/** @file Helpers for reasoning about and manipulating the text currently under the cursor. */
export interface TextUnderCursor {
    text: string;
    anchorOffset: number;
    focusOffset: number;
}
export declare const DEFAULT_TEXT_UNDER_CURSOR: {
    text: string;
    anchorOffset: number;
    focusOffset: number;
};
export declare function isSelectionCollapsed(textUnderCursor: TextUnderCursor): boolean;
export declare function getTextBeforeCursor(textUnderCursor: TextUnderCursor): string;
export declare function isCursorAtBoundary(textUnderCursor: TextUnderCursor): boolean;
export declare function canAutocompleteAtCursor(textUnderCursor: TextUnderCursor, partial?: string): boolean;
export declare function autocompleteAtCursor(textUnderCursor: TextUnderCursor, partial: string, complete: string): TextUnderCursor;