In certain programming languages, comments appear between delimiters such as (# and #). • A comment must begin with (# and end with #). • A comment may not contain #) inside the comment. • A comment's delimiters must be separate: (##) is a comment, (#) is not. • For simplicity, assume that the alphabet is E = {a, b, (, ), #). Give a regular expression that accepts comments.

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
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In certain programming languages, comments appear between delimiters such as (# and #).
• A comment must begin with (# and end with #).
• A comment may not contain #) inside the comment.
• A comment's delimiters must be separate: (##) is a comment, (#) is not.
For simplicity, assume that the alphabet is E = {a, b, (, ), #}).
Give a regular expression that accepts comments.
Transcribed Image Text:In certain programming languages, comments appear between delimiters such as (# and #). • A comment must begin with (# and end with #). • A comment may not contain #) inside the comment. • A comment's delimiters must be separate: (##) is a comment, (#) is not. For simplicity, assume that the alphabet is E = {a, b, (, ), #}). Give a regular expression that accepts comments.
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