module UTF8Utils

# File lib/whimsy/utf8-utils.rb, line 12
def self.repair(src, dst, verbose=false)
  opts = {undef: :replace, invalid: :replace}
  ec1 = Encoding::Converter.new('utf8-softbank', 'UTF-8', **opts)
  ec2 = Encoding::Converter.new('iso-8859-1', 'UTF-8', **opts)

  open(dst,'w:utf-8') do |w|
    open(src,'rb').each do |l|
      o = ec1.convert(l) # initial conversion try
      unless o == l
        if o.include? UTF8_REPLACE # something did not convert
          o = ec2.convert(l) # try another encoding
        end
        if verbose
          puts l
          puts o
          puts ''
        end
      end
      w.write o
    end
  end
end