1 6/29/83 forum request: previous_unseen, pu
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 3 Syntax:  pu {trans_spec} {-control_args}
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 5 
 6 Syntax as an active request:  [pu {trans_spec} {-control_args}]
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 8 
 9 Function:
10 Prints or returns the transaction index of the first transaction before
11 the specified transaction which has not been marked as seen, or before
12 the current transaction if no trans_spec is given.
13 
14 
15 Arguments:
16 trans_spec
17    is the transaction for which the previous_unseen transaction is desired.
18 
19 
20 Control arguments:
21 -include_deleted, -idl
22    print or return the index of the previous_unseen transaction even if
23    it is deleted.
24 -only_deleted, -odl
25    print or return the index of the previous_unseen deleted transaction.
26 -only_non_deleted, -ondl
27    print or return the index of the previous_unseen non-deleted
28    transaction.  (Default)