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<div><h1>top level loop</h1>
<div>The top level evaluation loop of the interpreter contains hooks so the user can control how printing of the results of evaluation is done. If the result is <a href="_null.html" title="the unique member of the empty class">null</a> then nothing is printed. Otherwise, the appropriate method associated with the symbol <a href="___Print.html" title="top level method for printing results">Print</a> is applied to perform the printing, unless the printing is to be suppressed, as indicated by a semicolon at the end of the statement, in which case the <a href="___No__Print.html" title="top level method for non-printing results">NoPrint</a> method is applied.<ul><li><span><a href="___After__Eval.html" title="top level method applied after evaluation">AfterEval</a> -- top level method applied after evaluation</span></li>
<li><span><a href="___After__Print.html" title="top level method applied after printing">AfterPrint</a> -- top level method applied after printing</span></li>
<li><span><a href="___After__No__Print.html" title="top level method applied after not printing">AfterNoPrint</a> -- top level method applied after not printing</span></li>
<li><span><a href="___No__Print.html" title="top level method for non-printing results">NoPrint</a> -- top level method for non-printing results</span></li>
<li><span><a href="___Print.html" title="top level method for printing results">Print</a> -- top level method for printing results</span></li>
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