uint8array-tools - npm Package Compare versions

Comparing version 0.0.7 to 0.0.8

package.json

 {
   "name": "uint8array-tools",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "description": "A library for dealing with Uint8Arrays.",
@@ -18,6 +18,8 @@ "homepage": "https://github.com/bitcoinjs/uint8array-tools#readme",
       "require": "./src/cjs/index.cjs",
-      "import": "./src/mjs/index.js"
+      "import": "./src/mjs/index.js",
+      "types": "./src/cjs/index.d.ts"
     },
     "browser": "./src/mjs/browser.js",
-    "default": "./src/mjs/browser.js"
+    "default": "./src/mjs/browser.js",
+    "types": "./src/cjs/index.d.ts"
   },
@@ -24,0 +26,0 @@ "types": "src/cjs/index.d.ts",

README.md

@@ -12,4 +12,4 @@ # Uint8Array Tools
 ```js
-import * as uint8arraytools from 'uint8array-tools';
-uint8arraytools.fromHex('ff');
+import * as uint8arraytools from "uint8array-tools";
+uint8arraytools.fromHex("ff");
 // Uint8Array(1) [ 255 ]
@@ -24,2 +24,19 @@ uint8arraytools.toHex(Uint8Array.from([0xff]));
 // -1
-```
+uint8arraytools.fromUtf8("tools");
+// Uint8Array(5) [ 116, 111, 111, 108, 115 ]
+uint8arraytools.toUtf8(Uint8Array.from([116, 111, 111, 108, 115]));
+// tools
+uint8arraytools.concat([Uint8Array.from([1]), Uint8Array.from([2])]);
+// Uint8Array(2) [ 1, 2 ]
+uint8arraytools.fromBase64("dG9vbHM=");
+// Uint8Array(3) [ 182, 138, 37 ]
+uint8arraytools.toBase64(Uint8Array.from([116, 111, 111, 108, 115]));
+// dG9vbHM=
+
+const uint8array = new Uint8Array(2);
+uint8arraytools.writeUInt16(uint8array, 0, 0xffff - 1, "LE");
+uint8array;
+// Uint8Array(2) [ 254, 255 ]
+uint8arraytools.readUInt16(uint8array, 0, "LE");
+// 65534
+```

src/cjs/index.d.ts

@@ -0,4 +1,18 @@
+export declare function toUtf8(bytes: Uint8Array): string;
+export declare function fromUtf8(s: string): Uint8Array;
+export declare function concat(arrays: Uint8Array[]): Uint8Array;
 export declare function toHex(bytes: Uint8Array): string;
 export declare function fromHex(hexString: string): Uint8Array;
+export declare function toBase64(bytes: Uint8Array): string;
+export declare function fromBase64(base64: string): Uint8Array;
 export declare type CompareResult = -1 | 0 | 1;
 export declare function compare(v1: Uint8Array, v2: Uint8Array): CompareResult;
+export declare type endian = "LE" | "BE" | "le" | "be";
+export declare function writeUInt8(buffer: Uint8Array, offset: number, value: number): void;
+export declare function writeUInt16(buffer: Uint8Array, offset: number, value: number, littleEndian: endian): void;
+export declare function writeUInt32(buffer: Uint8Array, offset: number, value: number, littleEndian: endian): void;
+export declare function writeUInt64(buffer: Uint8Array, offset: number, value: bigint, littleEndian: endian): void;
+export declare function readUInt8(buffer: Uint8Array, offset: number): number;
+export declare function readUInt16(buffer: Uint8Array, offset: number, littleEndian: endian): number;
+export declare function readUInt32(buffer: Uint8Array, offset: number, littleEndian: endian): number;
+export declare function readUInt64(buffer: Uint8Array, offset: number, littleEndian: endian): bigint;

src/mjs/browser.js

@@ -12,3 +12,19 @@ const HEX_STRINGS = "0123456789abcdefABCDEF";
 const ENCODER = new TextEncoder();
-const DECODER = new TextDecoder("ascii");
+const DECODER = new TextDecoder();
+export function toUtf8(bytes) {
+    return DECODER.decode(bytes);
+}
+export function fromUtf8(s) {
+    return ENCODER.encode(s);
+}
+export function concat(arrays) {
+    const totalLength = arrays.reduce((a, b) => a + b.length, 0);
+    const result = new Uint8Array(totalLength);
+    let offset = 0;
+    for (const array of arrays) {
+        result.set(array, offset);
+        offset += array.length;
+    }
+    return result;
+}
 // There are two implementations.
@@ -55,2 +71,13 @@ // One optimizes for length of the bytes, and uses TextDecoder.
 }
+export function toBase64(bytes) {
+    return btoa(String.fromCharCode(...bytes));
+}
+export function fromBase64(base64) {
+    const binaryString = atob(base64);
+    const bytes = new Uint8Array(binaryString.length);
+    for (let i = 0; i < binaryString.length; i++) {
+        bytes[i] = binaryString.charCodeAt(i);
+    }
+    return bytes;
+}
 // Same behavior as Buffer.compare()
@@ -66,1 +93,153 @@ export function compare(v1, v2) {
 }
+export function writeUInt8(buffer, offset, value) {
+    if (offset + 1 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    if (value > 0xff) {
+        throw new Error(`The value of "value" is out of range. It must be >= 0 and <= ${0xff}. Received ${value}`);
+    }
+    buffer[offset] = value;
+}
+export function writeUInt16(buffer, offset, value, littleEndian) {
+    if (offset + 2 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    if (value > 0xffff) {
+        throw new Error(`The value of "value" is out of range. It must be >= 0 and <= ${0xffff}. Received ${value}`);
+    }
+    if (littleEndian === "LE") {
+        buffer[offset] = value & 0xff;
+        buffer[offset + 1] = (value >> 8) & 0xff;
+    }
+    else {
+        buffer[offset] = (value >> 8) & 0xff;
+        buffer[offset + 1] = value & 0xff;
+    }
+}
+export function writeUInt32(buffer, offset, value, littleEndian) {
+    if (offset + 4 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    if (value > 0xffffffff) {
+        throw new Error(`The value of "value" is out of range. It must be >= 0 and <= ${0xffffffff}. Received ${value}`);
+    }
+    if (littleEndian === "LE") {
+        buffer[offset] = value & 0xff;
+        buffer[offset + 1] = (value >> 8) & 0xff;
+        buffer[offset + 2] = (value >> 16) & 0xff;
+        buffer[offset + 3] = (value >> 24) & 0xff;
+    }
+    else {
+        buffer[offset] = (value >> 24) & 0xff;
+        buffer[offset + 1] = (value >> 16) & 0xff;
+        buffer[offset + 2] = (value >> 8) & 0xff;
+        buffer[offset + 3] = value & 0xff;
+    }
+}
+export function writeUInt64(buffer, offset, value, littleEndian) {
+    if (offset + 8 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    if (value > 0xffffffffffffffffn) {
+        throw new Error(`The value of "value" is out of range. It must be >= 0 and <= ${0xffffffffffffffffn}. Received ${value}`);
+    }
+    if (littleEndian === "LE") {
+        buffer[offset] = Number(value & 0xffn);
+        buffer[offset + 1] = Number((value >> 8n) & 0xffn);
+        buffer[offset + 2] = Number((value >> 16n) & 0xffn);
+        buffer[offset + 3] = Number((value >> 24n) & 0xffn);
+        buffer[offset + 4] = Number((value >> 32n) & 0xffn);
+        buffer[offset + 5] = Number((value >> 40n) & 0xffn);
+        buffer[offset + 6] = Number((value >> 48n) & 0xffn);
+        buffer[offset + 7] = Number((value >> 56n) & 0xffn);
+    }
+    else {
+        buffer[offset] = Number((value >> 56n) & 0xffn);
+        buffer[offset + 1] = Number((value >> 48n) & 0xffn);
+        buffer[offset + 2] = Number((value >> 40n) & 0xffn);
+        buffer[offset + 3] = Number((value >> 32n) & 0xffn);
+        buffer[offset + 4] = Number((value >> 24n) & 0xffn);
+        buffer[offset + 5] = Number((value >> 16n) & 0xffn);
+        buffer[offset + 6] = Number((value >> 8n) & 0xffn);
+        buffer[offset + 7] = Number(value & 0xffn);
+    }
+}
+export function readUInt8(buffer, offset) {
+    if (offset + 1 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    return buffer[offset];
+}
+export function readUInt16(buffer, offset, littleEndian) {
+    if (offset + 2 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    if (littleEndian === "LE") {
+        let num = 0;
+        num = (num << 8) + buffer[offset + 1];
+        num = (num << 8) + buffer[offset];
+        return num;
+    }
+    else {
+        let num = 0;
+        num = (num << 8) + buffer[offset];
+        num = (num << 8) + buffer[offset + 1];
+        return num;
+    }
+}
+export function readUInt32(buffer, offset, littleEndian) {
+    if (offset + 4 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    if (littleEndian === "LE") {
+        let num = 0;
+        num = ((num << 8) + buffer[offset + 3]) >>> 0;
+        num = ((num << 8) + buffer[offset + 2]) >>> 0;
+        num = ((num << 8) + buffer[offset + 1]) >>> 0;
+        num = ((num << 8) + buffer[offset]) >>> 0;
+        return num;
+    }
+    else {
+        let num = 0;
+        num = ((num << 8) + buffer[offset]) >>> 0;
+        num = ((num << 8) + buffer[offset + 1]) >>> 0;
+        num = ((num << 8) + buffer[offset + 2]) >>> 0;
+        num = ((num << 8) + buffer[offset + 3]) >>> 0;
+        return num;
+    }
+}
+export function readUInt64(buffer, offset, littleEndian) {
+    if (offset + 8 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    if (littleEndian === "LE") {
+        let num = 0n;
+        num = (num << 8n) + BigInt(buffer[offset + 7]);
+        num = (num << 8n) + BigInt(buffer[offset + 6]);
+        num = (num << 8n) + BigInt(buffer[offset + 5]);
+        num = (num << 8n) + BigInt(buffer[offset + 4]);
+        num = (num << 8n) + BigInt(buffer[offset + 3]);
+        num = (num << 8n) + BigInt(buffer[offset + 2]);
+        num = (num << 8n) + BigInt(buffer[offset + 1]);
+        num = (num << 8n) + BigInt(buffer[offset]);
+        return num;
+    }
+    else {
+        let num = 0n;
+        num = (num << 8n) + BigInt(buffer[offset]);
+        num = (num << 8n) + BigInt(buffer[offset + 1]);
+        num = (num << 8n) + BigInt(buffer[offset + 2]);
+        num = (num << 8n) + BigInt(buffer[offset + 3]);
+        num = (num << 8n) + BigInt(buffer[offset + 4]);
+        num = (num << 8n) + BigInt(buffer[offset + 5]);
+        num = (num << 8n) + BigInt(buffer[offset + 6]);
+        num = (num << 8n) + BigInt(buffer[offset + 7]);
+        return num;
+    }
+}

src/mjs/index.js

@@ -0,1 +1,10 @@
+export function toUtf8(bytes) {
+    return Buffer.from(bytes || []).toString();
+}
+export function fromUtf8(s) {
+    return Uint8Array.from(Buffer.from(s || "", "utf8"));
+}
+export function concat(arrays) {
+    return Uint8Array.from(Buffer.concat(arrays));
+}
 export function toHex(bytes) {
@@ -7,4 +16,109 @@ return Buffer.from(bytes || []).toString("hex");
 }
+export function toBase64(bytes) {
+    return Buffer.from(bytes).toString("base64");
+}
+export function fromBase64(base64) {
+    return Uint8Array.from(Buffer.from(base64 || "", "base64"));
+}
 export function compare(v1, v2) {
     return Buffer.from(v1).compare(Buffer.from(v2));
 }
+export function writeUInt8(buffer, offset, value) {
+    if (offset + 1 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    const buf = Buffer.alloc(1);
+    buf.writeUInt8(value, 0);
+    buffer.set(Uint8Array.from(buf), offset);
+}
+export function writeUInt16(buffer, offset, value, littleEndian) {
+    if (offset + 2 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    const buf = Buffer.alloc(2);
+    if (littleEndian === "LE") {
+        buf.writeUInt16LE(value, 0);
+    }
+    else {
+        buf.writeUInt16BE(value, 0);
+    }
+    buffer.set(Uint8Array.from(buf), offset);
+}
+export function writeUInt32(buffer, offset, value, littleEndian) {
+    if (offset + 4 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    const buf = Buffer.alloc(4);
+    if (littleEndian === "LE") {
+        buf.writeUInt32LE(value, 0);
+    }
+    else {
+        buf.writeUInt32BE(value, 0);
+    }
+    buffer.set(Uint8Array.from(buf), offset);
+}
+export function writeUInt64(buffer, offset, value, littleEndian) {
+    if (offset + 8 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    const buf = Buffer.alloc(8);
+    if (value > 0xffffffffffffffffn) {
+        throw new Error(`The value of "value" is out of range. It must be >= 0 and <= ${0xffffffffffffffffn}. Received ${value}`);
+    }
+    if (littleEndian === "LE") {
+        buf.writeBigUInt64LE(value, 0);
+    }
+    else {
+        buf.writeBigUInt64BE(value, 0);
+    }
+    buffer.set(Uint8Array.from(buf), offset);
+}
+export function readUInt8(buffer, offset) {
+    if (offset + 1 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    const buf = Buffer.from(buffer);
+    return buf.readUInt8(offset);
+}
+export function readUInt16(buffer, offset, littleEndian) {
+    if (offset + 2 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    const buf = Buffer.from(buffer);
+    if (littleEndian === "LE") {
+        return buf.readUInt16LE(offset);
+    }
+    else {
+        return buf.readUInt16BE(offset);
+    }
+}
+export function readUInt32(buffer, offset, littleEndian) {
+    if (offset + 4 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    const buf = Buffer.from(buffer);
+    if (littleEndian === "LE") {
+        return buf.readUInt32LE(offset);
+    }
+    else {
+        return buf.readUInt32BE(offset);
+    }
+}
+export function readUInt64(buffer, offset, littleEndian) {
+    if (offset + 8 > buffer.length) {
+        throw new Error("Offset is outside the bounds of Uint8Array");
+    }
+    littleEndian = littleEndian.toUpperCase();
+    const buf = Buffer.from(buffer);
+    if (littleEndian === "LE") {
+        return buf.readBigUInt64LE(offset);
+    }
+    else {
+        return buf.readBigUInt64BE(offset);
+    }
+}

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Improved metrics

Total package byte prevSize

33389

increased by248.64%

Lines of code

788

increased by392.5%

Number of lines in readme file

41

increased by78.26%

Worsened metrics

Number of medium supply chain risk alerts

1

increased byInfinity%

No dependency changes