Question

How to convert a string to PascalCase using RegEx in Scala

Answer 1

object PascalCase {
  def getPascalCase(input: String): String = {
    var str = input
    if (!input.contains(" ")) {
      str = input.replaceAll("(?<=[a-z])(?=[A-Z])", " ")
    }

    val words = str.toLowerCase().split("[\\s_]+")
    words.map(word => word.capitalize).mkString("")
  }

  def main(args: Array[String]): Unit = {
    println(getPascalCase("get file content"))
    println(getPascalCase("get_file_content"))
    println(getPascalCase("get______file___content"))
    println(getPascalCase("get______file____  content"))
    println(getPascalCase("GET FILE CONTENT"))
    println(getPascalCase("get    file      content"))
    println(getPascalCase("getFileContent"))
  }
}



/*
run:

GetFileContent
GetFileContent
GetFileContent
GetFileContent
GetFileContent
GetFileContent
GetFileContent
 
*/

 

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