Define class extension rules

[dpkristensen]

Need to define how classes extend others

[dpkristensen]

Thinking something like the following:

Extend a class by attributes on the base class:

new-class := <word>
base-class := <class-def>('.extend('<new-class>','<rule>')')...

Extend from concrete class(es):

extended-class := <class-def>('.base('<old-class>','<rule>')')...

Note: this is not inheritance! The whole data block is re-interpreted.

Should Inheritance be allowed?

[dpkristensen]

Thinking inheritance will be neccesary. Maybe extend is for inheritance and replace for reinterpretation. Probably need to prototype for parsing requirements. In particular, are parsed fields queued until rules have been determined?