@zxing/text-encoding
Version:
Polyfill for the Encoding Living Standard's API.
168 lines • 6.62 kB
JavaScript
// 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';
var 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 var encoders = {
// 9.1 utf-8
// 9.1.1 utf-8 decoder
// 9.1.2 utf-8 encoder
/** @param {{fatal: boolean}} options */
'UTF-8': function (options) { return 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': function (options) { return new GB18030Encoder(options, true); },
// 11.2 gb18030
// 11.2.1 gb18030 decoder
// 11.2.2 gb18030 encoder
/** @param {{fatal: boolean}} options */
'gb18030': function (options) { return 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': function (options) { return 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': function (options) { return 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': function (options) { return 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': function (options) { return 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': function (options) { return 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': function (options) { return 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': function (options) { return 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': function (options) { return new XUserDefinedEncoder(options); },
};
export var decoders = {
/** @param {{fatal: boolean}} options */
'UTF-8': function (options) { return new UTF8Decoder(options); },
/** @param {{fatal: boolean}} options */
'GBK': function (options) { return new GB18030Decoder(options); },
/** @param {{fatal: boolean}} options */
'gb18030': function (options) { return new GB18030Decoder(options); },
/** @param {{fatal: boolean}} options */
'Big5': function (options) { return new Big5Decoder(options); },
/** @param {{fatal: boolean}} options */
'EUC-JP': function (options) { return new EUCJPDecoder(options); },
/** @param {{fatal: boolean}} options */
'ISO-2022-JP': function (options) { return new ISO2022JPDecoder(options); },
/** @param {{fatal: boolean}} options */
'Shift_JIS': function (options) { return new ShiftJISDecoder(options); },
/** @param {{fatal: boolean}} options */
'EUC-KR': function (options) { return new EUCKRDecoder(options); },
/** @param {{fatal: boolean}} options */
'UTF-16BE': function (options) { return new UTF16Decoder(true, options); },
/** @param {{fatal: boolean}} options */
'UTF-16LE': function (options) { return new UTF16Decoder(false, options); },
/** @param {{fatal: boolean}} options */
'x-user-defined': function (options) { return new XUserDefinedDecoder(options); },
};
if (encodingIndexes) {
encodings.forEach(function (category) {
if (category.heading !== 'Legacy single-byte encodings')
return;
category.encodings.forEach(function (encoding) {
var name = encoding.name;
var 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);
};
});
});
}
//# sourceMappingURL=encoding-factory.js.map