arguments, or if none are specified, its standard input for lines of the
These requests are replaced by the contents of the
If the request cannot be met,
can be one of
Other extension types may be supported depending upon compile time options.
If the request can be met by a compressed file, this file is decompressed
using an appropriate decompressor and its output is used to satisfy
programs were used to allow roff preprocessors to be able to preprocess the
files referred to by the requests.
This particular version was written to circumvent problems created by
support for compressed manual pages.
This flag is available for compatibility with other
Its use is to enable .so requests followed by something other than
As this is already the default behaviour, it is ignored.