precedence than ?. Moreover % should be right associative.

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
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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.
Transcribed Image Text: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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