Inspect the usage section in an Rd object
inspect_usage.RdInspect the usage section in an Rd object.
Details
The usage section in the Rd object, rdo, is extracted and
parsed. The usage of each function described in rdo is
obtained also from the actual installed function and compared to the
one from rdo.
The return value is a list, with one element for each function usage
as returned by compare_usage1.
One of the consequences of this is that an easy way to add a usage
description of a function, say fu to an existing Rd file is to
simply add a line fu() to the usage section of that file and
run reprompt on it.