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Attribute Grammar Systems
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An attribute grammar system based on strongly non-circular AGs that perform extensive space optimizations
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The Fnc-2 Attribute Grammar System Efficiency the generated evaluators, based on the visit-sequence paradigm, are completely deterministic; furthermore, this paradigm allows to apply very effective space optimization techniques. The evaluators are hence basically as efficient in time and space as hand-written programs using a tree...An attribute-grammar compiling system based on yacc, lex, and C, the system embodies a yacc/lex/C preprocessor designed to bring attribute grammars to the mainstream of UNIX-based language development. It can also be used with Bison, Flex, and C++.
ftp://ftp.cs.iastate.edu/pub/ox/
The system generates efficient incremental attribute evaluators and was written by one of the attribute-grammar formalizers.
http://www.cs.uu.nl/groups/ST/Software/LRC/
The UU_AG system is a very simple program that reads a set of files containing an attribute grammar, in which semantic functions are described through Haskell expressions.
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UU_AG Click here to return to the main page. Table of Contents Why this Attribute Grammar System Change Log Where to get the software Conditions for use The Attribute Grammar Language An example session. An Example Language Copy Rule Generation Errors...The implemented programming language is based on an attribute grammar.
ftp://ftp.cs.uwindsor.ca/pub/wage/
The formalism for the to attribute grammars related Affix Grammar over Finite Lattices developed at the University of Nijmegen is being applied to natural-language processing. Context-free grammars can be described on a primary context-free level augmented by secondary-level features for expressing agreement between parts of speech.
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The AGFL Grammar Work Lab This is the website of the AGFL-project (Affix Grammars over a Finite Lattice) whose goal is the development of a technology for Natural Language Processing available in the public domain. The AGFL formalism for the syntactic description of Natural Languages...