MirBSD manpage: colcrt(1)

COLCRT(1)                    BSD Reference Manual                    COLCRT(1)


     colcrt - filter nroff output for CRT previewing


     colcrt [-] [-2] [file ...]


     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 con-
             secutive empty lines, however. The -2 option is useful for send-
             ing output to the line printer when the output contains super-
             scripts and subscripts which would otherwise be invisible.


     A typical use of colcrt would be

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


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


     The colcrt command appeared in 3.0BSD.


     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.

MirBSD #10-current              June 30, 1993                                1

Generated on 2022-12-24 01:00:14 by $MirOS: src/scripts/roff2htm,v 1.113 2022/12/21 23:14:31 tg Exp $ — This product includes material provided by mirabilos.

These manual pages and other documentation are copyrighted by their respective writers; their sources are available at the project’s CVSweb, AnonCVS and other mirrors. The rest is Copyright © 2002–2022 MirBSD.

This manual page’s HTML representation is supposed to be valid XHTML/1.1; if not, please send a bug report — diffs preferred.

Kontakt / Impressum & Datenschutzerklärung