command_line.F90

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!! Copyright (C) 2002-2006 M. Marques, A. Castro, A. Rubio, G. Bertsch
!!
!! This program is free software; you can redistribute it and/or modify
!! it under the terms of the GNU General Public License as published by
!! the Free Software Foundation; either version 2, or (at your option)
!! any later version.
!!
!! This program is distributed in the hope that it will be useful,
!! but WITHOUT ANY WARRANTY; without even the implied warranty of
!! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
!! GNU General Public License for more details.
!!
!! You should have received a copy of the GNU General Public License
!! along with this program; if not, write to the Free Software
!! Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
!! 02110-1301, USA.
!!
 
#include "global.h"
 
! ---------------------------------------------------------
!
!
! ---------------------------------------------------------
module command_line_oct_m
 
  use string_oct_m
  use iso_c_binding
 
  implicit none
 
  private
  public :: &
    getopt_init,                 &
    getopt_end,                  &
    getopt_octopus,              &
    getopt_casida_spectrum,      &
    getopt_center_geom,          &
    getopt_dielectric_function,  &
    getopt_vibrational,          &
    getopt_xyz_anim,             &
    getopt_oscillator_strength,  &
    getopt_harmonic_spectrum,    &
    getopt_help,                 &
    getopt_photoelectron_spectrum
 
 
  ! ---------------------------------------------------------
  ! First, the public interfaces.
 
 
  interface
    subroutine getopt_casida_spectrum
      implicit none
    end subroutine getopt_casida_spectrum
 
    subroutine getopt_center_geom
      implicit none
    end subroutine getopt_center_geom
 
    subroutine getopt_dielectric_function
      implicit none
    end subroutine getopt_dielectric_function
 
    subroutine getopt_vibrational(mode)
      implicit none
      integer, intent(inout) :: mode
    end subroutine getopt_vibrational
 
    subroutine getopt_xyz_anim
      implicit none
    end subroutine getopt_xyz_anim
 
    subroutine getopt_oscillator_strength(mode, omega, searchinterval, &
      order, nresonances, nfrequencies, time, &
      l, m, damping, file)
      use iso_c_binding
      implicit none
      integer,          intent(inout) :: mode
      real(c_double),   intent(inout) :: omega
      real(c_double),   intent(inout) :: searchinterval
      integer,          intent(inout) :: order, nresonances, nfrequencies
      real(c_double),   intent(inout) :: time
      integer,          intent(inout) :: l, m
      real(c_double),   intent(inout) :: damping
      character(kind=c_char), intent(inout) :: file(*)
    end subroutine getopt_oscillator_strength
 
    subroutine getopt_harmonic_spectrum(w0, m, ar, x, y, z, pol) bind(c)
      use iso_c_binding
      implicit none
      real(c_double)           , intent(inout) :: w0
      integer                  , intent(inout) :: m
      integer                  , intent(inout) :: ar
      character(kind=c_char)   , intent(inout) :: pol(*)
      real(c_double)           , intent(inout) :: x
      real(c_double)           , intent(inout) :: y
      real(c_double)           , intent(inout) :: z
    end subroutine getopt_harmonic_spectrum
 
    subroutine getopt_help(mode, name)
      use iso_c_binding
      implicit none
      character(kind=c_char), intent(inout) :: mode(*)
      character(kind=c_char), intent(inout) :: name(*)
    end subroutine getopt_help
 
    subroutine getopt_photoelectron_spectrum(estep, espan, &
      thstep, thspan, phstep, phspan, pol, center, pvec, integrate)
      use iso_c_binding
      implicit none
      real(c_double), intent(inout) :: estep
      real(c_double), intent(inout) :: espan(2)
      real(c_double), intent(inout) :: thstep
      real(c_double), intent(inout) :: thspan(2)
      real(c_double), intent(inout) :: phstep
      real(c_double), intent(inout) :: phspan(2)
      real(c_double), intent(inout) :: pol(3)
      real(c_double), intent(inout) :: center(3)
      real(c_double), intent(inout) :: pvec(3)
      integer, intent(inout) :: integrate
    end subroutine getopt_photoelectron_spectrum
 
  end interface
 
  ! ---------------------------------------------------------
 
  interface
    subroutine set_number_clarg(argc)
      implicit none
      integer, intent(in) :: argc
    end subroutine set_number_clarg
 
    subroutine set_clarg(i, argstring) bind(c)
      use iso_c_binding
      implicit none
      integer, intent(in) :: i
      character(kind=c_char), intent(in) :: argstring(*)
    end subroutine set_clarg
 
    subroutine clean_clarg()
      implicit none
    end subroutine clean_clarg
 
    integer(c_int) function clarg_is_set() bind(c)
      use iso_c_binding
      implicit none
    end function clarg_is_set
  end interface
 
 
contains
 
  subroutine getopt_octopus(config_str)
    character(len=*), intent(in) :: config_str
    interface
      subroutine getopt_octopus_low(config_str) bind(c, name='getopt_octopus')
        use iso_c_binding
        implicit none
        character(kind=c_char), intent(in) :: config_str(*)
      end subroutine getopt_octopus_low
    end interface
 
    call getopt_octopus_low(string_f_to_c(config_str))
  end subroutine getopt_octopus
 
  ! ---------------------------------------------------------
  subroutine getopt_init(ierr)
    integer, intent(out) :: ierr
 
    integer :: argc, i
    character(len=100), allocatable :: argstring(:)
 
    ! Arguments may already have been set from outside, e.g. by the Python interface
    if (clarg_is_set() /= 0) then
      ierr = 0
      return
    end if
 
    argc = command_argument_count()
    allocate(argstring(0:argc))
    call set_number_clarg(argc)
    do i = 0, argc
      call get_command_argument(i, argstring(i))
      call set_clarg(i, string_f_to_c(argstring(i)))
    end do
    deallocate(argstring)
    ierr = 0
  end subroutine getopt_init
 
 
  subroutine getopt_end
    call clean_clarg()
  end subroutine getopt_end
 
end module command_line_oct_m
 
 
 
!! Local Variables:
!! mode: f90
!! coding: utf-8
!! End: