// key != 0
        switch (key) {
            case 0x1B: // Esc
                e.doit= false;
                hide();
                break;

            case '\n': // Ctrl-Enter on w2k
            case '\r': // Enter
                e.doit= false;
                insertSelectedProposalWithMask(e.stateMask);
                break;

            case '\t':
                e.doit= false;
                fProposalShell.setFocus();
                return false;

            default:
                ICompletionProposal p= getSelectedProposal();
                if (p instanceof ICompletionProposalExtension) {
                    ICompletionProposalExtension t= (ICompletionProposalExtension) p;
                    char[] triggers= t.getTriggerCharacters();
                    if (contains(triggers, key)) {
                        e.doit= false;
                        hide();
                        insertProposal(p, key, e.stateMask, fContentAssistSubjectControlAdapter.getSelectedRange().x);
                    }
            }
        }