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https://github.com/mathiasbynens/emoji-regex
A regular expression to match all Emoji-only symbols as per the Unicode Standard.
https://github.com/mathiasbynens/emoji-regex
emoji regex regexp regular-expression unicode
Last synced: about 1 month ago
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A regular expression to match all Emoji-only symbols as per the Unicode Standard.
- Host: GitHub
- URL: https://github.com/mathiasbynens/emoji-regex
- Owner: mathiasbynens
- License: mit
- Created: 2014-09-28T11:08:29.000Z (over 9 years ago)
- Default Branch: main
- Last Pushed: 2023-10-17T09:02:01.000Z (8 months ago)
- Last Synced: 2024-05-08T16:00:01.489Z (about 2 months ago)
- Topics: emoji, regex, regexp, regular-expression, unicode
- Language: JavaScript
- Homepage: https://mths.be/emoji-regex
- Size: 173 KB
- Stars: 1,694
- Watchers: 21
- Forks: 174
- Open Issues: 8
-
Metadata Files:
- Readme: README.md
- License: LICENSE-MIT.txt
Lists
- awesome-list - emoji-regex - only symbols as per the Unicode Standard. | mathiasbynens | 1241 | (JavaScript)
- awesome-fonts - emoji-regex - A regular expression to match all Emoji-only symbols as per the Unicode Standard (Emojis)
- awesome-stars - emoji-regex - only symbols as per the Unicode Standard. | mathiasbynens | 1462 | (JavaScript)
- awesome-stars - emoji-regex - only symbols as per the Unicode Standard. | mathiasbynens | 1711 | (JavaScript)
- awesome-stars - mathiasbynens/emoji-regex - A regular expression to match all Emoji-only symbols as per the Unicode Standard. (JavaScript)
- awesome-starred - mathiasbynens/emoji-regex - A regular expression to match all Emoji-only symbols as per the Unicode Standard. (emoji)
- awesome-github-star - emoji-regex - only symbols as per the Unicode Standard. | mathiasbynens | 1621 | (JavaScript)
- awesome-random-stuff - mathiasbynens/emoji-regex - A regular expression to match all Emoji-only symbols as per the Unicode Standard. (Uncategorized / Uncategorized)
- awesome-stars - emoji-regex - only symbols as per the Unicode Standard. | mathiasbynens | 1711 | (JavaScript)
README
# emoji-regex [![Build status](https://github.com/mathiasbynens/emoji-regex/actions/workflows/main.yml/badge.svg)](https://github.com/mathiasbynens/emoji-regex/actions/workflows/main.yml) [![emoji-regex on npm](https://img.shields.io/npm/v/emoji-regex)](https://www.npmjs.com/package/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. Itβs based on [_emoji-test-regex-pattern_](https://github.com/mathiasbynens/emoji-test-regex-pattern), which generates (at build time) the regular expression pattern based on the Unicode Standard. As a result, _emoji-regex_ can easily be updated whenever new emoji are added to Unicode.
## Installation
Via [npm](https://www.npmjs.com/):
```bash
npm install emoji-regex
```In [Node.js](https://nodejs.org/):
```js
const emojiRegex = require('emoji-regex');
// 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();
for (const match of text.matchAll(regex)) {
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
```## For maintainers
### How to update emoji-regex after new Unicode Standard releases
1. [Update _emoji-test-regex-pattern_ as described in its repository](https://github.com/mathiasbynens/emoji-test-regex-pattern#how-to-update-emoji-test-regex-pattern-after-new-uts51-releases).
1. Bump the _emoji-test-regex-pattern_ dependency to the latest version.
1. Update the Unicode data dependency in `package.json` by running the following commands:
```sh
# Example: updating from Unicode v13 to Unicode v14.
npm uninstall @unicode/unicode-13.0.0
npm install @unicode/unicode-14.0.0 --save-dev
````1. Generate the new output:
```sh
npm run build
```1. Verify that tests still pass:
```sh
npm test
```### How to publish a new release
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 && git push --tags
```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.