* Potential incompatibility: provide a uniform interface to the following info subcommands
<class> info superclass ?-closure? ?pattern?
<class> info subclass ?-closure? ?pattern?
<class> info instances ?-closure? ?pattern?
<class> info instmixinof ?-closure? ?pattern?
<class> info mixinof ?pattern?
In cases, where the option "-closure" is defined,
the values are computed transitively.
In cases, where a pattern is specified, and
the pattern contains meta-characters, a list
of results is returned matching the pattern
(like "string match"). When no matching value
is found, an empty list is returned.
In cases, where a pattern is specified, and
the pattern contains no meta-characters,
a single value is returned korrespinding to
the specified value. The pattern is used
to lookup an object or class, such it is
not necessary to provide fully qualified names).
if there is no match, empty is returned.
Previously, "info superclass" and "info subclass"
returned a boolean value and performed
always a transitive search. Returning ""
is more consistent and more in line with Tcl.
By using the option "-closure" one can
perform the lookup in the transitive
or in the intransitive sets.
Still to do:
children
parent
classchildren
classparent
