From: Robert Klemme Date: 2006-02-22T21:53:31+09:00 Subject: Re: hierarchic data structure henon wrote: >> There is the usual idiom of nested hashes: > > sure there's no problem implementing it ... I guess it has been > implemented a thousand times by a thousand different people. i am > asking if anyone knows a library because it might feature iterators, > clever error handling code, etc. and it might be tested better than > yet annother quicky-hacky-implementation. > > are there any libraries or prominent applications known? > thanks for response, The basic idiom is so simple (two lines, see my last posting) that it doesn't make any sense to package that into a lib. I don't know whether your requirements are met by anthing done already. Did you check the RAA? That's usually a good starting point. http://raa.ruby-lang.org/ Kind regards robert