deroff
—
remove nroff/troff, eqn, pic and tbl constructs
deroff |
[-ikpw ] [-m
a | e |
l | m |
s] [file ...] |
deroff
reads each file in sequence and removes all
nroff(1) and
troff(1) command lines, backslash
constructions, macro definitions,
eqn(1) constructs (between
“.EQ” and “.EN” lines or between delimiters),
pic(1) pictures, and table
descriptions and writes the remainder to 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.
The options are as follows:
-i
- Ignore “.so” and “.nx” commands.
-k
- Keep blocks of text intact. This is the default behavior unless the
-m
option is given.
-m
- Enable support for common macro packages. The
-m
option takes the following arguments:
- a
- recognize man(7)
macros.
- e
- recognize me(7) macros.
- l
- remove list constructs.
- m
- recognize mm(7) macros.
- s
- recognize ms(7) macros.
-p
- Preserve paragraph macros. This option only has an effect if the
-m
option is also specified.
-w
- Output 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. Normally, the output follows the
original, with the deletions mentioned above.
deroff
appeared in Version 7
AT&T UNIX.
deroff
is not a complete
troff(1) interpreter, so it can
be confused by subtle constructs. Most errors result in too much rather than
too little output.
The -ml
option does not correctly handle
nested lists.