remark-emoji

What is remark-emoji?

The remark-emoji npm package is a plugin for the remark processor that allows you to convert text-based emoji shortcodes into their corresponding Unicode emoji characters. This can be particularly useful for rendering markdown content with emojis in a more visually appealing way.

What are remark-emoji's main functionalities?

Convert Emoji Shortcodes to Unicode

This feature allows you to convert text-based emoji shortcodes (e.g., :heart:) into their corresponding Unicode emoji characters (❤️). The code sample demonstrates how to use the remark-emoji plugin with the remark processor to achieve this conversion.

const remark = require('remark');
const emoji = require('remark-emoji');

const markdown = 'I :heart: remark-emoji!';

remark()
  .use(emoji)
  .process(markdown, function (err, file) {
    if (err) throw err;
    console.log(String(file));
  });

Other packages similar to remark-emoji

markdown-it-emoji

The markdown-it-emoji package is a plugin for the markdown-it parser that converts emoji shortcodes into Unicode emoji characters. It offers similar functionality to remark-emoji but is designed to work with the markdown-it ecosystem instead of remark.

emojione

The emojione package provides a comprehensive set of tools for working with emojis, including converting shortcodes to Unicode and vice versa. While it offers broader functionality beyond just markdown processing, it can be used in conjunction with markdown parsers to achieve similar results to remark-emoji.

emoji-dictionary

The emoji-dictionary package provides a simple way to convert emoji shortcodes to Unicode characters and vice versa. It is a lightweight alternative that can be integrated into various text processing workflows, including markdown processing, to achieve similar functionality to remark-emoji.

README

remark-emoji

remark-emoji is a remark plugin to replace :emoji: to real UTF-8 emojis in Markdown text. This plugin is built on top of node-emoji. The accessibility support and Emoticon support are optionally available.

Demo

You can find a demo in the following Codesandbox.

Usage

remark().use(emoji [, options]);

import { remark } from 'remark';
import emoji from 'remark-emoji';

const doc = 'Emojis in this text will be replaced: :dog::+1:';
const processor = remark().use(emoji);
const file = await processor.process(doc);

console.log(String(file));
// => Emojis in this text will be replaced: 🐶👍

Note:

• This package is ESM only from v3.0.0 since remark packages migrated to ESM.
• This package supports Node.js v18 or later.

Options

options.accessible

Setting to true makes the converted emoji text accessible with role and aria-label attributes. Each emoji text is wrapped with <span> element. The role and aria-label attribute are not allowed by default. Please add them to the sanitization schema used by remark's HTML transformer. The default sanitization schema is exported from rehype-sanitize package.

For example,

import remarkParse from 'remark-parse';
import toRehype from 'remark-rehype';
import sanitize, { defaultSchema } from 'rehype-sanitize';
import stringify from 'rehype-stringify';
import emoji from 'remark-emoji';
import { unified } from 'unified';

// Allow using `role` and `aria-label` attributes in transformed HTML document
const schema = structuredClone(defaultSchema);
if ('span' in schema.attributes) {
    schema.attributes.span.push('role', 'ariaLabel');
} else {
    schema.attributes.span = ['role', 'ariaLabel'];
}

// Markdown text processor pipeline
const processor = unified()
    .use(remarkParse)
    .use(emoji, { accessible: true })
    .use(toRehype)
    .use(sanitize, schema)
    .use(stringify);

const file = await processor.process('Hello :dog:!');
console.log(String(file));

yields

Hello <span role="img" aria-label="dog emoji">🐶</span>!

Default value is false.

options.padSpaceAfter

Setting to true means that an extra whitespace is added after emoji. This is useful when browser handle emojis with half character length and following character is hidden. Default value is false.

options.emoticon

Setting to true means that emoticon shortcodes are supported (e.g. :-) will be replaced by 😃). Default value is false.

TypeScript support

remark-emoji package contains TypeScript type definitions. The package is ready for use with TypeScript.

Note that the legacy node (or node10) resolution at moduleResolution is not available since it enforces CommonJS module resolution and this package is ESM only. Please use node16, bundler, or nodenext to enable ESM module resolution.

License

Distributed under the MIT License.