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Annotation of 43BSDReno/usr.bin/colcrt/colcrt.1, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1980, 1990 The Regents of the University of California.
                      2: .\" All rights reserved.
                      3: .\"
                      4: .\" Redistribution and use in source and binary forms are permitted provided
                      5: .\" that: (1) source distributions retain this entire copyright notice and
                      6: .\" comment, and (2) distributions including binaries display the following
                      7: .\" acknowledgement:  ``This product includes software developed by the
                      8: .\" University of California, Berkeley and its contributors'' in the
                      9: .\" documentation or other materials provided with the distribution and in
                     10: .\" all advertising materials mentioning features or use of this software.
                     11: .\" Neither the name of the University nor the names of its contributors may
                     12: .\" be used to endorse or promote products derived from this software without
                     13: .\" specific prior written permission.
                     14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     17: .\"
                     18: .\"     @(#)colcrt.1   6.6 (Berkeley) 7/24/90
                     19: .\"
                     20: .Dd July 24, 1990
                     21: .Dt COLCRT 1
                     22: .OS BSD 3
                     23: .Sh NAME
                     24: .Nm colcrt
                     25: .Nd filter nroff output for CRT previewing
                     26: .Sh SYNOPSIS
                     27: .Nm colcrt
                     28: .Op Fl
                     29: .Op Fl \&2
                     30: .Ar
                     31: .Sh DESCRIPTION
                     32: .Nm Colcrt
                     33: provides virtual half-line and reverse line feed sequences
                     34: for terminals without such capability, and on which overstriking
                     35: is destructive.
                     36: Half-line characters and underlining (changed to dashing `\-')
                     37: are placed on new lines in between the normal output lines.
                     38: .Pp
                     39: .Tw Ds
                     40: .Tp Fl
                     41: Suppress all underlining.
                     42: It is especially useful for previewing
                     43: .Ar allboxed
                     44: tables from
                     45: .Xr tbl 1 .
                     46: .Pp
                     47: .Tp Fl 2
                     48: Causes all half-lines to be printed, effectively double spacing the output.
                     49: Normally, a minimal space output format is used which will suppress empty
                     50: lines.
                     51: The program never suppresses two consecutive empty lines, however.
                     52: The
                     53: .Fl 2
                     54: option is useful for sending output to the line printer when the output
                     55: contains superscripts and subscripts which would otherwise be invisible.
                     56: .Tp
                     57: .Pp
                     58: A typical use of
                     59: .Nm colcrt
                     60: would be
                     61: .Pp
                     62: .Dl tbl exum2.n \&| nroff \-ms \&| colcrt \- \&| more
                     63: .Sh SEE ALSO
                     64: .Xr nroff 1 ,
                     65: .Xr troff 1 ,
                     66: .Xr col 1 ,
                     67: .Xr more 1 ,
                     68: .Xr ul 1
                     69: .Sh HISTORY
                     70: Appeared in 3 BSD.
                     71: .Sh BUGS
                     72: Should fold underlines onto blanks even with the
                     73: .Sq Fl
                     74: option so that
                     75: a true underline character would show; if we did this, however,
                     76: .Nm colcrt
                     77: wouldn't get rid of
                     78: .Ar cu'd
                     79: underlining
                     80: completely.
                     81: .Pp
                     82: Can't back up more than 102 lines.
                     83: .Pp
                     84: General overstriking is lost;
                     85: as a special case `\&|' overstruck with `\-' or underline becomes `+'.
                     86: .Pp
                     87: Lines are trimmed to 132 characters.
                     88: .Pp
                     89: Some provision should be made for processing superscripts and subscripts
                     90: in documents which are already double-spaced.

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