export type { JsonPrimitive } from './internal/types.js';
export { ToonError } from './internal/errors.js';
export { enforceInputLength } from './internal/security.js';
export interface SecurityOptions {
    /**
     * Maximum nesting depth (objects + arrays). Defaults to 64.
     */
    maxDepth?: number;
    /**
     * Maximum allowed array length. Defaults to 50_000.
     */
    maxArrayLength?: number;
    /**
     * Maximum total nodes (object fields + array items) processed.
     * Defaults to 250_000 to limit resource exhaustion.
     */
    maxTotalNodes?: number;
    /**
     * Keys that are rejected to avoid prototype pollution.
     * Defaults to ["__proto__", "constructor", "prototype"].
     */
    disallowedKeys?: string[];
    /**
     * Maximum allowed length of a raw input string passed to a `*ToToon` /
     * `*ToJson` decoder. Defaults to 5_000_000 (5 MB).
     * Set to `Infinity` to disable.
     */
    maxInputLength?: number;
}
export interface JsonToToonOptions extends SecurityOptions {
    /**
     * Number of spaces per indentation level. Defaults to 2.
     */
    indent?: number;
    /**
     * Delimiter to use for inline arrays and tabular rows.
     * Defaults to comma.
     */
    delimiter?: ',' | '|' | '\t';
    /**
     * When true, object keys are sorted alphabetically to keep output deterministic.
     * Defaults to false (preserve encounter order).
     */
    sortKeys?: boolean;
    /**
     * TOON v3 §13.4 key folding. When `'safe'`, single-key object chains are folded
     * into dotted paths (e.g. `{a:{b:{c:1}}}` -> `a.b.c: 1`) provided every segment
     * matches the IdentifierSegment grammar. Defaults to `'off'`.
     */
    keyFolding?: 'off' | 'safe';
    /**
     * Maximum number of segments included in a folded path (counting from the
     * outermost key). Has no practical effect below 2. Defaults to Infinity when
     * `keyFolding` is `'safe'`.
     */
    flattenDepth?: number;
}
export interface ToonToJsonOptions extends SecurityOptions {
    /**
     * Enforce declared array lengths, field counts, and indentation consistency.
     * Defaults to true.
     */
    strict?: boolean;
    /**
     * TOON v3 §13.4 path expansion. When `'safe'`, dotted keys are expanded into
     * nested objects (e.g. `a.b.c: 1` -> `{a:{b:{c:1}}}`) provided every segment
     * matches the IdentifierSegment grammar. Defaults to `'off'`.
     */
    expandPaths?: 'off' | 'safe';
}
export declare function jsonToToon(value: unknown, options?: JsonToToonOptions): string;
export declare function toonToJson(text: string, options?: ToonToJsonOptions): unknown;
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