Given the following grammar in BNF: →< var > = → X|Y|Z- %|→?|→()| a) Change the grammerrules so that! and - unary operators can be produced. b) Change the grammer so that % has higherprecedence than ?. Moreover % should be right associative.

Answered: Given the following grammar in BNF:…

Given the following grammar in BNF: –→=→X|Y|Z→ %|→?|→()|< var > a) Change the grammer ruloc co that Lond aters can be reduced b) Change the that 06 hac highor

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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Given the following grammar in BNF: →< var > = → X|Y|Z- %|→?|→()|<var > a) Change the grammer
rules so that! and - unary operators can be produced. b) Change the grammer so that % has higher
precedence than ?. Moreover % should be right associative.

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