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another IDL oddity [message #65174]

Tue, 17 February 2009 07:57

Bringfried Stecklum is currently offline

Bringfried Stecklum
Messages: 75
Registered: January 1996

Member

Folks, here is another one I recently stumbled upon. How about that

more ~/IDL/my_procedure.pro
pro my_procedure,arg
print,arg
end

within IDL
IDL> my_procedure,'Hello.world'
% Compiled module: MY_PROCEDURE.
Hello.world
IDL> exit

from bash
>echo my_procedure,'Hello.world'|idl
IDL Version 6.4 (linux x86_64 m64). (c) 2007, ITT Visual Information Solutions
Installation number: 12207.
Licensed for use by: TLS Tautenburg

% Compiled module: LOADCT.
% Compiled module: FILEPATH.
% Compiled module: PATH_SEP.
% Expression must be a structure in this context: HELLO.
% Execution halted at: $MAIN$

This is just an example. In the real case, the argument is a file name with a
suffix which IDL refuses to treat. The strange thing is that the argument is
checked before the compilation of the procedure. The latter happens indeed

>echo my_procedure|idl
IDL Version 6.4 (linux x86_64 m64). (c) 2007, ITT Visual Information Solutions
Installation number: 12207.
Licensed for use by: TLS Tautenburg

% Compiled module: LOADCT.
% Compiled module: FILEPATH.
% Compiled module: PATH_SEP.
% Compiled module: MY_PROCEDURE.
% PRINT: Variable is undefined: ARG.
% Execution halted at: MY_PROCEDURE 2 /home/stecklum/IDL/my_procedure.pro
% $MAIN$

Any hints?

Regards, Bringfried

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[Message index]

		another IDL oddity By: Bringfried Stecklum on Tue, 17 February 2009 07:57
		Re: another IDL oddity By: Nigel Wade on Wed, 18 February 2009 02:43
		Re: another IDL oddity By: Bringfried Stecklum on Tue, 17 February 2009 11:07
		Re: another IDL oddity By: jschwab@gmail.com on Tue, 17 February 2009 08:15

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