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Invert String or Sequence [message #1608529]

Mon, 09 February 2015 15:28

Alexander R

Messages: 211
Registered: July 2013

Senior Member

Hi,

just a simple question: Is there a build-in function for inverting a string or a sequence in ATL?

~Alex

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Re: Invert String or Sequence [message #1608629 is a reply to message #1608529]

Mon, 09 February 2015 16:50

Alexander R

Messages: 211
Registered: July 2013

Senior Member

Took a while..but here is my solution..

helper def : invert(list:Sequence(String)) : Sequence(String) = 	 
	list->iterate(el; invertedList: Sequence(String) =Sequence{} |
	invertedList.prepend(el)
);

~Alex

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Re: Invert String or Sequence [message #1608882 is a reply to message #1608629]

Mon, 09 February 2015 20:42

Dennis Wagelaar

Messages: 589
Registered: September 2012
Location: Belgium

Senior Member

This won't work for regular ATL, but ATL/EMFTVM is based on OCL 2.2 instead of OCL 2.0 and includes the Sequence::reverse() operation. See also http://www.omg.org/spec/OCL/2.2/ for all supported operations (except collectNested()).

Cheers,
Dennis

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