deroff(1) deroff(1)
NAME
deroff - remove nroff/troff, tbl, and eqn constructs
SYNOPSIS
deroff [-mx] [-w] [files]
DESCRIPTION
deroff reads each of the files in sequence and removes all
troff(1) requests, macro calls, backslash constructs, eqn(1)
constructs (between .EQ and .EN lines, and between
delimiters), and tbl(1) descriptions, perhaps replacing them
with white space (blanks and blank lines), and writes the
remainder of the file on the standard output. deroff
follows chains of included files (.so and .nx troff
commands); if a file has already been included, a .so naming
that file is ignored and a .nx naming that file terminates
execution. If no input file is given, deroff reads the
standard input.
The -m flag option may be followed by an m, s, or l. The
-mm flag option causes the macros be interpreted so that
only running text is output (i.e., no text from macro
lines.) The -ml flag option forces the -mm flag option and
also causes deletion of lists associated with the mm macros.
If the -w flag option is given, the output is a word list,
one word per line, with all other characters deleted.
Otherwise, the output follows the original, with the
deletions mentioned above. In text, a word is any string
that contains at least two letters and is composed of
letters, digits, ampersands (&), and apostrophes ('); in a
macro call, however, a word is a string that begins with at
least two letters and contains a total of at least three
letters. Delimiters are any characters other than letters,
digits, apostrophes, and ampersands. Trailing apostrophes
and ampersands are removed from words.
EXAMPLE
deroff textfile
removes all nroff, troff, and macro definitions from
textfile.
FILES
/usr/bin/deroff
SEE ALSO
eqn(1), nroff(1), tbl(1), troff(1).
BUGS
deroff is not a complete troff interpreter, so it can be
confused by subtle constructs. Most such errors result in
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deroff(1) deroff(1)
too much rather than too little output.
The -ml flag option does not handle nested lists correctly.
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