anchor.diff:  !  file is structured as:
   !    keyword : value
   !  keywords:
  -!  - I: reference current intensity of e-beam [A]
  -!  - Ek: reference kinetic energy of electrons [keV]
  -!  - rad: reference radius [mm]
  +!  - I: reference current intensity [A] (optional)
  +!  - L: reference length of thick lens [m] (optional)
  +!  - R: reference radius [mm] (mandatory)
   !  comment line is headed by '#'
   !  coefficients are give with the following syntax:
   !  i j : value
  
positive.code: !  Last modified: 2019-02-25
  ! ================================================================================================ !
  subroutine cheby_parseInputLine(inLine, iLine, iErr)
    implicit none
  
    character(len=*), intent(in)    :: inLine
    integer,          intent(in)    :: iLine
    logical,          intent(inout) :: iErr
  end subroutine cheby_parseInputLine
  
  
  
negative.code:   use parpro
    use floatPrecision
    use crcoall
    use mod_alloc
    use numerical_constants, only : zero, one
    implicit none
  
    ! A.Mereghetti (CERN, BE-ABP-HSS)
  