Rd_fun                  Return all or selected sections of a help topic
                        as an Rd object
Rd_help2txt             Extract selected help sections as text.
Rd_title                Wrap an object so that it can be used as a
                        section element of an Rd object.
Rdo_args2txt            Extract the descriptions of one or more
                        arguments of a function
Rdo_args2txt_list       Extract the descriptions of the arguments of a
                        function
Rdo_create              Create basic Rd objects
Rdo_get_args            Extract argument description from a help topic
Rdo_section             Extract a section element from an Rd object or
                        Rd fragment
gbRd-package            Utilities for processing Rd objects and files
