From: Henrik Horneber <ryco@...>
Date: 2004-08-14T05:13:34+09:00
Subject: Re: Question: A method for summing several variables

Hi!

I guess you meant something like this:


# $SAFE = 3
box1_1 = "2.3"
box1_2 = "2.3"
box1_3 = "3.3"
box1_4 = "5.3"
box1_5 = "6.3"
box1_6 = "-2.0"
box1_7 = "1.3"
box1_8 = "-2.3"
box1_9 = "-2.3"

boxStr = "box1_"
sum = 0
1.upto(9) do |i|  boxVarStr =  boxStr + i.to_s
	 sum += instance_eval(boxVarStr).to_f
end
puts sum



But unfortunately, this
> We set $SAFE to 3 in our application - it needs to be this value. 

breaks it. Unless there is a way to access local variables given their 
name as a String that I don't know of (which is not unlikely at all 
since I'm kinda new to this too ), you're still stuck.
But maybe this will give you a hint where to look.

Henrik