Can't detect EOF

[JonF]

OK, this is insane. The following code:

#include <FileConstants.au3>

$InHandle = FileOpen('C:\Temporary\Deprecated0.html', $FO_READ)
$OutHandle = FileOpen('C:\Temporary\Deprecated.html', $FO_OVERWRITE)

  While True
    $Line = FileReadLine($InHandle)
    If @error = -1 Then ExitLoop
    FileWriteLine($OutHandle, $Line)
  WEnd

FileClose($InHandle)
FileClose($OutHandle)

With the attached file (produced by Pandoc from an MD file) produces a file over 1 Gb with infinite blank lines at the end. 

Deprecated0.html

[Jos]

Works fine for me, so your case must be different.
You are sure the code is exactly what you use to test with?

Edited 17 hours ago by Jos

[donnyh13]

I also tried your example, with only a resulting 1kb file.

My only suggestion would be to replace

If @error = -1 Then ExitLoop

With

If @error Then ExitLoop

Being that you would have an infinite loop on your hands if something else failed when reading.