# Starlark in Rust - REPL
_A REPL for the Starlark language in Rust_
**Disclaimer:** This is not an officially supported Google product. This project is supported
on a best-effort basis and [welcome contributions](CONTRIBUTING.md).
[Starlark](https://github.com/bazelbuild/starlark), formerly codenamed Skylark, is a non-Turing
complete language based on Python that was made for the [Bazel build system](https://bazel.build) to
define compilation plugin.
This REPL uses [starlark](https://crates.io/crates/starlark) crates.
## Usage
A command line interpreter is provided by this project, it can interpret files
passed at the command line and also start a REPL (Read-Eval-Print Loop).
The usage of this program is:
```
Starlark in Rust interpreter
USAGE:
starlark-rust [FLAGS] [OPTIONS] [file]...
FLAGS:
-a, --ast Parse and print AST instead of evaluating.
-b, --build-file Parse the build file format instead of full Starlark. See https://docs.rs/starlark/0.3.0-
pre/starlark/eval/index.html#build_file
-h, --help Prints help information
-r, --repl Run a REPL after files have been parsed.
-V, --version Prints version information
OPTIONS:
-c <command> Starlark command to run after files have been parsed.
ARGS:
<file>... Files to interpret
```