. ├── Makefile configuration to compile the shared library and native tests ├── Rakefile configuration to compile the native extension and run the Ruby tests ├── bin │ ├── lex runs the lexer on a file or string, prints the tokens, and compares to ripper │ ├── parse runs the parse on a file or string and prints the AST │ └── prism a CLI for development and debugging ├── config.yml specificati