I have the answer.  fyi, it is that

doSomething until condition

does not work at all like

begin doSomething end until condition

In the first case, the condition is checked BEFORE the doSomething is 
run.  In the second case, the condition is checked AFTER the doSomething 
is run.  I am not sure just why this is or how I could have figured it 
out intuitively.  It seems to me that it would be better to have 
something like this (to mimic pascal)

doSomething while condition #check condition before

doSomething until condition #check condition after

Thanks for all your input everyone!  I finally got there.  :)
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