class Karamzin::String
Public Instance Methods
downcase(str)
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# File lib/karamzin/string.rb, line 8 def downcase(str) if str.match /[а-яА-яёЁ].*/ self.mb_chars.downcase.to_s end end
uppercase(str)
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# File lib/karamzin/string.rb, line 3 def uppercase(str) if str.match /[а-яА-яёЁ].*/ self.mb_chars.uppercase.to_s end end