I just stumbled over this and was just curious hows it going with that tutorial?
I have an assignment in school about making it possible to edit xtext grammar in both text and in a graphical view, but since my google-fu seems low I have a hard time finding good examples/source code. But from what I have found it seems GMF is good for what I want to do so I just wanted to check the status of your tutorial.
One of the other Epsilon committers (Louis Rose) is working on such an example but he's now on vacation for the next couple of weeks so this will most probably not become available until then. If you'd like to have a go at it yourself before then I suspect that the *.parser annotation details provided by Eugenia  would be a good place to start.
Just my luck
But thanks for the link, the visualization of an DSL is part of my graduation work so waiting a few weeks might be pushing the deadline so I am glad you shared the link with me. Time to learn how to use GMF together with XText .
Thanks again and have a nice day.
Thanks for the tips Claudio.
Is there a way to download all the files swiftly? It said git repository so tried with svn but it couldn't find the repository so was just curious if there was an swifter way then to manually copy all the files?