(ASDL) A language developed as part of Esprit project GRASPIN, as a basis for generating {language-based editors} and environments.It combines an {object-oriented} type system, syntax-directed translation schemes and a target-language interface.["ASDL - An Object-Oriented Specification Language for Syntax-Directed Environments", M.L. Christ-Neumann et al, European Software Eng Conf, Strasbourg, Sept 1987, pp.77-85].(1996-02-19)