On Friday, December 27, 2002, at 11:06 AM, Jim Hurley wrote:
But that will be a problem in handlers which count parameters in this way. I get the feeling there is a subtle difference between "empty" and "missing"???????The number of parameters is statically defined by the caller and is specified by the number of arguments. It has nothing to do with the nature of the data. In your example, the first call to print 1 has one parameter and the second call has two.
The function params() can be easily fooled, but with "do", paramCount() and param(), you should be able to do what you want.
(If you want to pass arrays, then you may need to limit the number of args and put variable names in the "do" string instead of param(). Arrays lose their values if a returned value and a parameter in the same expression. I think numbers will be OK.)
The subtle difference between empty and missing is the paramCount() in the called handler and in the actual args in the calling line of the calling handler.
Dar Scott
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