Model:
	greetings+=Greeting*;
	
Greeting:
	'Hello' name=ID ':'
		(phrases+=ID*)	
	'!'
;

def dispatch void format(Model model, extension IFormattableDocument document) {
		for (Greeting greeting : model.getGreetings()) {
			greeting.format;
		}
	}
	
	def dispatch void format(Greeting greeting, extension IFormattableDocument document) {
		var close = greeting.regionFor.keyword(greetingAccess.exclamationMarkKeyword_4)
		var open = greeting.regionFor.keyword(greetingAccess.colonKeyword_2)		
		open.append[newLine]
		close.append[newLine]
		interior(open,close)[indent]
		
		for (String phrase : greeting.phrases) {
			phrase.format;
		}
	}
	
	def dispatch void format(String phrase, extension IFormattableDocument document) {
		/// how do I format the phrase when it is a string
	}

Hello John :
	How are you	
	I am fine!
Hello Anne :
	Me too
!

greeting.allRegionsFor.features(MyDslPackage.Literals.GREETING__PHRASES).forEach[prepend[indent] append[newLine]]