mirror of https://github.com/jkjoy/sunpeiwen.git
89 lines
3.2 KiB
JavaScript
89 lines
3.2 KiB
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
Object.defineProperty(exports, "__esModule", {
|
||
|
|
value: true
|
||
|
|
});
|
||
|
|
exports.overrideBytesInBuffer = overrideBytesInBuffer;
|
||
|
|
exports.makeBuffer = makeBuffer;
|
||
|
|
exports.fromHexdump = fromHexdump;
|
||
|
|
|
||
|
|
function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }
|
||
|
|
|
||
|
|
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
|
||
|
|
|
||
|
|
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
|
||
|
|
|
||
|
|
function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }
|
||
|
|
|
||
|
|
function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }
|
||
|
|
|
||
|
|
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
|
||
|
|
|
||
|
|
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, _arrays = arrays; _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];
|
||
|
|
}
|
||
|
|
|
||
|
|
// $FlowIgnore
|
||
|
|
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);
|
||
|
|
}
|