type DoctypeKind = 'PUBLIC' | 'SYSTEM' | 'UNKNOWN';
export interface ParsedDoctype {
    raw: string;
    name: string | undefined;
    kind: DoctypeKind;
    publicId?: string;
    systemId?: string;
    internalSubset?: string;
}
/**
 * Parse the string provided by `sax`'s `ondoctype` callback.
 *
 * Examples of input:
 *  - "article PUBLIC '-//OASIS//DTD DocBook XML V4.5//EN' 'http://.../docbookx.dtd'"
 *  - "svg SYSTEM 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'"
 *  - "plist SYSTEM \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\""
 *  - "root [ <!ENTITY ...> ]"
 */
export declare function parseDoctype(raw: string): ParsedDoctype;
export {};