Re: Gnat 3.13p: Command_Name RM A.15

[Kilgallen@eisner.decus.org.nospam (Larry Kilgallen)]

In article <mailman.979801451.11095.comp.lang.ada@ada.eu.org>, Christoph Grein <christoph.grein@eurocopter.de> writes:
> Thanks to all for their responses.
> 
> Randy Brukardt gave me a nice solution (it may not be applicable for all cases, 
> but for me, it worked).
> 
> The original question was:
> 
> How do I get the full name of Ada.Command_Line.Command_Name? The result of 
> Command_Name is implementation dependent.
> 
> Open the file with the name given by Command_Name, call the Name function which 
> by A8.2(22) must return the full name, then close the file again:

Certainly you are correct that this may not be applicable for all cases.
The assumption that the implementation-dependent Command_Name bears any
relationship to a file name would seem to be fraught with peril.  I have
not used an Ada95 compiler on VMS, but I would expect something called
Command_Name to return the command I had typed, rather than the filename
of the executable image that implemented that command.  Some typical commands
and images they execute are:

	SET PASSWORD		SETP0.EXE
	SET CLASS		SETSHOCLASS.EXE
	SHOW CLASS		SETSHOCLASS.EXE
	SET HOST/HSC		HSCPAD.EXE
	SET HOST/RLOGIN		OPENVMS$RLOGIN.EXE
	SET DISPLAY		DECW$SETSHODIS.EXE

Those commands do not happen to be implemented in Ada, but they could be.

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