Consider the following grammar G6 from the book: := + | := | = ( cexp> ) lalb|c (a) Draw a parse tree for the following expression: a * (b + c) (b) Modify grammar G6 by adding sub:raction ard division operators (- end /) with customary precedence and associativity. (c) Modify the grammar from (b) by adding a right associative operator = at lower precedence than any other operators.
Consider the following grammar G6 from the book: := + | := | = ( cexp> ) lalb|c (a) Draw a parse tree for the following expression: a * (b + c) (b) Modify grammar G6 by adding sub:raction ard division operators (- end /) with customary precedence and associativity. (c) Modify the grammar from (b) by adding a right associative operator = at lower precedence than any other operators.
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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![Consider the following grammar G6 from the book:
<exp> = <exp> + <mulexp> | <mulexp>
<mulexp> = <mulexps * <rootexp> | <rootexp>
<rootexp> = ( cexp> ) |a|b|c
(a) Draw a parse tree for the following expression: a " (b + c)
(b) Modify grammar G6 by adding sub:raction ard division operators (- end /) with customary precedence and associativity.
(c) Modify the grammar from (b) by adding a right associative operator = at lower precedence than any other operators.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F325229b8-2258-46f8-b60b-b31183fb348a%2F4735d3ae-e5b5-4925-9002-8a855f6ac884%2Feqxu2z_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Consider the following grammar G6 from the book:
<exp> = <exp> + <mulexp> | <mulexp>
<mulexp> = <mulexps * <rootexp> | <rootexp>
<rootexp> = ( cexp> ) |a|b|c
(a) Draw a parse tree for the following expression: a " (b + c)
(b) Modify grammar G6 by adding sub:raction ard division operators (- end /) with customary precedence and associativity.
(c) Modify the grammar from (b) by adding a right associative operator = at lower precedence than any other operators.
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