/sys$common/syshlp/helplib.hlb Lexicals, F$EDIT, Arguments  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 string

    Specifies a character string to be edited. Quoted sections of the
    string are not edited.

 edit-list

    Specifies a character string containing one or more of the
    following keywords that specify the types of edits to be made
    to the string:

    Edit          Action

    COLLAPSE      Removes all spaces or tabs.
    COMPRESS      Replaces multiple spaces or tabs with a single
                  space.
    LOWERCASE     Changes all uppercase characters to lowercase.
    TRIM          Removes leading and trailing spaces or tabs.
    UNCOMMENT     Removes comments.
    UPCASE        Changes all lowercase characters to uppercase.

    If you specify more than one keyword, separate them with commas
    (,).  Do not abbreviate these keywords.

    Edits are not applied to quoted sections of strings; therefore,
    if a string contains quotation marks (" "),  the characters
    within the quotation marks are not affected by the edits
    specified in the edit list.

                                   NOTE

       When UPCASE is specified with LOWERCASE in an edit-list,
       UPCASE takes precedence.