n <I>true</I> if parsing
has revealed no syntactic or semantic errors up to the time when the call is
made.</P>

<P>The remaining methods return a string that represent a lexeme for one of
the tokens scanned.  <I>LexString()</I> and <I>LexName()</I> return identical
strings unless the scanner has been built with the IGNORE CASE option
selected; in this case <I>LexName</I> returns the string converted to upper
case.</P>


<H3>3.2 The Token interface</H3>

<P>A token obtained from the scanner has the followin