Re: [Gramps-devel] [Gramps-users] GrampsXMLview

[Don A. <do...@gr...>]

On Sun, 2009-02-15 at 23:55 +0000, Gary Burton wrote:

> > 2.. Once you go down the direction, everyone expects you to support 
> >     everything, which is not realistic.
> > 3. Handling all the extensions makes your code very ugly and very hard
> >     to maintain.
> 
> This last point can be alleviated somewhat by designing the import/export 
> code as base classes and, where necessary, methods can be overridden with 
> a different implementation in descendant classes where we wish to support 
> a vendor's GEDCOM variant. Not that I am suggesting we actually support 
> anything other than plain 5.5 GEDCOM. :)
> 

Unfortunately, it is not that easy. You would have to have a different
class for each *version* of a target program. Family Tree 5 GEDCOM is
very different from Family Tree 7 GEDCOM.

That is the problem - is just spirals out of control quickly.

Don