The statement code M transfers the line numbers and work file numbers corresponding to the specified record to the EDT copy buffer so that the record can subsequently be moved using one of the statement codes A, B or O.
Statement code | Key |
M | [DUE] or [F2] |
As soon as one of the statement codes A, B or O is entered, the move operation is executed, i.e. the records are inserted in the corresponding position and are deleted at their original position. The content of the copy buffer is then deleted.
If, when M is specified, the copy buffer already contains entries that were generated using the statement codes C or R then the copy buffer is deleted before the specified line is entered and the message EDT0295 is output.
The copy buffer can also be filled with lines taken from different work files. The records determined by the copy buffer can then be moved into any work file.
The copy buffer contains the work file and line numbers of the records collected with M. The line numbers and content of the records that are to be copied should therefore not be modified between being collected with M and the performance of the copy operation with the statement codes A, B or O. However, if this does occur then the new contents are moved. If any records have been deleted in the interim then these are skipped without any warning during the move operation.
Since the copy buffer only contains work file and line numbers, no conversion of the selected lines is performed during collection. Since the target character set is not determined until the target work file is specified, any conversion that is required is not performed until the statement codes A, B or O are evaluated (see section “Character sets”).
Note
If the screen is split then lines can be moved from the first to the second work window in a single dialog step. If items are moved from the second to the first work window then two dialog steps may be necessary depending on the processing sequence.
Example
Line 3.00 is to be moved to a position after line 5.00. This is achieved by entering statement code M in line 3.00, statement code A in line 5.00.
Line 3.00 has been moved to a position after line 5.00.