[Rails-devel] XML parsing

[Erik V. <eri...@hc...>]

I have encapsulated parsing the new file Games.xml into a new class
GamesInfo.
In this class I have attempted to work towards an easier way of
traversing the DOM tree.

In fact there are now two completely interchangeable versions of GamesInfo.
In the first one I have done away with all the DOM objects, except Element.
All NodeLists and NamedNodeMaps are now hidden in new XmlUtils methods.

In the second one (GamesInfo2) I have also gotten rid of Element,
replacing it by a new class rails.util.Tag, which hides all DOM objects,
including Element. 
Attributes and inner tags are now available through simple getters.
This version makes XmlUtils redundant (except one method:
findElementInFile(), 
which we can as well move to somewhere else).

Both versions incorporate automatic application of chosen games options
by interpreting the <IfOption> tags that already exist in some game XML
files.
GamesInfo only does that for optional attribute values.
GamesInfo2/Tag also allows optional inner tags (not yet used).

Both ways work equally well, and the code of both GamesInfo versions
is very much alike. I prefer the second version, which requires
an additional class (Tag), but in return makes XmlUtils obsolete.

Any opinions?

Erik Vos