Question 2: Given the following context-free grammar stmt: if_then | if_then_else | other_stmts if_then : IF condition THEN stmt if_then_else : IF condition THEN stmt ELSE stmt You may assume that nonterminal other_stmts and condition have already been defined. 1. Show that this context-free grammar is ambiguous. 2. Rewrite the grammar so that it is not ambiguous, but still accepts the same language

Question 2: Given the following context-free grammar stmt: if_then | if_then_else | other_stmts if_then : IF condition THEN stmt if_then_else : IF condition THEN stmt ELSE stmt You may assume that nonterminal other_stmts and condition have already been defined. 1. Show that this context-free grammar is ambiguous. 2. Rewrite the grammar so that it is not ambiguous, but still accepts the same language

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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