CREX bulletin implementation. More...

#include <bulletin.h>

Inheritance diagram for wreport::CrexBulletin:

Public Member Functions
void	clear ()
	Reset the bulletin.

const char *	encoding_name () const override throw ()
	Type of source/target encoding.

void	load_tables () override
	Load a new set of tables to use for encoding this message.

std::string	encode () const override
	Encode the message.

void	print_details (FILE *out) const override
	Print format-specific details.

unsigned	diff_details (const Bulletin &msg) const override
	Diff format-specific details.

Public Member Functions inherited from wreport::Bulletin
Subset &	obtain_subset (unsigned subsection)
	Get a Subset from the message. More...

const Subset &	subset (unsigned subsection) const
	Get a Subset from the message. More...

void	print (FILE *out) const
	Dump the contents of this bulletin.

void	print_structured (FILE *out) const
	Dump the contents of this bulletin, in a more structured way.

void	print_datadesc (FILE *out, unsigned indent=0) const
	Pretty-print the data descriptor section. More...

virtual unsigned	diff (const Bulletin &msg) const
	Compute the differences between two bulletins. More...

Static Public Member Functions
static bool	read (FILE in, std::string &buf, const char fname=0, off_t *offset=0)
	Read an encoded BUFR message from a stream. More...

static void	write (const std::string &buf, FILE out, const char fname=0)
	Write an encoded BUFR message to a stream. More...

static std::unique_ptr< CrexBulletin >	create ()
	To prevent breaking ABI if new members are added to bulletins, direct construction is discouraged in favour of an allocator function.

static std::unique_ptr< CrexBulletin >	decode_header (const std::string &raw, const char *fname="(memory)", size_t offset=0)
	Parse only the header of an encoded BUFR message. More...

static std::unique_ptr< CrexBulletin >	decode (const std::string &raw, const char *fname="(memory)", size_t offset=0)
	Parse an encoded BUFR message. More...

static std::unique_ptr< CrexBulletin >	decode_verbose (const std::string &raw, FILE out, const char fname="(memory)", size_t offset=0)
	Parse an encoded BUFR message, printing decoding information. More...

Data Fields
uint8_t	edition_number = 2
	CREX Edition number.

uint8_t	master_table_version_number = 19
	CREX master table version number. More...

uint8_t	master_table_version_number_bufr = 19
	BUFR master table version number. More...

uint8_t	master_table_version_number_local = 0
	Version number of local table used to augment the master table. More...

bool	has_check_digit = false
	True if the CREX message uses the check digit feature.

Data Fields inherited from wreport::Bulletin
std::string	fname
	Input file name (optional). More...

off_t	offset = 0
	File offset of the start of the message. More...

uint8_t	master_table_number = 0
	BUFR Master table number. More...

uint8_t	data_category = 0xff
	Data category (BUFR or CREX Table A)

uint8_t	data_subcategory = 0xff
	International data sub-category (see Common Code table C-13)

uint8_t	data_subcategory_local = 0xff
	Local data sub-category, defined locally by automatic data-processing (ADP) centres. More...

uint16_t	originating_centre = 0xffff
	Identification of originating/generating centre (see Common Code table C-11)

uint16_t	originating_subcentre = 0xffff
	Identification of originating/generating sub-centre (allocated by originating/generating centre - see Common Code table C-12)

uint8_t	update_sequence_number = 0
	Update sequence number (zero for original messages and for messages containing only delayed reports; incremented for the other updates)

uint16_t	rep_year = 0
	Reference year in bulletin header.

uint8_t	rep_month = 0
	Reference month in bulletin header.

uint8_t	rep_day = 0
	Reference day in bulletin header.

uint8_t	rep_hour = 0
	Reference hour in bulletin header.

uint8_t	rep_minute = 0
	Reference minute in bulletin header.

uint8_t	rep_second = 0
	Reference second in bulletin header.

Tables	tables
	Varcode and opcode tables used for encoding or decoding.

std::vector< Varcode >	datadesc
	Parsed data descriptor section.

std::vector< Subset >	subsets
	Decoded variables.

Detailed Description

CREX bulletin implementation.

Member Function Documentation

◆ decode()

static std::unique_ptr<CrexBulletin> wreport::CrexBulletin::decode	(	const std::string &	raw,
		const char *	fname = `"(memory)"`,
		size_t	offset = `0`
	)

static

Parse an encoded BUFR message.

Parameters

buf	The buffer to decode
fname	The file name to use for error messages
offset	The offset inside the file of the start of the bulletin, used for error messages

Returns: The new bulletin with the decoded message

◆ decode_header()

static std::unique_ptr<CrexBulletin> wreport::CrexBulletin::decode_header	(	const std::string &	raw,
		const char *	fname = `"(memory)"`,
		size_t	offset = `0`
	)

static

Parse only the header of an encoded BUFR message.

Parameters

buf	The buffer to decode
fname	The file name to use for error messages
offset	The offset inside the file of the start of the bulletin, used for error messages

Returns: The new bulletin with the decoded message

◆ decode_verbose()

static std::unique_ptr<CrexBulletin> wreport::CrexBulletin::decode_verbose	(	const std::string &	raw,
		FILE *	out,
		const char *	fname = `"(memory)"`,
		size_t	offset = `0`
	)

static

Parse an encoded BUFR message, printing decoding information.

Parameters

buf	The buffer to decode
out	Where the decoder information should be printed
fname	The file name to use for error messages
offset	The offset inside the file of the start of the bulletin, used for error messages

Returns: The new bulletin with the decoded message

◆ read()

static bool wreport::CrexBulletin::read	(	FILE *	in,
		std::string &	buf,
		const char *	fname = `0`,
		off_t *	offset = `0`
	)

static

Read an encoded BUFR message from a stream.

Parameters

in	The stream to read from
buf	The buffer where the data will be written
fname	File name to use in error messages

Return values

offset The offset in the file of the beginning of the BUFR data

Returns: true if a message was found, false on EOF

◆ write()

static void wreport::CrexBulletin::write	(	const std::string &	buf,
		FILE *	out,
		const char *	fname = `0`
	)

static

Write an encoded BUFR message to a stream.

Parameters

buf	The buffer with the data to write
out	The stream to write to
fname	File name to use in error messages

Field Documentation

◆ master_table_version_number

uint8_t wreport::CrexBulletin::master_table_version_number = 19

CREX master table version number.

See WMO Manual on Codes, FB95-XIV CREX, Specification of sections, note 3, for a list.

◆ master_table_version_number_bufr

uint8_t wreport::CrexBulletin::master_table_version_number_bufr = 19

BUFR master table version number.

See WMO Manual on Codes, Binary codes, FM94-XIV BUFR, Section 1 Identification section, note 5, for a list.

FIXME: I could not find any reference to why CREX edition 2 has a separate field for BUFR master table version number but not for BUFR master table version, or why it needs to reference BUFR master tables at all.

◆ master_table_version_number_local

uint8_t wreport::CrexBulletin::master_table_version_number_local = 0

Version number of local table used to augment the master table.

Local tables shall define those parts of the master table which are reserved for local use, thus version numbers of local tables may be changed at will by the originating centre. If no local table is used, the version number of the local table shall be encoded as 0.

The documentation for this class was generated from the following file:

bulletin.h

Public Member Functions

Static Public Member Functions

Data Fields

Detailed Description

Member Function Documentation

◆ decode()

◆ decode_header()

◆ decode_verbose()

◆ read()

◆ write()

Field Documentation

◆ master_table_version_number

◆ master_table_version_number_bufr

◆ master_table_version_number_local