jcrom/lua-fmt

lua-fmt is pretty-printer for Lua code

Code Formatter for Lua

lua-fmt is pretty-printer for Lua code, written in TypeScript and deeply inspired by prettier. lua-fmt provides an interface to format Lua code that conforms to a single and consistent standard.

While not implemented yet, the interface will be customizable to tailor the output to the user's preferences: linebreaks, string style, etc.

Installing

• npm install lua-fmt

Usage

API

import {formatText} from 'lua-fmt';
console.log(formatText('local hello = "Hello"; print(hello .. " world!")'))

Command Line

Format a single file:

• luafmt test/lua-5.3.4-tests/calls.lua

Format a stream from stdin:

• cat test/lua-5.3.4-tests/calls.lua | luafmt --stdin

TODO

• Add support for a .luafmt preferences file

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• Oskar Schöldström - luaparse: A Lua parser written in JavaScript
• Christopher Chedeau - prettier: Prettier is an opinionated JavaScript formatter.
• Ben Newman - recast: JavaScript syntax tree transformer, nondestructive pretty-printer, and automatic source map generator.