Class providing sscanf functionality for parsing ASCII data. More...

#include <AsciiSscanf.h>

Classes
struct	FormatField
	Information we determine from each conversion field in the sscanf format. More...

Public Types
enum	fieldtype { DOUBLE =258, FLOAT, INT, SHORT, CHAR, UINT, USHORT, LONG, ULONG, UNKNOWN }

Public Member Functions
	AsciiSscanf ()

virtual	~AsciiSscanf ()

void	setFormat (const std::string &val) throw (nidas::util::ParseException)
	Set the format to be used to sscanf samples. More...

const std::string &	getFormat () const

void	setSampleTag (SampleTag *val)

const SampleTag *	getSampleTag () const

SampleTag *	getSampleTag ()

int	sscanf (const char input, float output, int nout) throw ()
	scan input, storing up to nout number of values into output, as floats. More...

int	getNumberOfFields () const

Public Attributes
const int	MAX_OUTPUT_VALUES
	Maximum number of fields that we can scan. More...

Private Member Functions
	AsciiSscanf (const AsciiSscanf &)
	No copying. More...

AsciiSscanf &	operator= (const AsciiSscanf &)
	No assignment. More...

Private Attributes
std::string	_format
	scanf format that we scan to count the number and type of % converters. More...

char *	_charfmt
	Same scanf format, converted to character for quick use by sscanf. More...

int	_lexpos
	Current lexical scanner position. More...

struct FormatField *	_currentField
	Pointer to current FormatField that we are scanning. More...

std::vector< FormatField * >	_fields
	Information scanned from each field. More...

bool	_allFloats
	Are all fields floats? More...

char *	_databuf0
	A local buffer to store results of sscanf. More...

char **	_bufptrs
	Pointers into the local buffer for each field in the format string. More...

SampleTag *	_sampleTag
	A scanner may produce dsm samples. More...

AsciiSscanfAdapter *	_lexer

Friends
class	AsciiSscanfAdapter

Detailed Description

Class providing sscanf functionality for parsing ASCII data.

One sets the sscanf format with setFormat then calls sscanf method. This class does a lexical parse of the sscanf conversion format string to determine the number and types of the conversions.

Member Enumeration Documentation

enum nidas::core::AsciiSscanf::fieldtype

Enumerator
DOUBLE
FLOAT
INT
SHORT
CHAR
UINT
USHORT
LONG
ULONG
UNKNOWN

Constructor & Destructor Documentation

*********** AsciiSscanf::AsciiSscanf ( )

Initial value:

{LETTER}    {
          return(AsciiSscanf::UNKNOWN);
        }
[ \t]+

References _bufptrs, _lexer, and MAX_OUTPUT_VALUES.

AsciiSscanf::~AsciiSscanf ( )

virtual

References _bufptrs, _charfmt, _databuf0, _fields, and _lexer.

nidas::core::AsciiSscanf::AsciiSscanf ( const AsciiSscanf & )

private

No copying.

Member Function Documentation

const std::string& nidas::core::AsciiSscanf::getFormat ( ) const

inline

References _format.

Referenced by nidas::dynld::WxtSensor::init(), and nidas::core::CharacterSensor::searchSampleScanners().

int nidas::core::AsciiSscanf::getNumberOfFields ( ) const

inline

References _fields.

Referenced by nidas::dynld::WxtSensor::init(), nidas::core::CharacterSensor::init(), nidas::dynld::TSI_CPC3772::process(), nidas::dynld::WxtSensor::scanSample(), nidas::core::CharacterSensor::scanSample(), nidas::core::CharacterSensor::searchSampleScanners(), nidas::dynld::isff::Wind2D::validateSscanfs(), nidas::dynld::isff::Wind3D::validateSscanfs(), nidas::core::CharacterSensor::validateSscanfs(), and nidas::dynld::WxtSensor::wxtValidateSscanfs().

const SampleTag* nidas::core::AsciiSscanf::getSampleTag ( ) const

inline

References _sampleTag.

Referenced by nidas::dynld::WxtSensor::init(), nidas::dynld::TSI_CPC3772::process(), nidas::dynld::WxtSensor::scanSample(), nidas::core::CharacterSensor::searchSampleScanners(), nidas::dynld::isff::Wind2D::validateSscanfs(), nidas::core::CharacterSensor::validateSscanfs(), and nidas::dynld::WxtSensor::wxtValidateSscanfs().

SampleTag* nidas::core::AsciiSscanf::getSampleTag ( )

inline

References _sampleTag.

AsciiSscanf& nidas::core::AsciiSscanf::operator= ( const AsciiSscanf & )

private

No assignment.

void AsciiSscanf::setFormat	(	const std::string &	val	)
throw	(	nidas::util::ParseException
	)

Set the format to be used to sscanf samples.

Throws ParseException if there is a conversion field that it doesn't recognize. Supports the basic conversions: f, g, d, o, x, u, c. The 'l' flag can be used with f and g for converting to a double: lf. The 'h' flag can be used with the integer conversions for converting to a short int: hd. Each can also include a maximum field width. Each can also have the suppression flag ('*'). Example: "%*2c%f%f%*5c%x" skips two characters, converts 2 float fields, skips five characters, converts a hex value.

References UNKNOWN.

Referenced by nidas::core::CharacterSensor::init().

void nidas::core::AsciiSscanf::setSampleTag ( SampleTag * val )

inline

References _sampleTag.

Referenced by nidas::core::CharacterSensor::init().

int AsciiSscanf::sscanf	(	const char *	input,
		float *	output,
		int	nout
	)
throw	(
	)

scan input, storing up to nout number of values into output, as floats.

If a conversion field is not for a float, like "%d", then the field is scanned into a the appropriate type (integer in this example) and then cast to a float. So a scanf of "99" with a "%d" will result in a float, with value 99.0.

References nidas::core::floatNAN, and UNKNOWN.

Referenced by nidas::dynld::TSI_CPC3772::process(), and nidas::core::CharacterSensor::scanSample().

Friends And Related Function Documentation

friend class AsciiSscanfAdapter

friend

Member Data Documentation

bool nidas::core::AsciiSscanf::_allFloats

private

Are all fields floats?

char** nidas::core::AsciiSscanf::_bufptrs

private

Pointers into the local buffer for each field in the format string.

The pointers are aligned appropriately for the type of the format conversion. The sscanf looks like so: sscanf(inputstr,format,bufptrs[0],bufptrs[1],bufptrs[2],...)

Referenced by AsciiSscanf(), and ~AsciiSscanf().

char* nidas::core::AsciiSscanf::_charfmt

private

Same scanf format, converted to character for quick use by sscanf.

Referenced by ~AsciiSscanf().

struct FormatField* nidas::core::AsciiSscanf::_currentField

private

Pointer to current FormatField that we are scanning.

char* nidas::core::AsciiSscanf::_databuf0

private

A local buffer to store results of sscanf.

Referenced by ~AsciiSscanf().

std::vector<FormatField*> nidas::core::AsciiSscanf::_fields

private

Information scanned from each field.

Referenced by getNumberOfFields(), and ~AsciiSscanf().

std::string nidas::core::AsciiSscanf::_format

private

scanf format that we scan to count the number and type of % converters.

This format is then used to do sscanf's on ASCII data coming from a sensor.

Referenced by getFormat().

AsciiSscanfAdapter* nidas::core::AsciiSscanf::_lexer

private

Referenced by AsciiSscanf(), and ~AsciiSscanf().

int nidas::core::AsciiSscanf::_lexpos

private

Current lexical scanner position.

SampleTag* nidas::core::AsciiSscanf::_sampleTag

private

A scanner may produce dsm samples.

sampleTag points to to SampleTag describing the samples produced.

Referenced by getSampleTag(), and setSampleTag().

const int nidas::core::AsciiSscanf::MAX_OUTPUT_VALUES

Maximum number of fields that we can scan.

Referenced by AsciiSscanf().

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

nidas/core/AsciiSscanf.h
nidas/core/AsciiSscanf.ll

Classes

Public Types

Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Friends

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation