42 lines
1.4 KiB
TypeScript
42 lines
1.4 KiB
TypeScript
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import { marked } from 'marked';
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import DOMPurify from 'dompurify';
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import hljs from 'highlight.js/lib/core';
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import javascript from 'highlight.js/lib/languages/javascript';
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import bash from 'highlight.js/lib/languages/bash';
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import typescript from 'highlight.js/lib/languages/typescript';
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import json from 'highlight.js/lib/languages/json';
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hljs.registerLanguage('javascript', javascript);
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hljs.registerLanguage('js', javascript);
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hljs.registerLanguage('typescript', typescript);
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hljs.registerLanguage('ts', typescript);
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hljs.registerLanguage('bash', bash);
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hljs.registerLanguage('sh', bash);
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hljs.registerLanguage('json', json);
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marked.use({
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breaks: true,
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gfm: true,
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renderer: {
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code({ text, lang }) {
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const language = lang && hljs.getLanguage(lang) ? lang : undefined;
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const highlighted = language
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? hljs.highlight(text, { language }).value
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: hljs.highlightAuto(text).value;
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const cls = language ? ` language-${language}` : '';
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return `<pre><code class="hljs${cls}">${highlighted}</code></pre>`;
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},
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},
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});
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/**
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* Rendert einen Markdown-String zu sanitized HTML.
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* Einziger Export des Moduls — so bleibt Austausch der Engine lokal.
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*/
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export function renderMarkdown(md: string): string {
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const raw = marked.parse(md, { async: false }) as string;
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return DOMPurify.sanitize(raw, {
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ADD_ATTR: ['target', 'rel'],
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});
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}
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