fork(4) download 
  1. puts "a-b-c-d".scan(/(?=(\w-\w))/).flatten.inspect
Success #stdin #stdout 0.02s 9720KB
comments (?)
stdin 
Standard input is empty
stdout 
["a-b", "b-c", "c-d"]
https://ideone.com/vedrYG
language:
Ruby (ruby 2.5.5)
created:
7 years ago
visibility:
secret

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