setLink(i, a, n) {
    i.split(",").forEach((u) => {
      const l = this.vertices.get(u);
      l !== void 0 && (l.link = it.formatUrl(a, this.config), l.linkTarget = n);
    }), this.setClass(i, "clickable");
  }
Called by parser when a link is found. Adds the URL to the vertex data.

@param ids - Comma separated list of ids
@param linkStr - URL to create a link for
@param target - Target attribute for the link