Excluding/Disabling Validation in Eclipse

Question

I have the (mis)fortune of having a large project source-base in which I am working primarily on PHP and JavaScript. I have to have the full project area as the project root

Answer 1

It is not really possible to select a directory, at least under Windows.

After having pressed Preferences->Validation->Settings->Add Exclude Group->Add Rule->Folder or filename->Browse Folder->(selecting some directory)->[OK]

The "Browse for folder" dialog is being closed, with the "File or folder" field staying empty.