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Author: tgpholly

.gitignore

@@ -1,6 +1,3 @@
-# Custom
-lib/
-
 # Logs
 logs
 *.log

lib/index.d.ts

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+/// <reference types="node" />
+import { IReader } from "./readers/IReader";
+import { IWriter } from "./writers/IWriter";
+export declare enum Endian {
+    LE = 0,
+    BE = 1
+}
+export declare function createReader(endianness: Endian, buffer: Buffer): IReader;
+export declare function createWriter(endianness: Endian, size?: number): IWriter;

lib/index.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createWriter = exports.createReader = exports.Endian = void 0;
+const ReaderBE_1 = require("./readers/ReaderBE");
+const ReaderLE_1 = require("./readers/ReaderLE");
+const WriterBE_1 = require("./writers/WriterBE");
+const WriterLE_1 = require("./writers/WriterLE");
+var Endian;
+(function (Endian) {
+    Endian[Endian["LE"] = 0] = "LE";
+    Endian[Endian["BE"] = 1] = "BE";
+})(Endian = exports.Endian || (exports.Endian = {}));
+function createReader(endianness, buffer) {
+    if (endianness === Endian.LE) {
+        return new ReaderLE_1.ReaderLE(buffer);
+    }
+    else {
+        return new ReaderBE_1.ReaderBE(buffer);
+    }
+}
+exports.createReader = createReader;
+function createWriter(endianness, size) {
+    if (endianness === Endian.LE) {
+        return new WriterLE_1.WriterLE(size);
+    }
+    else {
+        return new WriterBE_1.WriterBE(size);
+    }
+}
+exports.createWriter = createWriter;

lib/readers/IReader.d.ts

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+/// <reference types="node" />
+export interface IReader {
+    readBuffer(bytes: number): Buffer;
+    readUint8Array(bytes: number): Uint8Array;
+    readByte(): number;
+    readUByte(): number;
+    readBool(): boolean;
+    readShort(): number;
+    readUShort(): number;
+    readInt(): number;
+    readUInt(): number;
+    readLong(): bigint;
+    readULong(): bigint;
+    readFloat(): number;
+    readDouble(): number;
+    readShortString(): string;
+    readString(): string;
+    readString16(): string;
+}

lib/readers/IReader.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });

lib/readers/ReaderBE.d.ts

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+import { IReader } from "./IReader";
+import { ReaderBase } from "./ReaderBase";
+export declare class ReaderBE extends ReaderBase implements IReader {
+    readShort(): number;
+    readUShort(): number;
+    readInt(): number;
+    readUInt(): number;
+    readLong(): bigint;
+    readULong(): bigint;
+    readFloat(): number;
+    readDouble(): number;
+    readShortString(): string;
+    readString(): string;
+    readString16(): string;
+}

lib/readers/ReaderBE.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ReaderBE = void 0;
+const ReaderBase_1 = require("./ReaderBase");
+class ReaderBE extends ReaderBase_1.ReaderBase {
+    readShort() {
+        const value = this.buffer.readInt16BE(this.offset);
+        this.offset += 2;
+        return value;
+    }
+    readUShort() {
+        const value = this.buffer.readUInt16BE(this.offset);
+        this.offset += 2;
+        return value;
+    }
+    readInt() {
+        const value = this.buffer.readInt32BE(this.offset);
+        this.offset += 4;
+        return value;
+    }
+    readUInt() {
+        const value = this.buffer.readUInt32BE(this.offset);
+        this.offset += 4;
+        return value;
+    }
+    readLong() {
+        const value = this.buffer.readBigInt64BE(this.offset);
+        this.offset += 8;
+        return value;
+    }
+    readULong() {
+        const value = this.buffer.readBigUint64BE(this.offset);
+        this.offset += 8;
+        return value;
+    }
+    readFloat() {
+        const value = this.buffer.readFloatBE(this.offset);
+        this.offset += 4;
+        return value;
+    }
+    readDouble() {
+        const value = this.buffer.readDoubleBE(this.offset);
+        this.offset += 8;
+        return value;
+    }
+    readShortString() {
+        const length = this.readUByte();
+        let text = "";
+        for (let i = 0; i < length; i++) {
+            text += String.fromCharCode(this.readUByte());
+        }
+        return text;
+    }
+    readString() {
+        const length = this.readUShort();
+        let text = "";
+        for (let i = 0; i < length; i++) {
+            text += String.fromCharCode(this.readUByte());
+        }
+        return text;
+    }
+    readString16() {
+        const length = this.readUShort();
+        let text = "";
+        for (let i = 0; i < length; i++) {
+            text += String.fromCharCode(this.readUShort());
+        }
+        return text;
+    }
+}
+exports.ReaderBE = ReaderBE;

lib/readers/ReaderBase.d.ts

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+/// <reference types="node" />
+export declare class ReaderBase {
+    buffer: Buffer;
+    offset: number;
+    constructor(buffer: Buffer);
+    readBuffer(bytes: number): Buffer;
+    readUint8Array(bytes: number): Uint8Array;
+    readByte(): number;
+    readUByte(): number;
+    readBool(): boolean;
+}

lib/readers/ReaderBase.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ReaderBase = void 0;
+class ReaderBase {
+    constructor(buffer) {
+        this.buffer = buffer;
+        this.offset = 0;
+    }
+    readBuffer(bytes) {
+        const value = this.buffer.subarray(this.offset, this.offset + bytes);
+        this.offset += bytes;
+        return value;
+    }
+    // NOTE: This has to be a copy as the subarray is only cropped & offset
+    //		 Realistically this is what we want anyway.
+    readUint8Array(bytes) {
+        const croppedBuffer = this.readBuffer(bytes);
+        const newArray = new Uint8Array(croppedBuffer.length);
+        for (let i = 0; i < croppedBuffer.length; i++) {
+            newArray[i] = croppedBuffer[i];
+        }
+        return newArray;
+    }
+    readByte() {
+        const value = this.buffer.readInt8(this.offset);
+        this.offset++;
+        return value;
+    }
+    readUByte() {
+        const value = this.buffer.readUInt8(this.offset);
+        this.offset++;
+        return value;
+    }
+    readBool() {
+        return Boolean(this.readUByte());
+    }
+}
+exports.ReaderBase = ReaderBase;

lib/readers/ReaderLE.d.ts

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+import { IReader } from "./IReader";
+import { ReaderBase } from "./ReaderBase";
+export declare class ReaderLE extends ReaderBase implements IReader {
+    readShort(): number;
+    readUShort(): number;
+    readInt(): number;
+    readUInt(): number;
+    readLong(): bigint;
+    readULong(): bigint;
+    readFloat(): number;
+    readDouble(): number;
+    readShortString(): string;
+    readString(): string;
+    readString16(): string;
+}