Jison Parser Generator

Jison is a JavaScript parser generator that creates bottom-up parsers from user-defined grammars. It supports grammars defined in either a JSON format or a Bison-style syntax, outputting a standalone JavaScript file capable of parsing the specified language. The API is intentionally designed to be similar to Bison's, making it approachable for developers familiar with traditional parser generators like Yacc or Bison. As of its latest release, 0.4.18, published in 2014, the project appears to be largely unmaintained. It generates parsers that can be used as command-line tools or programmatically within a CommonJS environment. Its primary differentiator is providing a Bison-like grammar definition and parser generation workflow targeting JavaScript.