esm-import-regex

Regular expressions for matching ESM import statements.

Installation

npm i esm-import-regex

Usage

const importRegex = require('esm-import-regex');
const regex1 = importRegex();
console.log(regex1.exec('import defaultMember from "module-name";'));
// [
//   'import defaultMember from "module-name";',
//   'defaultMember ',
//   'module-name',
//   index: 0,
//   input: 'import defaultMember from "module-name";',
//   groups: undefined
// ]

const regex2 = importRegex();
console.log(regex2.exec('import \'module-name\''));
// [
//   "import 'module-name'",
//   undefined,
//   'module-name',
//   index: 0,
//   input: "import 'module-name'",
//   groups: undefined
// ]

Match results

• 0 - full match
• 1 - entire export statement if present
• 2 - module to import from

Tests

Tests validate parsing all the MDN import examples.

npm run test

License

MIT