(buffer.getBuffered());
</pre>

<a name="errors"></a>
<h3>6. Error Recovery</h3>
<a name="error_sym"></a>
<h4>6.1 The error symbol</h4>
A final important aspect of building parsers with CUP is 
support for syntactic error recovery.  CUP uses the same 
error recovery mechanisms as YACC.  In particular, it supports
a special error symbol (denoted simply as <tt>error</tt>).
This symbol plays the role of a special non-terminal which, instead of
being defined by productions, instead matches an erroneous input 
s