1-Here we have a practical grammar for generating four-function expressions as below. Please remove all left recursions in the grammar (show your elimination steps). E → E + T | E - T | T T → T * F | T/F | F F → int | (E)
1-Here we have a practical grammar for generating four-function expressions as below. Please remove all left recursions in the grammar (show your elimination steps). E → E + T | E - T | T T → T * F | T/F | F F → int | (E)
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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1-Here we have a practical grammar for generating four-function expressions as
below. Please remove all left recursions in the grammar (show your elimination steps).
E → E + T | E - T | T
T → T * F | T/F | F
F → int | (E)
2- Please determine the FIRST and FOLLOW from the revised grammar (that
does not contain left recursions) in above Question 1.
3-Construct the predictive-parser table for the revised grammar in above
Question 1 using the FIRST and FOLLOW sets generated in above Question 2.
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