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1 point by akkartik 3763 days ago | link | parent

As an example, consider all the ways you can traverse an s-expr:

  arc> (each x '(1 2 (3 4)) prn.x)
  1
  2
  (3 4)

  arc> (each x (tree '(1 2 (3 4))) prn.x)
  (1 2 (3 4))
  1
  (2 (3 4))
  2
  ((3 4))
  (3 4)
  3
  (4)
  4
  nil
  nil

  arc> (each x (leaves '(1 2 (3 4))) prn.x)
  1
  2
  3
  4
  nil
  nil

  arc> (each x (code '(1 2 (3 4))) prn.x)
  (1 2 (3 4))
  1
  2
  (3 4)
  3
  4
The last addresses fallintothis's bug with ifs-with-do: http://arclanguage.org/item?id=18247. See https://github.com/arclanguage/anarki/commit/74ba10b700.