applied over a conventional programming language - gives you a way to do this because their business model your problem domain. DSLs in Action introduced the concept and the definition of developers need to build domain-specific quality-high language. For experienced developers, this book discusses the ins and outs of domain design language without the pain of writing a parser by hand. This book discusses the use of DSL and implementation in the real world based suite JVM languages like Java, Ruby, Scala and Groovy. It contains pieces of code that implement the real-world DSL design and discuss the pros and cons of implementing each. What? Inside S Tested, real world examples How to find the right level of abstraction Using language features for building internal DSLs Designing a parser / language slightly based combinator