mastodon/app/lib/emoji.rb

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Ruby
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# frozen_string_literal: true
require 'singleton'
class Emoji
include Singleton
def initialize
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data = Oj.load(File.open(Rails.root.join('lib', 'assets', 'emoji.json')))
@map = {}
data.each do |_, emoji|
keys = [emoji['shortname']] + emoji['aliases']
unicode = codepoint_to_unicode(emoji['unicode'])
keys.each do |key|
@map[key] = unicode
end
end
end
def unicode(shortcode)
@map[shortcode]
end
def names
@map.keys
end
private
def codepoint_to_unicode(codepoint)
if codepoint.include?('-')
codepoint.split('-').map(&:hex).pack('U*')
else
[codepoint.hex].pack('U')
end
end
end