export declare const sudoAttrSelectorRegex: RegExp;
export declare enum SelectorType {
    class = "class",
    id = "id",
    tag = "tag",
    pseudo = "pseudo",
    invalid = "invalid"
}
export interface GroupSelectorObject {
    nested: boolean;
    type: "class" | "id" | "pseudo" | "tag" | "invalid";
    selector: string;
    child?: GroupSelectorObject;
}
export declare const nestOpRegex: RegExp;
export declare const classSelectors: RegExp;
export declare const idSelectors: RegExp;
export declare const pseudoSelectorRegex: RegExp;
export declare const globSelectorRegex: RegExp;
/**
 * recursively creates CSS selector relations Object
 * @author KR Tirtho
 * @param {string} src css selector string
 * @return {*}  {GroupSelectorObject}
 * @example
 * groupSelector(.class + div > button); //would return
 {
   nested: true,
    type: "class"
    selector: ".class",
    child: {
      nested: true,
      type: "tag",
      selector: "div",
      child: {
        nested: false,
        type: "tag", selector: "button"
      },
    },
  },
 */
export declare function groupSelector(src: string): GroupSelectorObject;