v0.1.0

Parse bash exactly as bash does. One file, zero dependencies, in your language.

Parable is a recursive descent parser for the full bash grammar — heredocs, parameter expansion, process substitution, arithmetic, arrays, conditionals, coprocesses, extglob, all of it. Validated against a patched GNU Bash 5.3 that reveals its internal parse tree. No spec interpretation, no "close enough."

Downloads

Language	File	Min Version
JavaScript	parable.js	Node.js 21
Python	parable.py	CPython/PyPy 3.12

Highlights

• 4,574 tests passing across both languages
• Oracle-tested against bash's own AST — not spec-interpreted
• Zero dependencies — single file, drop into any project
• Differential fuzzer for discovering edge cases against bash itself
• Transpiled via Tongues