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#[derive(Debug, Clone, PartialEq, Copy)]
pub enum KeyPress {
    NULL        = 0,     
    CTRL_A      = 1,     
    CTRL_B      = 2,     
    CTRL_C      = 3,     
    CTRL_D      = 4,     
    CTRL_E      = 5,     
    CTRL_F      = 6,     
    CTRL_H      = 8,     
    TAB         = 9,     
    CTRL_K      = 11,    
    CTRL_L      = 12,    
    ENTER       = 13,    
    CTRL_N      = 14,    
    CTRL_P      = 16,    
    CTRL_T      = 20,    
    CTRL_U      = 21,    
    CTRL_W      = 23,    
    ESC         = 27,    
    BACKSPACE   = 127,    
}

pub fn u8_to_key_press(i: u8) -> KeyPress {
    match i {
        0   => KeyPress::NULL,
        1   => KeyPress::CTRL_A,
        2   => KeyPress::CTRL_B,
        3   => KeyPress::CTRL_C,
        4   => KeyPress::CTRL_D,
        5   => KeyPress::CTRL_E,
        6   => KeyPress::CTRL_F,
        8   => KeyPress::CTRL_H,
        9   => KeyPress::TAB,
        11  => KeyPress::CTRL_K,
        12  => KeyPress::CTRL_L,
        13  => KeyPress::ENTER,
        14  => KeyPress::CTRL_N,
        16  => KeyPress::CTRL_P,
        20  => KeyPress::CTRL_T,
        21  => KeyPress::CTRL_U,
        23  => KeyPress::CTRL_W,
        27  => KeyPress::ESC,
        127 => KeyPress::BACKSPACE,
        _   => KeyPress::NULL
    } 
}