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ENUM DATA TYPE [message #1043230]

Wed, 17 April 2013 12:53

junior developer

Messages: 354
Registered: January 2013

Senior Member

Hi All,

I define A enum rule in my grammar this rule is below , EXT is optional but PNG is shows in the ecore by default.I want to dont show PNG(First index).How can I provide shows empty value for EXT.(EXT dont receive First value ) I load Screenshot about ecore property
.....
File returns File:
'File' name=ID (
('location' '=' location=STRING )?
&('date' '=' date=STRING )?
&('ext' '=' ext = EXT )?
) ';'
;
enum EXT :
PNG|TXT |JPG |JAVA | C | BAT |BMP |EXE |COM |DOC |PDF|DOCX|XLS|XLSX
;
.....

Best Regards

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Re: ENUM DATA TYPE [message #1043241 is a reply to message #1043230]

Wed, 17 April 2013 13:09

Christian Dietrich

Messages: 13313
Registered: July 2009

Senior Member

http://www.eclipse.org/forums/index.php/t/263086/

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: ENUM DATA TYPE [message #1043276 is a reply to message #1043241]

Wed, 17 April 2013 13:53

junior developer

Messages: 354
Registered: January 2013

Senior Member

Hi Christian,

Thank you for shared.

Best Regards

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Re: ENUM DATA TYPE [message #1043846 is a reply to message #1043241]

Thu, 18 April 2013 07:27

Claudio Heeg

Messages: 75
Registered: April 2013

Member

Christian Dietrich wrote on Wed, 17 April 2013 15:09

http://www.eclipse.org/forums/index.php/t/263086/

Regarding this, I was wondering whether this is a specific design choice (for default values, specifically, but lacking documentation) or is just like this because the workaround is that easy?
Maybe someone with deeper insight could enlighten me.

[Updated on: Thu, 18 April 2013 07:28]

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Re: ENUM DATA TYPE [message #1043976 is a reply to message #1043846]

Thu, 18 April 2013 10:38

Christian Dietrich

Messages: 13313
Registered: July 2009

Senior Member

From the docs

Quote:

When generating the EPackage (src) from your grammar this will be the first literal you define. As a workaround you could introduce a dedicated none-value or order the enums accordingly.

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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