Introduction to Regular Expressions

The information contained in these pages is intended to provide a introduction to regular expressions in general.

While an attempt has been made to make each topic stand on it's own, much of the information contained in these topics relies upon the understanding of a previously introduced feature or concept. Therefore, it's recommended that you peruse these topics sequentially for the best overall understanding of the material.

The Introduction to Regular Expressions consists of the following individuals topics:

Regular Expressions

Early Beginnings

Uses for Regular Expressions

Regular Expression Syntax

Build a Regular Expression

Order of Precedence

Ordinary Characters

Special Characters

Non-Printable Characters

Character Matching



Alternation and Grouping