n of end of token. 
   nchar      O   Number of characters in token. 
 </PRE>
<h4><a name="Detailed_Input">Detailed_Input</a></h4>
<PRE>
 
   string         is a character string that may contain a &quot;string 
                  token&quot; starting at the character position 
                  indicated by the input argument first (see below). 
                  String tokens are sequences of characters that 
                  represent literal strings.  Syntactically, a string 
                  token is 