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[Xbase] Change keywords of XSwitchExpression [message #1079935]

Mon, 05 August 2013 08:55

Jan Rosczak

Messages: 53
Registered: July 2009
Location: Hamburg, Germany

Member

Hi,

I would like to change the keywords for the XSwitchExpression in Xbase. I would like to transform this:

    switch e {
    case e1 : er1
    ...
    case en : ern
    default : er
    }

to that:

    case of e {
    case e1 : er1
    ...
    case en : ern
    otherwise : er
    }

I managed the "case of" and "otherwise" bits but now the parser complains if I try to write "case" statements, because it expects "case of" and not "case" even so I did not change anything in the XCasePart rule. I guess I have to use syntactic predicates but I could not make it work.

Is this possible somehow?

Thanks
Jan

[Updated on: Mon, 05 August 2013 08:56]

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Re: [Xbase] Change keywords of XSwitchExpression [message #1081398 is a reply to message #1079935]

Wed, 07 August 2013 07:22

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Am 05.08.13 10:55, schrieb Jan Rosczak:
> Hi,
>
> I would like to change the keywords for the XSwitchExpression in Xbase.
> I would like to transform this:
>
>
> switch e {
> case e1 : er1
> ...
> case en : ern
> default : er
> }
>
>
> to that:
>
>
> case of e {
> case e1 : er1
> ...
> case en : ern
> otherwise : er
> }
>
>
> I managed the "case of" and "otherwise" bits but now the parser
> complains if I try to write "case" statements, because it expects "case
> of" and not "case" even so I did not change anything in the XCasePart
> rule. I guess I have to use syntactic predicates but I could not make it
> work.
>
> Is this possible somehow?
>
> Thanks
> Jan
>

Hi Jan,

make sure that you use 'case' 'of' rather than 'case of', e.g. the space
should not be part of the keyword.

Regards,
Sebastian
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