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jmc |
1.2 |
C $Header: /u/gcmpack/MITgcm/pkg/mdsio/mdsio_read_meta.F,v 1.1 2007/10/22 13:16:29 jmc Exp $ |
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jmc |
1.1 |
C $Name: $ |
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#include "MDSIO_OPTIONS.h" |
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CBOP |
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C !ROUTINE: MDS_READ_META |
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C !INTERFACE: |
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SUBROUTINE MDS_READ_META( |
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I fileName, |
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O simulName, |
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O titleLine, |
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O filePrec, |
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U nDims, nFlds, nTimRec, |
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O dimList, fldList, timList, |
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O nRecords, fileIter, |
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I useCurrentDir, |
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I myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R MDS_READ_META |
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C | o Read the content of 1 meta file |
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C *==========================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C == Global variables / common blocks |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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C !INPUT PARAMETERS: |
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C fileName (string ) :: prefix of meta-file name |
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C nDims (integer) :: max size of array dimList (or =0 if not reading dimList) |
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C nFlds (integer) :: max size of array fldList (or =0 if not reading fldList) |
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C nTimRec (integer) :: max size of array timList (or =0 if not reading timList) |
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C useCurrentDir(logic):: always read from the current directory (even if |
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C "mdsioLocalDir" is set) |
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C myThid (integer) :: my Thread Id number |
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C |
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C !OUTPUT PARAMETERS: |
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C simulName (string) :: name of simulation (recorded in file) |
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C titleLine (string) :: title or any descriptive comments (in file) |
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C filePrec (integer) :: number of bits per word in data-file (32 or 64) |
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C nDims (integer) :: number of dimensions |
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C dimList (integer) :: array of dimensions |
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cC map2gl (integer) :: used for mapping tiled file to global file |
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C nFlds (integer) :: number of fields in "fldList" |
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C fldList (string) :: list of fields (names) stored in file |
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C nTimRec (integer) :: number of time-specification in "timList" |
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C timList (real) :: array of time-specifications (recorded in file) |
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C nRecords (integer) :: number of records |
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C fileIter (integer) :: time-step number (recorded in file) |
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C |
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CHARACTER*(*) fileName |
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CHARACTER*(*) simulName |
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CHARACTER*(*) titleLine |
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INTEGER filePrec |
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INTEGER nDims |
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INTEGER dimList(3,*) |
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c INTEGER map2gl(2) |
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INTEGER nFlds |
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CHARACTER*(8) fldList(*) |
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INTEGER nTimRec |
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_RL timList(*) |
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INTEGER nRecords |
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INTEGER fileIter |
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LOGICAL useCurrentDir |
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INTEGER myThid |
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CEOP |
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C !FUNCTIONS |
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jmc |
1.2 |
INTEGER IFNBLNK, ILNBLNK |
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EXTERNAL IFNBLNK, ILNBLNK |
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jmc |
1.1 |
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C !LOCAL VARIABLES: |
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jmc |
1.2 |
C i,j,ii :: loop indices |
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C iG,jG :: global tile indices |
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jmc |
1.1 |
C iL,pL,iLm :: length of character strings (temp. variables) |
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C nDimFil :: number of dimensions (in meta file) |
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C nFldFil :: number of fields in "fldList" (in meta file) |
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C nTimFil :: number of time-specification in "timList" (meta file) |
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jmc |
1.2 |
INTEGER i,j,ii |
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INTEGER iG,jG |
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INTEGER iL,pL,iLm |
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jmc |
1.1 |
INTEGER mUnit, errIO |
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INTEGER nDimFil, nFldFil, nTimFil |
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LOGICAL fileExist, globalFile |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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CHARACTER*(MAX_LEN_MBUF) lineBuf |
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CHARACTER*(MAX_LEN_FNAM) mFileName, pfName |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C-- Initialise output arguments |
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simulName = ' ' |
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titleLine = ' ' |
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filePrec = 0 |
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nRecords = 0 |
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fileIter = 0 |
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c map2gl(1) = 0 |
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c map2gl(2) = 1 |
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jmc |
1.2 |
DO j=1,nDims |
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DO i=1,3 |
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dimList(i,j) = 0 |
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jmc |
1.1 |
ENDDO |
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ENDDO |
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DO i=1,nFlds |
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fldList(i)= ' ' |
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ENDDO |
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DO i=1,nTimRec |
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timList(i) = 0. |
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ENDDO |
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C-- Initialise Temp Var. |
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fileExist = .FALSE. |
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globalFile = .FALSE. |
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nDimFil = 0 |
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nFldFil = 0 |
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nTimFil = 0 |
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C-- Only Master thread check for file, open & read ; others will |
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C return null argument ; sharing output needs to be done outside |
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C this S/R, using, e.g., common block (+ Master_thread + Barrier) |
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_BEGIN_MASTER( myThid ) |
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C Assign special directory |
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useCurrentDir = .FALSE. |
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iL = ILNBLNK(fileName) |
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pL = ILNBLNK( mdsioLocalDir ) |
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IF ( useCurrentDir .OR. pL.EQ.0 ) THEN |
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pfName = fileName |
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ELSE |
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WRITE(pfName,'(2A)') mdsioLocalDir(1:pL), fileName(1:iL) |
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ENDIF |
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pL = ILNBLNK( pfName ) |
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C-- Search for meta file: |
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C- look for meta-file = {fileName} |
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mFileName = fileName(1:iL) |
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iLm = iL |
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c INQUIRE( FILE=mFileName, EXIST=fileExist ) |
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IF ( .NOT.fileExist ) THEN |
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C- look for meta-file = {fileName}'.meta' |
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WRITE(mFileName,'(2A)') fileName(1:iL), '.meta' |
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iLm = iL+5 |
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INQUIRE( FILE=mFileName, EXIST=fileExist ) |
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ENDIF |
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IF ( fileExist ) THEN |
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globalFile = .TRUE. |
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ELSE |
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C- look for meta-file = {fileName}'.{iG}.{jG}.meta' |
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iG = 1+(myXGlobalLo-1)/sNx |
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jG = 1+(myYGlobalLo-1)/sNy |
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WRITE(mFileName,'(2A,I3.3,A,I3.3,A)') |
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& pfName(1:pL),'.',iG,'.',jG,'.meta' |
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iLm = pL+8+5 |
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INQUIRE( FILE=mFileName, EXIST=fileExist ) |
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ENDIF |
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IF ( .NOT.fileExist ) THEN |
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C- look for meta-file = {fileName}'.001.001.meta' |
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WRITE(mFileName,'(2A,I3.3,A,I3.3,A)') |
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& pfName(1:pL),'.',1,'.',1,'.meta' |
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iLm = pL+8+5 |
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INQUIRE( FILE=mFileName, EXIST=fileExist ) |
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ENDIF |
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IF ( .NOT.fileExist ) THEN |
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WRITE(msgBuf,'(4A)') 'WARNING >> MDS_READ_META: file: ', |
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& fileName(1:iL), '.meta , ', mFileName(1:iLm) |
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c & fileName(1:iL), ' , ', mFileName(1:iLm) |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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WRITE(msgBuf,'(A)') |
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& 'WARNING >> MDS_READ_META: Files DO not exist' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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nFldFil = -1 |
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ELSE |
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C-- File exist |
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IF ( debugLevel .GE. debLevA ) THEN |
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WRITE(msgBuf,'(2A)') ' MDS_READ_META: opening file: ', |
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& mFileName(1:iLm) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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ENDIF |
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C- Assign a free unit number as the I/O channel for this subroutine |
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CALL MDSFINDUNIT( mUnit, myThid ) |
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C- Open meta-file |
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OPEN( mUnit, FILE=mFileName, STATUS='old', |
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& FORM='formatted', IOSTAT=errIO ) |
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c write(0,*) 'errIO=',errIO |
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IF ( errIO .NE. 0 ) THEN |
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WRITE(msgBuf,'(A,A)') 'MDS_READ_META: Unable to open file: ', |
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& mFileName(1:iLm) |
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CALL PRINT_ERROR( msgBuf , myThid ) |
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STOP 'ABNORMAL END: S/R MDS_READ_META' |
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ENDIF |
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C- Read the meta file in the same way as S/R OPEN_COPY_DATA_FILE |
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C (which seems to be works on many platforms): |
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DO WHILE ( .TRUE. ) |
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READ( mUnit, FMT='(A)', END=1001 ) lineBuf |
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C-- Extract information from buffer: "lineBuf" |
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iL = ILNBLNK(lineBuf) |
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C- Read simulation name (stored in file) |
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IF ( iL.GE.22 .AND. lineBuf(1:14).EQ.' simulation = ' ) THEN |
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ii = LEN(simulName) |
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c IF ( ii.LT.iL-21 ) print 'warning: truncate simulName' |
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ii = MIN(ii+17,iL-4) |
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simulName = lineBuf(18:ii) |
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iL = 0 |
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ENDIF |
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C- Read the number of dimensions |
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IF ( nDimFil.EQ.0 .AND. |
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& iL.GE.15 .AND. lineBuf(1:9).EQ.' nDims = ' ) THEN |
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READ(lineBuf(12:iL),'(I3)') nDimFil |
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IF ( nDimFil.GT.nDims .AND. nDims.GE.1 ) THEN |
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WRITE(msgBuf,'(2(A,I3),A)') ' MDS_READ_META: nDims=', |
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& nDimFil, ' too large ( >', nDims, ' )' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_READ_META' |
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ENDIF |
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iL = 0 |
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ENDIF |
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C- Read list of dimensions |
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IF ( nDims.GE.1 .AND. nDimFil.GE.1 .AND. |
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& iL.GE.11 .AND. lineBuf(1:11).EQ.' dimList = ' ) THEN |
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C- For each dimension, read the following: |
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C 1 global size (ie. the size of the global dimension of all files) |
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C 2 global start (ie. the global position of the start of this file) |
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C 3 global end (ie. the global position of the end of this file) |
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jmc |
1.2 |
DO j=1,nDimFil |
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c READ( mUnit, FMT='(3(1X,I5))', ERR=1002, END=1002 ) |
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c & (dimList(i,j),i=1,3) |
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C- This is to accomodate with the 2 versions of meta file: |
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READ( mUnit, FMT='(A)', END=1001 ) lineBuf |
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ii = IFNBLNK(lineBuf) |
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IF ( ii.GT.6 ) THEN |
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C Old version (S/R MDSWRITEMETA, file mdsio_writemeta.F): |
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C start each line with 10 blanks. |
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READ(lineBuf, FMT='(9X,3(1X,I5))', ERR=1002, END=1002 ) |
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& (dimList(i,j),i=1,3) |
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ELSE |
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C New version (S/R MDS_WRITE_META, file mdsio_write_meta.F): |
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C without starting blanks. |
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READ(lineBuf, FMT='(3(1X,I5))', ERR=1002, END=1002 ) |
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& (dimList(i,j),i=1,3) |
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ENDIF |
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jmc |
1.1 |
ENDDO |
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READ( mUnit, FMT='(A)', END=1001 ) lineBuf |
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iL = 0 |
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ENDIF |
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C- only write if different from default: |
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c IF ( map2gl(1).NE.0 .OR. map2gl(2).NE.1 ) THEN |
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c WRITE(mUnit,'(1X,2(A,I5),A)') 'map2glob = [ ', |
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c & map2gl(1),',',map2gl(2),' ];' |
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c ENDIF |
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C- Read the precision of the file |
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IF ( iL.GE.20 .AND. lineBuf(1:12).EQ.' dataprec = ' ) THEN |
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IF ( lineBuf(16:22).EQ. 'float32' ) THEN |
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filePrec = precFloat32 |
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ELSEIF ( lineBuf(16:22).EQ. 'float64' ) THEN |
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filePrec = precFloat64 |
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ELSE |
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WRITE(msgBuf,'(A)') ' MDS_READ_META: invalid dataprec' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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CALL PRINT_ERROR(lineBuf, myThid ) |
| 278 |
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STOP 'ABNORMAL END: S/R MDS_READ_META' |
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ENDIF |
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iL = 0 |
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ENDIF |
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C- Read (old format) precision of the file |
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IF ( filePrec.EQ.0 .AND. |
| 284 |
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& iL.GE.18 .AND. lineBuf(1:10).EQ.' format = ' ) THEN |
| 285 |
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IF ( lineBuf(14:20).EQ. 'float32' ) THEN |
| 286 |
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filePrec = precFloat32 |
| 287 |
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ELSEIF ( lineBuf(14:20).EQ. 'float64' ) THEN |
| 288 |
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filePrec = precFloat64 |
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ELSE |
| 290 |
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WRITE(msgBuf,'(A)') ' MDS_READ_META: invalid dataprec' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
| 292 |
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CALL PRINT_ERROR(lineBuf, myThid ) |
| 293 |
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STOP 'ABNORMAL END: S/R MDS_READ_META' |
| 294 |
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ENDIF |
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iL = 0 |
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ENDIF |
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C- Read the number of records |
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IF ( nRecords.EQ.0 .AND. |
| 300 |
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& iL.GE.20 .AND. lineBuf(1:12).EQ.' nrecords = ' ) THEN |
| 301 |
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READ(lineBuf(15:iL),'(I5)') nRecords |
| 302 |
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iL = 0 |
| 303 |
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ENDIF |
| 304 |
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| 305 |
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C- Read recorded iteration number |
| 306 |
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IF ( fileIter.EQ.0 .AND. iL.GE.31 .AND. |
| 307 |
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& lineBuf(1:18).EQ.' timeStepNumber = ' ) THEN |
| 308 |
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READ(lineBuf(21:iL),'(I10)') fileIter |
| 309 |
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iL = 0 |
| 310 |
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ENDIF |
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C- Read list of Time records |
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IF ( nTimFil.EQ.0 .AND. |
| 314 |
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& iL.GE.42 .AND. lineBuf(1:16).EQ.' /* modelTime = ' ) THEN |
| 315 |
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C note: format might change once we have a better idea of what will |
| 316 |
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C be the time-information to write. |
| 317 |
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C for now, comment out this line for rdmds (i.e.: between /* */) |
| 318 |
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nTimFil = INT((iL-17-5)/20) |
| 319 |
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IF ( nTimRec.GE.1 ) THEN |
| 320 |
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IF ( nTimFil.GT.nTimRec ) THEN |
| 321 |
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WRITE(msgBuf,'(2(A,I6),A)') ' MDS_READ_META: nTimRec=', |
| 322 |
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& nTimFil, ' too large ( >', nTimRec, ' )' |
| 323 |
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CALL PRINT_ERROR( msgBuf, myThid ) |
| 324 |
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STOP 'ABNORMAL END: S/R MDS_READ_META' |
| 325 |
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ENDIF |
| 326 |
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READ(lineBuf(18:iL-5),'(1P20E20.12)',ERR=1003) |
| 327 |
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|
& (timList(i),i=1,nTimFil) |
| 328 |
|
|
ENDIF |
| 329 |
|
|
iL = 0 |
| 330 |
|
|
ELSEIF ( iL.GE.8 .AND. lineBuf(1:4).EQ.' /* ' ) THEN |
| 331 |
|
|
IF ( lineBuf(iL-2:iL).EQ.' */' ) THEN |
| 332 |
|
|
C- Read title or comments (ignored by rdmds) |
| 333 |
|
|
ii = LEN(titleLine) |
| 334 |
|
|
c IF ( ii.LT.iL-7 ) print 'warning: truncate titleLine' |
| 335 |
|
|
ii = MIN(ii+4,iL-3) |
| 336 |
|
|
titleLine = lineBuf(5:ii) |
| 337 |
|
|
iL = 0 |
| 338 |
|
|
ENDIF |
| 339 |
|
|
ENDIF |
| 340 |
|
|
|
| 341 |
|
|
C- Read number of Fields |
| 342 |
|
|
IF ( nFldFil.EQ.0 .AND. |
| 343 |
|
|
& iL.GE.16 .AND. lineBuf(1:9).EQ.' nFlds = ' ) THEN |
| 344 |
|
|
READ(lineBuf(12:iL),'(I4)') nFldFil |
| 345 |
|
|
IF ( nFldFil.GT.nFlds .AND. nFlds.GE.1 ) THEN |
| 346 |
|
|
WRITE(msgBuf,'(2(A,I6),A)') ' MDS_READ_META: nFlds=', |
| 347 |
|
|
& nFldFil, ' too large ( >', nFlds, ' )' |
| 348 |
|
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 349 |
|
|
STOP 'ABNORMAL END: S/R MDS_READ_META' |
| 350 |
|
|
ENDIF |
| 351 |
|
|
iL = 0 |
| 352 |
|
|
ENDIF |
| 353 |
|
|
|
| 354 |
|
|
C- Read list of Fields |
| 355 |
|
|
IF ( nFldFil.GE.1 .AND. nFlds.GE.1 .AND. |
| 356 |
|
|
& iL.GE.11 .AND. lineBuf(1:11).EQ.' fldList = ' ) THEN |
| 357 |
jmc |
1.2 |
DO j=1,nFldFil,20 |
| 358 |
jmc |
1.1 |
READ( mUnit, FMT='(20(2X,A8,1X))', ERR=1004, END=1004 ) |
| 359 |
jmc |
1.2 |
& (fldList(i),i=j,MIN(nFldFil,j+19)) |
| 360 |
jmc |
1.1 |
ENDDO |
| 361 |
|
|
READ( mUnit, FMT='(A)', END=1001 ) lineBuf |
| 362 |
|
|
iL = 0 |
| 363 |
|
|
ENDIF |
| 364 |
|
|
|
| 365 |
|
|
C-- End of reading file line per line |
| 366 |
|
|
ENDDO |
| 367 |
|
|
1004 CONTINUE |
| 368 |
|
|
WRITE(msgBuf,'(2(A,I4),A)') |
| 369 |
|
|
& ' MDS_READ_META: error reading Fields: nFlds=', |
| 370 |
jmc |
1.2 |
& nFldFil, ' , j=', j |
| 371 |
jmc |
1.1 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 372 |
|
|
STOP 'ABNORMAL END: S/R MDS_READ_META' |
| 373 |
|
|
1003 CONTINUE |
| 374 |
|
|
WRITE(msgBuf,'(2(A,I4),A)') |
| 375 |
|
|
& ' MDS_READ_META: error reading Model-Time: nTimRec=', |
| 376 |
|
|
& nTimFil, ' , iL=', iL |
| 377 |
|
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 378 |
|
|
CALL PRINT_ERROR(lineBuf, myThid ) |
| 379 |
|
|
STOP 'ABNORMAL END: S/R MDS_READ_META' |
| 380 |
|
|
1002 CONTINUE |
| 381 |
jmc |
1.2 |
WRITE(msgBuf,'(3(A,I3),A)') |
| 382 |
jmc |
1.1 |
& ' MDS_READ_META: error reading Dim-List: nDims=', |
| 383 |
jmc |
1.2 |
& nDimFil, ' , j=', j, ' , ii=', ii |
| 384 |
jmc |
1.1 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 385 |
jmc |
1.2 |
CALL PRINT_ERROR(lineBuf, myThid ) |
| 386 |
jmc |
1.1 |
STOP 'ABNORMAL END: S/R MDS_READ_META' |
| 387 |
|
|
1001 CONTINUE |
| 388 |
|
|
|
| 389 |
|
|
C- Close meta-file |
| 390 |
|
|
CLOSE(mUnit) |
| 391 |
|
|
|
| 392 |
|
|
C- end if block: file exist |
| 393 |
|
|
ENDIF |
| 394 |
|
|
|
| 395 |
|
|
_END_MASTER( myThid ) |
| 396 |
|
|
|
| 397 |
|
|
C- Update Arguments with values read from file |
| 398 |
|
|
nDims = nDimFil |
| 399 |
|
|
nFlds = nFldFil |
| 400 |
|
|
nTimRec = nTimFil |
| 401 |
|
|
|
| 402 |
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 403 |
|
|
|
| 404 |
|
|
RETURN |
| 405 |
|
|
END |
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