Upgrade framework

vendor/league/commonmark/src/Xml/XmlRenderer.php

@@ -0,0 +1,134 @@
+<?php
+
+declare(strict_types=1);
+
+namespace League\CommonMark\Xml;
+
+use League\CommonMark\Environment\EnvironmentInterface;
+use League\CommonMark\Event\DocumentPreRenderEvent;
+use League\CommonMark\Node\Block\Document;
+use League\CommonMark\Node\Node;
+use League\CommonMark\Node\StringContainerInterface;
+use League\CommonMark\Output\RenderedContent;
+use League\CommonMark\Output\RenderedContentInterface;
+use League\CommonMark\Renderer\DocumentRendererInterface;
+use League\CommonMark\Util\Xml;
+
+final class XmlRenderer implements DocumentRendererInterface
+{
+    private const INDENTATION = '    ';
+
+    private EnvironmentInterface $environment;
+
+    private XmlNodeRendererInterface $fallbackRenderer;
+
+    /** @var array<class-string, XmlNodeRendererInterface> */
+    private array $rendererCache = [];
+
+    public function __construct(EnvironmentInterface $environment)
+    {
+        $this->environment      = $environment;
+        $this->fallbackRenderer = new FallbackNodeXmlRenderer();
+    }
+
+    public function renderDocument(Document $document): RenderedContentInterface
+    {
+        $this->environment->dispatch(new DocumentPreRenderEvent($document, 'xml'));
+
+        $xml = '<?xml version="1.0" encoding="UTF-8"?>';
+
+        $indent = 0;
+        $walker = $document->walker();
+        while ($event = $walker->next()) {
+            $node = $event->getNode();
+
+            $closeImmediately = ! $node->hasChildren();
+            $selfClosing      = $closeImmediately && ! $node instanceof StringContainerInterface;
+
+            $renderer = $this->findXmlRenderer($node);
+            $tagName  = $renderer->getXmlTagName($node);
+
+            if ($event->isEntering()) {
+                $attrs = $renderer->getXmlAttributes($node);
+
+                $xml .= "\n" . \str_repeat(self::INDENTATION, $indent);
+                $xml .= self::tag($tagName, $attrs, $selfClosing);
+
+                if ($node instanceof StringContainerInterface) {
+                    $xml .= Xml::escape($node->getLiteral());
+                }
+
+                if ($closeImmediately && ! $selfClosing) {
+                    $xml .= self::tag('/' . $tagName);
+                }
+
+                if (! $closeImmediately) {
+                    $indent++;
+                }
+            } elseif (! $closeImmediately) {
+                $indent--;
+                $xml .= "\n" . \str_repeat(self::INDENTATION, $indent);
+                $xml .= self::tag('/' . $tagName);
+            }
+        }
+
+        return new RenderedContent($document, $xml . "\n");
+    }
+
+    /**
+     * @param array<string, string|int|float|bool> $attrs
+     */
+    private static function tag(string $name, array $attrs = [], bool $selfClosing = \false): string
+    {
+        $result = '<' . $name;
+        foreach ($attrs as $key => $value) {
+            $result .= \sprintf(' %s="%s"', $key, self::convertAndEscape($value));
+        }
+
+        if ($selfClosing) {
+            $result .= ' /';
+        }
+
+        $result .= '>';
+
+        return $result;
+    }
+
+    /**
+     * @param string|int|float|bool $value
+     */
+    private static function convertAndEscape($value): string
+    {
+        if (\is_string($value)) {
+            return Xml::escape($value);
+        }
+
+        if (\is_int($value) || \is_float($value)) {
+            return (string) $value;
+        }
+
+        if (\is_bool($value)) {
+            return $value ? 'true' : 'false';
+        }
+
+        // @phpstan-ignore-next-line
+        throw new \InvalidArgumentException('$value must be a string, int, float, or bool');
+    }
+
+    private function findXmlRenderer(Node $node): XmlNodeRendererInterface
+    {
+        $class = \get_class($node);
+
+        if (\array_key_exists($class, $this->rendererCache)) {
+            return $this->rendererCache[$class];
+        }
+
+        foreach ($this->environment->getRenderersForClass($class) as $renderer) {
+            if ($renderer instanceof XmlNodeRendererInterface) {
+                return $this->rendererCache[$class] = $renderer;
+            }
+        }
+
+        return $this->rendererCache[$class] = $this->fallbackRenderer;
+    }
+}