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code/NcdfUtil/perl/ncCodeRead
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628
code/NcdfUtil/perl/ncCodeRead
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@ -0,0 +1,628 @@
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#!/usr/bin/perl -w
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#------------------------------------------------------------------------------
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# Harvard University Atmospheric Chemistry Modeling Group !
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#------------------------------------------------------------------------------
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#BOP
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#
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# !MODULE: ncCodeRead
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#
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# !DESCRIPTION: This Perl script automatically creates a Fortran subroutine
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# that reads data and attributes from a netCDF file. The Fortran subroutine
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# (named READ\_FROM\_NETCDF\_FILE) contains calls to the proper NcdfUtilities
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# library routines.
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#\\
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#\\
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# !USES:
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#
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require 5.003; # Need this version of Perl or newer
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use English; # Use English language
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use Carp; # Get detailed error messages
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use strict 'refs'; # Do not allow symbolic references
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use strict 'subs'; # Treat all barewords as syntax errors
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use StrTrim qw( &trim
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&splitLine
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&extractFile ); # Get string handling routines
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#
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# !PRIVATE MEMBER FUNCTIONS:
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# &readRcFile($)
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# &writeFortranVars($@)
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# &writeFortranCalls($@)
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#
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# !PUBLIC MEMBER FUNCTIONS:
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# &main()
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#
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# !PUBLIC DATA MEMBERS:
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#
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$F_ID = ""; # netCDF file ID
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%F_DIMS = (); # Hash to store Fortran dim values
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#
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# !CALLING SEQUENCE:
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# ncCodeCreate RESOURCE-FILE-NAME
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#
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# !REMARKS:
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# Some hand-editing of the output Fortran subroutine may be necessary.
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#
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# !REVISION HISTORY:
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# 30 Jan 2012 - R. Yantosca - Initial version
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# 31 Jan 2012 - R. Yantosca - Minor edits for consistency
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# 07 Mar 2012 - R. Yantosca - Minor fix, ignore comment lines
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# 26 Mar 2012 - R. Yantosca - Now echo info about the file I/O to stdout
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#EOP
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#------------------------------------------------------------------------------
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# Harvard University Atmospheric Chemistry Modeling Group !
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#------------------------------------------------------------------------------
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#BOP
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#
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# !IROUTINE: readRcFile
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#
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# !DESCRIPTION: Routine readRcFile reads the resource file which defines
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# the variables and attributes to be written to the netCDF file.
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#\\
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#\\
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# !INTERFACE:
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#
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sub readRcFile($) {
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#
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# !INPUT PARAMETERS:
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#
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# $fileName : Input file that describes the netCDF file
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my ( $fileName ) = @_;
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#
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# !CALLING SEQUENCE:
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# &readRcFile( RESOURCE-FILE-NAME );
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#
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# !REVISION HISTORY:
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# 30 Jan 2012 - R. Yantosca - Initial version
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# 07 Mar 2012 - R. Yantosca - Minor fix, ignore comment lines
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#EOP
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#------------------------------------------------------------------------------
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#BOC
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#
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# !LOCAL VARIABLES:
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#
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my $cmdFile = "";
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my $line = "";
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my @lines = ();
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my $name = "";
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#--------------------------------------------------
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# Read variable settings from the resource file
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#--------------------------------------------------
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open( I, "<$fileName" ) or die "Cannot open $fileName!\n";
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chomp( @lines = <I> );
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close( I );
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#--------------------------------------------------
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# Write Fortran commands to the output file
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#--------------------------------------------------
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# Pre-get a few quantities before creating the
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# output file with the fortran code
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foreach $line ( @lines ) {
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# Skip comment lines
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if ( !( substr( $line, 0, 1 ) eq '#' ) ) {
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# Name of output file w/ Fortran code
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if ( $line =~ 'Fortran Read File' ) {
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( $name, $cmdFile ) = &splitLine( $line, '=' );
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}
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# NetCDF file ID (aka filehandle)
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if ( $line =~ 'netCDF FileHandle' ) {
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( $name, $F_ID ) = &splitLine( $line, '=' );
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}
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}
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}
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# Open the file that will ho
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open( O, ">$cmdFile" ) or die "Cannot open $cmdFile\n";
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# Pass thru @lines array so that we can declare Fortran variables
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&writeFortranVars( \*O, @lines );
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# Pass thru @lines array again to write
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&writeFortranCalls( \*O, @lines );
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#--------------------------------------------------
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# Cleanup and quit
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#--------------------------------------------------
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# Close output file
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close( O );
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# Return
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return( 0 );
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}
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#EOC
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#------------------------------------------------------------------------------
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# Harvard University Atmospheric Chemistry Modeling Group !
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#------------------------------------------------------------------------------
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#BOP
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#
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# !IROUTINE: writeFortranVars
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#
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# !DESCRIPTION: Routine writeFortranVars generates the proper Fortran
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# variable declarations that are needed for use with the NcdfUtilities
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# library routines.
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#\\
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#\\
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# !INTERFACE:
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#
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sub writeFortranVars($@) {
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#
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# !INPUT PARAMETERS:
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#
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# $O : File handle
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# @lines : Contents of the resource file
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my ( $O, @lines ) = @_;
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#
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# !CALLING SEQUENCE:
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# &writeFortranVars( \*O, @lines );
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#
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# !REVISION HISTORY:
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# 30 Jan 2012 - R. Yantosca - Initial version
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# 31 Jan 2012 - R. Yantosca - Minor edits for consistency
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# 01 Feb 2012 - R. Yantosca - Fix typo in output ProTeX header
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# 09 Jul 2012 - R. Yantosca - Now make fId a local variable
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#EOP
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#------------------------------------------------------------------------------
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#BOC
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#
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# !LOCAL VARIABLES:
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#
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my @subStr = ();
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my $name = "";
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my $value = "";
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my $varName = "";
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my $varSize = "";
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my $varType = "";
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my $varDim = "";
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my $nDims = "";
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my @dims = ();
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my $dimDef = "";
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my $txt = "";
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#-------------------------------------------------------
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# Write USE statements
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#-------------------------------------------------------
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$txt .= <<EOF;
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!EOC
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!------------------------------------------------------------------------------
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! Harvard University Atmospheric Chemistry Modeling Group !
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!------------------------------------------------------------------------------
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!BOP
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!
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! !IROUTINE: read\_from\_netcdf\_file
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!
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! !DESCRIPTION: Routine to read variables and attributes from a netCDF
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! file. This routine was automatically generated by the Perl script
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! NcdfUtilities/perl/ncCodeRead.
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!\\\\
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!\\\\
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! !INTERFACE:
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!
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SUBROUTINE READ_FROM_NETCDF_FILE
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!
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! !USES:
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!
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! Modules for netCDF read
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USE m_netcdf_io_open
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USE m_netcdf_io_get_dimlen
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USE m_netcdf_io_read
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USE m_netcdf_io_readattr
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USE m_netcdf_io_close
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IMPLICIT NONE
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\# include "netcdf.inc"
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!
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! !REMARKS:
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! Assumes that you have:
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! (1) A netCDF library (either v3 or v4) installed on your system
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! (2) The NcdfUtilities package (from Bob Yantosca) source code
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! .
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! Although this routine was generated automatically, some further
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! hand-editing may be required (i.e. to specify the size of parameters,
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! and/or to assign values to variables. Also, you can decide how to handle
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! the variable attributes (or delete calls for reading attributes that you
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! do not need).
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!
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! !REVISION HISTORY:
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! 30 Jan 2012 - R. Yantosca - Initial version
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!EOP
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!------------------------------------------------------------------------------
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!BOC
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!
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! !LOCAL VARIABLES:
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!
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INTEGER :: $F_ID ! netCDF file ID
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EOF
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#-------------------------------------------------------
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# Add spacer text to the file
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#-------------------------------------------------------
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$txt .= <<EOF;
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!=================================================================
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! Variable declarations
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!=================================================================
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EOF
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# Loop thru the LINES array
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for ( my $i=0; $i<scalar( @lines ); $i++ ) {
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# Skip separator line
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if ( $lines[$i] eq '#' ) {
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# Do nothing
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}
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#----------------------------------------------------
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# DIMENSIONS section
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#----------------------------------------------------
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elsif ( $lines[$i] =~ '!DIMENSIONS:' ) {
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while ( $lines[++$i] ne '' ) {
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# Get the dimension name and its value
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( $name, $value ) = &splitLine( $lines[$i], '=' );
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#
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# Store the value in a hash under its name
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$F_DIMS{$name} = $value;
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}
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}
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#----------------------------------------------------
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# VARIABLES section
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#----------------------------------------------------
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elsif ( $lines[$i] =~ '!VARIABLES:' ) {
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# Add a comment
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$txt .= " ! Data arrays\n";
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while ( $lines[++$i] ne '' ) {
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# Skip comment characters
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if ( !( $lines[$i] =~ '#' ) ) {
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# Split the line
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( $name, $value ) = &splitLine( $lines[$i], '=' );
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# If the name field does not have a semicolon
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# then it is a variable name and not an attribute
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if ( !( $name =~ ':' ) ) {
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# Find the variable type and variable dimension(s)
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( $varType, $varDim ) = &splitLine( $value, '::' );
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if ( $varType =~ 'REAL' ) { $varType = "$varType "; }
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# Get dimension information
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@dims = split( ',', $varDim );
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$nDims = scalar( @dims );
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# Create the Fortran dimension string that is used to declare
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# the variable, i.e. (IIPAR,JJPAR,1). Use the Perl hash %F_DIMS
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# to refer to the correponding value for each netCDF dimension.
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$dimDef = "(";
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for ( my $i=0; $i<$nDims; $i++ ) {
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while( my ( $key, $val ) = each( %F_DIMS ) ) {
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if ( $key =~ $dims[$i] ) {
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$dimDef .= "$val";
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if ( $i < $nDims-1 ) { $dimDef .= ","; }
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}
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}
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}
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$dimDef .= ")";
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# Definition string
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$txt .= " $varType :: $name$dimDef\n";
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}
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}
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}
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}
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||||
}
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#-------------------------------------------------------
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# OTHER VARIABLES section
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#-------------------------------------------------------
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$txt .= <<EOF2;
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! Character strings
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CHARACTER(LEN=255) :: nc_dir ! netCDF directory name
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CHARACTER(LEN=255) :: nc_file ! netCDF file name
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CHARACTER(LEN=255) :: nc_path ! netCDF path name
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||||
CHARACTER(LEN=255) :: v_name ! netCDF variable name
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CHARACTER(LEN=255) :: a_name ! netCDF attribute name
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CHARACTER(LEN=255) :: a_val ! netCDF attribute value
|
||||
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||||
! Arrays for netCDF start and count values
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INTEGER :: st1d(1), ct1d(1) ! For 1D arrays
|
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INTEGER :: st2d(2), ct2d(2) ! For 2D arrays
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INTEGER :: st3d(3), ct3d(3) ! For 3D arrays
|
||||
INTEGER :: st4d(4), ct4d(4) ! For 4D arrays
|
||||
INTEGER :: st5d(5), ct5d(5) ! For 5D arrays
|
||||
INTEGER :: st6d(6), ct6d(6) ! For 6D arrays
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||||
EOF2
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print $O "$txt\n";
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|
||||
# Return
|
||||
return( 0 );
|
||||
}
|
||||
#EOC
|
||||
#------------------------------------------------------------------------------
|
||||
# Harvard University Atmospheric Chemistry Modeling Group !
|
||||
#------------------------------------------------------------------------------
|
||||
#BOP
|
||||
#
|
||||
# !IROUTINE: writeFortranCalls
|
||||
#
|
||||
# !DESCRIPTION: Routine writeFortranCalls generates the proper calls to the
|
||||
# NcdfUtilities library routines for reading data from the netCDF file.
|
||||
#\\
|
||||
#\\
|
||||
# !INTERFACE:
|
||||
#
|
||||
sub writeFortranCalls($@) {
|
||||
#
|
||||
# !INPUT PARAMETERS:
|
||||
#
|
||||
# $O : File handle
|
||||
# @lines : Contents of the resource file
|
||||
my ( $O, @lines ) = @_;
|
||||
#
|
||||
# !CALLING SEQUENCE:
|
||||
# &writeFortranCalls( \*O, @lines );
|
||||
#
|
||||
# !REVISION HISTORY:
|
||||
# 30 Jan 2012 - R. Yantosca - Initial version
|
||||
# 31 Jan 2012 - R. Yantosca - Minor edits for consistency
|
||||
# 26 Mar 2012 - R. Yantosca - Echo info about the file I/O to stdout
|
||||
# 26 Mar 2012 - R. Yantosca - Now echo info about the file I/O to stdout
|
||||
#EOP
|
||||
#------------------------------------------------------------------------------
|
||||
#BOC
|
||||
#
|
||||
# !LOCAL VARIABLES:
|
||||
#
|
||||
my $attName = "";
|
||||
my $varName = "";
|
||||
my $varDim = "";
|
||||
my $varType = "";
|
||||
my $ncDir = "";
|
||||
my $ncFile = "";
|
||||
my $ncPath = "";
|
||||
my $nDims = "";
|
||||
my $start = "";
|
||||
my $count = "";
|
||||
my @dims = ();
|
||||
my $name = "";
|
||||
my $value = "";
|
||||
my $txt = "";
|
||||
|
||||
# Loop thru each line in the file
|
||||
for ( my $i = 0; $i < scalar( @lines ); $i++ ) {
|
||||
|
||||
# Skip separator line
|
||||
if ( $lines[$i] eq '#' ) {
|
||||
# Do nothing
|
||||
}
|
||||
|
||||
#----------------------------------------------------
|
||||
# FILENAME section
|
||||
#----------------------------------------------------
|
||||
elsif ( $lines[$i] =~ '!FILENAME:' ) {
|
||||
|
||||
while ( $lines[++$i] ne '' ) {
|
||||
|
||||
if ( $lines[$i] =~ 'netCDF FileName' ) {
|
||||
|
||||
# Split the line on the equals sign
|
||||
( $name, $value ) = &splitLine( $lines[$i], '=' );
|
||||
|
||||
# Full path name of file to read
|
||||
$ncPath = $value;
|
||||
|
||||
# Split path into filename & directory parts
|
||||
( $ncFile, $ncDir ) = &extractFile( $ncPath );
|
||||
|
||||
# Create string
|
||||
$txt .= <<EOF;
|
||||
!=================================================================
|
||||
! Open and read data from the netCDF file
|
||||
!=================================================================
|
||||
|
||||
! Open netCDF file
|
||||
nc_path = '$ncPath'
|
||||
CALL Ncop_Rd( $F_ID, TRIM(nc_path) )
|
||||
|
||||
! Echo info to stdout
|
||||
nc_file = '$ncFile'
|
||||
nc_dir = '$ncDir'
|
||||
WRITE( 6, 100 ) REPEAT( '%', 79 )
|
||||
WRITE( 6, 110 ) TRIM(nc_file)
|
||||
WRITE( 6, 120 ) TRIM(nc_dir)
|
||||
|
||||
EOF
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#----------------------------------------------------
|
||||
# VARIABLES section
|
||||
#----------------------------------------------------
|
||||
elsif ( $lines[$i] =~ '!VARIABLES:' ) {
|
||||
|
||||
# Write fortran calls to define variables
|
||||
while ( $lines[++$i] ne '' ) {
|
||||
if ( !( $lines[$i] =~ '#' ) ) {
|
||||
|
||||
# Split the line on the equals sign
|
||||
( $name, $value ) = &splitLine( $lines[$i], '=' );
|
||||
|
||||
#----------------------------------------------
|
||||
# If the $name field has a semicolon,
|
||||
# then it's a variable attribute
|
||||
#----------------------------------------------
|
||||
if ( $name =~ ':' ) {
|
||||
|
||||
# Split into the variable name and attribute name
|
||||
( $varName, $attName ) = &splitLine( $name, ':' );
|
||||
|
||||
# Create the text
|
||||
$txt .= <<EOF2;
|
||||
! Read the $varName:$attName attribute
|
||||
a_name = "$attName"
|
||||
CALL NcGet_Var_Attributes( $F_ID,TRIM(v_name),TRIM(a_name),a_val )
|
||||
|
||||
EOF2
|
||||
# Write info about the variable we are reading to stdout
|
||||
if ( $attName =~ 'units' ) {
|
||||
$txt .= <<EOF2a;
|
||||
! Echo info to stdout
|
||||
WRITE( 6, 130 ) TRIM(v_name), TRIM(a_val)
|
||||
|
||||
EOF2a
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#--------------------------------------------
|
||||
# If the $name field lacks a semicolon,
|
||||
# then it's the variable name
|
||||
#--------------------------------------------
|
||||
else {
|
||||
|
||||
# Add spacer text
|
||||
$txt .= " !----------------------------------------\n";
|
||||
$txt .= " ! VARIABLE: $name\n";
|
||||
$txt .= " !----------------------------------------\n\n";
|
||||
|
||||
# Find the variable type and variable dimension(s)
|
||||
( $varType, $varDim ) = &splitLine( $value, '::' );
|
||||
|
||||
# Get dimension information
|
||||
@dims = split( ',', $varDim );
|
||||
$nDims = scalar( @dims );
|
||||
|
||||
# Write the variable name
|
||||
$txt .= <<EOF3;
|
||||
! Variable name
|
||||
v_name = "$name"
|
||||
|
||||
EOF3
|
||||
|
||||
# Create the start array
|
||||
$start = "st$nDims"."d";
|
||||
$txt .= " ! Read $name from file\n";
|
||||
$txt .= " $start = (/ ";
|
||||
for ( my $j=0; $j<$nDims; $j++ ) {
|
||||
$txt .= "1";
|
||||
if ( $j < $nDims-1 ) { $txt .= ", "; }
|
||||
}
|
||||
$txt .= " /)\n";
|
||||
|
||||
# Create the count array
|
||||
$count = "ct$nDims"."d";
|
||||
$txt .= " $count = (/ ";
|
||||
for ( my $j=0; $j<$nDims; $j++ ) {
|
||||
while( my( $key, $val ) = each( %F_DIMS ) ) {
|
||||
if ( $key =~ $dims[$j] ) {
|
||||
$txt .= "$val";
|
||||
if ( $j < $nDims-1 ) { $txt .= ", "; }
|
||||
}
|
||||
}
|
||||
}
|
||||
$txt .= " /)\n";
|
||||
|
||||
# Create the call to NcWr
|
||||
$txt .= <<EOF4;
|
||||
CALL NcRd( $name, $F_ID, TRIM(v_name), $start, $count )
|
||||
|
||||
EOF4
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#------------------------------------------------------
|
||||
# Cleanup and quit
|
||||
#------------------------------------------------------
|
||||
|
||||
# Closing text
|
||||
$txt .= <<EOF5;
|
||||
!=================================================================
|
||||
! Cleanup and quit
|
||||
!=================================================================
|
||||
|
||||
! Close netCDF file
|
||||
CALL NcCl( $F_ID )
|
||||
|
||||
! Echo info to stdout
|
||||
WRITE( 6, 140 )
|
||||
WRITE( 6, 100 ) REPEAT( '%', 79 )
|
||||
|
||||
! FORMAT statements
|
||||
100 FORMAT( a )
|
||||
110 FORMAT( '%% Opening file : ', a )
|
||||
120 FORMAT( '%% in directory : ', a, / , '%%' )
|
||||
130 FORMAT( '%% Successfully read ', a, ' [', a, ']' )
|
||||
140 FORMAT( '%% Successfully closed file!' )
|
||||
|
||||
END SUBROUTINE READ_FROM_NETCDF_FILE
|
||||
!EOC
|
||||
EOF5
|
||||
|
||||
# Write Fortran cmds to file
|
||||
print $O "$txt\n";
|
||||
|
||||
# Return
|
||||
return( 0 );
|
||||
}
|
||||
#EOC
|
||||
#------------------------------------------------------------------------------
|
||||
# Harvard University Atmospheric Chemistry Modeling Group !
|
||||
#------------------------------------------------------------------------------
|
||||
#BOP
|
||||
#
|
||||
# !IROUTINE: main
|
||||
#
|
||||
# !DESCRIPTION: Routine main is the driver routine for the ncCodeRead script.
|
||||
#\\
|
||||
#\\
|
||||
# !INTERFACE:
|
||||
#
|
||||
sub main() {
|
||||
#
|
||||
# !CALLING SEQUENCE:
|
||||
# &main();
|
||||
#
|
||||
# !REVISION HISTORY:
|
||||
# 30 Jan 2012 - R. Yantosca - Initial version
|
||||
#EOP
|
||||
#------------------------------------------------------------------------------
|
||||
#BOC
|
||||
|
||||
# Error check arguments
|
||||
if ( scalar( @ARGV ) == 0 ) {
|
||||
print "Usage: ncCodeRead RESOURCE-FILE\n";
|
||||
exit(1);
|
||||
}
|
||||
|
||||
# Read settings and create output files
|
||||
&readRcFile( $ARGV[0] );
|
||||
|
||||
# Return normally
|
||||
return( 0 );
|
||||
}
|
||||
#EOC
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
# Start main program
|
||||
main();
|
||||
|
||||
# Exit normally
|
||||
exit(0);
|
Reference in New Issue
Block a user