//const gbk = require('./gbk.js');
|
//console.log("sasas" + gbk);
|
const formatTime = date => {
|
const year = date.getFullYear()
|
const month = date.getMonth() + 1
|
const day = date.getDate()
|
const hour = date.getHours()
|
const minute = date.getMinutes()
|
const second = date.getSeconds()
|
|
return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
|
}
|
|
const formatNumber = n => {
|
n = n.toString()
|
return n[1] ? n : '0' + n
|
}
|
|
/*
|
const hexStringToBuff = str => { //str='中国：WXHSH'
|
const buffer = new ArrayBuffer((sumStrLength(str)) * 4)
|
const dataView = new DataView(buffer)
|
var data = str.toString();
|
var p = 0; //ArrayBuffer 偏移量
|
for (var i = 0; i < data.length; i++) {
|
if (isCN(data[i])) { //是中文
|
//调用GBK 转码
|
var t = gbk.encode(data[i]);
|
for (var j = 0; j < 2; j++) {
|
//var code = t[j * 2] + t[j * 2 + 1];
|
var code = t[j * 3 + 1] + t[j * 3 + 2];
|
var temp = parseInt(code, 16)
|
//var temp = strToHexCharCode(code);
|
dataView.setUint8(p++, temp)
|
}
|
} else {
|
var temp = data.charCodeAt(i);
|
dataView.setUint8(p++, temp)
|
}
|
}
|
return buffer;
|
}
|
*/
|
function toUnicode(s) {
|
var str = "";
|
for (var i = 0; i < s.length; i++) {
|
str += "\\u" + s.charCodeAt(i).toString(16) + "\t";
|
}
|
return str;
|
}
|
|
function strToHexCharCode(str) {
|
if (str === "")
|
return "";
|
var hexCharCode = [];
|
hexCharCode.push("0x");
|
for (var i = 0; i < str.length; i++) {
|
hexCharCode.push((str.charCodeAt(i)).toString(16));
|
}
|
return hexCharCode.join("");
|
}
|
|
function sumStrLength(str) {
|
var length = 0;
|
var data = str.toString();
|
for (var i = 0; i < data.length; i++) {
|
if (isCN(data[i])) { //是中文
|
length += 2;
|
} else {
|
length += 1;
|
}
|
}
|
return length;
|
}
|
|
function isCN(str) {
|
if (/^[\u3220-\uFA29]+$/.test(str)) {
|
return true;
|
} else {
|
return false;
|
}
|
}
|
|
//汉字转码
|
function hexStringToArrayBuffer(str) {
|
const buffer = new ArrayBuffer((str.length / 2) + 1)
|
const dataView = new DataView(buffer)
|
for (var i = 0; i < str.length / 2; i++) {
|
var temp = parseInt(str[i * 2] + str[i * 2 + 1], 16)
|
dataView.setUint8(i, temp)
|
}
|
dataView.setUint8((str.length / 2), 0x0a)
|
return buffer;
|
}
|
|
//返回八位数组
|
function subString(str) {
|
var arr = [];
|
if (str.length > 8) { //大于8
|
for (var i = 0;
|
(i * 8) < str.length; i++) {
|
var temp = str.substring(i * 8, 8 * i + 8);
|
arr.push(temp)
|
}
|
return arr;
|
} else {
|
return str
|
}
|
}
|
|
//不带有汉字
|
function hexStringToArrayBufferstr(str) {
|
let val = ""
|
for (let i = 0; i < str.length; i++) {
|
if (val === '') {
|
val = str.charCodeAt(i).toString(16)
|
} else {
|
val += ',' + str.charCodeAt(i).toString(16)
|
}
|
}
|
val += "," + "0x0a";
|
console.log(val)
|
// 将16进制转化为ArrayBuffer
|
return new Uint8Array(val.match(/[\da-f]{2}/gi).map(function(h) {
|
return parseInt(h, 16)
|
})).buffer
|
}
|
|
function ab2hex(buffer) {
|
let hexArr = Array.prototype.map.call(
|
new Uint8Array(buffer),
|
function (bit) {
|
return ('00' + bit.toString(16)).slice(-2)
|
})
|
return hexArr.join('');
|
}
|
|
// ArrayBuffer转为字符串，参数为ArrayBuffer对象
|
function ab2str(buf) {
|
return String.fromCharCode.apply(null, new Uint8Array(buf));
|
}
|
|
// 字符串转为ArrayBuffer对象，参数为字符串
|
function str2ab(str) {
|
var buf = new ArrayBuffer(str.length+1); // 补充/0
|
var bufView = new Uint8Array(buf);
|
for (var i = 0, strLen = str.length; i < strLen; i++) {
|
bufView[i] = str.charCodeAt(i);
|
}
|
return buf;
|
}
|
|
function send0X0A() {
|
const buffer = new ArrayBuffer(1)
|
const dataView = new DataView(buffer)
|
dataView.setUint8(0, 0x0a)
|
return buffer;
|
}
|
|
function buf2hex(buffer) {
|
return Array.prototype.map.call(new Uint8Array(buffer), x => ('00' + x.toString(16)).slice(-2)).join('');
|
}
|
|
module.exports = {
|
hexStringToArrayBuffer: hexStringToArrayBuffer,
|
send0X0A: send0X0A,
|
ab2hex: ab2hex,
|
str2ab: str2ab,
|
ab2str: ab2str,
|
buf2hex: buf2hex
|
}
|
