By paying more attention to semantics-based tool generation, programming language semantics can significantly increase its impact. Ultimately, this may lead to ``Language Design Assistants'' incorporating substantial amounts of semantic knowledge.

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CWI
Software Engineering [SEN]
Software Analysis and Transformation

Heering, J.& Klint, P. (1999). Semantics of programming languages : a tool-oriented approach. In Software Engineering [SEN] (R 9920). CWI.