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  1. TOKENS = [":", ".", "'", "]"]
  2. sep_rx = TOKENS.join().gsub(/[\]\[\^\\-]/, '\\\\\\&')
  3. puts sep_rx
  4. rx = /\b0\d[#{sep_rx}]\d\d[^#{sep_rx}]/
  5. puts rx.source
  6. puts "01:39\t" =~  rx
Success #stdin #stdout 0s 28216KB
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Standard input is empty
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:.'\]
\b0\d[:.'\]]\d\d[^:.'\]]
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https://ideone.com/p7aBsd
language:
Ruby (ruby 2.5.5)
created:
7 years ago
visibility:
secret

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