/** Used to compose unicode character classes. */
export declare const rsAstralRange = "\\ud800-\\udfff";
export declare const rsComboRange: string;
export declare const rsComboMark: string;
export declare const rsVarRange = "\\ufe0e\\ufe0f";
/** Used to compose unicode capture groups. */
export declare const rsFitz = "\\ud83c[\\udffb-\\udfff]";
export declare const rsRegional = "(?:\\ud83c[\\udde6-\\uddff]){2}";
export declare const rsSurrPair = "[\\ud800-\\udbff][\\udc00-\\udfff]";
export declare const rsZWJ = "\\u200d";
export declare const rsAstralMark: string;
export declare const rsNonAstralMark: string;
export declare const rsComboFitzOptionalMark: string;
export declare const rsSequence: string;