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<?php
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declare(strict_types=1);
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/*
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* This file is part of the league/commonmark package.
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*
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* (c) Colin O'Dell <colinodell@gmail.com>
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*
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* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
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* - (c) John MacFarlane
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace League\CommonMark\Renderer;
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use League\CommonMark\Environment\EnvironmentInterface;
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use League\CommonMark\Event\DocumentPreRenderEvent;
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use League\CommonMark\Event\DocumentRenderedEvent;
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use League\CommonMark\Node\Block\AbstractBlock;
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use League\CommonMark\Node\Block\Document;
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use League\CommonMark\Node\Node;
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use League\CommonMark\Output\RenderedContent;
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use League\CommonMark\Output\RenderedContentInterface;
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final class HtmlRenderer implements DocumentRendererInterface, ChildNodeRendererInterface
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{
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/** @psalm-readonly */
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private EnvironmentInterface $environment;
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public function __construct(EnvironmentInterface $environment)
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{
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$this->environment = $environment;
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}
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public function renderDocument(Document $document): RenderedContentInterface
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{
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$this->environment->dispatch(new DocumentPreRenderEvent($document, 'html'));
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$output = new RenderedContent($document, (string) $this->renderNode($document));
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$event = new DocumentRenderedEvent($output);
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$this->environment->dispatch($event);
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return $event->getOutput();
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}
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/**
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* {@inheritDoc}
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*/
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public function renderNodes(iterable $nodes): string
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{
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$output = '';
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$isFirstItem = true;
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foreach ($nodes as $node) {
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if (! $isFirstItem && $node instanceof AbstractBlock) {
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$output .= $this->getBlockSeparator();
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}
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$output .= $this->renderNode($node);
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$isFirstItem = false;
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}
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return $output;
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}
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/**
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* @return \Stringable|string
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*
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* @throws \RuntimeException
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*/
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private function renderNode(Node $node)
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{
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$renderers = $this->environment->getRenderersForClass(\get_class($node));
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foreach ($renderers as $renderer) {
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\assert($renderer instanceof NodeRendererInterface);
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if (($result = $renderer->render($node, $this)) !== null) {
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return $result;
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}
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}
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throw new \RuntimeException('Unable to find corresponding renderer for node type ' . \get_class($node));
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}
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public function getBlockSeparator(): string
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{
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return $this->environment->getConfiguration()->get('renderer/block_separator');
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}
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public function getInnerSeparator(): string
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{
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return $this->environment->getConfiguration()->get('renderer/inner_separator');
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}
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}
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