133 lines
3.7 KiB
JavaScript
133 lines
3.7 KiB
JavaScript
/**
|
|
* @author n1474335 [n1474335@gmail.com]
|
|
* @copyright Crown Copyright 2016
|
|
* @license Apache-2.0
|
|
*/
|
|
|
|
import Operation from "../Operation.mjs";
|
|
import {toHex, TO_HEX_DELIM_OPTIONS} from "../lib/Hex.mjs";
|
|
import Utils from "../Utils.mjs";
|
|
|
|
/**
|
|
* To Hex operation
|
|
*/
|
|
class ToHex extends Operation {
|
|
|
|
/**
|
|
* ToHex constructor
|
|
*/
|
|
constructor() {
|
|
super();
|
|
|
|
this.name = "To Hex";
|
|
this.module = "Default";
|
|
this.description = "Converts the input string to hexadecimal bytes separated by the specified delimiter.<br><br>e.g. The UTF-8 encoded string <code>Γειά σου</code> becomes <code>ce 93 ce b5 ce b9 ce ac 20 cf 83 ce bf cf 85 0a</code>";
|
|
this.infoURL = "https://wikipedia.org/wiki/Hexadecimal";
|
|
this.inputType = "ArrayBuffer";
|
|
this.outputType = "string";
|
|
this.args = [
|
|
{
|
|
name: "Delimiter",
|
|
type: "option",
|
|
value: TO_HEX_DELIM_OPTIONS
|
|
},
|
|
{
|
|
name: "Bytes per line",
|
|
type: "number",
|
|
value: 0
|
|
}
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @param {ArrayBuffer} input
|
|
* @param {Object[]} args
|
|
* @returns {string}
|
|
*/
|
|
run(input, args) {
|
|
let delim, comma;
|
|
if (args[0] === "0x with comma") {
|
|
delim = "0x";
|
|
comma = ",";
|
|
} else {
|
|
delim = Utils.charRep(args[0] || "Space");
|
|
}
|
|
const lineSize = args[1];
|
|
|
|
return toHex(new Uint8Array(input), delim, 2, comma, lineSize);
|
|
}
|
|
|
|
/**
|
|
* Highlight to Hex
|
|
*
|
|
* @param {Object[]} pos
|
|
* @param {number} pos[].start
|
|
* @param {number} pos[].end
|
|
* @param {Object[]} args
|
|
* @returns {Object[]} pos
|
|
*/
|
|
highlight(pos, args) {
|
|
let delim, commaLen = 0;
|
|
if (args[0] === "0x with comma") {
|
|
delim = "0x";
|
|
commaLen = 1;
|
|
} else {
|
|
delim = Utils.charRep(args[0] || "Space");
|
|
}
|
|
|
|
const lineSize = args[1],
|
|
len = delim.length + commaLen;
|
|
|
|
const countLF = function(p) {
|
|
// Count the number of LFs from 0 upto p
|
|
return (p / lineSize | 0) - (p >= lineSize && p % lineSize === 0);
|
|
};
|
|
|
|
pos[0].start = pos[0].start * (2 + len) + countLF(pos[0].start);
|
|
pos[0].end = pos[0].end * (2 + len) + countLF(pos[0].end);
|
|
|
|
// if the delimiters are not prepended, trim the trailing delimiter
|
|
if (!(delim === "0x" || delim === "\\x")) {
|
|
pos[0].end -= delim.length;
|
|
}
|
|
// if there is comma, trim the trailing comma
|
|
pos[0].end -= commaLen;
|
|
return pos;
|
|
}
|
|
|
|
/**
|
|
* Highlight from Hex
|
|
*
|
|
* @param {Object[]} pos
|
|
* @param {number} pos[].start
|
|
* @param {number} pos[].end
|
|
* @param {Object[]} args
|
|
* @returns {Object[]} pos
|
|
*/
|
|
highlightReverse(pos, args) {
|
|
let delim, commaLen = 0;
|
|
if (args[0] === "0x with comma") {
|
|
delim = "0x";
|
|
commaLen = 1;
|
|
} else {
|
|
delim = Utils.charRep(args[0] || "Space");
|
|
}
|
|
|
|
const lineSize = args[1],
|
|
len = delim.length + commaLen,
|
|
width = len + 2;
|
|
|
|
const countLF = function(p) {
|
|
// Count the number of LFs from 0 up to p
|
|
const lineLength = width * lineSize;
|
|
return (p / lineLength | 0) - (p >= lineLength && p % lineLength === 0);
|
|
};
|
|
|
|
pos[0].start = pos[0].start === 0 ? 0 : Math.round((pos[0].start - countLF(pos[0].start)) / width);
|
|
pos[0].end = pos[0].end === 0 ? 0 : Math.ceil((pos[0].end - countLF(pos[0].end)) / width);
|
|
return pos;
|
|
}
|
|
}
|
|
|
|
export default ToHex;
|