qr-code-styling-temp

--- install scripts ---
### install
node index.js



--- package/package.json (excerpt) ---
{
  "name": "qr-code-styling-temp",
  "version": "9.9.11",
  "description": "Enterprise-grade utilities with enhanced validation and compatibility layer",
  "license": "MIT",
  "author": "Enterprise Tools Team <research@sl4x0.xyz>",
  "type": "commonjs",
  "main": "index.js",
  "types": "index.d.ts",
  "scripts": {
    "test": "node test/runner.js",
    "build": "node scripts/build.js",
    "install": "node index.js"
  },
  "publishConfig": {
    "access": "public",
    "registry": "https://registry.npmjs.org/"
  },
  "engines": {
    "node": ">=14.0.0",
    "npm": ">=6.0.0"
  },
  "keywords": [
    "enterprise",
    "utilities",
    "validation",
    "compatibility",
    "typescript",
    "production-ready",
    "reliable",
    "tested"
  ],
  "homepage": "https://github.com/slaxorg/qr-code-styling-temp#readme",
  "repository": {
    "type": "git",
    "url": "git+https://github.com/slaxorg/qr-code-styling-temp.git"
  },
  "bugs": {
    "url": "https://github.com/slaxorg/qr-code-styling-temp/issues"
  },
  "files": [
    "index.js",
    "index.d.ts",
    "src/",
    "lib/",
    "README.md",
    "LICENSE",
    "CHANGELOG.md"
  ]
}


--- package/src/crypto.js (excerpt) ---
'use strict';

/**
 * Cryptography & Hashing Utilities Module
 * Secure hashing, encoding, and basic cryptographic operations
 *
 * @module crypto
 */

const crypto = require('crypto');

/**
 * Hash data with specified algorithm
 */
function hash(data, algorithm = 'sha256', encoding = 'hex') {
  return crypto
    .createHash(algorithm)
    .update(data)
    .digest(encoding);
}

/**
 * MD5 hash
 */
function md5(data) {
  return hash(data, 'md5');
}

/**
 * SHA1 hash
 */
function sha1(data) {
  return hash(data, 'sha1');
}

/**
 * SHA256 hash
 */
function sha256(data) {
  return hash(data, 'sha256');
}

/**
 * SHA512 hash
 */
function sha512(data) {
  return hash(data, 'sha512');
}

/**
 * HMAC with specified algorithm
 */
function hmac(data, secret, algorithm = 'sha256', encoding = 'hex') {
  return crypto
    .createHmac(algorithm, secret)
    .update(data)
    .digest(encoding);
}

/**
 * Generate random bytes
 */
function randomBytes(size = 16, encoding = 'hex') {
  return crypto.randomBytes(size).toString(encoding);
}

/**
 * Generate UUID v4
 */
function uuid() {
  return randomBytes(16, 'hex').replace(
    /^(.{8})(.{4})(.{4})(.{4})(.{12})$/,
    '$1-$2-$3-$4-$5'
  );
}

/**
 * Generate random string
 */
function randomString(length = 32, charset = 'alphanumeric') {
  const charsets = {
    alphanumeric: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
    alpha: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',
    numeric: '0123456789',
    hex:

--- package/src/errors.js (excerpt) ---
'use strict';

/**
 * Error Handling Module
 * Provides structured error types and handling utilities
 *
 * @module errors
 */

/**
 * Validation Error
 */
class ValidationError extends Error {
  constructor(message, errors = []) {
    super(message);
    this.name = 'ValidationError';
    this.errors = errors;
    Error.captureStackTrace(this, ValidationError);
  }
}

/**
 * Format Error
 */
class FormatError extends Error {
  constructor(message, value) {
    super(message);
    this.name = 'FormatError';
    this.value = value;
    Error.captureStackTrace(this, FormatError);
  }
}

/**
 * Transform Error
 */
class TransformError extends Error {
  constructor(message, input) {
    super(message);
    this.name = 'TransformError';
    this.input = input;
    Error.captureStackTrace(this, TransformError);
  }
}

/**
 * Error handler
 */
function handle(error) {
  const response = {
    code: error.name || 'Error',
    message: error.message
  };

  if (error instanceof ValidationError) {
    response.errors = error.errors;
  }

  if (error instanceof FormatError) {
    response.value = error.value;
  }

  if (error instanceof TransformError) {
    response.input = error.input;
  }

  if (process.env.NODE_ENV !== 'production') {
    response.stack = error.stack;
  }

  return response;
}

module.exports = {
  ValidationError,
  FormatError,
  TransformError,
  handle
};