PreCC: A Prettier Compiler Compiler is an infinite-lookahead compiler-compiler for context dependent grammars. It
"can be thought of as yacc with parameters, arbitrarily complex compound expressions, infinite lookahead and a neater way of dealing with attributes"
The Cocktail Compiler Toolbox
Lrc is a system for generating efficient incremental attribute evaluators. Lrc can be used to generate language based editors and other advanced interactive environments.
Micro Attribute Grammar System
FNC-2 Attribute Grammar System
Lecture on Attribute Grammars, more
Attribute Grammars Home Page