Titlebook: Implementation of Functional Languages; 8th International Wo Werner Kluge Conference proceedings 1997 Springer-Verlag Berlin Heidelberg 199

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of its population and are therefore of extreme economic importance. Industrial, residential, and recreational developments, as well as large urban complexes, occupy much of the coastal margin of most highly developed countries. Undoubtedly future expansion in many undeveloped maritime countries wil

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Active patterns,presentation exists for an abstract value: in many cases there is a specific representation for which function definitions become very simple, and active patterns just allow to assume this specific representation in function definitions. We define the semantics of active patterns and describe their

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Context patterns in Haskell, a new non-local form of patterns called ., which allow the matching of subterms without fixed distance from the root of the whole term. The semantics of context patterns is defined by transforming them to standard Haskell programs. Typical applications of context patterns are functions which . a da

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,On programming scientific applications in , — A functional language extended by a subsystem for higr to those that are available in .. The array operations in SAC are based on the Ψ-calculus, an algebra of arrays which provides a formalism for specifying and simplifying array operations in terms of index set manipulations..The programming techniques made possible by SAC are demonstrated by means