eccodes/definitions/bufr/section.3.def

# Copyright 2005-2016 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.
#

constant defaultSequence=0;
constant tablesMasterDir="bufr/tables/[masterTableNumber]/wmo/[masterTablesVersionNumber]" : hidden;
constant tablesLocalDir="bufr/tables/[masterTableNumber]/local/[localTablesVersionNumber]/[bufrHeaderCentre:l]/[bufrHeaderSubCentre]" : hidden;
constant rootTablesDir="bufr/tables" : hidden;

# we should implement some table version dependency
#constant templatesMasterDir="bufr/templates/[masterTableNumber]/[masterTablesVersionNumber]";
#constant templatesLocalDir="bufr/templates/local/[masterTableNumber]/[bufrHeaderCentre:l]/[localTablesVersionNumber]";

constant templatesMasterDir="bufr/templates/";
constant templatesLocalDir="bufr/templates/local";

transient tableNumber=0;
#codetable[4] codeTablesMaster '[tablesMasterDir]/codetables/[tableNumber].table' : string_type,transient;
#codetable[4] codeTablesLocal '[tablesLocalDir]/codetables/[tableNumber].table' : string_type,transient;

hash_array sequences (defaultSequence,"sequence.def",tablesMasterDir,tablesLocalDir): long_type,no_copy;
#smart_table codeFlags ("codeFlag.def",tablesMasterDir,tablesLocalDir,...);

position offsetSection3;
section_length[3]       section3Length ;
unsigned[1]     reservedSection3 = 0;
unsigned[2]     numberOfSubsets : dump;
alias ls.numberOfSubsets=numberOfSubsets;

if (section2Present && bufrHeaderCentre==98 && section2Length==52) {

    if ( rdbType == 2 || rdbType == 3 || rdbType == 8 || rdbType == 12 ) {
      transient isSatelliteType=1;
    } else {
      transient isSatelliteType=0;
    }
		if (isSatelliteType || numberOfSubsets>1) {
				constant isSatellite=1;
		} else {
				constant isSatellite=0;
		}
    alias rdb.isSatellite=isSatellite;
		if (isSatellite) {
        meta localLongitude1 bits(keyData,40,26,-18000000,100000) : dump,no_copy;
        meta localLatitude1 bits(keyData,72,25,-9000000,100000) : dump,no_copy;
        meta localLongitude2 bits(keyMore,0,26,-18000000,100000) : dump,no_copy;
        meta localLatitude2 bits(keyMore,32,25,-9000000,100000) : dump,no_copy;

				if (numberOfSubsets>255 || 
						( rdbSubtype>=121 && rdbSubtype <=130 ) || 
						rdbSubtype==31) {
						meta ls.numberOfObservations bits(keySat,0,16) : dump,long_type,no_copy;
						meta ls.satelliteID bits(keySat,16,16) : dump,long_type,no_copy;
				} else {
						meta ls.numberOfObservations bits(keySat,0,8) : dump,long_type,no_copy;
						meta ls.satelliteID bits(keySat,8,16) : dump,long_type,no_copy;
				}
		} else {
        meta ls.localLatitude bits(keyData,72,25,-9000000,100000) : dump,no_copy;
        meta ls.localLongitude bits(keyData,40,26,-18000000,100000) : dump,no_copy;
        alias ls.ident=keyMore : dump,string_type,no_copy;
    }
}

flags[1]        section3Flags 'bufr/section3_flags.table';
flagbit observedData(section3Flags,7) : dump,no_copy;
flagbit compressedData(section3Flags,6) : dump,no_copy;
position offsetDescriptors;

#meta unexpandedDescriptorsEncoded raw(section3Length - 7,totalLength,section3Length) : hidden;

transient createNewData=1;
meta numberOfUnexpandedDescriptors   evaluate( (section3Length - 7) / 2 ) : no_copy;
#meta unexpandedDescriptors unexpanded_descriptors(unexpandedDescriptorsEncoded,createNewData) :dump,no_copy;
meta unexpandedDescriptors unexpanded_descriptors(numberOfUnexpandedDescriptors,createNewData) :dump,no_copy;

concept BufrTemplate (unknown,"BufrTemplate.def",templatesMasterDir,templatesLocalDir) : no_copy;

meta elementsTable bufr_elements_table("element.table",tablesMasterDir,tablesLocalDir) : hidden,no_copy; 


meta expandedCodes      expanded_descriptors(elementsTable,expandedCodes,0,unexpandedDescriptors,sequences) : no_copy; 
alias expandedDescriptors=expandedCodes;
#meta expandedReferences expanded_descriptors(elemetsTable,expandedCodes,2);
#meta expandedWidths     expanded_descriptors(elemetsTable,expandedCodes,3);
#meta expandedType       expanded_descriptors(elemetsTable,expandedCodes,4);

meta bufrdcExpandedDescriptors bufrdc_expanded_descriptors(expandedCodes) : no_copy;

#smart_table NAME (VALUES,FILE_NAME,MASTER_DIRECTORY,LOCAL_DIRECTORY,WIDTH_OF_CODE_IN_BITS,EXTRA_DIRECTORY,EXTRA_FILE_NAME);
smart_table expandedOriginalCodes (expandedCodes,"element.table",tablesMasterDir,tablesLocalDir,18,rootTablesDir,"operators.table") :no_copy;
meta expandedAbbreviations 	      smart_table_column(expandedOriginalCodes,0,1) : string_type,no_copy;
meta expandedTypes 					      smart_table_column(expandedOriginalCodes,1,0) : string_type,no_copy;
meta expandedNames 					      smart_table_column(expandedOriginalCodes,2,0)	:	string_type,no_copy;
meta expandedUnits 					      smart_table_column(expandedOriginalCodes,3,0)	:	string_type,no_copy;
meta expandedOriginalScales 	    smart_table_column(expandedOriginalCodes,4,0)	:	long_type,no_copy;
meta expandedOriginalReferences 	smart_table_column(expandedOriginalCodes,5,0)	:	long_type,no_copy;
meta expandedOriginalWidths 			smart_table_column(expandedOriginalCodes,6,0)	:	long_type,no_copy;
meta expandedCrex_units 			    smart_table_column(expandedOriginalCodes,7,0)	:	long_type,no_copy;
meta expandedCrex_scales 		      smart_table_column(expandedOriginalCodes,8,0)	:	long_type,no_copy;
meta expandedCrex_widths 		      smart_table_column(expandedOriginalCodes,9,0)	:	long_type,no_copy;

position endDescriptors;
section_padding section3Padding;
meta lengthDescriptors evaluate(endDescriptors-offsetDescriptors);
meta md5Structure md5(offsetDescriptors,lengthDescriptors);