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msd2/phpBB3/vendor/symfony/routing/Matcher/Dumper/DumperPrefixCollection.php

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+<?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\Routing\Matcher\Dumper;
+
+/**
+ * Prefix tree of routes preserving routes order.
+ *
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ *
+ * @internal
+ */
+class DumperPrefixCollection extends DumperCollection
+{
+    /**
+     * @var string
+     */
+    private $prefix = '';
+
+    /**
+     * Returns the prefix.
+     *
+     * @return string The prefix
+     */
+    public function getPrefix()
+    {
+        return $this->prefix;
+    }
+
+    /**
+     * Sets the prefix.
+     *
+     * @param string $prefix The prefix
+     */
+    public function setPrefix($prefix)
+    {
+        $this->prefix = $prefix;
+    }
+
+    /**
+     * Adds a route in the tree.
+     *
+     * @return self
+     *
+     * @throws \LogicException
+     */
+    public function addPrefixRoute(DumperRoute $route)
+    {
+        $prefix = $route->getRoute()->compile()->getStaticPrefix();
+
+        for ($collection = $this; null !== $collection; $collection = $collection->getParent()) {
+            // Same prefix, add to current leave
+            if ($collection->prefix === $prefix) {
+                $collection->add($route);
+
+                return $collection;
+            }
+
+            // Prefix starts with route's prefix
+            if ('' === $collection->prefix || 0 === strpos($prefix, $collection->prefix)) {
+                $child = new self();
+                $child->setPrefix(substr($prefix, 0, \strlen($collection->prefix) + 1));
+                $collection->add($child);
+
+                return $child->addPrefixRoute($route);
+            }
+        }
+
+        // Reached only if the root has a non empty prefix
+        throw new \LogicException('The collection root must not have a prefix');
+    }
+
+    /**
+     * Merges nodes whose prefix ends with a slash.
+     *
+     * Children of a node whose prefix ends with a slash are moved to the parent node
+     */
+    public function mergeSlashNodes()
+    {
+        $children = array();
+
+        foreach ($this as $child) {
+            if ($child instanceof self) {
+                $child->mergeSlashNodes();
+                if ('/' === substr($child->prefix, -1)) {
+                    $children = array_merge($children, $child->all());
+                } else {
+                    $children[] = $child;
+                }
+            } else {
+                $children[] = $child;
+            }
+        }
+
+        $this->setAll($children);
+    }
+}