raw ANSI sequence helpers for Go

 Package ansi provides raw ANSI sequence helpers for Go.
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 ANSI Writer
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   import "github.com/muesli/ansi"
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   w := ansi.Writer{Forward: os.Stdout}
   w.Write([]byte("\x1b[31mHello, world!\x1b[0m"))
   w.Close()
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 Compressor
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 The ANSI compressor eliminates unnecessary/redundant ANSI sequences.
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   import "github.com/muesli/ansi/compressor"
 .
   w := compressor.Writer{Forward: os.Stdout}
   w.Write([]byte("\x1b[31mHello, world!\x1b[0m"))
   w.Close()