/* WinSwap for Directory Opus 5.
 By Leo 'Nudel' Davidson for Gods'Gift Utilities
 email: leo.davidson@keble.oxford.ac.uk  www: http://info.ox.ac.uk/~kebl0364/

$VER: WinSwap.dopus5 1.4 (26.12.95)

   NOTE: This script _requires_ DOpus v5.11 or above.
   NOTE: DOpusFuncs is an assembler version of this (and other) scripts.

   This script will swap around your source and destination listers,
   like the old swap command in DOpus4.

   Obviously, in DOpus5 it is possible to simply move the two lister
   windows, but somethimes this isn't desireable. For example, when they
   are locked in place via the option in the pull-off menu; when you're
   too lazy to move the windows; or when the two windows are positioned
   such that moving them would be difficult or would make a mess.

Call as:
------------------------------------------------------------------------------
ARexx	DOpus5:ARexx/WinSwap.dopus5 {Qp}
------------------------------------------------------------------------------
Turn off all switches.

   v1.01 -> v1.02 - Made "PathOnly" the default behaviour and removed the
                    option to copy the window dimensions (Did anyone want it?).
                    Some minor tidying up.
                    Now checks to make sure the DOPUS.x port exists.
    v1.02 -> v1.3 - Now uses Show() instead of ShowList(). (Thanks Stoebi)
                    Style Guide compliant version numbering and $VER string.
     v1.3 -> v1.4 - Works properly with paths containing spaces, finally.
*/

options results
options failat 99
signal on syntax;signal on ioerr		/* Error trapping */
parse arg DOpusPort
DOpusPort = Strip(DOpusPort,"B",'" ')

If DOpusPort="" THEN Do
	Say "Not correctly called from Directory Opus 5!"
	Say "Load this ARexx script into an editor for more info."
	EXIT
	END
If ~Show("P",DOpusPort) Then Do
	Say DOpusPort "is not a valid port."
	EXIT
	End
Address value DOpusPort

lister query source stem source_handle.

IF source_handle.count = 0 | source_handle.count = "SOURCE_HANDLE.COUNT" Then Do
	dopus request '"You must have a SOURCE lister!" OK'
	EXIT
	End


lister query dest stem dest_handle.

IF dest_handle.count = 0 | dest_handle.count = "DEST_HANDLE.COUNT" Then Do
	dopus request '"You must have a DESTINATION lister!" OK'
	EXIT
	End

lister query source_handle.0 path
source_path = RESULT
lister query dest_handle.0 path
dest_path = RESULT

lister read source_handle.0 '"'||dest_path||'"'
lister read dest_handle.0 '"'||source_path||'"'

syntax:;ioerr:				/* In case of error, jump here */
EXIT