Function highlight

web/lib/workers/highlight.worker.ts:58–71

(msg: InMessage)

}

async function highlight(msg: InMessage): Promise<OutMessage> {
  const highlighter = await getHighlighter();
  const theme = msg.theme ?? "github-dark";

  let html: string;
  try {
    html = highlighter.codeToHtml(msg.code, { lang: msg.lang, theme });
  } catch {
    // Unknown language — fall back to plain text rendering
    html = highlighter.codeToHtml(msg.code, { lang: "text", theme });
  }

  return { id: msg.id, html, plainText: msg.code };
}

self.addEventListener("message", async (e: MessageEvent<InMessage>) => {
  const result = await highlight(e.data);