Grammar Overrides
Software Transformation Systems
Grammar Overrides refer to nonterminal modifications or extensions to a fixed base grammar for the purpose of extending the language or customizing the parse to the task (Agile Parsing?). Grammar Overrides are most obvious and convenient in TXL, which has an explicit feature for implementing them, but are a general concept used in many source transformation systems. They can be implemented any number of ways including using Grammar Adaptation?, Grammar Transformation? or by hand using cloning of the original base grammmar.
-- JamesCordy - 10 Oct 2005