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expr term_tail term factor_tail factor → id = expr term term_tail → + term term_tail | E → factor factor_tail * factor factor_tail | E → (expr) | id

expr term_tail term factor_tail factor → id = expr term term_tail → + term term_tail | E → factor factor_tail * factor factor_tail | E → (expr) | id

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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In the name LL(1), the first L stands for scanning the input from left to right, the second L stands for producing a leftmost derivation, and the 1 stands for using one input symbol of lookahead at each step to make parsing action decision.

As of now the grammar is not in LL(1).  How can we modify the grammar to obtain an equivalent grammar that is LL(1)? Explain why the modified grammar is LL(1).

 

expr term_tail term factor_tail factor → id = expr term term_tail → + term term_tail | E → factor factor_tail * factor factor_tail | E → (expr) | id
Transcribed Image Text:expr term_tail term factor_tail factor → id = expr term term_tail → + term term_tail | E → factor factor_tail * factor factor_tail | E → (expr) | id
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