[Routing] Allow inline definition of requirements and defaults for host

Author: julienfalque

CHANGELOG.md

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+5.2.0
+-----
+
+ * Added support for inline definition of requirements and defaults for host
+
 5.1.0
 -----
 

Route.php

@@ -130,18 +130,7 @@ public function getPath()
      */
     public function setPath(string $pattern)
     {
-        if (false !== strpbrk($pattern, '?<')) {
-            $pattern = preg_replace_callback('#\{(\w++)(<.*?>)?(\?[^\}]*+)?\}#', function ($m) {
-                if (isset($m[3][0])) {
-                    $this->setDefault($m[1], '?' !== $m[3] ? substr($m[3], 1) : null);
-                }
-                if (isset($m[2][0])) {
-                    $this->setRequirement($m[1], substr($m[2], 1, -1));
-                }
-
-                return '{'.$m[1].'}';
-            }, $pattern);
-        }
+        $pattern = $this->extractInlineDefaultsAndRequirements($pattern);
 
         // A pattern must start with a slash and must not have multiple slashes at the beginning because the
         // generated path for this route would be confused with a network path, e.g. '//domain.com/path'.
@@ -170,7 +159,7 @@ public function getHost()
      */
     public function setHost(?string $pattern)
     {
-        $this->host = (string) $pattern;
+        $this->host = $this->extractInlineDefaultsAndRequirements((string) $pattern);
         $this->compiled = null;
 
         return $this;
@@ -544,6 +533,24 @@ public function compile()
         return $this->compiled = $class::compile($this);
     }
 
+    private function extractInlineDefaultsAndRequirements(string $pattern): string
+    {
+        if (false === strpbrk($pattern, '?<')) {
+            return $pattern;
+        }
+
+        return preg_replace_callback('#\{(\w++)(<.*?>)?(\?[^\}]*+)?\}#', function ($m) {
+            if (isset($m[3][0])) {
+                $this->setDefault($m[1], '?' !== $m[3] ? substr($m[3], 1) : null);
+            }
+            if (isset($m[2][0])) {
+                $this->setRequirement($m[1], substr($m[2], 1, -1));
+            }
+
+            return '{'.$m[1].'}';
+        }, $pattern);
+    }
+
     private function sanitizeRequirement(string $key, string $regex)
     {
         if ('' !== $regex && '^' === $regex[0]) {

Tests/RouteTest.php

@@ -216,6 +216,19 @@ public function testInlineDefaultAndRequirement()
 
         $this->assertEquals((new Route('/foo/{bar}'))->setDefault('bar', null)->setRequirement('bar', '.*'), new Route('/foo/{bar<.*>?}'));
         $this->assertEquals((new Route('/foo/{bar}'))->setDefault('bar', '<>')->setRequirement('bar', '>'), new Route('/foo/{bar<>>?<>}'));
+
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setDefault('bar', null), (new Route('/'))->setHost('{bar?}'));
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setDefault('bar', 'baz'), (new Route('/'))->setHost('{bar?baz}'));
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setDefault('bar', 'baz<buz>'), (new Route('/'))->setHost('{bar?baz<buz>}'));
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setDefault('bar', null), (new Route('/', ['bar' => 'baz']))->setHost('{bar?}'));
+
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setRequirement('bar', '.*'), (new Route('/'))->setHost('{bar<.*>}'));
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setRequirement('bar', '>'), (new Route('/'))->setHost('{bar<>>}'));
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setRequirement('bar', '.*'), (new Route('/', [], ['bar' => '\d+']))->setHost('{bar<.*>}'));
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setRequirement('bar', '[a-z]{2}'), (new Route('/'))->setHost('{bar<[a-z]{2}>}'));
+
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setDefault('bar', null)->setRequirement('bar', '.*'), (new Route('/'))->setHost('{bar<.*>?}'));
+        $this->assertEquals((new Route('/'))->setHost('{bar}')->setDefault('bar', '<>')->setRequirement('bar', '>'), (new Route('/'))->setHost('{bar<>>?<>}'));
     }
 
     /**