Programming in Lua, Third Edition

Lua is the language of choice for anyone who needs a scripting language that is simple, efficient, extensible, portable, and free. Currently, Lua is being used in areas ranging from embedded systems to Web development and is widely spread in the game industry, where knowledge of Lua is an indisputable asset. Lua also has established itself as a major language in software development for mobile devices. Programming in Lua is the official book about the language, giving a solid base for any programmer who wants to use Lua. Authored by Roberto Ierusalimschy, the chief architect of the language, it covers all aspects of Lua 5---from the basics to its API with C---explaining how to make good use of its features and giving numerous code examples. Programming in Lua is targeted at people with some programming background, but does not assume any prior knowledge about Lua or other scripting languages. This Third Edition updates the text to Lua 5.2 and brings substantial new material. In particular, it brings more than one hundred exercises distributed through all chapters, ranging from simple questions about the language to full small-size projects. "Lua is spreading more and more throughout different areas of software, from embedded systems and mobile devices to the Web and the Internet of Things. Besides, it has a major role in the game industry, where knowledge of Lua has become an indisputable asset. Lua is the language of choice for anyone who needs a scripting language that is simple, efficient, extensible, portable, and free. Programming in Lua is the official book about the language, providing a solid base to any programmer who wants to use Lua. Authored by Roberto Ierusalimschy, the chief architect of the language, it covers all aspects of Lua 5--from the basics to its API with C. The book is the main source of programming patterns for Lua, with numerous code examples that help the reader to make the most of Lua's flexibility and powerful mechanisms. Programming in Lua is targeted at people with some programming background, but does not assume any prior knowledge about Lua or other scripting languages. This Fourth Edition updates the book to Lua 5.3 and marks a complete reorganization of the text. Building on his many years of experience teaching Lua, Roberto has restructured the book to present the material in a growing order of complexity, allowing the reader to better absorb the character of the language."--Amazon.com Preface The Language Getting Started Types and Values Expressions Statements Functions More about Functions Iterators and the Generic for Compilation, Execution, and Errors Coroutines Complete Examples Tables and Objects Data Structures Data Files and Persistence Metatables and Metamethods The Environment Modules and Packages Object-Oriented Programming Weak Tables and Finalizers The Standard Libraries The Mathematical Library The Bitwise Library The Table Library The String Library The I/O Library The Operating System Library The Debug Library The C API An Overview of the C API Extending Your Application Calling C from Lua Techniques for Writing C Functions User-Defined Types in C Managing Resources Threads and States Memory Management Index The author, the chief architect of the Lua programming language, illustrates the features and functionalities of Lua 5.2 using code examples and exercises