Learning Regular Expressions

by Forta, Ben

• ISBN13: 9780134757063
• ISBN10: 0134757068
• Edition: 1st
• Format: Paperback
• Copyright: 2018-05-15
• Publisher: Addison-Wesley Professional

Summary

Learn to use one of the most powerful text processing and manipulation tools available

Regular expression experts have long been armed with an incredibly powerful tool, one that can be used to perform all sorts of sophisticated text processing and manipulation in just about every language and on every platform. That’s the good news. The bad news is that for too long, regular expressions have been the exclusive property of only the most tech savvy. Until now.

Ben Forta's Learning Regular Expressions teaches you the regular expressions that you really need to know, starting with simple text matches and working up to more complex topics, including the use of backreferences, conditional evaluation, and look-ahead processing. You’ll learn what you can use, and you’ll learn it methodically, systematically, and simply.

Regular expressions are nowhere near as complex as they appear to be at first glance. All it takes is a clear understanding of the problem being solved and how to leverage regular expressions to solve them.

• Read and understand regular expressions
• Use literal text and metacharacters to build powerful search patterns
• Take advantage of advanced regular expression features, including lookahead and backreferences
• Perform powerful search-and-replace operations in all major professional editing tools
• Add sophisticated form and text processing to web applications
• Search for files using command-line tools like grep and egrep
• Use regular expressions in programming languages like JavaScript, Java, PHP, Python, Microsoft .NET, and C#, as well as in DBMSs including MySQL and Oracle
• Work with phone numbers, postal codes, social security numbers, IP addresses, URLs, email addresses, and credit card numbers

Contents at a Glance

1 Introducing Regular Expressions

2 Matching Single Characters

3 Matching Sets of Characters

4 Using Metacharacters

5 Repeating Matches

6 Position Matching

7 Using Subexpressions

8 Using Backreferences

9 Looking Ahead and Behind

10 Embedding Conditions

11 Regular Expression Solutions to Common Problems

Appendix A Regular Expressions in Popular Applications and Languages

Author Biography

Ben Forta is Adobe Systems’ Senior Director of Education Initiatives and has more than three decades of experience in the computer industry in product development, support, training, and product marketing. He is the author of the best-selling Sams Teach Yourself SQL in 10 Minutes, the ColdFusion Web Application Construction Kit series, as well as books on Flash, Java, Windows, and other subjects. He has extensive experience in database design and development, has implemented databases for several highly successful commercial software programs and websites, and is a frequent lecturer and columnist on Internet and database technologies.

Table of Contents

Introduction
1. Introducing Regular Expressions
2. Matching Single Characters
3. Matching Sets of Characters
4. Using Metacharacters
5. Repeating Matches
6. Position Matching
7. Using Subexpressions
8. Using Backreferences
9. Looking Ahead and Behind
10. Embedding Conditions
Appendix A. Regular Expressions in Popular Applications and Languages
Appendix B. Regular Expression Solutions to Common Problems
Appendix C. The Regular Expression Tester