In instances where there are nested
lines, the following rule applies;
dependent upon the selection of the
nesting.
[Level 1 [Level 2 [Level 3 ]]]
[filename [filetype [filemode]]]
braces or brackets on the
operand of a higher level of
only one pair of brackets and the lowest level of nesting is the
operand that is enclosed by the maximum number of brackets. Thus in
the previous example, the user has the option of selecting a file by
filename only, or filename filetype only or by filename filetype
filemode. The user cannot select filetype alone because filetype is
nested
(lower level) operand. The same is true if the user wants to select
filemode; filename and filetype must also be selected.
{spoolid1 spoolid2
indicates that more than one spoolid
Section 3.