From: Lloyd Linklater <lloyd@2live4.com>
Date: 2007-09-12T19:37:21+09:00
Subject: Re: Is this a bug or a feature?

Here is what I understand based on Pascal.

<waits for the laughing to stop>

There are two main kinds of this loop:

repeat..until

while..do

In the repeat..until (our own version of the until) it does things then 
checks for the break condition.  In the while loop, it checks then does 
things.

In our example here, we have:

i=1
until (i+=1)>5
  p i
end

The question is, when does it evaluate?  When I learned basic algebra, I 
was taught to figure out the things inside the parens first.  I think 
that is what is done here.  Therefore, the first thing done is to 
increment, then evaluate.

To get what you seem to want, you would need to evaluate before you 
increment, which would look more like this:

i = 1
until i>5
  p i
  i+=1
end

You were telling it to increment, THEN evaluate.  That being the case, 
it would not be a bug.  IMHO
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