Model:
	(material+=Materials)*(matetrial_transfr+=Material_transformations)
	
	*(final_product+=FinalProduct)*(caracteristiques+=Caracteristique);
	
	
Materials:
	'Materials''=''{'(numberofmaterials+=Numberofmaterial)+'}'
;

Numberofmaterial:
	
	name=ID;	
	
Material_transformations:
	
		
immediate_Material_A=Immediate_Material_A
	
		

immediate_Material_B=Immediate_Material_B;

Immediate_Material_A:
	name=ID '=' '{'(((numberofmaterials+=Numberofmaterial))'[''{'(mixtures+=Mixture)'}'']' ',')+ '}' '[' '{' 'Homogeneity''=' homogeneity=Boolean'}'']' 
;

Immediate_Material_B:
	name=ID '=''{'ref=[Immediate_Material_A] '}''[''Temperature'':' temperatur=INT('°c')']'
;
	
 
 FinalProduct:
	
	Final_Product=ID '=' '{' ref=[Immediate_Material_B]'}''[' 'Porduct_Category' ':' "Food" ']';
	
	
Caracteristique:
	Production_Requirements=ID '=''{''Space_Required'':' value0=INT'm' '*' value1=INT'm' '*' value2=INT'm''}';
	
	
Mixture:
	'Mixture_portion'':' qunatity=DOUBLE '%';	
	
DOUBLE returns ecore :: EDouble:'-'?INT ('.'INT)?;

Boolean:
	'true'|'false';

Materials = {water, noodles, sauce}

Transformations = {
  boiledNoodles = {noodles [{portion:30%}], water[{portion: 70%}]} [{temp: 90°C}]
  yummyPasta = {boiledNoodles[{portion: 90%}], sauce[{portion:10%}]}
}
Product = {yummyPasta}[{category:Food}]

Model:
    'Materials' '=' '{' (materials+=Material (','materials+=Material)*)? '}'
    'Transformations' '=' '{'
        transformedMaterials+=TransformedMaterial*
    '}'
    'Product' '=' '{' material=[AbstractMaterial]  '}'('[' attributes=Attributes']')?
;

AbstractMaterial:
    Material | TransformedMaterial
;

TransformedMaterial:
    name=ID '=' '{' (parts+=TransformationPart (','parts+=TransformationPart)*)? '}'  ('['attributes=Attributes ']')?
;

TransformationPart:
    material=[AbstractMaterial] ('['attributes=Attributes ']')?
;
    
Material: name=ID;    

Attributes:
   {Attributes} '{' (attributes+=Attribute(','ttributes+=Attribute)*)? '}'
; 

Attribute:
    name=ID ":" value=Value
;

Value:
    IdValue | NumericValue
;

IdValue:
    value=ID
;

NumericValue:
    value=INT unit=("°C"|"%")?
;

Model:
	{Model}
	'Materials' '{' initialMaterials += InitialMaterial* '}'
	'Transformations' '{'
		intermediateMaterials += IntermediateMaterial*
	'}'
	//product left as an exercise
;

Material:
  InitialMaterial | IntermediateMaterial
;

InitialMaterial:
	name = ID
;

IntermediateMaterial:
	name = ID '=' productionRule = ProductionRule
;

ProductionRule:
  CompositeRule | AtomicRule
;

CompositeRule:
	//you might want to allow nested ProductionRules here. I only allowed one level of nesting by referencing the AtomicRule 
  '{' parts += AtomicRule+ '}' ('[' properties += Property* ']')?
;

AtomicRule:
  '{' material = [Material] '}' ('[' properties += Property* ']')?
;


//properties left as an exercise
Property:
	'{' 'hot' '}'
;