88 lines
2.2 KiB
JavaScript
88 lines
2.2 KiB
JavaScript
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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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import Operation from "../Operation";
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import Utils from "../Utils";
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import {BIN_DELIM_OPTIONS} from "../lib/Delim";
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/**
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* From Binary operation
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*/
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class FromBinary extends Operation {
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/**
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* FromBinary constructor
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*/
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constructor() {
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super();
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this.name = "From Binary";
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this.module = "Default";
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this.description = "Converts a binary string back into its raw form.<br><br>e.g. <code>01001000 01101001</code> becomes <code>Hi</code>";
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this.inputType = "string";
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this.outputType = "byteArray";
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this.args = [
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{
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"name": "Delimiter",
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"type": "option",
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"value": BIN_DELIM_OPTIONS
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}
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];
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}
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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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run(input, args) {
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const delimRegex = Utils.regexRep(args[0] || "Space");
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input = input.replace(delimRegex, "");
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const output = [];
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const byteLen = 8;
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for (let i = 0; i < input.length; i += byteLen) {
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output.push(parseInt(input.substr(i, byteLen), 2));
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}
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return output;
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}
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/**
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* Highlight From Binary
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*
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* @param {Object[]} pos
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* @param {number} pos[].start
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* @param {number} pos[].end
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* @param {Object[]} args
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* @returns {Object[]} pos
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*/
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highlight(pos, args) {
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const delim = Utils.charRep(args[0] || "Space");
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pos[0].start = pos[0].start === 0 ? 0 : Math.floor(pos[0].start / (8 + delim.length));
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pos[0].end = pos[0].end === 0 ? 0 : Math.ceil(pos[0].end / (8 + delim.length));
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return pos;
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}
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/**
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* Highlight From Binary in reverse
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*
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* @param {Object[]} pos
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* @param {number} pos[].start
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* @param {number} pos[].end
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* @param {Object[]} args
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* @returns {Object[]} pos
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*/
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highlightReverse(pos, args) {
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const delim = Utils.charRep(args[0] || "Space");
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pos[0].start = pos[0].start * (8 + delim.length);
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pos[0].end = pos[0].end * (8 + delim.length) - delim.length;
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return pos;
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}
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}
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export default FromBinary;
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