Does C# have built-in support for parsing page-number strings?

Question

Does C# have built-in support for parsing strings of page numbers? By page numbers, I mean the format you might enter into a print dialog that\'s a mixture of comma and das

Answer 1

My solution:

• return list of integers
• reversed/typo/duplicate possible: 1,-3,5-,7-10,12-9 => 1,3,5,7,8,9,10,12,11,10,9 (used when you want to extract, repeat pages)
• option to set total of pages: 1,-3,5-,7-10,12-9 (Nmax=9) => 1,3,5,7,8,9,9

• autocomplete: 1,-3,5-,8 (Nmax=9) => 1,3,5,6,7,8,9,8

      public static List pageRangeToList(string pageRg, int Nmax = 0)
  {
      List ls = new List();
      int lb,ub,i;
      foreach (string ss in pageRg.Split(','))
      {
          if(int.TryParse(ss,out lb)){
              ls.Add(Math.Abs(lb));
          } else {
              var subls = ss.Split('-').ToList();
              lb = (int.TryParse(subls[0],out i)) ? i : 0;
              ub = (int.TryParse(subls[1],out i)) ? i : Nmax;
              ub = ub > 0 ? ub : lb; // if ub=0, take 1 value of lb
              for(i=0;i<=Math.Abs(ub-lb);i++) 
                  ls.Add(lb 0 ? Nmax : ls.Max(); // real Nmax
      return ls.Where(s => s>0 && s<=Nmax).ToList();
  }