Book Image

Mastering Go - Second Edition

By : Mihalis Tsoukalos
Book Image

Mastering Go - Second Edition

By: Mihalis Tsoukalos

Overview of this book

Often referred to (incorrectly) as Golang, Go is the high-performance systems language of the future. Mastering Go, Second Edition helps you become a productive expert Go programmer, building and improving on the groundbreaking first edition. Mastering Go, Second Edition shows how to put Go to work on real production systems. For programmers who already know the Go language basics, this book provides examples, patterns, and clear explanations to help you deeply understand Go’s capabilities and apply them in your programming work. The book covers the nuances of Go, with in-depth guides on types and structures, packages, concurrency, network programming, compiler design, optimization, and more. Each chapter ends with exercises and resources to fully embed your new knowledge. This second edition includes a completely new chapter on machine learning in Go, guiding you from the foundation statistics techniques through simple regression and clustering to classification, neural networks, and anomaly detection. Other chapters are expanded to cover using Go with Docker and Kubernetes, Git, WebAssembly, JSON, and more. If you take the Go programming language seriously, the second edition of this book is an essential guide on expert techniques.
Table of Contents (20 chapters)
Title Page

Regular expressions and pattern matching

Pattern matching, which plays a key role in Go, is a technique for searching a string for some set of characters based on a specific search pattern that is based on regular expressions and grammars. If pattern matching is successful, it allows you to extract the desired data from the string, replace it, or delete it.

The Go package responsible for defining regular expressions and performing pattern matching is called regexp. You will see it in action later in this chapter.

When using a regular expression in your code, you should consider the definition of the regular expression as the most important part of the relevant code because the functionality of that code depends on the regular expression.

Introducing some theory