99 Bottles of Beer

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Language IDL

(An example using IDL's array mapping)

Date:	04/08/08
Author:	Rüdiger Kupper
URL:	http://ruedigerkupper.de
Comments:	0
Info:	http://en.wikipedia.org/wiki/IDL_(programming_language)
Score:	(2.00 in 1 votes)

Pro beer
   
   ;; Demonstrate IDL's array mapping on the 99-bottles-of-beer lyrics.
   ;; usage:
   ;;   IDL> .compile beer.pro
   ;;   IDL> beer

   numbeer = 99-indgen(99)
   beers   = [strtrim(string(numbeer), 2), "No"]
   bottles = [replicate(" bottles", 98), " bottle", " bottles"]
   doaction= [replicate("Take one down and pass it around, ", 99), "Go to the store and buy some
more, "]
   
   newline = string(10b)+string(13b) 

   print, beers + bottles + " of beer on the wall, " +                                $
          strlowcase(beers) + bottles +" of beer." +                                  $
          newline +                                                                   $
          doaction +                                                                  $
          strlowcase(shift(beers,-1)) + shift(bottles,-1) + " of beer on the wall." + $
          newline
 
   ;; Note the most elegent use of the
   ;; beer-consuming, auto-buying shift function.

End

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Version	Author	Date	Comments	Rate
1	Eric Korpela	04/20/05	1

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