in packages/dom/src/highlight-text.ts [128:142]
function wrapNodeInHighlight(
node: ChildNode,
tagName: string,
attributes: Record<string, string>,
): HTMLElement {
const document = node.ownerDocument as Document;
const highlightElement = document.createElement(tagName);
Object.keys(attributes).forEach((key) => {
highlightElement.setAttribute(key, attributes[key]);
});
const tempRange = document.createRange();
tempRange.selectNode(node);
tempRange.surroundContents(highlightElement);
return highlightElement;
}