Development, Assessment, and Reengineering of Language Descriptions |extended Abstract|

We discuss tools that aid in the development, the assessment and the reengineering of language descriptions. Languages description is understood as the syntactical description of a language here. We develop assessment tools that give an indication as to what is wrong with an existing language description , and give hints towards correction. From a correct and complete language description, it is possible to generate a parser, a manual, and on-line documentation. The parser is geared towards reengineering purposes, but is also used to parse the examples that are contained in the documentation. The reengineered language description is a basic ingredient for a reengineering factory that can manipulate this language. The described tool support can also be used to develop a language standard without syntax errors in the language description and its code examples.