carol-js

A powerful, small tool for building regular expressions.

• It maintains its readability even with complex regular expressions.
• It build a RegExp object by combining functions.
• It provides a package of ES modules.

import C from "carol-js";

const hex = C(/[0-9a-f][0-9a-f]/);

const uuid = C.seq([
  hex.many({ length: 4 }),
  C.token(/-/),
  hex.many({ length: 2 }),
  C.token(/-/),
  hex.many({ length: 2 }),
  C.token(/-/),
  hex.many({ length: 2 }),
  C.token(/-/),
  hex.many({ length: 6 }),
]);

const regex = uuid.toRegex({ flags: "i", exact: true });

assert.strictEqual(
  regex.source,
  "^(?:[0-9a-f][0-9a-f]){4}-(?:[0-9a-f][0-9a-f]){2}-(?:[0-9a-f][0-9a-f]){2}-(?:[0-9a-f][0-9a-f]){2}-(?:[0-9a-f][0-9a-f]){6}$"
);
assert.strictEqual(regex.flags, "i");

Get Started

1. Install package of carol-js to your project.

   npm i carol-js

2. Import the package to your TypeScript or JavaScript(ES modules) source files.

   import C from 'carol-js';

3. Enjoy carol-js!

Documents

• API reference
• Usage

Test

git clone https://github.com/marihachi/carol-js.git
cd carol-js
npm i
npm run build
npm test

License

MIT