The **esformatter‑parser** repository provides a small wrapper that combines Babylon (the Babel JavaScript parser), an Acorn‑to‑Esprima compatibility layer, and Rocambole’s AST manipulation utilities into a single parser module. It is used internally by the **esformatter** code‑formatter to parse and reformat JavaScript source, and is intended for developers who need a ready‑made, ES‑compatible parsing pipeline for tooling or custom formatting workflows.