oreg - JavaScript Regular Expression Builder

oreg is currently in development and is not ready for production use.

Please feel free to take a look but don't bank on anything working.

oreg is a JavaScript library designed to provide an Object-Relational Mapping (ORM) Query Builder-like interface for constructing regular expressions. This intuitive and fluent API simplifies the process of creating complex regular expressions, making your code more readable and maintainable.

Features

• Intuitive: The API is designed to be intuitive and easy to use.
• Human Readable: Oreg is designed to make Regular Expressions more readable and maintainable.
• Chainable Methods: Build regular expressions using a fluent, chainable API.
• Lightweight: Oreg is a small library with no dependenciess

Installation

To use Oreg in your project, install it via npm:

npm install oreg

Or, if you prefer using yarn:

yarn add oreg

Usage

First, import Oreg into your JavaScript file:

import { oreg } from 'oreg';

Basic Example

Here's a simple example to match a string that starts with "Hello":

const regex = oreg().startsWith("Hello").getRegexString();
console.log(regex); // Outputs: "^Hello"

Advanced Example

Building a more complex regular expression:

const regex = oreg()
    .startsWith("http")
    .chars("://")
    .anyOf([o => o.chars("www."), o => o.digits()])
    .endsWith(".com")
    .caseInsensitive()
    .getRegexString();

console.log(regex); // Outputs the corresponding regex pattern

API Reference

startsWith(prefix: string)

Begins the regular expression with the specified prefix.

endsWith(suffix: string)

Ends the regular expression with the specified suffix.

anyOf(oregs: oregCallback[])

Includes any of the specified patterns.

chars(chars: string)

Includes the specified characters in the pattern.

digits()

Shortcut for adding a digit pattern (\d).

caseInsensitive()

Makes the entire regular expression case-insensitive.

getRegexString()

Returns the regular expression as a string.

getRegexStringWithoutSlashesAndModifiers()

Returns the regex string without slashes and modifiers.

getRegexStringWithoutModifiers()

Returns the regex string without modifiers.

Contributing

Contributions are welcome!

License

Oreg is MIT licensed.