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Name	Size	Last Modified	Actions
[F]compare.js Edit	1.39 KB	2022-10-08 17:28:25
[F]index.js Edit	2.18 KB	2022-10-08 17:28:25

Editing: index.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.overrideBytesInBuffer = overrideBytesInBuffer;
exports.makeBuffer = makeBuffer;
exports.fromHexdump = fromHexdump;

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function concatUint8Arrays() {
  for (var _len = arguments.length, arrays = new Array(_len), _key = 0; _key < _len; _key++) {
    arrays[_key] = arguments[_key];
  }

var totalLength = arrays.reduce(function (a, b) {
    return a + b.length;
  }, 0);
  var result = new Uint8Array(totalLength);
  var offset = 0;

for (var _i = 0; _i < arrays.length; _i++) {
    var arr = arrays[_i];

if (arr instanceof Uint8Array === false) {
      throw new Error("arr must be of type Uint8Array");
    }

result.set(arr, offset);
    offset += arr.length;
  }

return result;
}

function overrideBytesInBuffer(buffer, startLoc, endLoc, newBytes) {
  var beforeBytes = buffer.slice(0, startLoc);
  var afterBytes = buffer.slice(endLoc, buffer.length); // replacement is empty, we can omit it

if (newBytes.length === 0) {
    return concatUint8Arrays(beforeBytes, afterBytes);
  }

var replacement = Uint8Array.from(newBytes);
  return concatUint8Arrays(beforeBytes, replacement, afterBytes);
}

function makeBuffer() {
  for (var _len2 = arguments.length, splitedBytes = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
    splitedBytes[_key2] = arguments[_key2];
  }

var bytes = [].concat.apply([], splitedBytes);
  return new Uint8Array(bytes).buffer;
}

function fromHexdump(str) {
  var lines = str.split("\n"); // remove any leading left whitespace

lines = lines.map(function (line) {
    return line.trim();
  });
  var bytes = lines.reduce(function (acc, line) {
    var cols = line.split(" "); // remove the offset, left column

cols.shift();
    cols = cols.filter(function (x) {
      return x !== "";
    });
    var bytes = cols.map(function (x) {
      return parseInt(x, 16);
    });
    acc.push.apply(acc, _toConsumableArray(bytes));
    return acc;
  }, []);
  return Buffer.from(bytes);
}

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