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# MoonPlus
MoonPlus is a compiler with features from [Moonscript language](https://github.com/leafo/moonscript) 0.5.0 and adopting new features to make Moonscript more up to date.
Since original Moonscript has been used to write web framework [lapis](https://github.com/leafo/lapis) and run a few business web sites like [itch.io](https://itch.io) and [streak.club](https://streak.club) with some large code bases. The original language is getting too hard to adopt new features for those may break the stablility for existing applications.
So MoonPlus is a new code base for pushing the language to go forward and being a playground to try introducing new language syntax or programing paradigms to make Moonscript language more expressive and productive.
## Features
* No other dependencies needed except modified **parserlib** library from Achilleas Margaritis with some performance enhancement. **lpeg** library is no longer needed.
* Written in C++17.
* Support full Moonscript language features, generate the same Lua codes with original compiler.
* Reserve line numbers from Moonscript sources in compiled Lua codes to help with debugging.
* See other details in the [changelog](./CHANGELOG.md).
## Installation & Usage
* **Lua Module**
Install [luarocks](https://luarocks.org), a package manager for Lua modules. Then install it as a Lua module.
```sh
> luarocks install moonplus
```
  Require the module in Lua:
```Lua
require("moonp")("main") -- require `main.moon`
local moonp = require("moonp")
local codes, err, globals = moonp.to_lua([[
f = ->
print "hello world"
f!
]],{
implicit_return_root = true,
reserve_line_number = true,
lint_global = true
})
```
* **Binary Tool**
Clone this repo, then build and install executable with:
```sh
> make install
```
  Use MoonPlus tool with:
```sh
> moonp -h
Usage: moonp [options|files|directories] ...
-h Print this message
-e str Execute a file or raw codes
-t path Specify where to place compiled files
-o file Write output to file
-p Write output to standard out
-b Dump compile time (doesn't write output)
-l Write line numbers from source codes
-v Print version
-- Read from standard in, print to standard out
(Must be first and only argument)
Execute without options to enter REPL, type symbol '$'
in a single line to start/stop multi-line mode
```
## License
MIT
|
