Keyboard Key Reassignment

                Esc [#;#; ... #p
                Esc ["string";p
                Esc [#;"string";#;#;"string";#p
                (or any other combination of strings
                and decimal numbers)

        The first ASCII code in the control sequence which code
        is being mapped. The remaining sequence of ASCII codes
        generated when this key is intercepted. However, if the
        first first code in the sequence is zero (NUL) then the
        first and second code make up an extended ASCII
        re-definition.