open_namelist_asc.F90

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!SFX_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
!SFX_LIC This is part of the SURFEX software governed by the CeCILL-C licence
!SFX_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
!SFX_LIC for details. version 1.
!     #######################################################
      SUBROUTINE open_namelist_asc(HPROGRAM,KLUNAM,HFILE)
!     #######################################################
!
!!****  *OPEN_NAMELIST_ASC* - opens namelists files for surface (OFFLINE universe)
!!
!!    PURPOSE
!!    -------
!!
!!**  METHOD
!!    ------
!!
!!    EXTERNAL
!!    --------
!!
!!
!!    IMPLICIT ARGUMENTS
!!    ------------------
!!
!!    REFERENCE
!!    ---------
!!
!!
!!    AUTHOR
!!    ------
!!      V. Masson   *Meteo France*
!!
!!    MODIFICATIONS
!!    -------------
!!      Original    01/2004 
!       10/2014 : abort if namelist file does not exist E. Martin
!-------------------------------------------------------------------------------
!
!*       0.    DECLARATIONS
!              ------------
!
USE yomhook   ,ONLY : lhook,   dr_hook
USE parkind1  ,ONLY : jprb
USE modi_abor1_sfx
!
IMPLICIT NONE
!
!*       0.1   Declarations of arguments
!              -------------------------
!
 CHARACTER(LEN=6),  INTENT(IN)  :: HPROGRAM ! main program
INTEGER,           INTENT(OUT) :: KLUNAM   ! logical unit of namelist
 CHARACTER(LEN=28), INTENT(IN)  :: HFILE ! ASCII file to open
!
!*       0.2   Declarations of local variables
!              -------------------------------
!
 CHARACTER(LEN=28) :: YNAM
REAL(KIND=JPRB) :: ZHOOK_HANDLE
LOGICAL :: LLEXIST
!
!-------------------------------------------------------------------------------
!
!* reading of namelist
!  -------------------
!
IF (lhook) CALL dr_hook('OPEN_NAMELIST_ASC',0,zhook_handle)
IF (len_trim(hfile)>0) THEN
  ynam = hfile
ELSE
  ynam='OPTIONS.nam'
END IF
!
klunam=11
INQUIRE(file=ynam,exist=llexist)
IF (llexist) THEN
  OPEN(klunam,file=ynam,action='READ',form="FORMATTED",position="REWIND")
  ELSE 
    CALL abor1_sfx ('ERROR WHILE OPENING '//ynam//' THIS FILE IS MISSING'// &
                  ' IN THE RUN DIRECTORY')
ENDIF
IF (lhook) CALL dr_hook('OPEN_NAMELIST_ASC',1,zhook_handle)
!-------------------------------------------------------------------------------
!
END SUBROUTINE open_namelist_asc