MSBuild: transform paths to namespaces

Programmer Question

I have list of items like this:

And I want to transform that to a list of items like this:

clojure.core clojure.set clojure.zip clojure.test.junit

Is there a way to do this with MSBuild transforms? I tried but I can only get at the file name; the extension and the root path, and I can change the separator. But not the path separators.

If not, any other solution that avoids using custom tasks is appreciated.

Find the answer here