mirror of https://github.com/ecmwf/eccodes.git
63 lines
1.7 KiB
Fortran
63 lines
1.7 KiB
Fortran
! (C) Copyright 2005- ECMWF.
|
|
!
|
|
! This software is licensed under the terms of the Apache Licence Version 2.0
|
|
! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
|
|
!
|
|
! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
|
|
! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
|
|
!
|
|
!
|
|
! Description:
|
|
! How to use keys_iterator to get all the available
|
|
! keys in a GRIB message.
|
|
!
|
|
!
|
|
!
|
|
program keys_iterator
|
|
use eccodes
|
|
implicit none
|
|
character(len=20) :: name_space
|
|
integer :: kiter, ifile, igrib, iret
|
|
character(len=256) :: key
|
|
character(len=256) :: value
|
|
character(len=512) :: all1
|
|
integer :: grib_count
|
|
|
|
call codes_open_file(ifile, &
|
|
'../../data/regular_latlon_surface.grib1', 'r')
|
|
|
|
! Loop on all the messages in a file.
|
|
|
|
call codes_grib_new_from_file(ifile, igrib, iret)
|
|
grib_count = 0
|
|
do while (iret /= CODES_END_OF_FILE)
|
|
|
|
grib_count = grib_count + 1
|
|
write (*, *) '-- GRIB N. ', grib_count, ' --'
|
|
|
|
! valid name_spaces are ls and mars
|
|
name_space = 'ls'
|
|
|
|
call codes_keys_iterator_new(igrib, kiter, name_space)
|
|
|
|
do
|
|
call codes_keys_iterator_next(kiter, iret)
|
|
|
|
if (iret .ne. CODES_SUCCESS) exit !terminate the loop
|
|
|
|
call codes_keys_iterator_get_name(kiter, key)
|
|
call codes_get(igrib, trim(key), value)
|
|
all1 = trim(key)//' = '//trim(value)
|
|
write (*, *) trim(all1)
|
|
|
|
end do
|
|
|
|
call codes_keys_iterator_delete(kiter)
|
|
call codes_release(igrib)
|
|
call codes_grib_new_from_file(ifile, igrib, iret)
|
|
end do
|
|
|
|
call codes_close_file(ifile)
|
|
|
|
end program keys_iterator
|