hagusen / gobo Goto Github PK

Try the formatter here!

Gobo is an opinionated formatter for GameMaker Language.

x = a and b or c  a=0xFG=1 var var var i := 0
do begin
;;;;show_debug_message(i)
;;;;++constructor
end until not constructor < 10 return

call()

x = a && b || c
a = 0xF
G = 1
var i = 0
do
{
    show_debug_message(i)
    ++constructor
} until (!constructor < 10)
return call()

Gobo is written in C# and compiles to a self-contained binary using Native AOT in .NET 8.

Gobo uses a custom GML parser to read your code and ensure that formatted code is equivalent to the original. The parser is designed to only accept valid GML (with a few exceptions) to ensure correctness. There is no officially-documented format for GML's syntax tree, so Gobo uses a format similar to JavaScript parsers.

Gobo converts your code into an intermediate "Doc" format to make decisions about wrapping lines and printing comments. The doc printing algorithm is taken from CSharpier, which is itself adapted from Prettier.