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SDF is a language for defining syntax. It provides for an unprecedented level of conciseness in syntax definitions. First, syntax can be defined in modules. Second, lexical and context-free syntax are integrated in a single formalism in which the complete syntax of a language can be defined. Third, SDF includes declarative disambiguation constructs. Therefore, there is no need to introduce non-terminals to deal with ambiguities in a language.

Some useful places to start:

* An overview of the unique features of SDF * Pointers to SDF documentation * Download the implementation of SDF * Research papers about SDF * Find SDF grammars for many languages here

* Subscribe to the mailing list for announcements and discussions. * Organization of the development of SDF related software * How to report bugs.