colcrt(1) [ultrix man page]

colcrt(1)						      General Commands Manual							 colcrt(1)

Name
       colcrt - filter nroff output for CRT previewing

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

Description
       The  command 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.

Options
       -  Suppresses all underlining.  It is especially useful for previewing allboxed tables from

       -2 Causes half-lines to be printed, 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 would be:
       tbl exum2.n | nroff -ms | colcrt - | more

Restrictions
       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.

See Also
       col(1), more(1), nroff(1), ul(1)

																	 colcrt(1)

COLCRT(1)						    BSD General Commands Manual 						 COLCRT(1)

NAME

     colcrt -- filter nroff output for CRT previewing

SYNOPSIS

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

DESCRIPTION

     The colcrt utility provides virtual half-line and reverse line feed sequences for terminals without such capability, and on which overstrik-
     ing 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 colcrt as described in environ(7).

EXAMPLES

     A typical use of colcrt would be

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

DIAGNOSTICS

     The colcrt utility exits 0 on success, and >0 if an error occurs.

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.

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

HISTORY

     The colcrt command appeared in 3.0BSD.

BSD
								   July 31, 2004							       BSD