hranker is a fun little command-line utility I have written to help a user rank a list of items (of any type implementing Show, Eq and Ord). I hope the code is sufficiently clear that it could also serve as an educational piece of code, especially for people wanting to learn how to use the HCL library. It is now available on hackage: http://hackage.haskell.org/cgi-bin/hackage-scripts/package/hranker Just typing hranker or hranker --help will yield a usage message. Here is an example usage of the program: In the unlikely event that anyone else wants to use it to help them prepare their votes in the Haskell logo poll (which is what I used it for just now), here is what to do: 1. cabal install hranker (or download it and runhaskell Setup.lhs etc.) 2. hranker 113 (because 113 is the number of items in the poll) 3. IMPORTANT: Read the warnings the program prints on startup! 4. To control the program, enter the first character of the command you wish to perform, and then press Enter. The command you have chosen may ask you for further information. Commands generally operate on the next unranked item, apart from annotate (which can operate on ranked or unranked items), remove (which always operates on ranked items), and quit. I recommend you use the annotate command a lot - it is really helpful for this kind of situation where you have a lot of numbered items to rank. If you use the remove command, don't remove *all* ranked items, because if you do you it may terminate. 5. If you rank *everything* somehow (remember, ties are allowed), the program will print an inverse mapping (items to ranks, instead of ranks to items) before terminating. If you choose to quit before that point, you won't get that inverse mapping, unless you explicitly invoke the mapping command. There is obvious room for improvement: apart from fixing the remove bug mentioned above, there is currently no simple way to remove or annotate just *one* item at a rank when multiple items are tied at that rank. Have fun! There are some hilarious entries in the logo poll, if you haven't yet voted. -- Robin