This is a port of mathiasbynens/emoji-regex to Go. The RE2 regex is provided by emoji-test-regex-pattern.

This module exports one and only symbol, emojiregexp.EmojiRegexp, which is a regular *regexp.Regexp that matches all Unicode emojis, including multi-codepoint ones.

Currently supported Unicode version is 15.1.

re2.txt is generated by running ./scripts/update. Running it again will update it to the latest version provided by emoji-test-regex-pattern.

full-emoji-list.txt used in test was generated by running

[...document.querySelectorAll('td.chars')].map(td => td.textContent).join('\n') + '\n'

on https://unicode.org/emoji/charts/full-emoji-list.html.