if (c == '\'' && index + 2 < max && pat.charAt(index + 2) == '\'')
if (quoted)
  private static int scanString(String pat, int index, StringBuffer buffer)  {    int max = pat.length();    buffer.setLength(0);    for (; index < max; ++index)      {	char c = pat.charAt(index);	if (c == '\'' && index + 2 < max && pat.charAt(index + 2) == '\'')	  {	    buffer.append(pat.charAt(index + 1));	    index += 2;	  }	else if (c == '\'' && index + 1 < max		 && pat.charAt(index + 1) == '\'')	  {	    buffer.append(c);	    ++index;	  }	else if (c == '{')	  break;	else if (c == '}')	  throw new IllegalArgumentException("Found '}' without '{'");	else	  buffer.append(c);      }    return index;  }