answer asap thanks Start with the grammar below:G6: :: = + | ::= * | :: = ()| a | b|cModify it in the following ways:a, Add subtraction and division operators (- and /) with the customary precedence and associativity.b. Then add a left-associative operator % between + and * in precedence.

Answered: Start with the grammar below: G6: :: =…

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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Start with the grammar below:
G6:
<exp> :: = <exp> + <mulexp> | <mulexp>
<mulexp> ::= <mulexp> * <rootexp> | <rootexp>
<rootexp> :: = (<exp>)| a | b|c
Modify it in the following ways:
a, Add subtraction and division operators (- and /) with the customary precedence and associativity.
b. Then add a left-associative operator % between + and * in precedence.

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Step 1

Introduction

Context-free grammar (CFG) is a type of formal grammar used in the theory of formal languages. It is a type of generative grammar, meaning that it can be used to generate all valid strings in a given language. Unlike regular grammars, context-free grammars do not consider the context of the symbols making up the strings, so they can generate a much larger set of strings than regular grammars. CFGs are used to define formal languages, such as programming languages, and formal methods of description.

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