Construct an equivalent unambiguous grammar

Reference no: EM131099204

Construct a predictive parser from the unambiguous grammar for regular expressions in Exercise 4.4.

Exercise 4.4. Consider the grammar

Note that the first vertical bar is the "or" symbol. not a separator between alternatives,

a) Show. that this grammar generates all regular expressions over the symbols a and b.

b) Show that this grammar is ambiguous.

c) Construct an equivalent unambiguous grammar that gives the operators >1:. concatenation, and I the precedences and associativities defined in Section 3.3.

d) Construct a parse tree in both grammars for the sentence a Ib*C

Reference no: EM131099204

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