/**
 * Korean & Japanese Encoding Tables
 *
 * Provides character mapping support for:
 * - EUC-KR (Korean) - KS X 1001/1003 encoding
 * - Shift-JIS (Japanese) - JIS X 0201/0208 encoding
 * - ISO-2022-JP (Japanese) - JIS encoding with escape sequences
 *
 * Note: For full coverage, these use TextEncoder/TextDecoder as the primary
 * implementation since they provide native support in modern environments.
 * The mapping tables here serve as reference and fallback.
 */
/**
 * KS X 1001 (Hangul) code range in EUC-KR:
 * First byte: 0xB0-0xC8 (128-200)
 * Second byte: 0xA1-0xFE (161-254)
 *
 * KS X 1003 (Hanja) code range in EUC-KR:
 * First byte: 0xCA-0xFD
 * Second byte: 0xA1-0xFE
 */
export declare const HANGUL_SYLLABLE_OFFSET = 44032;
export declare const HANGUL_INITIAL_COUNT = 21;
export declare const HANGUL_MEDIAL_COUNT = 21;
export declare const HANGUL_FINAL_COUNT = 28;
/**
 * JIS X 0201 (Half-width Katakana):
 * First byte: 0xA1-0xDF (single-byte)
 *
 * JIS X 0208 (Kanji):
 * First byte: 0x81-0x9F (low) or 0xE0-0xEF (high)
 * Second byte: 0x40-0x7E (low) or 0x80-0xFC (high)
 *
 * JIS X 0212 (Supplementary Kanji):
 * First byte: 0xE0-0xEA
 * Second byte: 0x40-0x7E or 0x80-0xFC
 */
export declare const SHIFT_JIS_KATAKANA_START = 161;
export declare const SHIFT_JIS_KATAKANA_END = 223;
export declare const SHIFT_JIS_KANJI_LOW_START = 129;
export declare const SHIFT_JIS_KANJI_LOW_END = 159;
export declare const SHIFT_JIS_KANJI_HIGH_START = 224;
export declare const SHIFT_JIS_KANJI_HIGH_END = 239;
export declare const SHIFT_JIS_KANJI_SECOND_MIN = 64;
export declare const SHIFT_JIS_KANJI_SECOND_MAX = 252;
/**
 * Check if a Unicode code point is a Korean Hangul syllable
 */
export declare function isKoreanHangul(code: number): boolean;
/**
 * Check if a Unicode code point is a Korean Hanja (Hanja)
 */
export declare function isKoreanHanja(code: number): boolean;
/**
 * Check if a Unicode code point is basic Korean (Hangul Jamo)
 */
export declare function isKoreanJamo(code: number): boolean;
/**
 * Check if a code point is Japanese Hiragana
 */
export declare function isJapaneseHiragana(code: number): boolean;
/**
 * Check if a code point is Japanese Katakana (full-width)
 */
export declare function isJapaneseKatakana(code: number): boolean;
/**
 * Check if a code point is Japanese Kanji (CJK Unified Ideographs in Japanese range)
 */
export declare function isJapaneseKanji(code: number): boolean;
/**
 * Encode a Hangul syllable to EUC-KR bytes
 *
 * Hangul syllables in Unicode are algorithmically decomposable:
 * 1. Syllable = 0xAC00 + (initial × 21 + medial) × 28 + final
 * 2. We decompose to lead, vowel, trail
 * 3. Then convert to EUC-KR lead/trail bytes
 */
export declare function encodeHangulSyllable(code: number): [number, number] | null;
/**
 * Convert Unicode Hiragana to Shift-JIS
 * U+3040-309F → 0x829F-0x82F1 (simplified mapping)
 */
export declare function unicodeToShiftJisHiragana(code: number): [number, number] | null;
/**
 * Convert Unicode Katakana to Shift-JIS
 * U+30A0-30FF → 0x8340-0x8396 (full-width Katakana)
 */
export declare function unicodeToShiftJisKatakana(code: number): [number, number] | null;
/**
 * Convert half-width Katakana to Shift-JIS
 * U+FF61-U+FF9F → 0xA1-0xDF
 */
export declare function unicodeToHalfWidthKatakana(code: number): number | null;
/**
 * Check if a code point is in JIS X 0208 range and estimate its Shift-JIS position
 * This is a simplified heuristic - full conversion requires large tables
 */
export declare function isInJisX0208Range(code: number): boolean;
/**
 * ISO-2022-JP (JIS X 4081) escape sequences:
 * - ESC ( B - ASCII
 * - ESC ( J - JIS X 0201 Roman
 * - ESC $ B - JIS X 0208
 * - ESC $ @ - JIS X 0208:1983 (old)
 * - ESC $ D - JIS X 0208:1990 (new)
 * - ESC $ ( C - JIS X 0212 supplementary
 */
/**
 * ISO-2022-JP escape sequences
 */
export declare const ISO2022JP_ESC_ASCII: Uint8Array<ArrayBuffer>;
export declare const ISO2022JP_ESC_JIS0201: Uint8Array<ArrayBuffer>;
export declare const ISO2022JP_ESC_JIS0208: Uint8Array<ArrayBuffer>;
export declare const ISO2022JP_ESC_JIS0208_83: Uint8Array<ArrayBuffer>;
export declare const ISO2022JP_ESC_JIS0208_90: Uint8Array<ArrayBuffer>;
/**
 * ISO-2022-JP text encoder state
 */
export type ISO2022JPState = 'ASCII' | 'JIS0208' | 'JIS0201';
/**
 * Check if a code point requires JIS X 0208 escape sequence
 */
export declare function requiresJisX0208Escape(code: number): boolean;
/**
 * Check if a code point is JIS X 0201 Katakana (half-width)
 */
export declare function isJisX0201Katakana(code: number): boolean;