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progress_bar

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Command-line progress bars and spinners.

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progress_bar lib progress_bar formatter.ex
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lib/progress_bar/formatter.ex 

defmodule ProgressBar.Formatter do

  # This may become ANSI.IO.clear_line sometime after Elixir 1.1.0:

  # https://github.com/elixir-lang/elixir/pull/3755

  @ansi_clear_line "\e[2K"



  def write(format, bar, suffix \\ "") do

    IO.write [

      @ansi_clear_line, # So a shorter line can replace a previous, longer line.

      "\r", # Back to beginning of line.

      format[:left],

      bar,

      format[:right],

      suffix,

    ]

  end

end