pleshevski.ru/old/uikit/link.ts

import { AnyNode, Attrs, E } from "ren/node.ts";

export function Link(
  text: string,
  sourceAttrs: Attrs | Attrs[],
): AnyNode {
  const attrs = Array.isArray(sourceAttrs) ? sourceAttrs : [sourceAttrs];
  const isExternal = attrs.some((attr) =>
    typeof attr.href === "string" && attr.href?.startsWith("http")
  );

  if (isExternal) {
    attrs.push({
      target: "_blank",
      rel: "external nofollow noopener noreferrer",
    });
  }

  return E("a", attrs, text);
}