FEAT: make textroles case insentive

fixes: 1195

Author: jaapio

packages/guides-restructured-text/src/RestructuredText/TextRoles/DefaultTextRoleFactory.php

@@ -14,6 +14,7 @@
 namespace phpDocumentor\Guides\RestructuredText\TextRoles;
 
 use function in_array;
+use function strtolower;
 
 final class DefaultTextRoleFactory implements TextRoleFactory
 {
@@ -53,16 +54,17 @@ public function replaceTextRole(TextRole $newTextRole): void
 
     public function getTextRole(string $name, string|null $domain = null): TextRole
     {
-        if ($name === 'default') {
+        $normalizedName = strtolower($name);
+        if ($normalizedName === 'default') {
             return $this->defaultTextRole;
         }
 
         if ($domain === null) {
-            return $this->findTextRole($this->textRoles, $name);
+            return $this->findTextRole($this->textRoles, $normalizedName);
         }
 
         if (isset($this->domains[$domain])) {
-            return $this->findTextRole($this->domains[$domain], $name);
+            return $this->findTextRole($this->domains[$domain], $normalizedName);
         }
 
         return $this->genericTextRole;

packages/guides-restructured-text/tests/unit/TextRoles/DefaultTextRoleFactoryTest.php

@@ -26,7 +26,7 @@ public function setUp(): void
     {
         $this->logger = new Logger('test');
         $this->defaultTextRoleFactory = new DefaultTextRoleFactory(
-            new GenericTextRole(self::createMock(SettingsManager::class)),
+            new GenericTextRole($this->createMock(SettingsManager::class)),
             new LiteralTextRole(),
             [],
             [],
@@ -45,4 +45,11 @@ public function testRegisteredTextRoleIsReturned(): void
         $textRole = $this->defaultTextRoleFactory->getTextRole('abbreviation');
         self::assertInstanceOf(AbbreviationTextRole::class, $textRole);
     }
+
+    public function testRegisteredTextRoleIsCaseInSensitive(): void
+    {
+        $this->defaultTextRoleFactory->registerTextRole(new AbbreviationTextRole($this->logger));
+        $textRole = $this->defaultTextRoleFactory->getTextRole('ABbreviation');
+        self::assertInstanceOf(AbbreviationTextRole::class, $textRole);
+    }
 }