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Part 1-
Answer this question with examples
• There are two restrictions on the type of grammars that can be used with a recursive descent parser. The first is that the grammar cannot have any left recursive productions. Give an example of a left recursive production and explain why such productions would be a problem.
The second restriction is that the grammar must not require more than one token look ahead. Give an example of a production that does not have this property. Explain why this restriction is necessary for recursive descent parsing.--------------------------------------
Part 2
1. Determine whether the following grammar is an LL grammar by performing the pairwise disjointness test, showing the FIRST sets of each RHS of each nonterminal:A -> aAb | bBBB -> aB | bA | CcC -> aaB | c | caBIn the above productions upper case letters are nonterminals and lower case letters are terminal symbols.2. Write a Java method that perform a recursive descent parse of the following production:<for_statement> -> FOR ID = <expression> TO <expression> DO <statement>-------------------------Part 3 - Ask one question related to chapter or homework
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