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We present a tool architecture that supports migrating custom domain-specific language (DSL) implementations to a language workbench. We demonstrate an implementation of this architecture for models in the domains of defining component interfaces (IDL) and modeling system behavior (OIL) which are developed and used at a digital printer manufacturing company. Increasing complexity and the lack of DSL syntax and IDE support for existing implementations in Python based on XML syntax hindered their evolution and adoption. A reimplementation in Spoofax using modular language definition enables composition between IDL and OIL and introduces more concise DSL syntax and IDE support. The presented tool supports migrating to new implementations while being backward compatible with existing syntax and related tooling. CCS Concepts • Software and its engineering → Domain specific languages;

Within the printing industry, much of the variety in printed applications comes from the variety in finishing. Finishing comprises the processing of sheets of paper after being printed, e.g. to form books. The configuration space of finishers, i.e. all possible configurations given the available features and hardware capabilities, are large. Current control software minimally assists operators in finding useful configurations. Using a classical modelling and integration approach to support a variety of configuration spaces is suboptimal with respect to operatability, development time, and maintenance burden.In this paper, we explore the use of a modeling language for finishers to realize optimizing decision making over configuration parameters in a systematic way and to reduce development time by generating control software from models.We present CSX, a domain-specific language for high-level declarative specification of finishers that supports specification of the configuration parameters and the automated exploration of the configuration space of finishers. The language serves as an interface to constraint solving, i.e., we use low-level SMT constraint solving to find configurations for high-level specifications. We present a denotational semantics that expresses a translation of CSX specifications to SMT constraints. We describe the implementation of the CSX compiler and the CSX programming environment (IDE), which supports well-formedness checking, inhabitance checking, and interactive configuration space exploration. We evaluate CSX by modelling two realistic finishers. Benchmarks show that CSX has practical performance (<1s) for several scenarios of configuration space exploration.

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