Answered: What are the sets of LR(1) items for…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

What are the sets of LR(1) items for this BNF grammar?

E ::= V | F
V := id | id[E]
F := id(E)

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Follow-up Question

Sorry to ask about this BNF grammar again, but what would the LR(1) sets be if the parentheses and bracket symbols were terminal symbols?

E::= V | F
V:= id | id[E]
F:= id(E)

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Follow-up Question

One last question. For this same grammar, would the LR(1) sets be different if both the parentheses and bracket symbols were treated as terminal symbols?

Ex: FOLLOW(E) = { ], ), $ }

E::= V | F
V:= id | id[E]
F:= id(E)

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Follow-up Question

Would the sets be the same if the characters were spaced out?

E::= V | F
V::= id | id [ E ]
F::= id ( E )

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