Lower to upper

>>>>>>>- Set escape bit =7=
<< go to retrieval =5=
+
[
    , get the char
    [-<+<+<+<+<+>>>>>] Copy it back
    < ----- -----   ----- -----   ----- -----   ---  If its BANG set to 0 =4=

    [ Only goes if nonzero
        [-] clear this to 0
        < Get a fresh value =3=
        -[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[-[>+<[-]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
        If its greater than or equal to 'a' then increase the next value by one and clear to zero ! This byte will be set to 0
        >[-<+>]< Copy the set bit
        < Get a fresh value =2=
        >[ If the bit isnt 0
            - set it to zero
            <----- -----   ----- -----   ----- -----   -- Set a little letter to a big letter
            > go back to the bit
        ]<
        . Print it woo
        [-] escape
    ]
    >>> Go to retrieval =5= unless escape =7=
    + increase it escape occurs if at =7=
    [ if not at =7=
        [-] clear
        <[-] go back and clear =4=
        <[-] go back and clear =3=
        <[-] go back and clear =2=
        <[-] go back and clear =1=
        <[-] go back and clear =0=
        >>>>>+< Set nonescape
    ]
    >
]