As for the actual problem, I would go with a simpler method. Simply push all the keywords into a vector of strings, then load in the file to check against (a txt file) into another vector of strings. Then filter out the keywords manually, or get a little more elegant with a function such as SetIntersection() to find the similarities between the two, pushed into another vector. You can then use the resultant vector to do whatever parsing you wish (add the url info, etc)

This will cut your code down by about 70%, and will get you brownie points with your teacher =)