static void unixcurses_defkeys( void )
{
    // keypad 0-9 (only if the "application mode" was successfully initialized)
    define_key("\033Op", 1000);
    define_key("\033Oq", 1001);
    define_key("\033Or", 1002);
    define_key("\033Os", 1003);
    define_key("\033Ot", 1004);
    define_key("\033Ou", 1005);
    define_key("\033Ov", 1006);
    define_key("\033Ow", 1007);
    define_key("\033Ox", 1008);
    define_key("\033Oy", 1009);

    // non-arrow keypad keys (for macros)
    define_key("\033OM", 1010); // Enter
    define_key("\033OP", 1011); // NumLock
    define_key("\033OQ", 1012); // /
    define_key("\033OR", 1013); // *
    define_key("\033OS", 1014); // -
    define_key("\033Oj", 1015); // *
    define_key("\033Ok", 1016); // +
    define_key("\033Ol", 1017); // +
    define_key("\033Om", 1018); // .
    define_key("\033On", 1019); // .
    define_key("\033Oo", 1020); // -
    // variants.  Ugly curses won't allow us to return the same code...
    define_key("\033[1~", 1031); // Home
    define_key("\033[4~", 1034); // End
    define_key("\033[E",  1040); // center arrow
}
int unixcurses_get_vi_key(int keyin)
{
    switch(keyin)
    {
    case 1001: return 'b';
    case 1002: return 'j';
    case 1003: return 'n';
    case 1004: return 'h';
    case 1005: return '5';
    case 1006: return 'l';
    case 1007: return 'y';
    case 1008: return 'k';
    case 1009: return 'u';
    case 1031: return 'y';
    case 1034: return 'b';
    case 1040: return '5';
    case KEY_HOME:	return 'y';
    case KEY_END:	return 'b';
    case KEY_DOWN:	return 'j';
    case KEY_UP:	return 'k';
    case KEY_LEFT:	return 'h';
    case KEY_RIGHT:	return 'l';
    case KEY_NPAGE:	return 'n';
    case KEY_PPAGE:	return 'u';
    case KEY_A1:	return 'y';
    case KEY_A3:	return 'u';
    case KEY_B2:	return '5';
    case KEY_C1:	return 'b';
    case KEY_C3:	return 'n';
    case KEY_SHOME:	return 'Y';
    case KEY_SEND:	return 'B';
    case KEY_SLEFT:	return 'H';
    case KEY_SRIGHT:	return 'L';
    }
    return keyin;
}
// Certain terminals support vt100 keypad application mode only after some
// extra goading.
#define KPADAPP "\033[?1051l\033[?1052l\033[?1060l\033[?1061h"
#define KPADCUR "\033[?1051l\033[?1052l\033[?1060l\033[?1061l"

#ifdef CURSES_USE_KEYPAD
    write(1, KPADAPP, strlen(KPADAPP));
#endif

    unixcurses_defkeys();

#ifdef CURSES_USE_KEYPAD
    write(1, KPADCUR, strlen(KPADCUR));
#endif

extern int unixcurses_get_vi_key(int keyin);

    default: return unixcurses_get_vi_key(keyin);