Parse a --key-from style spec. Tag (case-insensitive) reads the IfcElement Tag attribute; anything containing a dot is Pset.Property. Returns undefined for a spec that names neither.
--key-from
Tag
Pset.Property
undefined
Parse a
--key-fromstyle spec.Tag(case-insensitive) reads the IfcElementTagattribute; anything containing a dot isPset.Property. Returnsundefinedfor a spec that names neither.