff
.\" Copyright (c) 1980, 1990, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)colcrt.1 8.1 (Berkeley) 6/30/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 30, 1993
|
|
.Dt COLCRT 1
|
|
.Os BSD 3
|
|
.Sh NAME
|
|
.Nm colcrt
|
|
.Nd filter nroff output for CRT previewing
|
|
.Sh SYNOPSIS
|
|
.Nm colcrt
|
|
.Op Fl
|
|
.Op Fl \&2
|
|
.Op Ar
|
|
.Sh DESCRIPTION
|
|
.Nm Colcrt
|
|
provides virtual half-line and reverse line feed sequences
|
|
for terminals without such capability, and on which overstriking
|
|
is destructive.
|
|
Half-line characters and underlining (changed to dashing `\-')
|
|
are placed on new lines in between the normal output lines.
|
|
.Pp
|
|
Available options:
|
|
.Bl -tag -width Ds
|
|
.It Fl
|
|
Suppress all underlining.
|
|
This option is especially useful for previewing
|
|
.Em allboxed
|
|
tables from
|
|
.Xr tbl 1 .
|
|
.It Fl 2
|
|
Causes all half-lines to be printed, effectively double spacing the output.
|
|
Normally, a minimal space output format is used which will suppress empty
|
|
lines.
|
|
The program never suppresses two consecutive empty lines, however.
|
|
The
|
|
.Fl 2
|
|
option is useful for sending output to the line printer when the output
|
|
contains superscripts and subscripts which would otherwise be invisible.
|
|
.El
|
|
.Sh EXAMPLES
|
|
A typical use of
|
|
.Nm colcrt
|
|
would be
|
|
.Bd -literal
|
|
tbl exum2.n \&| nroff \-ms \&| colcrt \- \&| more
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr col 1 ,
|
|
.Xr more 1 ,
|
|
.Xr nroff 1 ,
|
|
.Xr troff 1 ,
|
|
.Xr ul 1
|
|
.Sh BUGS
|
|
Should fold underlines onto blanks even with the
|
|
.Ql Fl
|
|
option so that
|
|
a true underline character would show.
|
|
.Pp
|
|
Can't back up more than 102 lines.
|
|
.Pp
|
|
General overstriking is lost;
|
|
as a special case
|
|
.Ql \&|
|
|
overstruck with
|
|
.Ql \-
|
|
or underline becomes
|
|
.Ql \&+ .
|
|
.Pp
|
|
Lines are trimmed to 132 characters.
|
|
.Pp
|
|
Some provision should be made for processing superscripts and subscripts
|
|
in documents which are already double-spaced.
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command appeared in
|
|
.Bx 3.0 .
|