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diff --git a/vendor/symfony/finder/Expression/Expression.php b/vendor/symfony/finder/Expression/Expression.php
new file mode 100644
index 000000000..41a2cbf3d
--- /dev/null
+++ b/vendor/symfony/finder/Expression/Expression.php
@@ -0,0 +1,148 @@
+<?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\Finder\Expression;
+
+@trigger_error('The '.__NAMESPACE__.'\Expression class is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+/**
+ * @author Jean-François Simon <contact@jfsimon.fr>
+ */
+class Expression implements ValueInterface
+{
+    const TYPE_REGEX = 1;
+    const TYPE_GLOB = 2;
+
+    /**
+     * @var ValueInterface
+     */
+    private $value;
+
+    /**
+     * @param string $expr
+     *
+     * @return self
+     */
+    public static function create($expr)
+    {
+        return new self($expr);
+    }
+
+    /**
+     * @param string $expr
+     */
+    public function __construct($expr)
+    {
+        try {
+            $this->value = Regex::create($expr);
+        } catch (\InvalidArgumentException $e) {
+            $this->value = new Glob($expr);
+        }
+    }
+
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->render();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function render()
+    {
+        return $this->value->render();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function renderPattern()
+    {
+        return $this->value->renderPattern();
+    }
+
+    /**
+     * @return bool
+     */
+    public function isCaseSensitive()
+    {
+        return $this->value->isCaseSensitive();
+    }
+
+    /**
+     * @return int
+     */
+    public function getType()
+    {
+        return $this->value->getType();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prepend($expr)
+    {
+        $this->value->prepend($expr);
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function append($expr)
+    {
+        $this->value->append($expr);
+
+        return $this;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isRegex()
+    {
+        return self::TYPE_REGEX === $this->value->getType();
+    }
+
+    /**
+     * @return bool
+     */
+    public function isGlob()
+    {
+        return self::TYPE_GLOB === $this->value->getType();
+    }
+
+    /**
+     * @return Glob
+     *
+     * @throws \LogicException
+     */
+    public function getGlob()
+    {
+        if (self::TYPE_GLOB !== $this->value->getType()) {
+            throw new \LogicException('Regex can\'t be transformed to glob.');
+        }
+
+        return $this->value;
+    }
+
+    /**
+     * @return Regex
+     */
+    public function getRegex()
+    {
+        return self::TYPE_REGEX === $this->value->getType() ? $this->value : $this->value->toRegex();
+    }
+}