/**
 * `hangul-service.ts`
 * - common service for handling hangul
 *
 *
 * @author      Tim Hong <tim@lemoncloud.io>
 * @date        2020-07-27 initial version
 *
 * @copyright (C) 2019 LemonCloud Co Ltd. - All Rights Reserved.
 */
/**
 * class `HangulService`
 * - transform hangul to qwerty type.
 */
export declare class HangulService {
    /** 1.Initial consonants (초성) */
    static readonly CHOSEONG: string[];
    /** 2. Medial vowels (중성) */
    static readonly JUNGSEONG: string[];
    /** 3. Final consonants (종성) */
    static readonly JONGSEONG: string[];
    /** Hangul Composite Jamo(겹자모) -> Hangul Basic Jamo(기본 자모) */
    protected static readonly JamoDecomposeMap: Map<string, string>;
    /** Hangul Jamo -> Alphabet (in QWERTY 2벌식) */
    protected static readonly QwertyMap: Map<string, string>;
    /**
     * say hello
     */
    hello: () => string;
    /**
     * Identify whether given text is Hangul or not
     *
     * @param text      input text
     * @param partial   (optional) if set true, result is true if there is at least one Korean letter in the text (default: false)
     */
    isHangul(text: string, partial?: boolean): boolean;
    /**
     * Decompose text into Hangul (Compatibility) Jamo sequence
     *  - 초성, 중성, 종성으로 분해
     *  e.g. '한글' -> 'ㅎㅏㄴㄱㅡㄹ', '맴찟' -> 'ㅁㅐㅁㅉㅣㅅ'
     *
     * [Note]
     *  유니코드 한글 자모는 초/중/종성에 서로 다른 코드 영역이 할당되어 있다.
     *  따라서 동일한 자모라도 초성에 위치할 때와 종성에 위치할 때 코드값이 다르다.
     *  (예. 초성 'ㄱ': U+1100, 종성 'ㄱ': U+11A8)
     *  이를 Compatibility Jamo로서 같은 코드값을 사용하도록 변형한다.
     * [Reference]
     *  - https://en.wikipedia.org/wiki/Hangul_Jamo_(Unicode_block)
     *  - https://en.wikipedia.org/wiki/Hangul_Compatibility_Jamo
     *
     * @param text  input text
     */
    asJamoSequence(text: string): string;
    /**
     * Decompose the text to Hangul Basic Jamo sequence (for Search-As-You-Type)
     *  - 다양한 종류의 입력 방식(e.g. 세벌식) 지원을 위해 최소 단위인 기본 자모(24자)로 분해함
     *  e.g. '한글' -> 'ㅎㅏㄴㄱㅡㄹ', '맴찟' -> 'ㅁㅏㅣㅁㅈㅈㅣㅅ'
     *
     * @param text  input text
     */
    asBasicJamoSequence(text: string): string;
    /**
     * Transform to Alphabet key stroke sequence (for QWERTY/Korean 2-bul)
     *  e.g. '한글' -> 'gksrmf'
     *
     * @param text  input text
     */
    asAlphabetKeyStokes(text: string): string;
    /**
     * 초성만을 추출 (Korean only)
     *  e.g. 한글 -> ㅎㄱ
     *
     * @param text  input text
     */
    asChoseongSequence(text: string): string;
    /**
     * Check the code is Hangul Unicode character
     *
     * @param code  character code
     */
    static isHangulChar(code: number): boolean;
    /**
     * Check the code is Hangul syllable
     *
     * @param code  character code
     */
    static isHangulSyllable(code: number): boolean;
    /**
     * Check the code is Hangul Jamo
     *
     * @param code  character code
     */
    static isHangulJamo(code: number): boolean;
    /**
     * Check the code is Hangul Compatibility Jamo
     *
     * @param code  character code
     */
    static isHangulCompatibilityJamo(code: number): boolean;
}
declare const _default: HangulService;
export default _default;