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max-power/emoji_flag.rb

Created April 6, 2026 17:29
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Emojiflag
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emoji_flag.rb
module Emoji
REGIONAL_OFFSET = 127397
COUNTRY_CODE_RE = /\A[A-Z]{2}\z/
module_function
def flag(input)
return "" unless COUNTRY_CODE_RE.match?(input)
input.codepoints.map { |c| c + REGIONAL_OFFSET }.pack("U*")
end
end
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