/** Formatting marker definitions: format name → wrapper string */
export declare const FORMAT_MARKERS: Record<string, string>;
/** Keyboard shortcut → format name mapping */
export declare const FORMAT_SHORTCUTS: Record<string, string>;
/** Check whether a format type is enabled in the element's formatting attribute. */
export declare function isFormatEnabled(el: HTMLElement, type: string): boolean;
/**
 * Calculate flat text offsets from a Range within a contenteditable root.
 * Walks the text nodes to compute character positions.
 */
export declare function getSelectionOffsets(root: HTMLElement, range: Range): {
    start: number;
    end: number;
} | null;
/**
 * Toggle wrapping markers around selected text.
 * If the selected text (or the surrounding text) already has the marker, unwrap. Otherwise wrap.
 */
export declare function toggleMarker(text: string, selectedText: string, start: number, end: number, marker: string, markerLen: number): {
    text: string;
    selStart: number;
    selEnd: number;
};
/** Restore a text selection by flat character offsets within a contenteditable root. */
export declare function restoreSelection(root: HTMLElement, start: number, end: number): void;
//# sourceMappingURL=formatting.d.ts.map