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Set indention between squared brackets [message #1713335]

Tue, 03 November 2015 13:01

John Cole

Messages: 66
Registered: June 2013

Member

Hello,

currently, I am working with the Formatter class, to autoformat my DSL code using the Eclipse shortcut CTRL + Shift + F.

In my DSL definition I have the following rules:

Element:
	'Element' name=ID
	description=STRING?
	('param1' param1=DOUBLE)?
	nestedElement=NestedElement?
	'end' 'Element' 
;

NestedElement:
	'NESTEDELEMENT' '[' (
		('param2' param2=DOUBLE)?
		('param3' param3=DOUBLE)?
		('param4' param4=DOUBLE)?
	) ']'
;

This allows me to define the following code in my editor:

Element MyElement
	"My description"
	param1 0.4
	
	NESTEDELEMENT [
		param2 1.2
		param3 3.2
		param4 4.1
	]
	
end Element

So inside my element I have another nested element, which is defined between squared brackets. This is the way, I am formatting the code, without consideration of the nested element:

@Override
protected void configureFormatting(final FormattingConfig c) {
	ElementElements in = f.getElementAccess();
	
	c.setIndentation(in.getNameAssignment_0_1(), in.getEndKeyword_1_1());
	wrapAfter(in.getNameAssignment_0_1());
	wrapAfter(in.getDescriptionAssignment_0_2());
	wrapAfter(in.getNestedElementAssignment_0_3_1());
	c.setSpace("\n").before(in.getEndKeyword_1_1());
}

What I am trying to do is, to to indent the params of the nested elements as you can see in the second listing. How do I access the code between the squared brackets?

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Re: Set indention between squared brackets [message #1713384 is a reply to message #1713335]

Tue, 03 November 2015 17:07

Thomas Fritsch

Messages: 28
Registered: April 2013
Location: Germany

Junior Member

Try something like this in your configureFormatting method:

for (Pair<Keyword, Keyword> pair : getGrammarAccess().findKeywordPairs("[", "]") {
	c.setIndentation(pair.getFirst(), pair.getSecond());
	c.setLinewrap().after(pair.getFirst());
	c.setLinewrap().around(pair.getSecond());
}

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