Pearson eText for Concepts of Programming Languages -- Instant Access (Pearson+)
Pearson eText for Concepts of Programming Languages -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135102268
Author: Robert Sebesta
Publisher: PEARSON+
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Chapter 3, Problem 16PS

Explanation of Solution

Consider the following BNF:

<assign> -> <id> = <expr>

<id> -> A|B|C

<expr> -> <expr> + <expr>

| <expr> * <expr>

|(<expr>)

|<id>

BNF:

Backus-Naur Form (BNF) is unambiguous and also it is precise. It is a formal and mathematical way of representation for specifying the context-free grammars. BNF is used to describe the syntax of the Algol 60 programming language...

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