Defining Namespaces with PREFIX

Name:

PREFIX Name

Specification:
Set the current prefix to Name.

Description:

Every name in a program is either complete or incomplete. A name is complete, if it starts with a colon (:), otherwise it is incomplete. Incomplete names are completed by adding the current prefix to them.

At the very beginning of assembling a program, the current prefix is just the colon (:). This situation can be restored any time by saying "PREFIX :".