4.3BSD - /usr/man/cat1/deroff.0

DEROFF(1)                                                            DEROFF(1)


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

SYNOPSIS
       deroff [ -w ] file ...

DESCRIPTION
       Deroff reads each file in sequence and removes all nroff and troff com‐
       mand 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; apostro‐
       phes are removed) per line, and all other characters  ignored.   Other‐
       wise,  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 lit‐
       tle output.


7th Edition                     April 29, 1985                       DEROFF(1)