Dutch Number Parser

Dutch Number Parser is a TypeScript library designed to parse and convert Dutch counting numbers into their numeric equivalents. This package is ideal for applications that need to interpret Dutch-written numbers in a numerical format, supporting numbers up to one million.

Features

• Comprehensive Parsing: Handles Dutch numbers up to one million, including complex forms like "twee honderd drie en veertig duizend vijf honderd zes en zeventig".
• Integration with ANTLR: Uses ANTLR (ANother Tool for Language Recognition) for robust parsing of Dutch number phrases.
• TypeScript Support: Fully written in TypeScript, providing type safety and autocompletion in TypeScript projects.
• Logging Support: Includes an ILogger interface for flexible logging integration.

Installation

You can install the package via npm:

npm install @grootstebozewolf/dutch-number-parser

Usage

Basic Usage

Import the Tel class from the package:

import { Tel } from '@grootstebozewolf/dutch-number-parser';

const dutchNumberString = "vier honderd zes en twintig";
const numericValue = Tel.parse(dutchNumberString);
console.log(numericValue); // Outputs: 426

Using with Logger

You can set a custom logger that implements the ILogger interface:

import { Tel, ILogger } from '@grootstebozewolf/dutch-number-parser';

class CustomLogger implements ILogger {
    logError(message: string): void {
        console.error(`Custom Error: ${message}`);
    }
    logInfo(message: string): void {
        console.log(`Custom Info: ${message}`);
    }
    logWarning(message: string): void {
        console.warn(`Custom Warning: ${message}`);
    }
}

Tel.setLogger(new CustomLogger());

const result = Tel.parse("drie honderd");
// This will use your custom logger for any logs

Supported Dutch Numbers

The Dutch Number Parser can handle a wide range of Dutch number phrases, including but not limited to:

• Simple numbers: "een", "twee", "drie"
• Tens: "twintig", "dertig", "veertig"
• Hundreds: "honderd", "twee honderd"
• Thousands: "duizend", "vier duizend drie honderd"
• Complex forms: "twee honderd drie en veertig duizend vijf honderd zes en zeventig"

Development and Contribution

Contributions are welcome! If you find a bug or have a feature request, please open an issue on the GitHub repository.

To develop locally:

1. Clone the repository.
2. Install dependencies using npm install.
3. Build the project with npm run build.
4. Run tests with npm test.

License