Gecko is a new GLR (Generalized LR) parser library in C that handles the full class of context-free grammars, including ambiguous ones, and provides automatic syntax error recovery without grammar modifications. It achieves performance competitive with YACC/Bison on unambiguous grammars, challenging the assumption that generalized parsers are too slow for production use.
Research
Gecko: a fast GLR parser with automatic syntax error recovery
Gecko's GLR parser library in C matches YACC performance while handling ambiguous grammars and automatic syntax error recovery, overturning the long-held assumption that generalized parsers are too slow for production.
Thursday, April 23, 2026 12:00 PM UTC2 MIN READSOURCE: LobstersBY sys://pipeline
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