In this paper, we look at two categorical accounts of computational effects (strong monad as a model of the monadic metalanguage, adjunction as a model of call-bypush-value with stacks), and we adapt them to incorporate global exceptions. In each case, we extend the calculus with a construct, due to Benton and Kennedy, that fuses exception handling with sequencing. This immediately gives us an ...

The Standard Generalized Markup Language (SGML), an ISO standard, has become the accepted method of deening markup conventions for text les. SGML is a metalanguage for deening grammars for textual markup in much the same way that Backus{Naur Form is a metalanguage for deening programming-language grammars. Indeed, HTML, the method of marking up a hypertext documents for the World Wide Web, is a...

Logical connectives familiar from the study of hybrid logic can be added to the logical framework LF, a constructive type theory of dependent functions. This extension turns out to be an attractively simple one, and maintains all the usual theoretical and algorithmic properties, for example decidability of type-checking. Moreover it results in a rich metalanguage for encoding and reasoning abou...

We present a declarative and procedural semantics for an amalgamation of object language and metalanguage. We define the class of definite metalogic programs, based on a definite clause language, a binary demonstration predicate, and a naming scheme with both primitive and structured names. The declarative semantics is an extension of the semantics of logic programs dealing with multiple theori...

The paper describes a language consisting of two layers, terms and computation rules, whose operational semantics is given in terms of two relations: simplification and computation. Simplification is induced by confluent rewriting on terms. Computation is induced by chemical reactions, like those in the Join-calculus. The language can serve as metalanguage for defining the operational semantics...

We present a metalanguage, named Alan that can be used to model dynamic multimedia displays, particularly those that display multimedia database query results. Alan is an action language that uses temporal logic to model nonMarkovian systems. We show how it can be used for specifying the behavior of fairly complex dynamic multimedia display systems, modeling all graphical user interface element...

We discuss the application of the metaprogramming techniques for soft IP design. Two metaprogramming paradigms are considered: the internal (using capabilities of the single language) and external (based on the usage of the target language and external metalanguage simultaneously) ones. The novelty of our approach is that we apply the concept of the multi-dimensional separation of concerns impl...

This paper deals with the algebraization of multi-signature equational logic in the context of the modern theory of categorical abstract algebraic logic. Two are the novelties compared to traditional treatments: First, interpretations between different algebraic types are handled in the object language rather than the metalanguage. Second, rather than constructing the type of the algebraizing c...

This paper describes a tool for use in user-directed synthesis of circuits speciied using the relational VLSI description language Ruby. The synthesis method is based on syntactic rewriting of Ruby terms, combined with the introduction of constraints into the speciica-tion. The rewriting process is described in a metalanguage based on the use of tactics and tacticals, which makes it possible to...

We discuss the formalization of Abadi and Cardelli’s impς , a paradigmatic object-based calculus with types and side effects, in Co-Inductive Type Theories, such as the Calculus of (Co)Inductive Constructions (CC). Instead of representing directly the original system “as it is”, we reformulate its syntax and semantics bearing in mind the proof-theoretical features provided by the target metalan...