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[XPAND] complexe SEPARATOR use [message #691530]

Fri, 01 July 2011 16:44

Feriaman

Messages: 4
Registered: July 2011

Junior Member

Hi everyone.

I'm Feriaman, i use XPand in a XText project, it is really impressive. I carefully readed the manual, but i cannot find a way to do something that should be pretty easy.

First question :

I'd like to make a rule like this :

«EXPAND rule FOREACH ABasketOfTomatoesAndCuncumbers SEPARATOR ','»

with :

«DEFINE rule FOR Tomato»«ENDDEFINE»

«DEFINE rule FOR Cuncumber»green«ENDDEFINE»

And I'd like to obtain this :

(Tomato,Cuncumber,Tomato,Tomato,Cuncumber) ---> green,green

But of course i obtain :

(Tomato,Cuncumber,Tomato,Tomato,Cuncumber) ---> ,green,,,green

Second question :

In fact i'd like to output a keword before my enumeration, something like this :

=>green,green

that could be achieve by writing the rule like this :

=>«EXPAND rule FOREACH ABasketOfTomatoesAndCuncumbers SEPARATOR ','»

(Tomato) ---> "" (nothing)

And of course i obtain this :

(Tomato) ---> "=>"

Thanks to every reader.
Thanks to every answerer.

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Re: [XPAND] complexe SEPARATOR use [message #691536 is a reply to message #691530]

Fri, 01 July 2011 16:59

Feriaman

Messages: 4
Registered: July 2011

Junior Member

I just saw i may be in the wrong section... the XPand section may have been more suitable ?
Sorry if i am wrong.

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Re: [XPAND] complexe SEPARATOR use [message #691545 is a reply to message #691530]

Fri, 01 July 2011 17:24

Christian Dietrich

Messages: 13613
Registered: July 2009

Senior Member

Hi, why don't you filter the lists you pass to the foreach e.g. with
a typeselect. Regards Christian

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
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Re: [XPAND] complexe SEPARATOR use [message #691549 is a reply to message #691545]

Fri, 01 July 2011 17:39

Feriaman

Messages: 4
Registered: July 2011

Junior Member

Hi Christian

Thanks alot you solve my problem and made me realize i could use the "Special Collection operations" inside the ".xpt" file ... that i haven't realized yet.
Thanks again.

«IF ABasketOfTomatoesAndCuncumbers.typeSelect(Cuncumber).select(c | c.diametre > 4) != {}-»
     «EXPAND rule FOREACH ABasketOfTomatoesAndCuncumbers.typeSelect(Cuncumber).select(c | c.diametre > 4) SEPARATOR ','-»
«ENDIF-»

[Updated on: Fri, 01 July 2011 17:48]

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