The edit string character A (uppercase letter A) is replaced
    by an alphabetic character from the field's content. The action
    taken when a character in the field is not alphabetic is language
    dependent. See the documentation for each language to determine
    the action taken when a digit or nonalphabetic character occurs.

    CDO Edit       AAAA
    String:
    DTR Edit       AAAA
    String:
    Field Value:   WXYZ
    Edited         WXYZ
    Value:

    You can use the repeat count edit string character to indicate
    that you want to repeat the edit string character A a certain
    number of times. The following two edit strings are equivalent:

    AAAA
    A(4)