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msd2/phpBB3/vendor/symfony/routing/Matcher/Dumper/ApacheMatcherDumper.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;
+
+@trigger_error('The '.__NAMESPACE__.'\ApacheMatcherDumper class is deprecated since Symfony 2.5 and will be removed in 3.0. It\'s hard to replicate the behaviour of the PHP implementation and the performance gains are minimal.', E_USER_DEPRECATED);
+
+use Symfony\Component\Routing\Route;
+
+/**
+ * Dumps a set of Apache mod_rewrite rules.
+ *
+ * @deprecated since version 2.5, to be removed in 3.0.
+ *             The performance gains are minimal and it's very hard to replicate
+ *             the behavior of PHP implementation.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Kris Wallsmith <kris@symfony.com>
+ */
+class ApacheMatcherDumper extends MatcherDumper
+{
+    /**
+     * Dumps a set of Apache mod_rewrite rules.
+     *
+     * Available options:
+     *
+     *  * script_name: The script name (app.php by default)
+     *  * base_uri:    The base URI ("" by default)
+     *
+     * @return string A string to be used as Apache rewrite rules
+     *
+     * @throws \LogicException When the route regex is invalid
+     */
+    public function dump(array $options = array())
+    {
+        $options = array_merge(array(
+            'script_name' => 'app.php',
+            'base_uri' => '',
+        ), $options);
+
+        $options['script_name'] = self::escape($options['script_name'], ' ', '\\');
+
+        $rules = array("# skip \"real\" requests\nRewriteCond %{REQUEST_FILENAME} -f\nRewriteRule .* - [QSA,L]");
+        $methodVars = array();
+        $hostRegexUnique = 0;
+        $prevHostRegex = '';
+
+        foreach ($this->getRoutes()->all() as $name => $route) {
+            if ($route->getCondition()) {
+                throw new \LogicException(sprintf('Unable to dump the routes for Apache as route "%s" has a condition.', $name));
+            }
+
+            $compiledRoute = $route->compile();
+            $hostRegex = $compiledRoute->getHostRegex();
+
+            if (null !== $hostRegex && $prevHostRegex !== $hostRegex) {
+                $prevHostRegex = $hostRegex;
+                ++$hostRegexUnique;
+
+                $rule = array();
+
+                $regex = $this->regexToApacheRegex($hostRegex);
+                $regex = self::escape($regex, ' ', '\\');
+
+                $rule[] = sprintf('RewriteCond %%{HTTP:Host} %s', $regex);
+
+                $variables = array();
+                $variables[] = sprintf('E=__ROUTING_host_%s:1', $hostRegexUnique);
+
+                foreach ($compiledRoute->getHostVariables() as $i => $variable) {
+                    $variables[] = sprintf('E=__ROUTING_host_%s_%s:%%%d', $hostRegexUnique, $variable, $i + 1);
+                }
+
+                $variables = implode(',', $variables);
+
+                $rule[] = sprintf('RewriteRule .? - [%s]', $variables);
+
+                $rules[] = implode("\n", $rule);
+            }
+
+            $rules[] = $this->dumpRoute($name, $route, $options, $hostRegexUnique);
+
+            $methodVars = array_merge($methodVars, $route->getMethods());
+        }
+        if (0 < \count($methodVars)) {
+            $rule = array('# 405 Method Not Allowed');
+            $methodVars = array_values(array_unique($methodVars));
+            if (\in_array('GET', $methodVars) && !\in_array('HEAD', $methodVars)) {
+                $methodVars[] = 'HEAD';
+            }
+            foreach ($methodVars as $i => $methodVar) {
+                $rule[] = sprintf('RewriteCond %%{ENV:_ROUTING__allow_%s} =1%s', $methodVar, isset($methodVars[$i + 1]) ? ' [OR]' : '');
+            }
+            $rule[] = sprintf('RewriteRule .* %s [QSA,L]', $options['script_name']);
+
+            $rules[] = implode("\n", $rule);
+        }
+
+        return implode("\n\n", $rules)."\n";
+    }
+
+    /**
+     * Dumps a single route.
+     *
+     * @param string $name            Route name
+     * @param Route  $route           The route
+     * @param array  $options         Options
+     * @param bool   $hostRegexUnique Unique identifier for the host regex
+     *
+     * @return string The compiled route
+     */
+    private function dumpRoute($name, $route, array $options, $hostRegexUnique)
+    {
+        $compiledRoute = $route->compile();
+
+        // prepare the apache regex
+        $regex = $this->regexToApacheRegex($compiledRoute->getRegex());
+        $regex = '^'.self::escape(preg_quote($options['base_uri']).substr($regex, 1), ' ', '\\');
+
+        $methods = $this->getRouteMethods($route);
+
+        $hasTrailingSlash = (!$methods || \in_array('HEAD', $methods)) && '/$' === substr($regex, -2) && '^/$' !== $regex;
+
+        $variables = array('E=_ROUTING_route:'.$name);
+        foreach ($compiledRoute->getHostVariables() as $variable) {
+            $variables[] = sprintf('E=_ROUTING_param_%s:%%{ENV:__ROUTING_host_%s_%s}', $variable, $hostRegexUnique, $variable);
+        }
+        foreach ($compiledRoute->getPathVariables() as $i => $variable) {
+            $variables[] = 'E=_ROUTING_param_'.$variable.':%'.($i + 1);
+        }
+        foreach ($this->normalizeValues($route->getDefaults()) as $key => $value) {
+            $variables[] = 'E=_ROUTING_default_'.$key.':'.strtr($value, array(
+                ':' => '\\:',
+                '=' => '\\=',
+                '\\' => '\\\\',
+                ' ' => '\\ ',
+            ));
+        }
+        $variables = implode(',', $variables);
+
+        $rule = array("# $name");
+
+        // method mismatch
+        if (0 < \count($methods)) {
+            $allow = array();
+            foreach ($methods as $method) {
+                $allow[] = 'E=_ROUTING_allow_'.$method.':1';
+            }
+
+            if ($compiledRoute->getHostRegex()) {
+                $rule[] = sprintf('RewriteCond %%{ENV:__ROUTING_host_%s} =1', $hostRegexUnique);
+            }
+
+            $rule[] = "RewriteCond %{REQUEST_URI} $regex";
+            $rule[] = sprintf('RewriteCond %%{REQUEST_METHOD} !^(%s)$ [NC]', implode('|', $methods));
+            $rule[] = sprintf('RewriteRule .* - [S=%d,%s]', $hasTrailingSlash ? 2 : 1, implode(',', $allow));
+        }
+
+        // redirect with trailing slash appended
+        if ($hasTrailingSlash) {
+            if ($compiledRoute->getHostRegex()) {
+                $rule[] = sprintf('RewriteCond %%{ENV:__ROUTING_host_%s} =1', $hostRegexUnique);
+            }
+
+            $rule[] = 'RewriteCond %{REQUEST_URI} '.substr($regex, 0, -2).'$';
+            $rule[] = 'RewriteRule .* $0/ [QSA,L,R=301]';
+        }
+
+        // the main rule
+
+        if ($compiledRoute->getHostRegex()) {
+            $rule[] = sprintf('RewriteCond %%{ENV:__ROUTING_host_%s} =1', $hostRegexUnique);
+        }
+
+        $rule[] = "RewriteCond %{REQUEST_URI} $regex";
+        $rule[] = "RewriteRule .* {$options['script_name']} [QSA,L,$variables]";
+
+        return implode("\n", $rule);
+    }
+
+    /**
+     * Returns methods allowed for a route.
+     *
+     * @return array The methods
+     */
+    private function getRouteMethods(Route $route)
+    {
+        $methods = $route->getMethods();
+
+        // GET and HEAD are equivalent
+        if (\in_array('GET', $methods) && !\in_array('HEAD', $methods)) {
+            $methods[] = 'HEAD';
+        }
+
+        return $methods;
+    }
+
+    /**
+     * Converts a regex to make it suitable for mod_rewrite.
+     *
+     * @param string $regex The regex
+     *
+     * @return string The converted regex
+     */
+    private function regexToApacheRegex($regex)
+    {
+        $regexPatternEnd = strrpos($regex, $regex[0]);
+
+        return preg_replace('/\?P<.+?>/', '', substr($regex, 1, $regexPatternEnd - 1));
+    }
+
+    /**
+     * Escapes a string.
+     *
+     * @param string $string The string to be escaped
+     * @param string $char   The character to be escaped
+     * @param string $with   The character to be used for escaping
+     *
+     * @return string The escaped string
+     */
+    private static function escape($string, $char, $with)
+    {
+        $escaped = false;
+        $output = '';
+        foreach (str_split($string) as $symbol) {
+            if ($escaped) {
+                $output .= $symbol;
+                $escaped = false;
+                continue;
+            }
+            if ($symbol === $char) {
+                $output .= $with.$char;
+                continue;
+            }
+            if ($symbol === $with) {
+                $escaped = true;
+            }
+            $output .= $symbol;
+        }
+
+        return $output;
+    }
+
+    /**
+     * Normalizes an array of values.
+     *
+     * @return string[]
+     */
+    private function normalizeValues(array $values)
+    {
+        $normalizedValues = array();
+        foreach ($values as $key => $value) {
+            if (\is_array($value)) {
+                foreach ($value as $index => $bit) {
+                    $normalizedValues[sprintf('%s[%s]', $key, $index)] = $bit;
+                }
+            } else {
+                $normalizedValues[$key] = (string) $value;
+            }
+        }
+
+        return $normalizedValues;
+    }
+}

msd2/phpBB3/vendor/symfony/routing/Matcher/Dumper/DumperCollection.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;
+
+/**
+ * Collection of routes.
+ *
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ *
+ * @internal
+ */
+class DumperCollection implements \IteratorAggregate
+{
+    /**
+     * @var DumperCollection|null
+     */
+    private $parent;
+
+    /**
+     * @var DumperCollection[]|DumperRoute[]
+     */
+    private $children = array();
+
+    /**
+     * @var array
+     */
+    private $attributes = array();
+
+    /**
+     * Returns the children routes and collections.
+     *
+     * @return self[]|DumperRoute[]
+     */
+    public function all()
+    {
+        return $this->children;
+    }
+
+    /**
+     * Adds a route or collection.
+     *
+     * @param DumperRoute|DumperCollection The route or collection
+     */
+    public function add($child)
+    {
+        if ($child instanceof self) {
+            $child->setParent($this);
+        }
+        $this->children[] = $child;
+    }
+
+    /**
+     * Sets children.
+     *
+     * @param array $children The children
+     */
+    public function setAll(array $children)
+    {
+        foreach ($children as $child) {
+            if ($child instanceof self) {
+                $child->setParent($this);
+            }
+        }
+        $this->children = $children;
+    }
+
+    /**
+     * Returns an iterator over the children.
+     *
+     * @return \Iterator|DumperCollection[]|DumperRoute[] The iterator
+     */
+    public function getIterator()
+    {
+        return new \ArrayIterator($this->children);
+    }
+
+    /**
+     * Returns the root of the collection.
+     *
+     * @return self The root collection
+     */
+    public function getRoot()
+    {
+        return (null !== $this->parent) ? $this->parent->getRoot() : $this;
+    }
+
+    /**
+     * Returns the parent collection.
+     *
+     * @return self|null The parent collection or null if the collection has no parent
+     */
+    protected function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Sets the parent collection.
+     */
+    protected function setParent(DumperCollection $parent)
+    {
+        $this->parent = $parent;
+    }
+
+    /**
+     * Returns true if the attribute is defined.
+     *
+     * @param string $name The attribute name
+     *
+     * @return bool true if the attribute is defined, false otherwise
+     */
+    public function hasAttribute($name)
+    {
+        return array_key_exists($name, $this->attributes);
+    }
+
+    /**
+     * Returns an attribute by name.
+     *
+     * @param string $name    The attribute name
+     * @param mixed  $default Default value is the attribute doesn't exist
+     *
+     * @return mixed The attribute value
+     */
+    public function getAttribute($name, $default = null)
+    {
+        return $this->hasAttribute($name) ? $this->attributes[$name] : $default;
+    }
+
+    /**
+     * Sets an attribute by name.
+     *
+     * @param string $name  The attribute name
+     * @param mixed  $value The attribute value
+     */
+    public function setAttribute($name, $value)
+    {
+        $this->attributes[$name] = $value;
+    }
+
+    /**
+     * Sets multiple attributes.
+     *
+     * @param array $attributes The attributes
+     */
+    public function setAttributes($attributes)
+    {
+        $this->attributes = $attributes;
+    }
+}

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);
+    }
+}

msd2/phpBB3/vendor/symfony/routing/Matcher/Dumper/DumperRoute.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;
+
+use Symfony\Component\Routing\Route;
+
+/**
+ * Container for a Route.
+ *
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ *
+ * @internal
+ */
+class DumperRoute
+{
+    private $name;
+    private $route;
+
+    /**
+     * @param string $name  The route name
+     * @param Route  $route The route
+     */
+    public function __construct($name, Route $route)
+    {
+        $this->name = $name;
+        $this->route = $route;
+    }
+
+    /**
+     * Returns the route name.
+     *
+     * @return string The route name
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Returns the route.
+     *
+     * @return Route The route
+     */
+    public function getRoute()
+    {
+        return $this->route;
+    }
+}

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

@@ -0,0 +1,37 @@
+<?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;
+
+use Symfony\Component\Routing\RouteCollection;
+
+/**
+ * MatcherDumper is the abstract class for all built-in matcher dumpers.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class MatcherDumper implements MatcherDumperInterface
+{
+    private $routes;
+
+    public function __construct(RouteCollection $routes)
+    {
+        $this->routes = $routes;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getRoutes()
+    {
+        return $this->routes;
+    }
+}

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

@@ -0,0 +1,39 @@
+<?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;
+
+use Symfony\Component\Routing\RouteCollection;
+
+/**
+ * MatcherDumperInterface is the interface that all matcher dumper classes must implement.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface MatcherDumperInterface
+{
+    /**
+     * Dumps a set of routes to a string representation of executable code
+     * that can then be used to match a request against these routes.
+     *
+     * @param array $options An array of options
+     *
+     * @return string Executable code
+     */
+    public function dump(array $options = array());
+
+    /**
+     * Gets the routes to dump.
+     *
+     * @return RouteCollection A RouteCollection instance
+     */
+    public function getRoutes();
+}

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

@@ -0,0 +1,432 @@
+<?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;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
+use Symfony\Component\Routing\Route;
+use Symfony\Component\Routing\RouteCollection;
+
+/**
+ * PhpMatcherDumper creates a PHP class able to match URLs for a given set of routes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Tobias Schultze <http://tobion.de>
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ */
+class PhpMatcherDumper extends MatcherDumper
+{
+    private $expressionLanguage;
+
+    /**
+     * @var ExpressionFunctionProviderInterface[]
+     */
+    private $expressionLanguageProviders = array();
+
+    /**
+     * Dumps a set of routes to a PHP class.
+     *
+     * Available options:
+     *
+     *  * class:      The class name
+     *  * base_class: The base class name
+     *
+     * @param array $options An array of options
+     *
+     * @return string A PHP class representing the matcher class
+     */
+    public function dump(array $options = array())
+    {
+        $options = array_replace(array(
+            'class' => 'ProjectUrlMatcher',
+            'base_class' => 'Symfony\\Component\\Routing\\Matcher\\UrlMatcher',
+        ), $options);
+
+        // trailing slash support is only enabled if we know how to redirect the user
+        $interfaces = class_implements($options['base_class']);
+        $supportsRedirections = isset($interfaces['Symfony\\Component\\Routing\\Matcher\\RedirectableUrlMatcherInterface']);
+
+        return <<<EOF
+<?php
+
+use Symfony\Component\Routing\Exception\MethodNotAllowedException;
+use Symfony\Component\Routing\Exception\ResourceNotFoundException;
+use Symfony\Component\Routing\RequestContext;
+
+/**
+ * This class has been auto-generated
+ * by the Symfony Routing Component.
+ */
+class {$options['class']} extends {$options['base_class']}
+{
+    public function __construct(RequestContext \$context)
+    {
+        \$this->context = \$context;
+    }
+
+{$this->generateMatchMethod($supportsRedirections)}
+}
+
+EOF;
+    }
+
+    public function addExpressionLanguageProvider(ExpressionFunctionProviderInterface $provider)
+    {
+        $this->expressionLanguageProviders[] = $provider;
+    }
+
+    /**
+     * Generates the code for the match method implementing UrlMatcherInterface.
+     *
+     * @param bool $supportsRedirections Whether redirections are supported by the base class
+     *
+     * @return string Match method as PHP code
+     */
+    private function generateMatchMethod($supportsRedirections)
+    {
+        $code = rtrim($this->compileRoutes($this->getRoutes(), $supportsRedirections), "\n");
+
+        return <<<EOF
+    public function match(\$rawPathinfo)
+    {
+        \$allow = array();
+        \$pathinfo = rawurldecode(\$rawPathinfo);
+        \$context = \$this->context;
+        \$request = \$this->request ?: \$this->createRequest(\$pathinfo);
+
+$code
+
+        throw 0 < count(\$allow) ? new MethodNotAllowedException(array_unique(\$allow)) : new ResourceNotFoundException();
+    }
+EOF;
+    }
+
+    /**
+     * Generates PHP code to match a RouteCollection with all its routes.
+     *
+     * @param RouteCollection $routes               A RouteCollection instance
+     * @param bool            $supportsRedirections Whether redirections are supported by the base class
+     *
+     * @return string PHP code
+     */
+    private function compileRoutes(RouteCollection $routes, $supportsRedirections)
+    {
+        $fetchedHost = false;
+
+        $groups = $this->groupRoutesByHostRegex($routes);
+        $code = '';
+
+        foreach ($groups as $collection) {
+            if (null !== $regex = $collection->getAttribute('host_regex')) {
+                if (!$fetchedHost) {
+                    $code .= "        \$host = \$this->context->getHost();\n\n";
+                    $fetchedHost = true;
+                }
+
+                $code .= sprintf("        if (preg_match(%s, \$host, \$hostMatches)) {\n", var_export($regex, true));
+            }
+
+            $tree = $this->buildPrefixTree($collection);
+            $groupCode = $this->compilePrefixRoutes($tree, $supportsRedirections);
+
+            if (null !== $regex) {
+                // apply extra indention at each line (except empty ones)
+                $groupCode = preg_replace('/^.{2,}$/m', '    $0', $groupCode);
+                $code .= $groupCode;
+                $code .= "        }\n\n";
+            } else {
+                $code .= $groupCode;
+            }
+        }
+
+        return $code;
+    }
+
+    /**
+     * Generates PHP code recursively to match a tree of routes.
+     *
+     * @param DumperPrefixCollection $collection           A DumperPrefixCollection instance
+     * @param bool                   $supportsRedirections Whether redirections are supported by the base class
+     * @param string                 $parentPrefix         Prefix of the parent collection
+     *
+     * @return string PHP code
+     */
+    private function compilePrefixRoutes(DumperPrefixCollection $collection, $supportsRedirections, $parentPrefix = '')
+    {
+        $code = '';
+        $prefix = $collection->getPrefix();
+        $optimizable = 1 < \strlen($prefix) && 1 < \count($collection->all());
+        $optimizedPrefix = $parentPrefix;
+
+        if ($optimizable) {
+            $optimizedPrefix = $prefix;
+
+            $code .= sprintf("    if (0 === strpos(\$pathinfo, %s)) {\n", var_export($prefix, true));
+        }
+
+        foreach ($collection as $route) {
+            if ($route instanceof DumperCollection) {
+                $code .= $this->compilePrefixRoutes($route, $supportsRedirections, $optimizedPrefix);
+            } else {
+                $code .= $this->compileRoute($route->getRoute(), $route->getName(), $supportsRedirections, $optimizedPrefix)."\n";
+            }
+        }
+
+        if ($optimizable) {
+            $code .= "    }\n\n";
+            // apply extra indention at each line (except empty ones)
+            $code = preg_replace('/^.{2,}$/m', '    $0', $code);
+        }
+
+        return $code;
+    }
+
+    /**
+     * Compiles a single Route to PHP code used to match it against the path info.
+     *
+     * @param Route       $route                A Route instance
+     * @param string      $name                 The name of the Route
+     * @param bool        $supportsRedirections Whether redirections are supported by the base class
+     * @param string|null $parentPrefix         The prefix of the parent collection used to optimize the code
+     *
+     * @return string PHP code
+     *
+     * @throws \LogicException
+     */
+    private function compileRoute(Route $route, $name, $supportsRedirections, $parentPrefix = null)
+    {
+        $code = '';
+        $compiledRoute = $route->compile();
+        $conditions = array();
+        $hasTrailingSlash = false;
+        $matches = false;
+        $hostMatches = false;
+        $methods = $route->getMethods();
+
+        // GET and HEAD are equivalent
+        if (\in_array('GET', $methods) && !\in_array('HEAD', $methods)) {
+            $methods[] = 'HEAD';
+        }
+
+        $supportsTrailingSlash = $supportsRedirections && (!$methods || \in_array('GET', $methods));
+
+        if (!\count($compiledRoute->getPathVariables()) && false !== preg_match('#^(.)\^(?P<url>.*?)\$\1#', $compiledRoute->getRegex(), $m)) {
+            if ($supportsTrailingSlash && '/' === substr($m['url'], -1)) {
+                $conditions[] = sprintf("%s === rtrim(\$pathinfo, '/')", var_export(rtrim(str_replace('\\', '', $m['url']), '/'), true));
+                $hasTrailingSlash = true;
+            } else {
+                $conditions[] = sprintf('%s === $pathinfo', var_export(str_replace('\\', '', $m['url']), true));
+            }
+        } else {
+            if ($compiledRoute->getStaticPrefix() && $compiledRoute->getStaticPrefix() !== $parentPrefix) {
+                $conditions[] = sprintf('0 === strpos($pathinfo, %s)', var_export($compiledRoute->getStaticPrefix(), true));
+            }
+
+            $regex = $compiledRoute->getRegex();
+            if ($supportsTrailingSlash && $pos = strpos($regex, '/$')) {
+                $regex = substr($regex, 0, $pos).'/?$'.substr($regex, $pos + 2);
+                $hasTrailingSlash = true;
+            }
+            $conditions[] = sprintf('preg_match(%s, $pathinfo, $matches)', var_export($regex, true));
+
+            $matches = true;
+        }
+
+        if ($compiledRoute->getHostVariables()) {
+            $hostMatches = true;
+        }
+
+        if ($route->getCondition()) {
+            $conditions[] = $this->getExpressionLanguage()->compile($route->getCondition(), array('context', 'request'));
+        }
+
+        $conditions = implode(' && ', $conditions);
+
+        $code .= <<<EOF
+        // $name
+        if ($conditions) {
+
+EOF;
+
+        $gotoname = 'not_'.preg_replace('/[^A-Za-z0-9_]/', '', $name);
+
+        if ($hasTrailingSlash) {
+            $code .= <<<EOF
+            if ('/' === substr(\$pathinfo, -1)) {
+                // no-op
+            } elseif (!in_array(\$this->context->getMethod(), array('HEAD', 'GET'))) {
+                goto $gotoname;
+            } else {
+                return \$this->redirect(\$rawPathinfo.'/', '$name');
+            }
+
+
+EOF;
+        }
+
+        if ($schemes = $route->getSchemes()) {
+            if (!$supportsRedirections) {
+                throw new \LogicException('The "schemes" requirement is only supported for URL matchers that implement RedirectableUrlMatcherInterface.');
+            }
+            $schemes = str_replace("\n", '', var_export(array_flip($schemes), true));
+            if ($methods) {
+                $methods = implode("', '", $methods);
+                $code .= <<<EOF
+            \$requiredSchemes = $schemes;
+            \$hasRequiredScheme = isset(\$requiredSchemes[\$this->context->getScheme()]);
+            if (!in_array(\$this->context->getMethod(), array('$methods'))) {
+                if (\$hasRequiredScheme) {
+                    \$allow = array_merge(\$allow, array('$methods'));
+                }
+                goto $gotoname;
+            }
+            if (!\$hasRequiredScheme) {
+                if (!in_array(\$this->context->getMethod(), array('HEAD', 'GET'))) {
+                    goto $gotoname;
+                }
+
+                return \$this->redirect(\$rawPathinfo, '$name', key(\$requiredSchemes));
+            }
+
+
+EOF;
+            } else {
+                $code .= <<<EOF
+            \$requiredSchemes = $schemes;
+            if (!isset(\$requiredSchemes[\$this->context->getScheme()])) {
+                if (!in_array(\$this->context->getMethod(), array('HEAD', 'GET'))) {
+                    goto $gotoname;
+                }
+
+                return \$this->redirect(\$rawPathinfo, '$name', key(\$requiredSchemes));
+            }
+
+
+EOF;
+            }
+        } elseif ($methods) {
+            if (1 === \count($methods)) {
+                $code .= <<<EOF
+            if (\$this->context->getMethod() != '$methods[0]') {
+                \$allow[] = '$methods[0]';
+                goto $gotoname;
+            }
+
+
+EOF;
+            } else {
+                $methods = implode("', '", $methods);
+                $code .= <<<EOF
+            if (!in_array(\$this->context->getMethod(), array('$methods'))) {
+                \$allow = array_merge(\$allow, array('$methods'));
+                goto $gotoname;
+            }
+
+
+EOF;
+            }
+        }
+
+        // optimize parameters array
+        if ($matches || $hostMatches) {
+            $vars = array();
+            if ($hostMatches) {
+                $vars[] = '$hostMatches';
+            }
+            if ($matches) {
+                $vars[] = '$matches';
+            }
+            $vars[] = "array('_route' => '$name')";
+
+            $code .= sprintf(
+                "            return \$this->mergeDefaults(array_replace(%s), %s);\n",
+                implode(', ', $vars),
+                str_replace("\n", '', var_export($route->getDefaults(), true))
+            );
+        } elseif ($route->getDefaults()) {
+            $code .= sprintf("            return %s;\n", str_replace("\n", '', var_export(array_replace($route->getDefaults(), array('_route' => $name)), true)));
+        } else {
+            $code .= sprintf("            return array('_route' => '%s');\n", $name);
+        }
+        $code .= "        }\n";
+
+        if ($hasTrailingSlash || $schemes || $methods) {
+            $code .= "        $gotoname:\n";
+        }
+
+        return $code;
+    }
+
+    /**
+     * Groups consecutive routes having the same host regex.
+     *
+     * The result is a collection of collections of routes having the same host regex.
+     *
+     * @param RouteCollection $routes A flat RouteCollection
+     *
+     * @return DumperCollection A collection with routes grouped by host regex in sub-collections
+     */
+    private function groupRoutesByHostRegex(RouteCollection $routes)
+    {
+        $groups = new DumperCollection();
+
+        $currentGroup = new DumperCollection();
+        $currentGroup->setAttribute('host_regex', null);
+        $groups->add($currentGroup);
+
+        foreach ($routes as $name => $route) {
+            $hostRegex = $route->compile()->getHostRegex();
+            if ($currentGroup->getAttribute('host_regex') !== $hostRegex) {
+                $currentGroup = new DumperCollection();
+                $currentGroup->setAttribute('host_regex', $hostRegex);
+                $groups->add($currentGroup);
+            }
+            $currentGroup->add(new DumperRoute($name, $route));
+        }
+
+        return $groups;
+    }
+
+    /**
+     * Organizes the routes into a prefix tree.
+     *
+     * Routes order is preserved such that traversing the tree will traverse the
+     * routes in the origin order.
+     *
+     * @return DumperPrefixCollection
+     */
+    private function buildPrefixTree(DumperCollection $collection)
+    {
+        $tree = new DumperPrefixCollection();
+        $current = $tree;
+
+        foreach ($collection as $route) {
+            $current = $current->addPrefixRoute($route);
+        }
+
+        $tree->mergeSlashNodes();
+
+        return $tree;
+    }
+
+    private function getExpressionLanguage()
+    {
+        if (null === $this->expressionLanguage) {
+            if (!class_exists('Symfony\Component\ExpressionLanguage\ExpressionLanguage')) {
+                throw new \RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
+            }
+            $this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders);
+        }
+
+        return $this->expressionLanguage;
+    }
+}