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1940 :: Ruby to Nim?

• Stefan_Salewski (orginal) [2016-01-13T01:41:00+01:00] view original

  I still wonder what is the best way to convert these two constructs to Nim:

  5.times do puts 'x' end
  x
  x
  x
  x
  x
  
  (0..21).step(3) do |i| puts i end
  0
  3
  6
  9
  12
  15
  18
  21

  Problem is, that from my current understanding iterators in Nim are coupled to for statement and a counting variable, so that a plain times iterator seems not doable. And, I still do not know how to pass more parameters to iterators to have a step size for example.

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• jlp765 (orginal) [2016-01-13T01:46:21+01:00] view original

  
  for i in 1..5: echo "x"
  Run

  
  for i in countUp(0,21,3): echo i
  Run

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• def (orginal) [2016-01-13T02:10:01+01:00] view original

  Generally I would recomment to just write for i in 1..5: echo 'x', but if you really want that syntax:

  template times(x: expr, y: stmt): stmt =
    for i in 1..x:
      y
  
  5.times:
    echo 'x'
  Run

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• Stefan_Salewski (orginal) [2016-01-13T15:17:20+01:00] view original

  Great, thanks. I forgot about countUp iterator unfortunately -- will look at its source code to learn how to create iterators with multiple parameters. For the times iterator -- well some Ruby programmer like it very much, and it is fine that there is a solution for that in Nim also.

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