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  1. str = "\bNewqaz\b\b\b car!!!\b\b\b."
  2. puts str.gsub(/^[\b]+|([^\b](\g<1>)*[\b])/, '').gsub(/[\b]/,'B')
Success #stdin #stdout 0.05s 9656KB
comments (?)
stdin 
Standard input is empty
stdout 
New car.
https://ideone.com/iWUUKc
language:
Ruby (ruby 2.5.5)
created:
9 years ago
visibility:
secret

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