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colcrt(1)

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RocketLink!--> Man page versions: OpenBSD FreeBSD NetBSD RedHat Others



COLCRT(1)                  OpenBSD Reference Manual                  COLCRT(1)

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 destruc-
     tive.  Half-line characters and underlining (changed to dashing `-') are
     placed on new lines in between the normal output lines.

     The options are as follows:

     -       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
     col(1),  more(1),  nroff(1),  troff(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 3.0BSD.

OpenBSD 2.6                      June 30, 1993                               1

Source: OpenBSD 2.6 man pages. Copyright: Portions are copyrighted by BERKELEY
SOFTWARE DESIGN, INC., The Regents of the University of California, Massachusetts
Institute of Technology, Free Software Foundation, FreeBSD Inc., and others.



(Corrections, notes, and links courtesy of RocketAware.com)


[Detailed Topics]
FreeBSD Sources for colcrt(1)
OpenBSD sources for colcrt(1)


[Overview Topics]

Up to: Text File Output - Methods of printing and displaying text files.
Up to: File Viewers - Viewing the contents of files in various forms.
Up to: File filtering and processing - Methods of filtering and processing files. (character translation, comparison, search, sort, word counts, etc.)


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