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  1. object Main extends App {
  2. 	val text = "abaca dedfd ghgig"
  3. 	val p = """(?=(([a-z])(?!\2)[a-z]\2))""".r
  4.     val allMatches = p.findAllMatchIn(text).map(_.group(1))
  5.     println(allMatches.mkString(", "))
  6.  
  7. }
Success #stdin #stdout 0.18s 322496KB
comments (?)
stdin 
Standard input is empty
stdout 
aba, aca, ded, dfd, ghg, gig
https://ideone.com/0jOMl3
language:
Scala (scala 2.12.8)
created:
8 years ago
visibility:
secret

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