Lua
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Lua Quick Start Guide
The easiest way to learn Lua programming Key Features The easiest way to learn Lua coding Use the Lua standard libraries and debug Lua code Embed Lua as a scripting language using the Lua C API Book Description Lua is a small, powerful and extendable scripting/programming language that can be used for learning to program, and writing games and applications, or as an embedded scripting language. There are many popular commercial projects that allow you to modify or extend them through Lua scripting, and this book will get you ready for that. This book is the easiest way to learn Lua. It introduces you to the basics of Lua and helps you to understand the problems it solves. You will work with the basic language features, the libraries Lua provides, and powerful topics such as object-oriented programming. Every aspect of programming in Lua, variables, data types, functions, tables, arrays and objects, is covered in sufficient detail for you to get started. You will also find out about Lua's module system and how to interface with the operating system. After reading this book, you will be ready to use Lua as a programming language to write code that can interface with the operating system, automate tasks, make playable games, and much more. This book is a solid starting point for those who want to learn Lua in order to move onto other technologies such as Love2D or Roblox. A quick start guide is a focused, shorter title that provides a faster paced introduction to a technology. It is designed for people who don't need all the details at this point in their learning curve. This presentation has been streamlined to concentrate on the things you really need to know. What you will learn Understand the basics of programming the Lua language Understand how to use tables, the data structure that makes Lua so powerful Understand object-oriented programming in Lua using metatables Understand standard LUA libraries for math, file io, and more Manipulate string data using Lua Understand how to debug Lua applications quickly and effciently Understand how to embed Lua into applications with the Lua C API Who this book is for This book is for developers who want to get up and running with Lua. This book is ideal for programmers who want to learn to embed Lua in their own applications, as well as for beginner programmers who have never coded before.
Beginning Lua Programming
This book is for students and professionals who are intrigued by the prospect of learning and using a powerful language that provides a rich infrastructure for creating programs. No programming knowledge is necessary to benefit from this book except for the section on Lua bindings, which requires some familiarity with the C programming language. A certain comfort level with command-line operations, text editing, and directory structures is assumed. You need surprisingly little in the way of computer resources to learn and use Lua. This book focuses on Windows and Unix-like (including Linux) systems, but any operating system that supports a command shell should be suitable. You'll need a text editor to prepare and save Lua scripts. If you choose to extend Lua with libraries written in a programming language like C, you'll need a suitable software development kit. Many of these kits are freely available on the Internet but, unlike Lua, they can consume prodigious amounts of disk space and memory.
Lua
DefinitionDespite being a fast and powerful programming language, Lua is very easy to use and learn. Programmers can easily embed this language into their applications.The basic purpose of Lua's development was the creation of an embeddable lightweight scripting language that can be used in a variety of programming activities, such as web applications, image processing, and games.History of LuaA team of 3 members, namely Roberto Ierusalimschy, Waldemar Celes, and Luiz Henrique de Figueiredo, Computer Graphics Technology Group (Tecgraf) created Lua in year 1993 at the Pontifical Catholic University of Rio de Janeiro.The two core foundation stones that led towards the development of Lua were the data configuration and description languages, namely data-entry language (DEL), and Simple Object Language (SOL). Between the years 1992 and 1993 teams at Tecgraf independently developed these two languages for two different projects.Both of these projects were developed at Petrobras Company and were graphical designing tools for engineering applications. However, SOL and DEL lacked flow control structures, and Petrobras realised that there was need to add a full programming feature to these languages.The design of Lua 1.0 was developed in a manner that enabled its object constructors, which were a little bit different from the present time light weight and flexible object constructors. The control structures' syntax for Lua was taken from Modula to a great extent (as it consisted of the repeat/until, if, while loops).Part from that, the syntax was also influenced by a number of other languages, these included: CLU, C++, SNOBOL and AWK. The developers of Lua had stated, in one of the articles that was published in Dr. Dobb's Journal, that the decision to use tables as the primary data structure for Lua has been influenced by LISP and Scheme. This is because these languages had lists as their data structure mechanism, which is single and global in nature.Scheme has had increasing influence on the semantics of Lua with the passage of time. This influence can be evidently seen with the inclusion of full lexical scoping and anonymous functions in the language.The release of versions of Lua up till version 5.0 was made under a license that was similar to the BSD license. Afterwards, MIT license was used to make releases. This was applicable from the release of version 5.0.
