How to use with Rollup?

Hello Miguel, Thank you for your effort to improve i18n on Svelte.

I am currently using svelte-i18n and a good part of our bundle is the icu-messageformat-parser. I tried to install svelte-intl-precompile, but failed.

My rollup.config.js:

import precompileIntl from "svelte-intl-precompile/sveltekit-plugin";

export default {
  input: 'src/main.js',
  output: {
    sourcemap: true,
    format: 'iife',
    name: 'app',
    file: 'public/main.js',
  },
  plugins: [
    commonjs(),
    recompileIntl('i18n'),
  ]

I am getting:

Node tried to require an ES module from a CommonJS file, which is not supported

Is it possible to use with Rollup?

[cibernox]

Cool, let me know if you find anything that doesn’t work. I for instance I’m aware that ordinals (1st, 2nd, 3rd) might not work yet, but afaik everything else should be working.

[hmaesta]

Not so much, to be honest. Around 100 lines – but a lot with singular/plural variations. The biggest problem was:

file: /node_modules/@formatjs/icu-messageformat-parser/lib/parser.js original size: 48.151 KB