Book Image

Rust Standard Library Cookbook

By : Jan Hohenheim, Daniel Durante
Book Image

Rust Standard Library Cookbook

By: Jan Hohenheim, Daniel Durante

Overview of this book

Mozilla’s Rust is gaining much attention with amazing features and a powerful library. This book will take you through varied recipes to teach you how to leverage the Standard library to implement efficient solutions. The book begins with a brief look at the basic modules of the Standard library and collections. From here, the recipes will cover packages that support file/directory handling and interaction through parsing. You will learn about packages related to advanced data structures, error handling, and networking. You will also learn to work with futures and experimental nightly features. The book also covers the most relevant external crates in Rust. By the end of the book, you will be proficient at using the Rust Standard library.
Table of Contents (12 chapters)

Getting started

At its heart, TOML is all about key-value pairs. This is the simplest TOML file you can create:

message = "Hello World"

Here, the key message has the "Hello World" value. A value can also be an array:

messages: ["Hello", "World", "out", "there"]

A group of key-values is called a table. The following TOML lets the smileys table contain the happy key with the ":)" value and the sad key with the ":(" value:

happy = ":)"
sad = ":("

A particularly small table can be inlined, that is, written in one line. The last example is the exact same as the following:

smileys = { happy = ":)", sad = ":(" }

Tables can be nested by separating their names with a dot:

ip = ""
ip = ""
ip = ""

A nice property of TOML is that...