repeat....until

[RossG]

I want to use a repeat with a condition but sometimes
the condition might not be met before the limit of the
repeat loop is reached.

Is there a graceful way to exit the loop before a crash?

[dunbarx]

Hi.

Do you mean something like:

Code: Select all

on mouseUp
   put 10 into temp
   put 11 into foo
   repeat until foo = temp
      if the optionkey is down then exit to top --I put this in to get out of the loop
      add 1 to foo
      wait 1 -so it does not time out right away
   end repeat
end mouseUp 

So the manual escape is what I use when testing dangerous handlers, like this one. But is that what you meant? Usually, the right way is not to get into this sort of mess in the first place. What are you thinking of, exactly?

Craig Newman

[RossG]

What I want to do is:

repeat with x = 1 to 30 until (aVar - bVar) = 6 or until (bVar - aVar) = 6
if item x of theString is among the items of "1,2,3,4....." then
add 1 to aVar
else
add 1 to bVar
end if
end repeat (without hitting the wall!)


The difference might never be 6.

[SparkOut]

So what criteria do you want to use to end the loop? Like Craig says, use a manual escape and/or avoid an infinite loop by choosing appropriate structures/conditions.

By the way, checking whether abs(aVar - bVar) is 6 will avoid the need to check two conditions.

[sritcp]

Is this what you are looking for?

Code: Select all

repeat with x = 1 to 30  
if (aVar - bVar) = 6 or until (bVar - aVar) = 6 then # EDIT: delete "until" (see post below)
  exit repeat
else
  if item x of theString is among the items of "1,2,3,4....." then
    add 1 to aVar
  else
    add 1 to bVar
  end if
end if
end repeat

Regards,
Sri

[dunbarx]

Sri.

Gotta lose the "until" in line 2. You do not need it, and surely do not want it. Typo?

Craig

[Dixie]

line 2 won't run anyway... Oops, sorry just noticed Craig has already picked up on that..

[sritcp]

Thanks Craig:

I just cut and pasted OP's code.
Forgot to get rid of "until" (I have edited the post to mark it)

Thanks,
Sri

[RossG]

Thank you all for your help.

Looks like it will work but on other things
at the moment.

This must be one of the most helpful forums (fora ?)
on the internet. Never ceases to amaze and please
me that a solution is never more than a couple of
hours away (even when old-age-type insomnia strikes).

Once again thank you.