a msgpack implementation
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.greasyfork.org/scripts/450632/1088933/msgpacklib.js
const msgpacklib = {
reader: class {
constructor(t, e = 0) {
return this.buffer = t, this.dv = new DataView(this.buffer.buffer || this.buffer), this.offset = e, this
}
readString(t) {
let e = (t || this.dv.getUint8(this.offset++)) - 160,
s = "";
for (let t = 0; t < e; t++) s += String.fromCharCode(this.dv.getUint8(this.offset++));
return s
}
getArrayLegth() {
return this.dv.getUint8(this.offset++) - 144
}
readData() {
let t = this.dv.getUint8(this.offset++);
if (t < 128) return t;
if (t > 223) return this.dv.getInt8(this.offset - 1);
if (192 === t) return null;
if (195 === t) return !0;
if (194 === t) return !1;
if (t > 202 && t < 2010) switch (t) {
case 203:
return this.offset += 8, this.dv.getFloat64(this.offset - 8);
case 204:
return this.dv.getUint8(this.offset++);
case 205:
return this.offset += 2, this.dv.getUint16(this.offset - 2);
case 206:
return this.offset += 4, this.dv.getUint32(this.offset - 4);
case 208:
return this.dv.getInt8(this.offset++);
case 209:
return this.dv.getInt16((this.offset += 2) - 2)
} else {
if (t > 159 && t < 192) return this.readString(t);
if (t > 143 && t < 160 || 220 === t) {
let e = 220 === t ? this.dv.getUint16((this.offset += 2) - 2) : t - 144,
s = [];
for (let t = 0; t < e; t++) s.push(this.readData());
return s
}
if (t > 127 && t < 144) {
let e = t - 128,
s = {};
for (let t = 0; t < e; t++) s[this.readString()] = this.readData();
return s
}
}
}
},
writer: class {
constructor(t = 1, e) {
return 0 === t && (t = 1), this.offset = 0, this.buffer = new Uint8Array(t), this.dv = new DataView(this.buffer.buffer), this.setInt(146, !0), this
}
inflate(t = 1) {
if (this.offset + t < this.buffer.length) return;
let e = new Uint8Array(2 * this.buffer.length);
this.buffer.forEach((t, s) => e[s] = t), this.buffer = e, this.dv = new DataView(this.buffer.buffer), t + this.offset >= this.buffer.length && this.inflate(t)
}
setFloat(t) {
return this.inflate(8), this.dv.setFloat64(this.offset, t), this.offset += 8, this
}
setInt(t, e) {
return !e && t > 127 && (this.inflate(), this.dv.setUint8(this.offset++, 204)), this.inflate(), this.dv.setUint8(this.offset++, t), this
}
setString(t) {
return t.length >= 32 ? (this.setInt(217, !0), this.setInt(t.length, !0)) : this.setInt(160 + t.length, !0), t.split("").forEach(t => this.setInt(t.charCodeAt(), !0)), this
}
get arraybuffer() {
return this.buffer.slice(0, this.offset)
}
}
};
window.msgpacklib = msgpacklib;