The Spoofax Language Workbench http://www.metaborg.org/en/latest/ http://www.metaborg.org/en/latest/ uses scannerless generalized LR parsing. When language proc

The Spoofax Language Workbench http://www.metaborg.org/en/latest/ http://www.metaborg.org/en/latest/ uses scannerless generalized LR parsing. When language processor development effort is more important than raw parsing speed (e.g. for external domain specific languages), Spoofax's grammar, abstract syntax tree, and semantics tools are exactly the right thing.