NFA, DFA, POSIX, and the Mechanics of Expression Processing

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NFA, DFA, POSIX, and the Mechanics of Expression Processing

This article, the last of a multi-part series, discusses how a regular expression engine works. It is excerpted from chapter four of the book Mastering Regular Expressions, Third Edition, written by Jeffrey E.F. Friedl (O'Reilly, 2006; ISBN: 0596528124). Copyright © 2006 O'Reilly Media, Inc. All rights reserved. Used with permission from the publisher. Available from booksellers or direct from O'Reilly Media.

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