/**
 * WPS/PowerPoint slideshow digit buffer: type a 1-based slide number, then
 * Enter jumps. Escape clears a non-empty buffer without exiting the show.
 */
export declare function appendPresentationGotoDigit(buffer: string, key: string): string | null;
/** Resolve a typed digit buffer to a 0-based slide index, or null. */
export declare function resolvePresentationGotoIndex(buffer: string, slideCount: number): number | null;
export type PresentationGotoEscapeAction = 'clear-buffer' | 'exit';
export declare function presentationGotoEscapeAction(buffer: string): PresentationGotoEscapeAction;