ens-norm-uts46.js

• Unicode 16.0.0 (but can be built using any version)
• Generates entire family of UTS-46 ToUnicode() functions
  • Supports Bidi, Context{J,O}, and Punycode
• ✅️ Passes 100% IDNATestV2
• ⚠️ Uses String.normalize() for NFC (if no implementation is provided)
• ⚠️ Not space-efficient: ~188 KB minified

Example

import {create_uts46} from '@adraffy/ens-norm-uts46';
// npm i @adraffy/ens-norm-uts46
// browser: https://cdn.jsdelivr.net/npm/@adraffy/ens-norm-uts46@latest/dist/index.min.js

const uts46 = create_uts46({
	version: 2003,
	use_STD3: true,
	valid_deviations: true, // deprecated in 15.1
	check_hyphens: true,
	check_bidi: true,
	contextJ: true,
	contextO: false,
	check_leading_cm: true,
	punycode: true, // uses @adraffy/punycode.js
	nfc: cps => cps // number[] -> number[], leave unspecified for String.normalize()	
});

console.log(uts46('RAFFY.ETH'));

Build

• git clone this repo then npm install
• npm run derive — download and parse Unicode data files
  • Edit make.js to change Unicode version
  • Creates include.js
• npm run test — validate against IDNATestV2
• npm run build — create /dist/