protected internal virtual void AddRangeUni(TrueTypeFont ttf, IDictionary <int, int[]> longTag, bool includeMetrics
                                             )
 {
     if (!subset && (subsetRanges != null || ttf.GetDirectoryOffset() > 0))
     {
         int[] rg = subsetRanges == null && ttf.GetDirectoryOffset() > 0 ? new int[] { 0, 0xffff } : CompactRanges(
             subsetRanges);
         IDictionary <int, int[]> usemap = ttf.GetActiveCmap();
         System.Diagnostics.Debug.Assert(usemap != null);
         foreach (KeyValuePair <int, int[]> e in usemap)
         {
             int[] v  = e.Value;
             int   gi = v[0];
             if (longTag.ContainsKey(v[0]))
             {
                 continue;
             }
             int  c    = e.Key;
             bool skip = true;
             for (int k = 0; k < rg.Length; k += 2)
             {
                 if (c >= rg[k] && c <= rg[k + 1])
                 {
                     skip = false;
                     break;
                 }
             }
             if (!skip)
             {
                 longTag[gi] = includeMetrics ? new int[] { v[0], v[1], c } : null;
             }
         }
     }
 }