Compare extracted information from multiple files.

Question

Ok, stay with me on this one. I have a bunch of css files with classes defined in them. They are like this: .toolbar{......} .addpage{......} I have managed to extract the just the classnames with a bit of help from a fellow member. now i have another bunch of .vb, .aspx files which use these css classes in them. they in the form: Now I have to extract the classnames after the 'cssClass' key word and then compare all the classnames with the previously extracted ones and determine which Classes are not being used. any help/pointers/suggestion will be appreciated. Thanks a lot.