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ADAS Subroutine d7data


       SUBROUTINE D7DATA( IUNIT  , NDLEV  , NDTRN ,
     &                    TITLED , IZ     , IZ0   , IZ1   , BWNO  ,
     &                    IL     ,
     &                    IA     , CSTRGA , ISA   , ILA   , XJA   , WA
     &                  )
C-----------------------------------------------------------------------
C
C  ****************** FORTRAN77 SUBROUTINE: D7DATA *********************
C
C  PURPOSE:  TO FETCH LEVEL DATA FROM INPUT COPASE DATA SET.
C
C  CALLING PROGRAM: ADAS407
C
C  DATA:
C           THE UNITS USED IN THE DATA FILE ARE TAKEN AS FOLLOWS:
C
C           IONISATION POTENTIAL: WAVE NUMBER (CM-1)
C           INDEX LEVEL ENERGIES: WAVE NUMBER (CM-1)
C
C
C  SUBROUTINE:
C
C  INPUT : (I*4)  IUNIT   = UNIT TO WHICH INPUT FILE IS ALLOCATED
C  INPUT : (I*4)  NDLEV   = MAXIMUM NUMBER OF LEVELS THAT CAN BE READ
C  INPUT : (I*4)  NDTRN   = MAX. NUMBER OF TRANSITIONS THAT CAN BE READ
C
C  OUTPUT: (C*3)  TITLED  = ELEMENT SYMBOL.
C  OUTPUT: (I*4)  IZ      =  RECOMBINED ION CHARGE READ
C  OUTPUT: (I*4)  IZ0     =         NUCLEAR CHARGE READ
C  OUTPUT: (I*4)  IZ1     = RECOMBINING ION CHARGE READ
C                           (NOTE: IZ1 SHOULD EQUAL IZ+1)
C  OUTPUT: (R*8)  BWNO    = IONISATION POTENTIAL (CM-1)
C
C  OUTPUT: (I*4)  IL      = INPUT DATA FILE: NUMBER OF ENERGY LEVELS
C
C  OUTPUT: (I*4)  IA()    = ENERGY LEVEL INDEX NUMBER
C  OUTPUT: (C*18) CSTRGA()= NOMENCLATURE/CONFIGURATION FOR LEVEL 'IA()'
C  OUTPUT: (I*4)  ISA()   = MULTIPLICITY FOR LEVEL 'IA()'
C                           NOTE: (ISA-1)/2 = QUANTUM NUMBER (S)
C  OUTPUT: (I*4)  ILA()   = QUANTUM NUMBER (L) FOR LEVEL 'IA()'
C  OUTPUT: (R*8)  XJA()   = QUANTUM NUMBER (J-VALUE) FOR LEVEL 'IA()'
C                           NOTE: (2*XJA)+1 = STATISTICAL WEIGHT
C  OUTPUT: (R*8)  WA()    = ENERGY RELATIVE TO LEVEL 1 (CM-1) FOR LEVEL
C                           'IA()'
C
C
C          (I*4)  I4UNIT  = FUNCTION (SEE ROUTINE SECTION BELOW)
C          (I*4)  I       = GENERAL USE.
C          (I*4)  IABT    = RETURN CODE FROM 'R8FCTN' (0 => NO ERROR)
C                           OR FROM INTERROGATION OF 'C7'
C          (I*4)  IFIRST  = BYTE POSITION OF START OF NUMBER IN BUFFER
C          (I*4)  ILAST   = BYTE POSITION OF END   OF NUMBER IN BUFFER
C          (I*4)  IWORD   = THE WORD POSITION OF THE REQUIRED DATA IN
C                           A STRING TO BE INTERROGATED BY XXWORD.
C          (I*4)  J       = GENERAL USE.
C          (I*4)  LENCST  = BYTE LENGTH OF STRING CSTRGA()
C          (I*4)  NWORDS  = NUMBER OF NUMBERS STORED IN BUFFER
C          (I*4)  ILINE   = ENERGY LEVEL INDEX FOR CURRENT LINE
C          (I*4)  IRECL   = RECORD LENGTH OF INPUT DATASET (<=128)
C
C          (C*7)  C7      = USED TO PARSE VALUE FOR XJA()
C          (C*7)  CDELIM  = DELIMITERS FOR INPUT OF DATA FROM HEADERS
C          (C*18) C18     = USED TO PARSE VALUE TO CSTRGA()
C          (C*80) CLINE   = CURRENT ENERGY LEVEL INDEX PARAMETER LINE
C          (C*128)BUFFER  = GENERAL STRING BUFFER STORAGE
C
C          (L*4)  LDATA   = IDENTIFIES  WHETHER  THE END OF AN  INPUT
C                           SECTION IN THE DATA SET HAS BEEN LOCATED.
C                           (.TRUE. => END OF SECTION REACHED)
C
C ROUTINES:
C          ROUTINE    SOURCE    BRIEF DESCRIPTION
C          -------------------------------------------------------------
C          XXWORD     ADAS      EXTRACT POSITION OF NUMBER IN BUFFER
C          I4UNIT     ADAS      FETCH UNIT NUMBER FOR OUTPUT OF MESSAGES
C          R8FCTN     ADAS      CONVERTS FROM CHARACTER TO REAL VARIABLE
C
C
C ROUTINES: NONE
C
C AUTHOR:  H. P. SUMMERS, JET
C          K1/1/47
C          JET EXT. 4941
C
C DATE:    19/05/94
C
C UPDATE:  12/07/94 - H. P. SUMMERS - ALLOWED DUMMY BARE NUCLEUS FILE
C                                     TO BE READ BY DETECTING IZ0=IZ
C
C UNIX-IDL PORT:
C	   WILLIAM OSBORN, TESSELLA SUPPORT SERVICES PLC.
C
C DATE:    25TH MARCH 1996
C
C VERSION: 1.1				DATE: 25-03-96
C MODIFIED: WILLIAM OSBORN
C	    - FIRST VERSION.
C
C VERSION: 1.2				DATE: 09-09-96
C MODIFIED: WILLIAM OSBORN / PAUL BRIDEN
C           - INSTEAD OF USING FORMAT SPECIFIER F15.0 WHEN
C             INTERNALLY READING A FLOATING POINT NUMBER,
C             CREATE THE APPROPRIATE SPECIFIER WITHIN CFORM7 
C             AND USE THIS.
C
C-----------------------------------------------------------------------
C-----------------------------------------------------------------------
      CHARACTER*(*)       CSTRGA(NDLEV)
      CHARACTER*3         TITLED
      INTEGER             IA(NDLEV),   IL,          ILA(NDLEV)
      INTEGER             ISA(NDLEV),  IUNIT,       IZ,          IZ0
      INTEGER             IZ1,         NDLEV,       NDTRN
      REAL*8              BWNO,        WA(NDLEV),   XJA(NDLEV)
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