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133 lines
2.6 KiB
Plaintext
133 lines
2.6 KiB
Plaintext
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COLCRT (1) Commands and Applications COLCRT (1)
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NAME
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colcrt - filter nroff output for CRT previewing
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SYNOPSIS
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colcrt [ - ] [ -2 ] [ file ... ]
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colcrt -V
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DESCRIPTION
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Colcrt provides virtual half-line and reverse line feed
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sequences for terminals without such capability, and on which
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overstriking is destructive. Half-line characters and
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underlining (changed to dashing `-') are placed on new lines in
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between the normal output lines.
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OPTIONS
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-
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Suppress all underlining. This option is especially
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useful for previewing allboxed tables from tbl(1).
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-2
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Causes all half-lines to be printed, effectively double
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spacing the output. Normally, a minimal space output
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format is used which will suppress empty lines. The
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program never suppresses two consecutive empty lines,
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however. The -2 option is useful for sending output to
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the line printer when the output contains superscripts
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and subscripts which would otherwise be invisible.
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-V
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Prints version information and exits.
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EXAMPLES
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A typical use of colcrt would be
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tbl exum2.n | nroff -ms | colcrt - | more
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BUGS
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Should fold underlines onto blanks even with the - option so
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that a true underline character would show.
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Can't back up more than 102 lines.
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General overstriking is lost; as a special case | overstruck
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with - or underline becomes +.
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Lines are trimmed to 132 characters.
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Some provision should be made for processing superscripts and
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subscripts in documents which are already double-spaced.
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GNO January 22, 1998 Page 1
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COLCRT (1) Commands and Applications COLCRT (1)
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HISTORY
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The colcrt command appeared in 3.0BSD.
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ATTRIBUTIONS
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This command was ported from FreeBSD source code for
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distribution with GNO/ME 2.0.6.
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This program contains material from the ORCA/C Run-Time
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Libraries, copyright 1987-1998 by Byte Works, Inc. Used with
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permission.
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SEE ALSO
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col(1), more(1), nroff(1), troff(1), ul(1)
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GNO January 22, 1998 Page 2
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