# (C) Copyright 2005- ECMWF.

position offsetSection1;
section_length[3] section1Length ;

unsigned[1]  masterTableNumber :dump;

unsigned[1]  bufrHeaderSubCentre : dump;
codetable[1] bufrHeaderCentre    'common/c-1.table' : dump;

unsigned[1]  updateSequenceNumber :dump;

flags[1] section1Flags 'bufr/section1_flags.table' = 128 : hidden ; # = section 2 present

unsigned[1] dataCategory : dump;
unsigned[1] dataSubCategory : dump;
unsigned[1] masterTablesVersionNumber : dump;
unsigned[1] localTablesVersionNumber : dump;

transient typicalCentury=21;

unsigned[1] typicalYearOfCentury : dump;
# ECC-1840: Use the 'evaluate' accessor so typicalYear is updated if user changes typicalCentury
meta typicalYear evaluate( (typicalCentury - 1) * 100 + typicalYearOfCentury ) : no_copy;

unsigned[1] typicalMonth : dump;
unsigned[1] typicalDay : dump;
unsigned[1] typicalHour : dump;
unsigned[1] typicalMinute : dump;
# unsigned[1] spare; # See ECC-978
transient typicalSecond=0;

meta ls.typicalDate sprintf("%.4d%.2d%.2d",typicalYear,typicalMonth,typicalDay) : dump,no_copy;
meta ls.typicalTime sprintf("%.2d%.2d%.2d",typicalHour,typicalMinute,typicalSecond) :dump,no_copy;

meta typicalDateTime julian_date(typicalYear,typicalMonth,typicalDay,typicalHour,typicalMinute,typicalSecond) ;

alias ls.centre=bufrHeaderCentre;
alias ls.masterTablesVersionNumber=masterTablesVersionNumber;
alias ls.localTablesVersionNumber=localTablesVersionNumber;

section_padding section1Padding;