/** A configured hyphenator for one language. */
export interface Hyphenator {
    /**
     * Return the 0-indexed break positions inside `word`. A position `p` means the
     * word can be split between `word[p-1]` and `word[p]`; e.g. "computer" with
     * breaks `[3,5]` → "com·pu·ter".
     */
    hyphenate: (word: string) => Array<number>;
}
/** Options for {@link createHyphenator}. */
export interface HyphenatorOptions {
    /** Minimum characters before the first break (TeX default: 2). */
    readonly leftMin?: number;
    /** Minimum characters after the last break (TeX default: 3 for English, often 2 elsewhere). */
    readonly rightMin?: number;
    /**
     * Explicit exceptions that override pattern output. Each is a word with
     * hyphens marking the allowed breaks, e.g. `"as-so-ciate"`.
     */
    readonly exceptions?: ReadonlyArray<string>;
}
/**
 * Build a Liang pattern-based {@link Hyphenator} from a pattern list.
 *
 * @param patterns The TeX-style hyphenation patterns (e.g. `"hy3ph"`).
 * @param options  Left/right minimums and explicit exceptions.
 * @returns The hyphenator.
 */
export declare function createHyphenator(patterns: ReadonlyArray<string>, options?: HyphenatorOptions): Hyphenator;
/**
 * Split a TeX-style pattern bundle (a whitespace-separated string) into the
 * pattern array {@link createHyphenator} expects.
 *
 * @param bundle The whitespace-separated patterns.
 * @returns The pattern array (empty entries removed).
 */
export declare function splitPatternBundle(bundle: string): Array<string>;