diff -r 000000000000 -r 7f95f8617b0b vendor/symfony/src/Symfony/Component/Form/Guess/Guess.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/Form/Guess/Guess.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,104 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Form\Guess;
+
+/**
+ * Base class for guesses made by TypeGuesserInterface implementation
+ *
+ * Each instance contains a confidence value about the correctness of the guess.
+ * Thus an instance with confidence HIGH_CONFIDENCE is more likely to be
+ * correct than an instance with confidence LOW_CONFIDENCE.
+ *
+ * @author Bernhard Schussek <bernhard.schussek@symfony.com>
+ */
+abstract class Guess
+{
+    /**
+     * Marks an instance with a value that is very likely to be correct
+     * @var integer
+     */
+    const HIGH_CONFIDENCE = 2;
+
+    /**
+     * Marks an instance with a value that is likely to be correct
+     * @var integer
+     */
+    const MEDIUM_CONFIDENCE = 1;
+
+    /**
+     * Marks an instance with a value that may be correct
+     * @var integer
+     */
+    const LOW_CONFIDENCE = 0;
+
+    /**
+     * The list of allowed confidence values
+     * @var array
+     */
+    private static $confidences = array(
+        self::HIGH_CONFIDENCE,
+        self::MEDIUM_CONFIDENCE,
+        self::LOW_CONFIDENCE,
+    );
+
+    /**
+     * The confidence about the correctness of the value
+     *
+     * One of HIGH_CONFIDENCE, MEDIUM_CONFIDENCE and LOW_CONFIDENCE.
+     *
+     * @var integer
+     */
+    private $confidence;
+
+    /**
+     * Returns the guess most likely to be correct from a list of guesses
+     *
+     * If there are multiple guesses with the same, highest confidence, the
+     * returned guess is any of them.
+     *
+     * @param  array $guesses     A list of guesses
+     * @return Guess  The guess with the highest confidence
+     */
+    static public function getBestGuess(array $guesses)
+    {
+        usort($guesses, function ($a, $b) {
+            return $b->getConfidence() - $a->getConfidence();
+        });
+
+        return count($guesses) > 0 ? $guesses[0] : null;
+    }
+
+    /**
+     * Constructor
+     *
+     * @param integer $confidence   The confidence
+     */
+    public function __construct($confidence)
+    {
+        if (!in_array($confidence, self::$confidences)) {
+            throw new \UnexpectedValueException(sprintf('The confidence should be one of "%s"', implode('", "', self::$confidences)));
+        }
+
+        $this->confidence = $confidence;
+    }
+
+    /**
+     * Returns the confidence that the guessed value is correct
+     *
+     * @return integer  One of the constants HIGH_CONFIDENCE, MEDIUM_CONFIDENCE
+     *                  and LOW_CONFIDENCE
+     */
+    public function getConfidence()
+    {
+        return $this->confidence;
+    }
+}