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COLCRT


Section: User Commands (1)
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BSD mandoc

BSD 3

 

NAME

colcrt

– filter nroff output for CRT previewing

 

SYNOPSIS

colcrt

[-

]

[-2

]

[file ...

]

 

DESCRIPTION

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.

Available options:


-



Suppress all underlining.
This option is especially useful for previewing
allboxed

tables from
tbl(1).

-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
-2

option is useful for sending output to the line printer when the output
contains superscripts and subscripts which would otherwise be invisible.


 

EXAMPLES

A typical use of
colcrt

would be


tbl exum2.n | nroff -ms | colcrt – | more

 

SEE ALSO

nroff(1),

troff(1),

col(1),

more(1),

ul(1)

 

BUGS

Should fold underlines onto blanks even with the
`-

option
so that
a true underline character would show.

Can’t back up more than 102 lines.

General overstriking is lost;
as a special case
`|’

overstruck with
`-‘

or underline becomes
`+’

Lines are trimmed to 132 characters.

Some provision should be made for processing superscripts and subscripts
in documents which are already double-spaced.
 

HISTORY

The
colcrt

command appeared in
BSD 3.0

 

AVAILABILITY

The colcrt command is part of the util-linux-ng package and is available from
ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.



 

Index



NAME

SYNOPSIS

DESCRIPTION

EXAMPLES

SEE ALSO

BUGS

HISTORY

AVAILABILITY



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