(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)