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[REBOL] Newbie question about func refinements

From: edoconnor:gm:ail at: 13-Aug-2008 16:14

I'm sure this has been covered elsewhere, but I couldn't find it. Given a function, such as: sum: func ["Return the sum of two numbers." arg1 [number!] "first number" arg2 [number!] "second number" /avg "return the average of two numbers" /sub "subtracts the first from the second" /div "divides the first into the second" ][ switch/default self/refinement [ avg [arg1 + arg2 / 2] sub [arg1 - arg2] div [arg1 / arg2] ][arg1 + arg2] ] Is there a way to dynamically obtain a refinement value so I can use it in a switch statement? In the example above, the pseudo-code expression "self/refinement" is what I'm looking for. Odd that I've never encountered this over the years. I'm sure someone here can set me straight on it. Thanks, Ed