NonEmptyString

NonEmptyString.scala

package nonemptystring

import macrame.delegate
import scala.collection.immutable.StringOps

final case class NonEmptyString(val head : Char, val tail : String) {
   @delegate
   override def toString : String = head + tail
}

object NonEmptyString {
   def fromString(s : String) : NonEmptyString =
      if (s.isEmpty)
         Some(NonEmptyString(s.charAt(0), s.substring(1)))
      else
         None
         
   implicit def toStringOps(nes : NonEmptyString) : StringOps = new StringOps(nes.toString)
}