regexpu

What is regexpu?

The regexpu package is a tool that transforms regular expressions written in ES6/ES2015+ syntax into equivalent ES5-compatible code. This is particularly useful for developers who want to use modern JavaScript features while maintaining compatibility with older environments.

What are regexpu's main functionalities?

Transform Unicode Regular Expressions

This feature allows you to transform regular expressions that use the 'u' flag for Unicode support into equivalent ES5-compatible code. The code sample demonstrates how to use regexpu to transform a simple Unicode regular expression.

const regexpu = require('regexpu-core');
const output = regexpu('foo', 'u', { unicode: true });
console.log(output); // Output: 'foo'

Transform Sticky Regular Expressions

This feature allows you to transform regular expressions that use the 'y' flag for sticky matching into equivalent ES5-compatible code. The code sample shows how to transform a sticky regular expression.

const regexpu = require('regexpu-core');
const output = regexpu('foo', 'y', { sticky: true });
console.log(output); // Output: '(?:foo)'

Transform DotAll Regular Expressions

This feature allows you to transform regular expressions that use the 's' flag for dotAll mode into equivalent ES5-compatible code. The code sample illustrates how to transform a dotAll regular expression.

const regexpu = require('regexpu-core');
const output = regexpu('foo.bar', 's', { dotAll: true });
console.log(output); // Output: 'foo[\s\S]bar'

Other packages similar to regexpu

babel-plugin-transform-es2015-unicode-regex

This Babel plugin transforms ES2015 Unicode regular expressions into equivalent ES5 code. It is similar to regexpu in that it provides compatibility for modern JavaScript features in older environments, but it is specifically designed to be used as a Babel plugin.

regexgen

Regexgen is a tool for generating regular expressions from a list of strings. While it does not directly transform ES6 regular expressions like regexpu, it provides a way to create optimized regular expressions, which can be useful in similar contexts.

README

The README file is missing