CODEWITHSUNDEEP
dslxtext
pepelu
pepelu

Reputation: 388

Xtext zero ('0') not matching INT

I've written an Xtext grammar that describes a list of coordinates:

Model:
    coordinates+=Coordinates*
;
Coordinates:
    '(' x=INT ',' y=INT ')'
;

However, when using the parsingTest automatically created with a new Xtext project and printing println(EmfFormatter.objToStr(result)) for this program:

(2,1)
(2,0)
(0,1)
(0,0)
(1,1)

I get the following representation of the AST:

Model {
    cref Coordinates coordinates [
        0: Coordinates {
            attr EInt x '2'
            attr EInt y '1'
        }
        1: Coordinates {
            attr EInt x '2'
        }
        2: Coordinates {
            attr EInt y '1'
        }
        3: Coordinates {
        }
        4: Coordinates {
            attr EInt x '1'
            attr EInt y '1'
        }
    ]
}

What I think is happening is that '0' does not match INT for some reason. I could create a new datatype, but seems quite ugly not to use the provided INT. Any ideas?

Upvotes: 0

Views: 50

Answers (1)

Christian Dietrich
Christian Dietrich

Reputation: 11868

The answer is easy. There is no problem. The EmfFormatter simply does not print values equal to default values

Upvotes: 1

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