export declare const invalidProtocolRegex: RegExp;
export declare const htmlEntitiesRegex: RegExp;
export declare const htmlCtrlEntityRegex: RegExp;
export declare const ctrlCharactersRegex: RegExp;
export declare const urlSchemeRegex: RegExp;
export declare const whitespaceEscapeCharsRegex: RegExp;
export declare const relativeFirstCharacters: string[];
export declare const BLANK_URL = "about:blank";