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# emoji-regex [![Build status](https://travis-ci.org/mathiasbynens/emoji-regex.svg?branch=main)](https://travis-ci.org/mathiasbynens/emoji-regex) _emoji-regex_ offers a regular expression to match all emoji symbols and sequences (including textual representations of emoji) as per the Unicode Standard. This repository contains a script that generates this regular expression based on [Unicode data](https://github.com/node-unicode/node-unicode-data). Because of this, the regular expression can easily be updated whenever new emoji are added to the Unicode standard. ## Installation Via [npm](https://www.npmjs.com/): ```bash npm install emoji-regex ``` In [Node.js](https://nodejs.org/): ```js const emojiRegex = require('emoji-regex/RGI_Emoji.js'); // Note: because the regular expression has the global flag set, this module // exports a function that returns the regex rather than exporting the regular // expression itself, to make it impossible to (accidentally) mutate the // original regular expression. const text = ` \u{231A}: β default emoji presentation character (Emoji_Presentation) \u{2194}\u{FE0F}: βοΈ default text presentation character rendered as emoji \u{1F469}: π© emoji modifier base (Emoji_Modifier_Base) \u{1F469}\u{1F3FF}: π©πΏ emoji modifier base followed by a modifier `; const regex = emojiRegex(); let match; while (match = regex.exec(text)) { const emoji = match[0]; console.log(`Matched sequence ${ emoji } β code points: ${ [...emoji].length }`); } ``` Console output: ``` Matched sequence β β code points: 1 Matched sequence β β code points: 1 Matched sequence βοΈ β code points: 2 Matched sequence βοΈ β code points: 2 Matched sequence π© β code points: 1 Matched sequence π© β code points: 1 Matched sequence π©πΏ β code points: 2 Matched sequence π©πΏ β code points: 2 ``` ## Regular expression flavors The package comes with three distinct regular expressions: ```js // This is the recommended regular expression to use. It matches all // emoji recommended for general interchange, as defined via the // `RGI_Emoji` property in the Unicode Standard. // https://unicode.org/reports/tr51/#def_rgi_set // When in doubt, use this! const emojiRegexRGI = require('emoji-regex/RGI_Emoji.js'); // This is the old regular expression, prior to `RGI_Emoji` being // standardized. In addition to all `RGI_Emoji` sequences, it matches // some emoji you probably donβt want to match (such as emoji component // symbols that are not meant to be used separately). const emojiRegex = require('emoji-regex/index.js'); // This regular expression matches even more emoji than the previous // one, including emoji that render as text instead of icons (i.e. // emoji that are not `Emoji_Presentation` symbols and that arenβt // forced to render as emoji by a variation selector). const emojiRegexText = require('emoji-regex/text.js'); ``` Additionally, in environments which support ES2015 Unicode escapes, you may `require` ES2015-style versions of the regexes: ```js const emojiRegexRGI = require('emoji-regex/es2015/RGI_Emoji.js'); const emojiRegex = require('emoji-regex/es2015/index.js'); const emojiRegexText = require('emoji-regex/es2015/text.js'); ``` ## For maintainers ### How to update emoji-regex after new Unicode Standard releases 1. Update the Unicode data dependency in `package.json` by running the following commands: ```sh # Example: updating from Unicode v12 to Unicode v13. npm uninstall @unicode/unicode-12.0.0 npm install @unicode/unicode-13.0.0 --save-dev ```` 1. Generate the new output: ```sh npm run build ``` 1. Verify that tests still pass: ```sh npm test ``` 1. Send a pull request with the changes, and get it reviewed & merged. 1. On the `main` branch, bump the emoji-regex version number in `package.json`: ```sh npm version patch -m 'Release v%s' ``` Instead of `patch`, use `minor` or `major` [as needed](https://semver.org/). Note that this produces a Git commit + tag. 1. Push the release commit and tag: ```sh git push ``` Our CI then automatically publishes the new release to npm. ## Author | [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") | |---| | [Mathias Bynens](https://mathiasbynens.be/) | ## License _emoji-regex_ is available under the [MIT](https://mths.be/mit) license.