num_pages: 154
description: If youre a programmer new to regular expressions this easy-to-follow guide is a great place to start. Youll learn the fundamentals step-by-step with the help of numerous examples discovering first-hand how to match extract and transform text by matching specific words characters and patterns.Regular expressions are an essential part of a programmers toolkit available in various Unix utlilities as well as programming languages such as Perl Java JavaScript and C#. When youve finished this book youll be familiar with the most commonly used syntax in regular expressions and youll understand how using them will save you considerable time.Discover what regular expressions are and how they workLearn many of the differences between regular expressions used with command-line tools and in various programming languagesApply simple methods for finding patterns in text including digits letters Unicode characters and string literalsLearn how to use zero-width assertions and lookaroundsWork with groups backreferences character classes and quantifiersUse regular expressions to mark up plain text with HTML5
language: English
title: Introducing Regular Expressions: Unraveling Regular Expressions, Step-by-Step
publisher: O'Reilly Media