Re: bug in object IDs ? O vs 0

[Mårten Svantesson <msv kth se>]

24 okt 2007 kl. 05.03 skrev Lars Clausen:

> brian remedios said:
> > I'm working on a Dia diagram generator and I noticed that the  
> > object IDs
> > being generated seem numerical but instead of
> > a leading zero they are prefixed with an 'O' (the letter) instead:
> >
> >     <dia:object type="Geometric - Perfect Circle" version="0"  
> > id="O1">
> >
> > Is this a typo in the code or intentional?  It doesn't seem to  
> > change per
> > any of the basic object types so I'm not sure why
> > Dia does this. It would be better as a pure integer I think.
>
> That is intentional, though probably a poor choice.  It's an internal
> identifier within the XML file only (for connections), and the O  
> stands
> for Object.

Also, it cannot be a pure integer, since this would violate the XML  
standard. Id attributes have to start with a letter or one of the  
characters _ or :.
http://www.w3.org/TR/2006/REC-xml-20060816/#NT-Name

                - Mårten
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