using System;
using System.Collections.Specialized;

namespace POP3Client
{
  public class Person
  {
    protected mutable name : string;
    protected mutable mail : string;
    

    public this (personString : string)
    {
      if (personString == null) {}
      else
      {
        name = String.Empty;
        mail = String.Empty;
        
        mutable namePositionBegin = 0;
        mutable namePositionEnd   = 0;
        mutable mailPositionBegin = 0;
        mutable mailPositionEnd   = 0;
        
        if (namePositionBegin >= 0 && namePositionEnd > namePositionBegin)
          name = personString.Substring (namePositionBegin + 1, namePositionEnd - namePositionBegin - 1)
        else {};

        if (mailPositionBegin >= 0 && mailPositionEnd > mailPositionBegin)
          mail = personString.Substring (mailPositionBegin + 1, mailPositionEnd - mailPositionBegin - 1)
        else {};

        if (mail.Length == 0 && name.Length == 0) mail = personString
        else {};
      }
    }
    

    public Name : string
    {
      get { name }
    }
    

    public Email : string
    {
      get { mail }
    }
  }
}