DESCRIPTION Every domain of the business world, from sales to warehousing to shipping, has a language all its own. A DSL, or domain specific language, is a computer programming language that is created with a particular domain in mind. Because it uses familiar terminology, and because it is designed to be simple, a DSL can be used by nontechnical business people to write or at least change existing programs. DSLs are developed from normal programming languages, and the examples in this book are about a subset of those that run on the Java Virtual Machine, such as Java itself, Ruby, or Scala. DSLs in Action uses real-world examples to thoroughly guide the reader through the process of building a DSL. KEY POINTS In-depth techniques of DSL implementation. Highly practical. Uses real-life applications for illustration. Author is a well-known DSL blogger and expert. This book is written especially for developers familiar with JVM-based languages, but many of the techniques presented will work in other programming environments as well.