See also:

• Computers: Programming: Compilers: Lexer and Parser Generators  (58)

• The AGFL Grammar Work Lab - 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.
• The lrc attribute grammar system - The system generates efficient incremental attribute evaluators and was written by one of the attribute+grammar formalizers.
• Micro Attribute Grammar System - 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.
• Ox Grammar System - 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++.