This handbook for the language workbench MontiCore describes how to efficiently develop tools that deal with language processing. MontiCore allows specifying tooling for processing models of standard languages, such as the UML or Java, as well as domain specific textual languages (DSLs). MontiCore provides infrastructure for processing many as well as heterogeneous models of different languages. MontiCore assists modeling in the large. MontiCore assists the reuse of tool components that have been developed independently by providing techniques for systematic reuse of language components by composing, extending, or inheriting them. To assist an easy development and extension of languages MontiCore provides an extensive library of composable language components for expressions, types, statements, literals, SI-Units, functions, and various diagram types.weiterlesen