Rdo_remove_srcref: Remove srcref attributes from Rd objects
Description
Removes srcref attributes from Rd objects.Usage
Rdo_remove_srcref(rdo)
Value
an Rd object with no srcref attributes.
Details
srcref attrbutes (set by parse_Rd) may be getting in the
way during manipulation of Rd objects, such as comparisons, addition
and replacement of elements. This function removes traverses he
argument and removes the srcref attribute from all of its elements.