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gist: 211478 Download_button fork
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strlen.rb #
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# A patch that let strings
#   * return number of characters by String#jlength
#   * return number of bytes by String#bytesize
# regardless of Ruby version
#
# by H.Hiro(Maraigue)
# main@hhiro.net
 
if RUBY_VERSION >= "1.9.0"
  class String
    alias :jlength :length
  end
else
  require "jcode"
  class String
    alias :bytesize :length
  end
end