Method openNode

packages/utils/renderer/highlight.js:128–132

(e)

			this.buffer += t(e);
		}
		openNode(e) {
			if (!o(e)) return;
			let n = e.kind;
			e.sublanguage || (n = `${this.classPrefix}${n}`), this.span(n);
		}
		closeNode(e) {
			o(e) && (this.buffer += s);
		}