Learn Regex The Hard Way
by Zed A. Shaw
Publisher: LCodeTHW 2011
When you're done with this book you will be able to read regex strings, understand what's going on with regex, learn when to use them, learn to write them, and learn how to write simple parsers to avoid abusing regex to process your strings.
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by Roberto Ierusalimschy
This book gives a solid base for any programmer who wants to use Lua. It covers all aspects of Lua -- from the basics to its API with C -- explaining how to make good use of its features and giving numerous code examples.
by Dirk Hünniger, et al. - Wikibooks
Julia is a high-level, high-performance dynamic programming language for technical computing. Here's a collection of notes and introductory paragraphs that comprise a gentle introduction to the Julia programming language, in the form of a wikibook.
by Graeme Donald Robertson - Robertson Pub
APL is a high-level, general-purpose, intuitive programming language which is designed to be easy on the programmer even if consequently hard on the computer - through power, not inefficiency. APL is essentially simple and easy to learn.
The purpose of this book is to teach Lua programming to anyone regardless of previous programming experience. It can be used as an introduction to programming, or as an introduction to Lua, for people who have programmed before but not in Lua.