deroff - Deletes neqn, nroff, and tbl constructs
deroff [-i | -l] [-kpuw] [-ma | -me | -mm | -ms] file...
deroff [-i | -l] [-kpuw] -mm -ml file...
The deroff command reads the specified files (or standard input by
default), removes all nroff requests, macro calls, backslash constructs,
eqn constructs (between .EQ and .EN lines and between delimiters), and tbl
descriptions, replacing many of them with spaces or blank lines, and writes
the remainder of the file to standard output.
-i Suppresses processing of included files (.so and .nx).
-k Keeps blocks of text specified by requests or macros; for example, the
-l Suppresses processing of included files whose names begin with /usr/lib
(such as macro files in /usr/lib/tmac).
-ma Interprets man macros only.
-me Interprets me macros only.
-ml Ignores mm macros and deletes mm list structures. The -mm option must
be specified with this option.
-mm Interprets ms and mm macros only.
-ms Interprets ms macros only.
-p Performs special paragraph processing.
-u Removes _\b and \b in underlined and boldfaced words. Automatically
sets the -w option.
-w Formats output into a word list, containing one word per line, with all
other characters deleted.
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, 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, ampersands, and apostrophes.
Trailing ampersands and apostrophes are removed from words.
The deroff command normally follows chains of included files (.so and .nx
nroff requests) and processes those files. If a file was already included,
a .so naming it is ignored and a .nx naming it ends execution.
The deroff command is not a complete nroff interpreter, so it may not han-
dle complex constructs well. Most errors result in too much rather than
too little output.
neqn(1), nroff(1), tbl(1)