Have a look at Enumerator#each_slice and Enumerator#each_cons
Thanks, each_cons should be the right one for me.
But where could I find this information on my own? Only with using your
information for a web search I was able to find a little information
Also rubyforge does not help.
There has to be an easy entry point for such information that I did not
find yet. Is there any hint where I could start searching?