colcrt - filter nroff output for CRT previewing
colcrt [options] [file...]
COLCRT(1) User Commands COLCRT(1) NAME colcrt - filter nroff output for CRT previewing SYNOPSIS colcrt [options] [file...] DESCRIPTION colcrt 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 -, --no-underlining Suppress all underlining. This option is especially useful for previewing allboxed tables from tbl(1). -2, --half-lines 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. -V, --version Display version information and exit. -h, --help Display help text and exit. EXAMPLES A typical use of colcrt would be: tbl exum2.n | nroff -ms | colcrt - | more ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+---------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+---------------------+ |Availability | text/text-utilities | +---------------+---------------------+ |Stability | Uncommitted | +---------------+---------------------+ SEE ALSO nroff(1), troff(1), col(1), more(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 sub- scripts in documents which are already double-spaced. HISTORY The colcrt command appeared in 3.0BSD. AVAILABILITY The colcrt command is part of the util-linux package and is available from Linux Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils/util- linux/>. NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://www.ker- nel.org/pub/linux/utils/util-linux/v2.29/util-linux-2.29.tar.xz. Further information about this software can be found on the open source community website at https://www.kernel.org/pub/linux/utils/util-linux. util-linux September 2011 COLCRT(1)