Lime, a parser generator that can merge grammars at runtime
Summary
Lime is a runtime-extensible, LALR(1) parser generator inspired by Lemon/SQLite. It supports loading grammar extensions at runtime, SIMD-accelerated tokenization, and optional LLVM JIT, enabling evolvable parsers without downtime. The project is open source with a single-file generator and extensive docs and examples, including PostgreSQL grammar ports.