g the single character 
 
      &quot; 
 </PRE>
<h4><a name="Examples">Examples</a></h4>
<PRE>
 
   1)  The table below illustrates the action of this routine. 
 
 
       STRING CONTENTS               qchar   first   last   nchar 
       ========================================================== 
       The &quot;SPICE&quot; system            &quot;       4       10      7 
       The &quot;SPICE&quot; system            &quot;       0       -1      0 
       The &quot;SPICE&quot; system            '       