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JPlex is an unconventional lexical analyzer generator for Java. JPlex lexers are NIO-based, DFA-powered, push-driven, and fully decoupled and reusable. Their state machines are precompiled and serialized, so run time initialization is fast no matter how large the rule set. JPlex is not a parser generator; it only generates an interface for its parsers, and it does not build a parse tree. When the lexer identifies a token that has a named event associated with it, it passes the token to...

Extension of the CUP parser generator for working with abstract syntax trees (ast). Implements support for class hierarchy generation and automatic tree building from CUP grammar specification files. Version 10k of CUP is used.