3. The method according to claim 1 , wherein said tags and said objects belong to different tag types and different object types respectively, and wherein said step of parsing said tags comprises providing a first set of respective readers for said different tag types to populate said objects corresponding to said different object types, and wherein said step of processing said objects comprises providing a second set of respective generators for said different object types to generate elements of said executable code corresponding to said different object types.
4. A method according to claim 3 , further comprising the step of adding a new tag type to available ones of said tags, and adding a new reader to said first set and adding a new generator to said second set, to enable generation of an element of said executable code corresponding to said new tag type.