DEROFF(1) DEROFF(1)
NAME
deroff - remove formatting requests
SYNOPSIS
deroff [ option ... ] file ...
DESCRIPTION
Deroff reads each file in sequence and removes all nroff and
troff(1) requests and non-text arguments, backslash con-
structions, and constructs of preprocessors such as eqn(1),
pic(1), and tbl(1). Remaining text is written on the stan-
dard output. Deroff follows files included by `.so' and
`.nx' commands; if a file has already been included, a `.so'
for that file is ignored and a `.nx' terminates execution.
If no input file is given, deroff reads from standard input.
The options are
-w Output a word list, one `word' (string of letters, dig-
its, and properly embedded ampersands and apostrophes,
beginning with a letter) per line. Other characters
are skipped. Otherwise, the output follows the origi-
nal, with the deletions mentioned above.
-_ Like -w, but consider underscores to be alphanumeric
rather than punctuation.
-i Ignore `.so' and `.nx' requests.
-ms
-mm Remove titles, attachments, etc., as well as ordinary
troff constructs, from ms(6) or mm documents.
-ml Same as -mm, but remove lists as well.
SOURCE
/sys/src/cmd/deroff.c
/sys/src/cmd/tex/local/delatex.c
SEE ALSO
troff(1), spell(1)
BUGS
This filter is not a complete interpreter of troff. For
example, macro definitions containing `\$' cause chaos in
deroff when the popular `$$' delimiters for eqn are in
effect.
Text inside macros is emitted at place of definition, not
place of call.
Page 1 Plan 9 (printed 12/22/24)