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Question: 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
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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.