Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
Kconv#guess
Kconv.guess(str) => encoding
ext/nkf/lib/kconv.rb
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# File tmp/rubies/ruby-3.3.0/ext/nkf/lib/kconv.rb, line 141
def guess(str)
::NKF::guess(str)
end
Guess input encoding by NKF.guess