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diff --git a/vendor/psy/psysh/src/Psy/Formatter/DocblockFormatter.php b/vendor/psy/psysh/src/Psy/Formatter/DocblockFormatter.php
new file mode 100644
index 000000000..c1e8af9c1
--- /dev/null
+++ b/vendor/psy/psysh/src/Psy/Formatter/DocblockFormatter.php
@@ -0,0 +1,168 @@
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Formatter;
+
+use Psy\Util\Docblock;
+use Symfony\Component\Console\Formatter\OutputFormatter;
+
+/**
+ * A pretty-printer for docblocks.
+ */
+class DocblockFormatter implements Formatter
+{
+    private static $vectorParamTemplates = array(
+        'type' => 'info',
+        'var'  => 'strong',
+    );
+
+    /**
+     * Format a docblock.
+     *
+     * @param \Reflector $reflector
+     *
+     * @return string Formatted docblock
+     */
+    public static function format(\Reflector $reflector)
+    {
+        $docblock = new Docblock($reflector);
+        $chunks   = array();
+
+        if (!empty($docblock->desc)) {
+            $chunks[] = '<comment>Description:</comment>';
+            $chunks[] = self::indent(OutputFormatter::escape($docblock->desc), '  ');
+            $chunks[] = '';
+        }
+
+        if (!empty($docblock->tags)) {
+            foreach ($docblock::$vectors as $name => $vector) {
+                if (isset($docblock->tags[$name])) {
+                    $chunks[] = sprintf('<comment>%s:</comment>', self::inflect($name));
+                    $chunks[] = self::formatVector($vector, $docblock->tags[$name]);
+                    $chunks[] = '';
+                }
+            }
+
+            $tags = self::formatTags(array_keys($docblock::$vectors), $docblock->tags);
+            if (!empty($tags)) {
+                $chunks[] = $tags;
+                $chunks[] = '';
+            }
+        }
+
+        return rtrim(implode("\n", $chunks));
+    }
+
+    /**
+     * Format a docblock vector, for example, `@throws`, `@param`, or `@return`.
+     *
+     * @see DocBlock::$vectors
+     *
+     * @param array $vector
+     * @param array $lines
+     *
+     * @return string
+     */
+    private static function formatVector(array $vector, array $lines)
+    {
+        $template = array(' ');
+        foreach ($vector as $type) {
+            $max = 0;
+            foreach ($lines as $line) {
+                $chunk = $line[$type];
+                $cur = empty($chunk) ? 0 : strlen($chunk) + 1;
+                if ($cur > $max) {
+                    $max = $cur;
+                }
+            }
+
+            $template[] = self::getVectorParamTemplate($type, $max);
+        }
+        $template = implode(' ', $template);
+
+        return implode("\n", array_map(function ($line) use ($template) {
+            $escaped = array_map(array('Symfony\Component\Console\Formatter\OutputFormatter', 'escape'), $line);
+
+            return rtrim(vsprintf($template, $escaped));
+        }, $lines));
+    }
+
+    /**
+     * Format docblock tags.
+     *
+     * @param array $skip Tags to exclude
+     * @param array $tags Tags to format
+     *
+     * @return string formatted tags
+     */
+    private static function formatTags(array $skip, array $tags)
+    {
+        $chunks = array();
+
+        foreach ($tags as $name => $values) {
+            if (in_array($name, $skip)) {
+                continue;
+            }
+
+            foreach ($values as $value) {
+                $chunks[] = sprintf('<comment>%s%s</comment> %s', self::inflect($name), empty($value) ? '' : ':', OutputFormatter::escape($value));
+            }
+
+            $chunks[] = '';
+        }
+
+        return implode("\n", $chunks);
+    }
+
+    /**
+     * Get a docblock vector template.
+     *
+     * @param string $type Vector type
+     * @param int    $max  Pad width
+     *
+     * @return string
+     */
+    private static function getVectorParamTemplate($type, $max)
+    {
+        if (!isset(self::$vectorParamTemplates[$type])) {
+            return sprintf('%%-%ds', $max);
+        }
+
+        return sprintf('<%s>%%-%ds</%s>', self::$vectorParamTemplates[$type], $max, self::$vectorParamTemplates[$type]);
+    }
+
+    /**
+     * Indent a string.
+     *
+     * @param string $text   String to indent
+     * @param string $indent (default: '  ')
+     *
+     * @return string
+     */
+    private static function indent($text, $indent = '  ')
+    {
+        return $indent . str_replace("\n", "\n" . $indent, $text);
+    }
+
+    /**
+     * Convert underscored or whitespace separated words into sentence case.
+     *
+     * @param string $text
+     *
+     * @return string
+     */
+    private static function inflect($text)
+    {
+        $words = trim(preg_replace('/[\s_-]+/', ' ', preg_replace('/([a-z])([A-Z])/', '$1 $2', $text)));
+
+        return implode(' ', array_map('ucfirst', explode(' ', $words)));
+    }
+}