Question

How to convert lines in a multiline string starting with some "#" to start and end with "_" in Scala

Answer 1

object RegexReplaceExample {
  def main(args: Array[String]): Unit = {
    // Define the input string
    var str = "###Word1 Word2\nWord3\nWord4 Word5 Word6\n##Word7\n#Word8 Word9\n"

    // Define the regex pattern
    val regex = """#+(.*)\n""".r

    // Replace all matches with the desired format
    str = regex.replaceAllIn(str, m => s"_${m.group(1)}_\n")

    println(str)
  }
}

  
     
/*
run:
  
_Word1 Word2_
Word3
Word4 Word5 Word6
_Word7_
_Word8 Word9_

*/

 

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