Removed excessive spaces from enum values

[Micovec]

While testing my parser for NeTEx I have found these enum values that contain extra spaces. Because of that the parser cannot parse the files.

Fixes: #1053

[skinkie]

@Micovec while they are not pretty, they are not wrong right? I think your parser should handle this.

[Micovec]

@skinkie I guess you're right. I did not look up the type of these enumerations. They are xsd:NMTOKEN which allows leading and triling spaces.

I'm closing this PR and will try to resolve it in the parser.

[skinkie]

@thbar @TuThoThai I think we should fix this, but leave open an example to tests parsers.

[Micovec]

The reason I closed this PR was due to the fact that C# class for deserializing xml files does not support xsd:NMTOKEN for enumerations.

I could circumvent it in the parser if the owner of XmlSchemaClassGenerator would approve my suggestion (I have not yet created an issue in that repo). I use that project to generate files for parsing.

Another fix would be to ask .NET developers for a support of xsd:NMTOKEN but I doubt that will go anywhere. It's an unusual request. Besides the class for deserializing definitely does not support the whole xsd.

If you are willing to fix it I would be more than happy.

[skinkie]

If you are willing to fix it I would be more than happy.

The point is, your parser needs to be able to parse valid XML. Otherwise it will be again a specialistic attempt having too many limitations. I'll try to send you an email.