ABNF Parser Generator

JavaScript APG is a robust ABNF Parser Generator that enables developers to create recursive-descent parsers directly from a superset of ABNF (SABNF). It is currently stable at version 4.4.0, with a release cadence that has seen several updates in the past year, indicating active development and maintenance. Key differentiators include its ability to generate parsers for both standard `apg-js` and the more lightweight `apg-lite` framework, and its focus on fixing issues related to large grammars with mutually-recursive rules, a significant improvement over its predecessors like `apg-js2`. The library is designed to produce efficient parsers and provides options for TypeScript-compatible grammar objects, making it suitable for modern JavaScript and TypeScript environments.