// This is free and unencumbered software released into the public domain.
// See LICENSE.md for more information.
import { Big5Decoder, Big5Encoder } from '../coders/big5';
import { EUCJPDecoder, EUCJPEncoder } from '../coders/euc-jp';
import { EUCKRDecoder, EUCKREncoder } from '../coders/euc-kr';
import { GB18030Decoder, GB18030Encoder } from '../coders/gb18030';
import { ISO2022JPDecoder, ISO2022JPEncoder } from '../coders/iso-2022-jp';
import { ShiftJISDecoder, ShiftJISEncoder } from '../coders/shift-jis';
import { SingleByteDecoder, SingleByteEncoder } from '../coders/single-byte';
import { UTF16Decoder, UTF16Encoder } from '../coders/utf-16';
import { UTF8Decoder, UTF8Encoder } from '../coders/utf-8';
import { XUserDefinedDecoder, XUserDefinedEncoder } from '../coders/x-user-defined';
import { encodings } from './encodings';
import { index } from './indexes';
import { getEncodingIndexes } from './encoding-indexes-provider';
//
// Utilities
//
// import './encoding/utilities';
//
// Implementation of Encoding specification
// https://encoding.spec.whatwg.org/
//
//
// 4. Terminology
//
// import './encoding/terminology';
//
// 5. Encodings
//
// import "./encoding/encodings";
//
// 6. Indexes
//
// import './encoding/indexes';
const encodingIndexes = getEncodingIndexes();
// Registry of of encoder/decoder factories, by encoding name.
/** @type {Object.<string, function({fatal:boolean}): Encoder>} */
// const encoders: Encoders = {};
/** @type {Object.<string, function({fatal:boolean}): Decoder>} */
// const decoders: Decoders = {};
//
// 10. Legacy single-byte encodings
//
// 10.1 single-byte decoder
// 10.2 single-byte encoder
export const encoders = {
    // 9.1 utf-8
    // 9.1.1 utf-8 decoder
    // 9.1.2 utf-8 encoder
    /** @param {{fatal: boolean}} options */
    'UTF-8': (options) => new UTF8Encoder(options),
    //
    // 11. Legacy multi-byte Chinese (simplified) encodings
    //
    // 11.1 gbk
    // 11.1.1 gbk decoder
    // gbk's decoder is gb18030's decoder.
    // 11.1.2 gbk encoder
    // gbk's encoder is gb18030's encoder with its gbk flag set.
    /** @param {{fatal: boolean}} options */
    'GBK': (options) => new GB18030Encoder(options, true),
    // 11.2 gb18030
    // 11.2.1 gb18030 decoder
    // 11.2.2 gb18030 encoder
    /** @param {{fatal: boolean}} options */
    'gb18030': (options) => new GB18030Encoder(options),
    //
    // 12. Legacy multi-byte Chinese (traditional) encodings
    //
    // 12.1 Big5
    // 12.1.1 Big5 decoder
    // 12.1.2 Big5 encoder
    /** @param {{fatal: boolean}} options */
    'Big5': (options) => new Big5Encoder(options),
    //
    // 13. Legacy multi-byte Japanese encodings
    //
    // 13.1 euc-jp
    // 13.1.1 euc-jp decoder
    // 13.1.2 euc-jp encoder
    /** @param {{fatal: boolean}} options */
    'EUC-JP': (options) => new EUCJPEncoder(options),
    // 13.2 iso-2022-jp
    // 13.2.1 iso-2022-jp decoder
    // 13.2.2 iso-2022-jp encoder
    /** @param {{fatal: boolean}} options */
    'ISO-2022-JP': (options) => new ISO2022JPEncoder(options),
    // 13.3 Shift_JIS
    // 13.3.1 Shift_JIS decoder
    // 13.3.2 Shift_JIS encoder
    /** @param {{fatal: boolean}} options */
    'Shift_JIS': (options) => new ShiftJISEncoder(options),
    //
    // 14. Legacy multi-byte Korean encodings
    //
    // 14.1 euc-kr
    // 14.1.1 euc-kr decoder
    // 14.1.2 euc-kr encoder
    /** @param {{fatal: boolean}} options */
    'EUC-KR': (options) => new EUCKREncoder(options),
    //
    // 15. Legacy miscellaneous encodings
    //
    // 15.1 replacement
    // Not needed - API throws RangeError
    // 15.2 Common infrastructure for utf-16be and utf-16le
    // 15.2.1 shared utf-16 decoder
    // 15.2.2 shared utf-16 encoder
    // 15.3 utf-16be
    // 15.3.1 utf-16be decoder
    /** @param {{fatal: boolean}} options */
    'UTF-16BE': (options) => new UTF16Encoder(true, options),
    // 15.3.2 utf-16be encoder
    // 15.4 utf-16le
    // 15.4.1 utf-16le decoder
    /** @param {{fatal: boolean}} options */
    'UTF-16LE': (options) => new UTF16Encoder(false, options),
    // 15.4.2 utf-16le encoder
    // 15.5 x-user-defined
    // 15.5.1 x-user-defined decoder
    // 15.5.2 x-user-defined encoder
    /** @param {{fatal: boolean}} options */
    'x-user-defined': (options) => new XUserDefinedEncoder(options),
};
export const decoders = {
    /** @param {{fatal: boolean}} options */
    'UTF-8': (options) => new UTF8Decoder(options),
    /** @param {{fatal: boolean}} options */
    'GBK': (options) => new GB18030Decoder(options),
    /** @param {{fatal: boolean}} options */
    'gb18030': (options) => new GB18030Decoder(options),
    /** @param {{fatal: boolean}} options */
    'Big5': (options) => new Big5Decoder(options),
    /** @param {{fatal: boolean}} options */
    'EUC-JP': (options) => new EUCJPDecoder(options),
    /** @param {{fatal: boolean}} options */
    'ISO-2022-JP': (options) => new ISO2022JPDecoder(options),
    /** @param {{fatal: boolean}} options */
    'Shift_JIS': (options) => new ShiftJISDecoder(options),
    /** @param {{fatal: boolean}} options */
    'EUC-KR': (options) => new EUCKRDecoder(options),
    /** @param {{fatal: boolean}} options */
    'UTF-16BE': (options) => new UTF16Decoder(true, options),
    /** @param {{fatal: boolean}} options */
    'UTF-16LE': (options) => new UTF16Decoder(false, options),
    /** @param {{fatal: boolean}} options */
    'x-user-defined': (options) => new XUserDefinedDecoder(options),
};
if (encodingIndexes) {
    encodings.forEach(function (category) {
        if (category.heading !== 'Legacy single-byte encodings')
            return;
        category.encodings.forEach(function (encoding) {
            const name = encoding.name;
            const idx = index(name.toLowerCase());
            /** @param {{fatal: boolean}} options */
            decoders[name] = function (options) {
                return new SingleByteDecoder(idx, options);
            };
            /** @param {{fatal: boolean}} options */
            encoders[name] = function (options) {
                return new SingleByteEncoder(idx, options);
            };
        });
    });
}
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