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i18next-react-postprocessor

embed React elements inside your i18next translation strings

About

because sometimes you just want to dump some JSX into your l10n'd text and don't want to be bothered with the whole react-i18next dog-and-pony show.

Getting Started

$ npm install --save i18next-react-postprocessor

Usage

import the package in the usual way, and use a new instance of the exported class as i18next middleware:

import i18next from 'i18next';
import ReactPostprocessor from 'i18next-react-postprocessor';

i18next
  .use(new ReactPostprocessor())
  .init();

then when it's time to render translated strings, make sure you set the postProcess option to 'reactPostprocessor':

import i18next from 'i18next';
import React from 'react';

function MyComponent(props) {
  return (
    <div>
      {i18next.t(`myKey`, {
        postProcess: `reactPostprocessor`
      })}
    </div>
  );
}

or, if you're using it in more than just a few places, it might be worth adding to i18next's init options instead:

i18next
  .use(new ReactPostprocessor())
  .init({
    postProcess: [ `reactPostprocessor` ]
  });

// now you don't need to specify "postProcess: 'reactPostprocessor'" when calling i18next.t

the postprocessor by default looks for tokens delimited by <angleyBrackets> to perform interpolation of React elements:

i18next
  .use(new ReactPostprocessor())
  .init({
    lng: `en`,
    postProcess: [ `reactPostprocessor` ],
    resources: {
      en: {
        translation: {
          myKey: `just <clickHere> to do the things`
        }
      },
      fr: {
        translation: {
          myKey: `<clickHere> et voila`
        }
      }
    }
  });

element interpolation is done just like regular ol' string interpolation:

render() {
  return (
    <div>
      {i18next.t(`myKey`, {
        clickHere: ( <img onClick={() => console.log(`click!`)} src="pug.jpg" /> )
      })}
    </div>
  );
}

API

ReactPostprocessor({opts})

const middleware = new ReactPostprocessor({
  keepUnknownVariables: Boolean
  prefix: String
  suffix: String
});

all fields are optional.

keepUnknownVariables controls whether or not to preserve any interpolation tokens which aren't present in the options passed to i18next.t; it defaults to false (meaning tokens with no corresponding value are replaced with the empty string). prefix and suffix define the beginning and end of the interpolation token to look for; they default to '<' and '>' respectively.

Development & Example App

$ git clone https://www.github.com/orzechowskid/i18next-react-postprocessor
$ npm install
[ edit edit edit... ]
$ npm run example
$ open http://localhost:8808
[ verify verify verify... ]
$ npm run build

Testing

a full test suite is located in src/_tests_ . npm run test should run jest --verbose --coverage.

License

MIT

About

embed React elements inside your i18next translation strings

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