Keylogger that records keystrokes and matches up strings in a virtualstringtree

Hello, I need a keylogger that allows me to record keystrokes, now those keystrokes must be combined to form strings that match up strings in a virtualstringtree. eg. if i type ?php it records the keystrokes ?php and shows up all nodes in the virtualstringtree all nodes that have ?php in a specific column It must also be able to match intuitively like this if i type ? php it obviously isnt going to recognise ?php but if go back 4 spaces to ? and continue on from there eg. ?php then it will still match. So no matter how many mistakes i make i can still go and fix it up and it will recognise it. When i press space i want it to recognise that it has to starting a keylogging again with nothing logged. eg. ?php my so because i typed in ?php and then typed a space then followed by m it knows it looking for abbreviations have only m in it (full matches, not partial matches pls) then if i continue to type a y after it, it would match 'my' (full matches) my nodes look like this type PNodeData=^TNodeData; TnodeData= record Title:String; Contents : string; projectname:String; abbreviation : string; end; how i go through all the nodes Node : PVirtualNode; Data : PNodeData; begin Node := [login to view URL]; while Node <> nil do begin Data := [login to view URL](Node); if [login to view URL] = 'such and such' then begin ///do somethign here. end; Node := [login to view URL](node); end; end; Any quesitons pls do not hesitate to ask. Ben