public char LineLastChar(Base.SciLexerBase scilexer, int line)
 {
     string linetext = "";
     scilexer.GetLine(line, out linetext);
     for (int i = linetext.Length - 1; i >= 0; i--)
     {
         if (linetext[i] == '\t' || linetext[i] == ' '
             || linetext[i] == '\r' || linetext[i] == '\n')
         {
         }
         else
         {
             return linetext[i];
         }
     }
     return ' ';
 }