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To learn and understand the concepts of LR(1) parsers, canonical collections and shift/reduce conflicts.
Lectures Covered: 22-30
Please read the following instructions carefully before submitting assignment:
Question No 1: Marks 20
Consider the following context free grammar:
S → Sa
S → bS
S → c
(a) Write the canonical collections of LR(1) items for the given context free grammar:
(b) Identify all conflicting items from solution of part a, and the types of the conflicts. [4 marks]
(c) Could the original grammar be converted into an LALR(1) parser that parses all input correctly by resolving conflicts, in the way that YACC and similar parser generators allow? If so, how should they be resolved? In either case, please explain briefly. [4 marks]
(d) Rewrite the grammar in an equivalent form that is suitable for LL parsing and minimizes the use of stack space. [4 marks]
(e) Rewrite the grammar in an equivalent form that is directly suitable for LR parsing (i.e., does not result in conflicts) and minimizes the use of stack space. [4 marks]
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Plz guid about solution
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