Eclipse Community Forums: TMF (Xtext) » Xtend Template Expressions using ' at the end of '''

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Wed, 31 August 2016 08:37

Eclipse User

Hello,

we have some Extension-Methods like

def buildAName(p1, p2, p3) {
    '''p1.p2_p3'''
}

Some of these methods have to return a value encapsuled in '<value>' (single quote).

So... that is not valid in xtend.

def buildAName(p1, p2, p3) {
    ''''p1.p2_p3''''
}

The ' at the end makes an compiler error.

This helps, but... not so beautiful in the output.

def buildAName(p1, p2, p3) {
    ''''p1.p2_p3' '''
}

Is there a possibility to "mask" the second ' at the end or something like that?

Thank you for your support,
Tobias

Wed, 31 August 2016 08:56

Eclipse User

You could write an extension method that puts the result string in single quotes:

	def buildAName(String p1, String p2, String p3) {
		'''«p1».«p2»_«p3»'''.quote
	}
	
	def quote (CharSequence s) {
		"'"+s+"'"
	}

Wed, 31 August 2016 08:58

Eclipse User

simply escaping does not work?

	def buildAName(String p1, String p2, String p3) {
    	return '''\'p1 p2 p3\'''
	}

Wed, 31 August 2016 17:02

Eclipse User

That not works.

class Main {
	def static void main(String[] args) {
		val x = '''\'blabla\'''
		println('''"«x»"''')
	}
}

will procude the output

"\'blabla\"

Wed, 31 August 2016 17:05

Eclipse User

I know the with the quotation in an extension method, but it's not so sexy as the Template Expression Language Wink

... but that is the only solution that i can imagine.

Thank you!

Thu, 01 September 2016 00:56

Eclipse User

Can you open a ticket for that

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