Move functions for MarkdownExtension

extra/markdown-extra/MarkdownExtension.php

@@ -21,28 +21,31 @@ final class MarkdownExtension extends AbstractExtension
     {
         return [
             new TwigFilter('markdown_to_html', ['Twig\\Extra\\Markdown\\MarkdownRuntime', 'convert'], ['is_safe' => ['all']]),
-            new TwigFilter('html_to_markdown', 'Twig\\Extra\\Markdown\\twig_html_to_markdown', ['is_safe' => ['all']]),
+            new TwigFilter('html_to_markdown', [self::class, 'htmlToMarkdown'], ['is_safe' => ['all']]),
         ];
     }
-}
 
-function twig_html_to_markdown(string $body, array $options = []): string
-{
-    static $converters;
-
-    if (!class_exists(HtmlConverter::class)) {
-        throw new \LogicException('You cannot use the "html_to_markdown" filter as league/html-to-markdown is not installed; try running "composer require league/html-to-markdown".');
+    /**
+     * @internal
+     */
+    public static function htmlToMarkdown(string $body, array $options = []): string
+    {
+        static $converters;
+    
+        if (!class_exists(HtmlConverter::class)) {
+            throw new \LogicException('You cannot use the "html_to_markdown" filter as league/html-to-markdown is not installed; try running "composer require league/html-to-markdown".');
+        }
+    
+        $options += [
+            'hard_break' => true,
+            'strip_tags' => true,
+            'remove_nodes' => 'head style',
+        ];
+    
+        if (!isset($converters[$key = serialize($options)])) {
+            $converters[$key] = new HtmlConverter($options);
+        }
+    
+        return $converters[$key]->convert($body);
     }
-
-    $options += [
-        'hard_break' => true,
-        'strip_tags' => true,
-        'remove_nodes' => 'head style',
-    ];
-
-    if (!isset($converters[$key = serialize($options)])) {
-        $converters[$key] = new HtmlConverter($options);
-    }
-
-    return $converters[$key]->convert($body);
 }

extra/markdown-extra/Resources/functions.php

@@ -0,0 +1,23 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Twig\Extra\Markdown;
+
+/**
+ * @internal
+ * @deprecated since Twig 3.9.0
+ */
+function html_to_markdown(string $body, array $options = []): string
+{
+    trigger_deprecation('twig/intl-extra', '3.9.0', 'Using the internal "%s" function is deprecated.', __FUNCTION__);
+
+    return MarkdownExtension::htmlToMarkdown($body, $options);
+}

extra/markdown-extra/Tests/LegacyFunctionsTest.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Twig\Extra\Markdown\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Twig\Extra\Markdown\MarkdownExtension;
+use function Twig\Extra\Markdown\html_to_markdown;
+
+/**
+ * @group legacy
+ */
+class LegacyFunctionsTest extends TestCase
+{
+    public function testHtmlToMarkdown()
+    {
+        $this->assertSame(MarkdownExtension::htmlToMarkdown('<p>foo</p>'), html_to_markdown('<p>foo</p>'));
+    }
+}

extra/markdown-extra/composer.json

@@ -16,6 +16,7 @@
     ],
     "require": {
         "php": ">=7.2.5",
+        "symfony/deprecation-contracts": "^2.5|^3",
         "twig/twig": "^3.0"
     },
     "require-dev": {
@@ -26,6 +27,7 @@
         "michelf/php-markdown": "^1.8|^2.0"
     },
     "autoload": {
+        "files": [ "Resources/functions.php" ],
         "psr-4" : { "Twig\\Extra\\Markdown\\" : "" },
         "exclude-from-classmap": [
             "/Tests/"