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Consider the following BNF: < expr > < expr > + < expr > | < expr > * < expr > | () | 0| 1|2|3…….|9 What are the terminals and non-terminals?

Consider the following BNF: < expr > < expr > + < expr > | < expr > * < expr > | () | 0| 1|2|3…….|9 What are the terminals and non-terminals?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Consider the following BNF:

 

< expr >          < expr > + < expr >

                      | < expr > * < expr >

                      | (<expr>)

                      | <digit>

            <digit>          0| 1|2|3…….|9

 

 

 

What are the terminals and non-terminals?                 

Expert Solution
Step 1

The notation, that is being referred in the question is called Backus - Naur Form or BNF.
It has terminals and non terminals

The non-terminals are meaningful, multi-character names, that act as variables. They can be replaced by either terminals or non terminals as well.

The terminals of are the things that appear as a end result of the grammar or the symbols that appear in the language that is being described.

 

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