From: gwtmp01@...
Date: 2006-08-16T06:50:53+09:00
Subject: Re: goto function?


On Aug 15, 2006, at 5:28 PM, Logan Capaldo wrote:
> I wouldn't recommend making this a habit but:
>
> % cat cc.rb
> x = 0
> bar = callcc {|cc| cc}
> puts "Hello"
> x += 1
> bar.call(bar) unless x == 3
> puts "x is #{x}"

Yikes, someone asks questions which indicate that they
are a novice programmer and you throw continuations at them?

Isn't that like throwing someone in the deep end of the pool and
seeing if they can swim? Or maybe it is like holding them under
water and seeing if they have gills? :-)

Fasby wrote:
> I don't really understand..
>
> I want the script to start over again.. for example..
> When the user made an input and pressed return I want the script to
> "restart" or jump to the beginning..

You can use 'next' to begin the next iteration of a loop:

loop {
   # your code here
   if startover?
      next		# will cause loop to start over
   end
   # more stuff here
   if quit?
     break		# to get out of the loop entirely
   end
   # more stuff here
}


Gary Wright