3c15bd9e29
This adds operations + "To EBCDIC" + "From EBCDIC" This makes use of the npm codepage package but it is not installed as a dependency. Instead I used the `make.sh` script to export pages 37 and 500. To my knowledge there is no way currently to only import individual code pages from the npm package (hence the included script). If we were to import the package directly it increases the build size by 2.7MB.
98 lines
2.1 KiB
JavaScript
Executable File
98 lines
2.1 KiB
JavaScript
Executable File
import cptable from "../lib/codepage.js";
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import Utils from "../Utils.js";
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import CryptoJS from "crypto-js";
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/**
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* Character encoding operations.
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*
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* @author n1474335 [n1474335@gmail.com]
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* @copyright Crown Copyright 2016
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* @license Apache-2.0
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*
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* @namespace
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*/
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const CharEnc = {
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/**
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* @constant
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* @default
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*/
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IO_FORMAT: ["UTF8", "UTF16", "UTF16LE", "UTF16BE", "Latin1", "Windows-1251", "Hex", "Base64"],
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/**
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* Text encoding operation.
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*
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* @param {string} input
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* @param {Object[]} args
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* @returns {string}
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*/
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run: function(input, args) {
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var inputFormat = args[0],
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outputFormat = args[1];
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if (inputFormat === "Windows-1251") {
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input = Utils.win1251ToUnicode(input);
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input = CryptoJS.enc.Utf8.parse(input);
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} else {
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input = Utils.format[inputFormat].parse(input);
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}
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if (outputFormat === "Windows-1251") {
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input = CryptoJS.enc.Utf8.stringify(input);
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return Utils.unicodeToWin1251(input);
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} else {
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return Utils.format[outputFormat].stringify(input);
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}
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},
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/**
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*
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* @author tlwr [toby@toby.codes]
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*
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* @constant
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* @default
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*/
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EBCDIC_CODEPAGES_MAPPING: {
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"IBM EBCDIC International": 500,
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"IBM EBCDIC US-Canada": 37,
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},
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/**
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* To EBCDIC operation.
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*
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* @author tlwr [toby@toby.codes]
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*
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* @param {string} input
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* @param {Object[]} args
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* @returns {byteArray}
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*/
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runToEBCDIC: function(input, args) {
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let pageNum = CharEnc.EBCDIC_CODEPAGES_MAPPING[args[0]];
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let output = cptable.utils.encode(pageNum, input);
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return Array.from(output);
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},
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/**
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* From EBCDIC operation.
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*
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* @author tlwr [toby@toby.codes]
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*
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* @param {byteArray} input
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* @param {Object[]} args
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* @returns {string}
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*/
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runFromEBCDIC: function(input, args) {
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let pageNum = CharEnc.EBCDIC_CODEPAGES_MAPPING[args[0]];
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let output = cptable.utils.decode(pageNum, input);
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return output;
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},
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};
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export default CharEnc;
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