nner to translate the string into tokens.</P>
<P>
The scanner does not keep track of tokens after it processes them. For this reason, it will not notice if, for example, parentheses are not balanced. It returns errors only if it is passed a string which does not scan as a sequence of tokens.</P>

<H4 CLASS="HeadingC">
Scanner Tokens</H4>
<P>
The scanner recognizes the tokens listed below. Note that applications will never directly encounter the scanner tokens; the tokens translates them into parser tokens b