Derivation in Scattered Context Grammar via Lazy Function Evaluation

Authors Ota Jirák, Dušan Kolář

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Ota Jirák
Dušan Kolář

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Ota Jirák and Dušan Kolář. Derivation in Scattered Context Grammar via Lazy Function Evaluation. In Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09). Open Access Series in Informatics (OASIcs), Volume 13, pp. 27-36, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)


This paper discusses scattered context grammars (SCG) and considers the application of scattered context grammar production rules. We use function that represents single derivation step over the given sentential form. Moreover, we define this function in such a way, so that it represents the delayed execution of scattered context grammar production rules using the same principles as a lazy evaluation in functional programming. Finally, we prove equivalence of the usual and the delayed execution of SCG production rules.
  • SCG
  • delayed execution
  • derivation
  • lazy evaluation


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