vendor/symfony/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
changeset 0 7f95f8617b0b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,294 @@
+<?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;
+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>
+ */
+class PhpMatcherDumper extends MatcherDumper
+{
+    /**
+     * 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_merge(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
+            $this->startClass($options['class'], $options['base_class']).
+            $this->addConstructor().
+            $this->addMatcher($supportsRedirections).
+            $this->endClass()
+        ;
+    }
+
+    private function addMatcher($supportsRedirections)
+    {
+        $code = implode("\n", $this->compileRoutes($this->getRoutes(), $supportsRedirections));
+
+        return <<<EOF
+
+    public function match(\$pathinfo)
+    {
+        \$allow = array();
+        \$pathinfo = urldecode(\$pathinfo);
+
+$code
+        throw 0 < count(\$allow) ? new MethodNotAllowedException(array_unique(\$allow)) : new ResourceNotFoundException();
+    }
+
+EOF;
+    }
+
+    private function compileRoutes(RouteCollection $routes, $supportsRedirections, $parentPrefix = null)
+    {
+        $code = array();
+
+        $routes = clone $routes;
+        $routeIterator = $routes->getIterator();
+        $keys = array_keys($routeIterator->getArrayCopy());
+        $keysCount = count($keys);
+
+        $i = 0;
+        foreach ($routeIterator as $name => $route) {
+            $i++;
+
+            $route = clone $route;
+            if ($route instanceof RouteCollection) {
+                $prefix = $route->getPrefix();
+                $optimizable = $prefix && count($route->all()) > 1 && false === strpos($route->getPrefix(), '{');
+                $indent = '';
+                if ($optimizable) {
+                    for ($j = $i; $j < $keysCount; $j++) {
+                        if ($keys[$j] === null) {
+                          continue;
+                        }
+
+                        $testRoute = $routeIterator->offsetGet($keys[$j]);
+                        $isCollection = ($testRoute instanceof RouteCollection);
+
+                        $testPrefix = $isCollection ? $testRoute->getPrefix() : $testRoute->getPattern();
+
+                        if (0 === strpos($testPrefix, $prefix)) {
+                            $routeIterator->offsetUnset($keys[$j]);
+
+                            if ($isCollection) {
+                                $route->addCollection($testRoute);
+                            } else {
+                                $route->add($keys[$j], $testRoute);
+                            }
+
+                            $i++;
+                            $keys[$j] = null;
+                        }
+                    }
+
+                    if ($prefix !== $parentPrefix) {
+                        $code[] = sprintf("        if (0 === strpos(\$pathinfo, %s)) {", var_export($prefix, true));
+                        $indent = '    ';
+                    }
+                }
+
+                foreach ($this->compileRoutes($route, $supportsRedirections, $prefix) as $line) {
+                    foreach (explode("\n", $line) as $l) {
+                        if ($l) {
+                            $code[] = $indent.$l;
+                        } else {
+                            $code[] = $l;
+                        }
+                    }
+                }
+
+                if ($optimizable && $prefix !== $parentPrefix) {
+                    $code[] = "        }\n";
+                }
+            } else {
+                foreach ($this->compileRoute($route, $name, $supportsRedirections, $parentPrefix) as $line) {
+                    $code[] = $line;
+                }
+            }
+        }
+
+        return $code;
+    }
+
+    private function compileRoute(Route $route, $name, $supportsRedirections, $parentPrefix = null)
+    {
+        $code = array();
+        $compiledRoute = $route->compile();
+        $conditions = array();
+        $hasTrailingSlash = false;
+        $matches = false;
+        if (!count($compiledRoute->getVariables()) && false !== preg_match('#^(.)\^(?P<url>.*?)\$\1#', str_replace(array("\n", ' '), '', $compiledRoute->getRegex()), $m)) {
+            if ($supportsRedirections && substr($m['url'], -1) === '/') {
+                $conditions[] = sprintf("rtrim(\$pathinfo, '/') === %s", var_export(rtrim(str_replace('\\', '', $m['url']), '/'), true));
+                $hasTrailingSlash = true;
+            } else {
+                $conditions[] = sprintf("\$pathinfo === %s", 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 = str_replace(array("\n", ' '), '', $compiledRoute->getRegex());
+            if ($supportsRedirections && $pos = strpos($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;
+        }
+
+        $conditions = implode(' && ', $conditions);
+
+        $gotoname = 'not_'.preg_replace('/[^A-Za-z0-9_]/', '', $name);
+
+        $code[] = <<<EOF
+        // $name
+        if ($conditions) {
+EOF;
+
+        if ($req = $route->getRequirement('_method')) {
+            $methods = explode('|', strtoupper($req));
+            // GET and HEAD are equivalent
+            if (in_array('GET', $methods) && !in_array('HEAD', $methods)) {
+                $methods[] = 'HEAD';
+            }
+            if (1 === count($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 $gotoname;
+            }
+EOF;
+            }
+        }
+
+        if ($hasTrailingSlash) {
+            $code[] = sprintf(<<<EOF
+            if (substr(\$pathinfo, -1) !== '/') {
+                return \$this->redirect(\$pathinfo.'/', '%s');
+            }
+EOF
+            , $name);
+        }
+
+        if ($scheme = $route->getRequirement('_scheme')) {
+            if (!$supportsRedirections) {
+                throw new \LogicException('The "_scheme" requirement is only supported for route dumper that implements RedirectableUrlMatcherInterface.');
+            }
+
+            $code[] = sprintf(<<<EOF
+            if (\$this->context->getScheme() !== '$scheme') {
+                return \$this->redirect(\$pathinfo, '%s', '$scheme');
+            }
+EOF
+            , $name);
+        }
+
+        // optimize parameters array
+        if (true === $matches && $compiledRoute->getDefaults()) {
+            $code[] = sprintf("            return array_merge(\$this->mergeDefaults(\$matches, %s), array('_route' => '%s'));"
+                , str_replace("\n", '', var_export($compiledRoute->getDefaults(), true)), $name);
+        } elseif (true === $matches) {
+            $code[] = sprintf("            \$matches['_route'] = '%s';", $name);
+            $code[] = sprintf("            return \$matches;", $name);
+        } elseif ($compiledRoute->getDefaults()) {
+            $code[] = sprintf('            return %s;', str_replace("\n", '', var_export(array_merge($compiledRoute->getDefaults(), array('_route' => $name)), true)));
+        } else {
+            $code[] = sprintf("            return array('_route' => '%s');", $name);
+        }
+        $code[] = "        }";
+
+        if ($req) {
+            $code[] = "        $gotoname:";
+        }
+
+        $code[] = '';
+
+        return $code;
+    }
+
+    private function startClass($class, $baseClass)
+    {
+        return <<<EOF
+<?php
+
+use Symfony\Component\Routing\Exception\MethodNotAllowedException;
+use Symfony\Component\Routing\Exception\ResourceNotFoundException;
+use Symfony\Component\Routing\RequestContext;
+
+/**
+ * $class
+ *
+ * This class has been auto-generated
+ * by the Symfony Routing Component.
+ */
+class $class extends $baseClass
+{
+
+EOF;
+    }
+
+    private function addConstructor()
+    {
+        return <<<EOF
+    /**
+     * Constructor.
+     */
+    public function __construct(RequestContext \$context)
+    {
+        \$this->context = \$context;
+    }
+
+EOF;
+    }
+
+    private function endClass()
+    {
+        return <<<EOF
+}
+
+EOF;
+    }
+}