WIP: Language level migration.

Author: Martin Brecht-Precht

composer.json

@@ -24,6 +24,7 @@
 	},
 	"require": {
 		"php": "^7.1",
+		"ext-ctype": "*",
 		"ext-dom": "*",
 		"ext-json": "*",
 		"ext-mbstring": "*",

src/Dispatcher/CommonmarkDispatcher.php

@@ -40,7 +40,7 @@ public function __construct(string $commonmarkString)
 	/**
 	 * @return HtmlProcessorInterface
 	 */
-	public function getHtmlProcessor():HtmlProcessorInterface
+	public function getHtmlProcessor(): HtmlProcessorInterface
 	{
 		return $this->htmlProcessor;
 	}
@@ -58,7 +58,7 @@ public function setHtmlProcessor(HtmlProcessorInterface $htmlProcessor)
 	/**
 	 * @return bool
 	 */
-	public function isReusable():bool
+	public function isReusable(): bool
 	{
 		return true;
 	}

src/Dispatcher/CommonmarkUtil/DocumentProcessor.php

@@ -63,7 +63,7 @@ final class DocumentProcessor implements DocumentProcessorInterface
 	 */
 	public function __construct(
 		HandlerInterface $markdomHandler,
-		HtmlProcessorInterface $htmlProcessor = null
+		?HtmlProcessorInterface $htmlProcessor = null
 	) {
 		$this->markdomHandler = $markdomHandler;
 		if (is_null($htmlProcessor)) {

src/Dispatcher/PhpObjectDispatcher.php

@@ -67,7 +67,7 @@ public function dispatchTo(HandlerInterface $markdomHandler)
 	/**
 	 * @return bool
 	 */
-	public function isReusable():bool
+	public function isReusable(): bool
 	{
 		return true;
 	}