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Formal translation directed by \(LR\) parsing. (English) Zbl 0746.68056
Summary: The notion of the syntax-directed translation was a highly influential idea in theory of the formal translation. Models for the description of a formal translation are syntax-directed translation schemes. The special case of syntax-directed translation schemes are simple syntax-directed translation schemes, which can be written in the form of translation grammars. It is possible for an arbitrary translation described by a translation grammar with \(LL(k)\) input grammar to create one-pass translation algorithm by a simple extension of the algorithm of a syntax analysis for \(LL(k)\) grammars. Similar approach for an \(LR(k)\) grammar led to the result that it is possible to perform an one-pass formal translation during \(LR(k)\) analysis only in that case when the translation grammar has a postfix property. The construction of the algorithm is studied, which can, for a particular class of translation grammars (called \(LR(k)\;R\)-translation grammars), perform one pass formal translation. The basic idea is the following: It is possible to make an extension of the algorithm of the syntax analysis for \(LR(k)\) grammars in such a way, that the output of output symbols can be performed not only as a part of the operation reduction but also as a part of the operation shift.

MSC:
68N20 Theory of compilers and interpreters
68Q42 Grammars and rewriting systems
Software:
ALGOL 60
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References:
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