(Chomsky type 3) and context-free (Chomsky type 2) grammars (Appendix A) and use the context-
sensitive rules separately while performing the semantic analysis.
We shall assume that the reader has some background in formal languages and Automata, but
it is strongly suggested that the material given in Appendix A be reviewed. We have defined and
explained some of the terms – such as sentential form, phrase, simple phrase and handle – used in
the discussion of parsing in Section A.5.2. Also, the definitions of an ambiguous sentence and an
ambiguous grammar given there should be referred to.
4.1 Top-down and ...
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