/CASE_MATCHING
       /NOCASE_MATCHING (D)

    Specifies whether LSE uses the case of words in the search
    string to determine the case for the replacement string. The
    four conditions are: uppercase, lowercase, capitalized, or
    undetermined. For example, if a word in the search string is
    all uppercase, all the letters of the corresponding word in the
    replacement string become uppercase. If a word in the search
    string does not match the criteria for uppercase, lowercase,
    or capitalization, or there are no alphabetic characters in
    the search string word, its case is undetermined and LSE does
    not modify the case of the corresponding word in the replacement
    string.

    If the replacement string contains more than one word, LSE
    respectively matches the case of words in the replacement string
    with the case of the corresponding words in the search string.
    If the search string contains fewer words than the replacement
    string, LSE matches the case of the additional words of the
    replacement string with the case of the last word in the search
    string.

    Specifying the /NOCASE_MATCHING qualifier causes LSE not to modify
    the case of the replacement string to match that of the search
    string.