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Command: deroff | Section: 1 | Source: OpenBSD | File: deroff.1
DEROFF(1) FreeBSD General Commands Manual DEROFF(1)
NAME
deroff - remove nroff/troff, eqn, pic and tbl constructs
SYNOPSIS
deroff [-ikpw] [-m a | e | l | m | s] [file ...]
DESCRIPTION
deroff reads each file in sequence and removes all roff command lines,
backslash constructions, macro definitions, eqn constructs (between ".EQ"
and ".EN" lines or between delimiters), pic pictures, and table
descriptions and writes the remainder to the standard output. deroff
follows chains of included files (".so" and ".nx" commands); if a file
has already been included, a ".so" is ignored and a ".nx" terminates
execution. If no input file is given, deroff reads from the standard
input.
The options are as follows:
-i Ignore ".so" and ".nx" commands.
-k Keep blocks of text intact. This is the default behavior unless
the -m option is given.
-m Enable support for common macro packages. The -m option takes
the following arguments:
a recognize man(7) macros.
e recognize me macros.
l remove list constructs.
m recognize mm macros.
s recognize ms macros.
-p Preserve paragraph macros. This option only has an effect if the
-m option is also specified.
-w Output a word list, one `word' (string of letters, digits, and
apostrophes, beginning with a letter; apostrophes are removed)
per line, and all other characters ignored. Normally, the output
follows the original, with the deletions mentioned above.
SEE ALSO
man(7)
HISTORY
deroff first appeared outside of Bell Labs in PWB/UNIX 1.0. It did not
appear in freely redistributable BSD releases for licensing reasons.
After Caldera relicensed early UNIX releases the 4.4BSD version was added
to OpenBSD 3.1.
AUTHORS
Lorinda Cherry at the Bell Labs Computing Science Research Center.
BUGS
deroff is not a complete troff interpreter, so it can be confused by
subtle constructs. Most errors result in too much rather than too little
output.
The -ml option does not correctly handle nested lists.
FreeBSD 14.1-RELEASE-p8 December 28, 2022 FreeBSD 14.1-RELEASE-p8