using of namespace in KDevPlatform?

[Jens Herden]

Hi,

I just did a grep for "namespace" in KDevPlatform and I want to ask some 
questions:

1) Inside of Teamwork I can find many definitions of namespaces: Teamwork, 
Utils, Tree, Meta, SumTree, FuzzySearch and Diff2. Where do all these 
namespaces come from? Do we need/want them all?

2) What is the rule for the usage of namespaces at all? Most plugins are not 
using the KDevelop namespace, but projectmanagerview is?

3) In duchainmodel.cpp I found these lines:
	using namespace KTextEditor;
	using namespace KDevelop;
Isn't there a small risk that in the future new added names might clash? 


Jens
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