Fan.Sys.Uri.Decoder.toQueryStr C# (CSharp) Méthode

            private string toQueryStr(string q, int start, int end, bool escaped)
            {
                if (!escaped) return q.Substring(start, end-start);
                StringBuilder s = new StringBuilder(end-start);
                int prev = 0;
                for (int i=start; i<end; ++i)
                {
                  int c = q[i];
                  if (c != '\\')
                  {
                s.Append((char)c);
                prev = c;
                  }
                  else
                  {
                if (prev == '\\') { s.Append((char)c); prev = 0; }
                else prev = c;
                  }
                }
                return s.ToString();
            }