ClearJump establishes a place on SourceForge to develop an open source version of its ClearParse parsing engine.
ClearParse Open Edition is the fast, flexible, open source parsing solution. Better than code generators, just four easy steps enable you to parse anything: (1) define a grammar, (2) load the grammar into ClearParse, (3) call the engine to parse the source, and (4) traverse the parsing tree.