COLCRT

Section: User Commands (1)
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BSD mandoc
 

NAME

colcrt - filter nroff output for CRT previewing  

SYNOPSIS

[- ] [-2 ] [file ... ]  

DESCRIPTION

The utility 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.

The following options are available:

-
Suppress all underlining. This option is especially useful for previewing allboxed tables from tbl(1).
-2
Cause 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.

 

ENVIRONMENT

The LANG , LC_ALL and LC_CTYPE environment variables affect the execution of as described in environ(7).  

EXIT STATUS

Ex -std  

EXAMPLES

A typical use of would be
tbl exum2.n | nroff -ms | colcrt - | more
 

SEE ALSO

col(1), more(1), nroff(1), troff(1), ul(1)  

HISTORY

The command appeared in BSD 3.0  

BUGS

Should fold underlines onto blanks even with the `- ' option so that a true underline character would show.

Cannot 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.

Characters that take up more than one column position may not be underlined correctly.


 

Index

NAME
SYNOPSIS
DESCRIPTION
ENVIRONMENT
EXIT STATUS
EXAMPLES
SEE ALSO
HISTORY
BUGS

This document was created by man2html, using the manual pages.
Time: 19:49:07 GMT, April 27, 2011