Text Encoding

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This project is a heavily refactored clone of an old abandoned text-encoding library with the following changes:

• Refactored into a modern TypeScript project.
• Separated the monolithic script into many logical modules.
• Each encoding is a separate module and can be loaded individually if needed.
• No longer a polyfill for the Encoding API but a API compatible replacement with advanced features like encoding support for not just UTF-8.

Usage

Install the library as a dependency in your project:

npm install @kayahr/text-encoding

And then use it like this:

import { TextEncoder, TextDecoder } from "@kayahr/text-encoding";

const encoder = new TextEncoder("big5");
const encoded = encoder.encode(string);

const decoder = new TextDecoder("big5");
const decoded = decoder.decode(encoded);

When importing the module from @kayahr/text-encoding then all provided encodings are loaded automatically. If you want to keep your application as small as possible then you can import the module like this instead:

import { TextEncoder } from "@kayahr/text-encoding/no-encodings";

When doing this then no encodings are loaded and only UTF-8 is supported. When you later need a specific encoding then use imports like this:

import "@kayahr/text-encoding/encodings/shift_jis";

Or import all encodings:

import "@kayahr/text-encoding/encodings";

There is also a helper function for creating a text encoder which returns an implementation of the original TextEncoder (if present), when encoding is UTF-8 and an implementation of the custom TextEncoder from this library when encoding is not UTF-8:

import { createTextEncoder } from "@kayahr/text-encoding";

const encoder = createTextEncoder(encoding);

Supported encodings

| Encoding | Aliases |----------------|----------------------------------------------------------------------------------------------------- | big5 | big5-hkscs, cn-big5, csbig5, x-x-big5 | euc-jp | cseucpkdfmtjapanese, x-euc-jp | euc-kr | cseuckr, csksc56011987, iso-ir-149, korean, ks_c_5601-1987, ks_c_5601-1989, ksc5601, ksc_5601, windows-949 | gb18030 | | gbk | chinese, csgb2312, csiso58gb231280, gb2312, gb_2312, gb_2312-80, iso-ir-58, x-gbk | ibm866 | 866, cp866, csibm866 | iso-2022-jp | csiso2022jp | shift_jis | csshiftjis, ms932, ms_kanji, shift-jis, sjis, windows-31j, x-sjis | utf-8 | unicode-1-1-utf-8, utf8 | utf-16le | utf-16 | utf-16be | | iso-8859-2 | csisolatin2, iso-ir-101, iso8859-2, iso88592, iso_8859-2, iso_8859-2:1987, l2, latin2 | iso-8859-3 | csisolatin3, iso-ir-109, iso8859-3, iso88593, iso_8859-3, iso_8859-3:1988, l3, latin3 | iso-8859-4 | csisolatin4, iso-ir-110, iso8859-4, iso88594, iso_8859-4, iso_8859-4:1988, l4, latin4 | iso-8859-5 | csisolatincyrillic, cyrillic, iso-ir-144, iso8859-5, iso88595, iso_8859-5, iso_8859-5:1988 | iso-8859-6 | arabic, asmo-708, csiso88596e, csiso88596i, csisolatinarabic, ecma-114, iso-8859-6-e, iso-8859-6-i, iso-ir-127, iso8859-6, iso88596, iso_8859-6, iso_8859-6:1987 | iso-8859-7 | csisolatingreek, ecma-118, elot_928, greek, greek8, iso-ir-126, iso8859-7, iso88597, iso_8859-7, iso_8859-7:1987, sun_eu_greek | iso-8859-8 | csiso88598e, csisolatinhebrew, hebrew, iso-8859-8-e, iso-ir-138, iso8859-8, iso88598, iso_8859-8, iso_8859-8:1988, visual | iso-8859-10 | csisolatin6, iso-ir-157, iso8859-10, iso885910, l6, latin6 | iso-8859-13 | iso8859-13, iso885913 | iso-8859-14 | iso8859-14, iso885914 | iso-8859-15 | csisolatin9, iso8859-15, iso885915, iso_8859-15, l9 | iso-8859-16 | | koi8-r | cskoi8r, koi, koi8, koi8_r | koi8-u | koi8-ru | macintosh | csmacintosh, mac, x-mac-roman | windows-874 | dos-874, iso-8859-11, iso8859-11, iso885911, tis-620 | windows-1250 | cp1250, x-cp1250 | windows-1251 | cp1251, x-cp1251 | windows-1252 | ansi_x3.4-1968, ascii, cp1252, cp819, csisolatin1, ibm819, iso-8859-1, iso-ir-100, iso8859-1, iso88591, iso_8859-1, iso_8859-1:1987, l1, latin1, us-ascii, x-cp1252 | windows-1253 | cp1253, x-cp1253 | windows-1254 | cp1254, csisolatin5, iso-8859-9, iso-ir-148, iso8859-9, iso88599, iso_8859-9, iso_8859-9:1989, l5, latin5, x-cp1254 | windows-1255 | cp1255, x-cp1255 | windows-1256 | cp1256, x-cp1256 | windows-1257 | cp1257, x-cp1257 | windows-1258 | cp1258, x-cp1258 | x-mac-cyrillic | x-mac-ukrainian