C# 4.0 How-To

Chapter 8. Regular Expressions

IN THIS CHAPTER

• Search Text

• Extract Groups of Text

• Replace Text

• Match and Validate

• Help Regular Expressions Perform Better

Regular expressions provide an extremely powerful text-processing system that every programmer should at least be familiar with. This chapter is not a full tutorial on regular expression syntax, but if you are new to them, this will get you started with some useful tips.

Search Text

Scenario/Problem: You need an advanced text search to find patterns.

Solution: Using regular expressions gives you the power to find complex patterns in text. .NET’s regular expression classes can be found in the System.Text.RegularExpressions namespace. A text search in its most fundamental form ...