projects · March 2026
kebnf
Converts the OMG's KeBNF text for KerML and SysML v2 into ANTLR4 and tree-sitter grammars from one AST, all 640 rules, recording the metamodel annotations it strips. A mechanically faithful tree-sitter emitter timed out parsing a one-line file; inlining shared prefix keywords took it to 0.15ms and cut LR conflicts from 335+ to 199.
