WIP Godot scene parser in Smalltalk Compiler-Compiler (SmaCC) in glamorous toolkit

GodotSceneParser.smacc

Start
	: Section+
	;

Section
	: Header ContentParam*
	;

Header
	: <leftBracket> <name>  HeaderParam* <rightBracket>
	;

<leftBracket> : \[ ;

<rightBracket>: \] ;

# no prefix number
# \w is letter, number or underscore
<name>
	: ( [a-zA-Z]  | _ ) \w*
	;

<whitespace>: \s+ ;

# Key=Value
HeaderParam
	: Key <equal> Value
	;
Key : <name> ;
<equal> : \= ;
Value
	: <name>
	| <number>
	| <string>
	| FunctionCall
	;

#All number literals
<number> : <integer> | <floatnumber>;

# Integer literals
<decimalinteger> :  [1-9] [0-9]* | 0 ;
<integer> :  <decimalinteger>;

#Float literals
<pointfloat> :  ([0-9]+ \. [0-9]*) | (\. [0-9]+) ;
<exponentfloat> :  ([0-9]+ | <pointfloat>) (e | E) (\+|\-)? [0-9]+ ;
<floatnumber> :  <pointfloat> | <exponentfloat> ;

<string>
	: \" [^\"]* \"
	;

FunctionCall
	: <name> <leftBrace> Value?  <rightBrace>
	;

<leftBrace>
	: \(
	;

<rightBrace>
	: \)
	;

ContentParam
	: Key  <equal> Value
	;

SimpleTest.tscn

[gd_scene load_steps=2 format=2]

[ext_resource path="res://icon.png" type="texture" id=1]

[node name="Node2D" type="Node2D"]

[node name="Sprite" type="Sprite" parent="."]
texture = ExtResource( 1 )

Just managed to fix the FunctionCall scanning by removing all references to , so now these are correctly implied by SmaCC. 🥳