Question

How to check if a string contains only letters, numbers, underscores and dashes in Scala

Answer 1

import scala.util.matching.Regex

object RegexValidation {
  def isValidString(s: String): Boolean = {
    val pattern: Regex = "^[A-Za-z0-9_-]*$".r
    
    pattern.matches(s)
  }

  def main(args: Array[String]): Unit = {
    val s1 = "-abc_123-"
    println(if (isValidString(s1)) "yes" else "no")

    val s2 = "-abc_123-(!)"
    println(if (isValidString(s2)) "yes" else "no")
  }
}


 
/*
run:

yes
no

*/

 

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