/**
 * Handlebars Template Protection Utilities
 *
 * Protects Handlebars syntax ({{...}}, {{#each}}, {{/each}}, etc.) from being
 * corrupted by contentEditable browser normalization during visual editing.
 *
 * Strategy:
 * - Block helpers ({{#each}}, {{/each}}, {{#if}}, etc.) are converted to HTML comments
 * - Regular variables ({{variable}}) are replaced with placeholder spans
 */
interface PlaceholderMap {
    [key: string]: string;
}
/**
 * Convert Handlebars syntax to protected format
 * - Block helpers ({{#each}}, {{/each}}, etc.) → HTML comments
 * - Regular variables ({{variable}}) → placeholder spans
 * @param html - Raw HTML with Handlebars syntax
 * @returns HTML with protected syntax + mapping object
 */
export declare function protectHandlebars(html: string): {
    html: string;
    map: PlaceholderMap;
};
/**
 * Restore Handlebars syntax from protected format
 * - HTML comments → Block helpers
 * - Placeholder spans → Regular variables
 * @param html - HTML with protected syntax
 * @param map - Mapping of placeholder IDs to original Handlebars syntax
 * @returns Original HTML with Handlebars syntax restored
 */
export declare function restoreHandlebars(html: string, map?: PlaceholderMap): string;
/**
 * Check if HTML contains Handlebars syntax
 * @param html - HTML string to check
 * @returns true if Handlebars syntax is found
 */
export declare function containsHandlebars(html: string): boolean;
/**
 * Auto-protect Handlebars in contentEditable on load
 * Call this when loading HTML into the editor
 */
export declare function prepareForEditing(html: string): {
    html: string;
    map: PlaceholderMap;
};
/**
 * Auto-restore Handlebars when getting HTML from editor
 * Call this when saving/exporting HTML from the editor
 */
export declare function prepareForSaving(html: string, map?: PlaceholderMap): string;
export {};
