DEROFF(1) User Commands DEROFF(1)


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


deroff [-m [m | s | l]] [-w] [-i] [filename...]


deroff reads each of the filenames 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 option may be followed by an m, s, or l. The -mm option
causes the macros to be interpreted so that only running text is
output (that is, no text from macro lines.) The -ml option forces
the -mm option and also causes deletion of lists associated with
the mm macros.

If the -w 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.''

The -i option causes deroff to ignore .so and .nx commands.


eqn(1), nroff(1), tbl(1), troff(1), attributes(7)


deroff is not a complete troff interpreter, so it can be confused by
subtle constructs. Most such errors result in too much rather than too
little output.

The -ml option does not handle nested lists correctly.

September 14, 1992 DEROFF(1)