The contents of
filename will be inserted wherever the
document contains
If the file is specified with an
.rd or
.rb extension, it
will be interpreted as RD documentation.
If the filename has no extension,
rdtool will look for a file with an
extension that matches the type of output being produced (
.html
for HTML files,
.man for man files, and so on) and interpolate
that file's contents in the
output stream. Thus, a line such as:
could be used to add an output-dependent header to a document.
