anchor.diff:  open System.Text
   open System.Collections.Generic
   
  +/// [omit]
   let productName() = "FAKE"
   
   /// Returns if the string is null or empty
  
positive.code:     |> replaceF
      |> ReplaceFile fileName
  
  let LinuxLineBreaks = "\n"
  let WindowsLineBreaks = "\r\n"
  let MacLineBreaks = "\r"
  
  let ConvertTextToWindowsLineBreaks text = 
      text
      |> replace WindowsLineBreaks LinuxLineBreaks 
  
negative.code: /// Trims the given string with the DirectorySeparatorChar
  let inline trimSeparator (s:string) = s.TrimEnd Path.DirectorySeparatorChar
  
  /// Trims all special characters from a string.
  let inline trimSpecialChars (text:string) =
      text
        |> Seq.filter isLetterOrDigit
        |> Seq.filter (isUmlaut >> not)
        |> Seq.fold (fun (acc:string) c -> acc + string c) ""
  