CoolFormat deletes text if syntax does not match any presets.

[Enteleform]

If you attempt to run CoolFormat on a file whose syntax does not match any of the supported languages, all text in the document will be deleted.

  This can easily be resolved by implementing a simple verification process:

• activeSyntax = view.settings().get( "syntax" )
• check the found syntax against an array of valid syntaxes
• return if no matches are found

[akof1314]

Fixed it in https://github.com/akof1314/Sublime-CoolFormat/commit/837c83b775de2b0bf83ae278dcfba92505780dcb