<!-- jQuery -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- Bootstrap JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<div class="container">
<h1>Result</h1>
<pre>
<?php
include 'autoloader.php';
$expressionString = filter_input(INPUT_POST, 'expression', FILTER_SANITIZE_SPECIAL_CHARS);
if ($expressionString) {
echo "<br>Processando a expressão: '{$expressionString}'<br>";
try {
$calc = new ExpressionTree($expressionString);
echo "<br>Análise prefix: '{$calc->showPreFix()}'";
echo "<br>Análise postfix: '{$calc->showPostFix()}'";
echo "<br>Análise infix: '{$calc->showInFix()}'";
echo "<br><br>Resultado: '{$calc->evaluate()}'";
} catch (Exception $e) {
echo "<br>{$e->getMessage()}";
}
} else {
echo "Expressão inválida";
}
?>
</pre>
<br>
<button class="btn btn-primary" onclick="voltar()">Voltar</button>
</div>
<script>
