import type { CaretTransformation, PositionedGlyphLayout, SelectionTransformation } from './types.js';
export declare function getCharIndex(layout: PositionedGlyphLayout | undefined, x: number, y: number, position: 'between' | 'on'): number;
export declare function getCaretTransformation(layout: PositionedGlyphLayout | undefined, charIndex: number): CaretTransformation | undefined;
export declare function getSelectionTransformations(layout: PositionedGlyphLayout | undefined, range: readonly [number, number] | undefined): {
    caret: CaretTransformation | undefined;
    selections: Array<SelectionTransformation>;
};