/**
 * Caverphone Phonetic Algorithm
 * src/phonetic/Caverphone.ts
 *
 * @see https://en.wikipedia.org/wiki/Caverphone
 *
 * This module implements the Caverphone phonetic algorithm, which is designed
 * to encode words into a phonetic representation. The Caverphone algorithm is
 * used primarily in New Zealand and was developed to assist in the indexing of
 * names in genealogical databases.
 *
 * It converts words into a standardized phonetic code, allowing for variations
 * in spelling and pronunciation to be matched.
 *
 * @module Phonetic
 * @name Caverphone
 * @author Paul Köhler (komed3)
 * @license MIT
 */
import type { PhoneticOptions } from '../utils/Types';
import { Phonetic } from './Phonetic';
/**
 * Caverphone class extends the Phonetic class to implement the Caverphone phonetic algorithm.
 */
export declare class Caverphone extends Phonetic {
    /** Regular expressions used in the Caverphone algorithm */
    private static readonly REGEX;
    /** Default options for the Caverphone phonetic algorithm */
    protected static default: PhoneticOptions;
    /**
     * Constructor for the Caverphone class.
     *
     * Initializes the Caverphone phonetic algorithm with the mapping and options.
     *
     * @param {PhoneticOptions} [opt] - Options for the Caverphone phonetic algorithm
     */
    constructor(opt?: PhoneticOptions);
    /**
     * Generates the Caverphone code for a given word.
     *
     * @param {string} word - The input word to be converted into a Caverphone code
     * @returns {string} - The generated Caverphone code
     */
    protected encode(word: string): string;
    /**
     * Overrides the mapChar method to skip character mapping.
     *
     * @param {string} char - The character to be mapped
     * @returns {string} - The mapped character
     */
    protected mapChar: (char: string) => string;
    /**
     * Adjusts the phonetic code to uppercase.
     *
     * @param {string} code - The phonetic code to adjust
     * @returns {string} - The adjusted phonetic code
     */
    protected adjustCode: (code: string) => string;
}