Learning Regular Expressions

Learning Regular Expressions
by: Ben Forta
ISBN-10: 0134757068
ISBN-13: 9780134757063
Edition 版次: 1
Publication Date 出版日期: 2018-05-25
Print Length 页数: 144
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
About This E-Book
About the Author
Accessing the Free Web Edition
Introduction
1Introducing Regular Expressions
2 Matching Single Characters
3Matching Sets of Characters
4Using Metacharacters
5Repeating Matches
6Position Matching
7 Using Subexpressions
8 Using Backreferences
9 Looking Ahead and Behind
10Embedding Conditions
11 Regular Expression Solutions to Common Problems
Appendix A Regular Expressions in Popular Applications and Languages
Index

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