Unassigned function (AREV Specific) [Revelation On-Line Wiki]

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At 28 JUL 2005 06:31:08PM Ellen Fox wrote:

AREV Specific

We have upgraded to Arev 3.12 within our code there is a function

entitled UNASSIGNED. I though this was used to check if a variable

was not unassigned, but I can't seem to get it to work. Does

anybody know anything about it?

At 28 JUL 2005 08:22PM Paul Rule wrote:

Thats correct.

In your program, use DECLARE FUNCTION UNASSIGNED

Then you can use it.

eg:

If UNASSIGNED(test) then test="

At 02 AUG 2005 04:26PM Jim Jefferson wrote:

And we use it a lot here, to make subroutines callable from other programs or the command line/VOC items, ala:

(not good code, but illustrative)

expendable subroutine xxx(arg1, arg2, etc.)

if (unassigned(arg1)) then

called from a command line; parse it for the args)
 cmd=@sentence
 arg1=field(cmd,' ',2)
 arg2=field(cmd,' ',3)
 ...and so on...
end

At 02 AUG 2005 08:41PM Ellen Fox wrote:

It was a variable definition issue. Thanks

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