NAME
deroff - remove nroff, troff, tbl and eqn constructs

SYNOPSIS
deroff [ -w ] file ...

DESCRIPTION
Deroff reads each file in sequence and removes all nroff(1) and
troff(1) command lines, backslash constructions, macro definitions,
eqn constructs (between ‘.EQ’ and ‘.EN’ lines or between
delimiters), and table descriptions and writes the remainder on 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 file.

If the -w flag is given, the output is 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. Otherwise, the output follows the original, with the
deletions mentioned above.

SEE ALSO
troff(1), eqn(1), tbl(1)

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.