705 research outputs found

    On the design of ALEPH

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    On the design of ALEPH

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    Analysis-oriented two-level grammars

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    Summary: p. 2-3

    AN ENVIRONMENT FOR ENGINEERING EXTENDED AFFIX GRAMMAR ENVIRONMENTS

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    Existing formalisms for the specification of programming environments are complex and strongly biased by the problems of environment generation. It has been investigated whether a simple two-level grammar, describing a programming language, can be used without further modification for the generation of an environment for that language. We believe that there is enough information in most language definitions - albeit implicitly - to generate most of the tools used in syntax-directed editors. This paper proposes some simple and elegant improvements in the use of place- holders and templates, and in the unparsing mechanism. Although the improvements are implemented in a completely newly designed prototype they can also be applied to existing syntax-directed editors to improve their workability

    An error-recovering form of DCGs

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