(define (convert-csi-input port)
  (let ((char (read-char port)))
    (case char
      ((#\A) 'up)
      ((#\B) 'down)
      ((#\C) 'right)
      ((#\D) 'left)
      ((#\H) 'home)
      ((#\F) 'end)
      ((#\1) (if (eat!-char? #\~ port) 'home #f)) ; vt220 find / linux home
      ((#\2) (if (eat!-char? #\~ port) 'insert-here  #f)) ; numpad enter???
      ((#\3) (if (eat!-char? #\~ port)  #\del         #f))
      ((#\4) (if (eat!-char? #\~ port) 'end #f)) ; vt220 select / linux end
      ((#\5) (if (eat!-char? #\~ port) 'page-up      #f))
      ((#\6) (if (eat!-char? #\~ port) 'page-down    #f))
      (else ; unknown CSI input follow-up XXX just beep
       (print " CSI ")
       (print-safely char)
       unrecognized-input) )))

** Attachment added: "viper-c0-alfa.tar"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1468283/+attachment/4420409/+files/viper-c0-alfa.tar

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https://bugs.launchpad.net/bugs/1468283

Title:
  Wrong Escape Sequences for Home and End keys

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