tesseract::TessdataManager Class Reference

#include <tessdatamanager.h>

Collaboration diagram for tesseract::TessdataManager:

Public Member Functions
	TessdataManager ()
	TessdataManager (FileReader reader)
	~TessdataManager ()=default
bool	swap () const
bool	is_loaded () const
void	LoadFileLater (const char *data_file_name)
bool	Init (const char *data_file_name)
bool	LoadMemBuffer (const char *name, const char *data, int size)
void	OverwriteEntry (TessdataType type, const char *data, int size)
bool	SaveFile (const STRING &filename, FileWriter writer) const
void	Serialize (GenericVector< char > *data) const
void	Clear ()
void	Directory () const
bool	IsComponentAvailable (TessdataType type) const
bool	GetComponent (TessdataType type, TFile *fp)
bool	GetComponent (TessdataType type, TFile *fp) const
std::string	VersionString () const
void	SetVersionString (const std::string &v_str)
bool	IsBaseAvailable () const
bool	IsLSTMAvailable () const
const STRING &	GetDataFileName () const
bool	CombineDataFiles (const char *language_data_path_prefix, const char *output_filename)
bool	OverwriteComponents (const char *new_traineddata_filename, char **component_filenames, int num_new_components)
bool	ExtractToFile (const char *filename)

Static Public Member Functions
static bool	TessdataTypeFromFileSuffix (const char *suffix, TessdataType *type)
static bool	TessdataTypeFromFileName (const char *filename, TessdataType *type)

Private Attributes
STRING	data_file_name_
FileReader	reader_
bool	is_loaded_
bool	swap_
GenericVector< char >	entries_ [TESSDATA_NUM_ENTRIES]

Constructor & Destructor Documentation

TessdataManager() [1/2]

tesseract::TessdataManager::TessdataManager

(

)

TessdataManager() [2/2]

tesseract::TessdataManager::TessdataManager ( FileReader  reader )

explicit

~TessdataManager()

tesseract::TessdataManager::~TessdataManager ( )

default

Member Function Documentation

Clear()

void tesseract::TessdataManager::Clear

(

)

CombineDataFiles()

bool tesseract::TessdataManager::CombineDataFiles	(	const char *	language_data_path_prefix,
		const char *	output_filename
	)

Reads all the standard tesseract config and data files for a language at the given path and bundles them up into one binary data file. Returns true if the combined traineddata file was successfully written.

Directory()

void tesseract::TessdataManager::Directory

(

)

const

ExtractToFile()

bool tesseract::TessdataManager::ExtractToFile

(

const char *

filename

)

Extracts tessdata component implied by the name of the input file from the combined traineddata loaded into TessdataManager. Writes the extracted component to the file indicated by the file name. E.g. if the filename given is somepath/somelang.unicharset, unicharset will be extracted from the data loaded into the TessdataManager and will be written to somepath/somelang.unicharset.

Returns

true if the component was successfully extracted, false if the component was not present in the traineddata loaded into TessdataManager.

GetComponent() [1/2]

bool tesseract::TessdataManager::GetComponent	(	TessdataType	type,
		TFile *	fp
	)

GetComponent() [2/2]

bool tesseract::TessdataManager::GetComponent	(	TessdataType	type,
		TFile *	fp
	)		const

GetDataFileName()

const STRING& tesseract::TessdataManager::GetDataFileName ( ) const

inline

Init()

bool tesseract::TessdataManager::Init

(

const char *

data_file_name

)

Opens and reads the given data file right now.

Returns

true on success.

is_loaded()

bool tesseract::TessdataManager::is_loaded ( ) const

inline

IsBaseAvailable()

bool tesseract::TessdataManager::IsBaseAvailable ( ) const

inline

IsComponentAvailable()

bool tesseract::TessdataManager::IsComponentAvailable ( TessdataType  type ) const

inline

IsLSTMAvailable()

bool tesseract::TessdataManager::IsLSTMAvailable ( ) const

inline

LoadFileLater()

void tesseract::TessdataManager::LoadFileLater

(

const char *

data_file_name

)

LoadMemBuffer()

bool tesseract::TessdataManager::LoadMemBuffer	(	const char *	name,
		const char *	data,
		int	size
	)

OverwriteComponents()

bool tesseract::TessdataManager::OverwriteComponents	(	const char *	new_traineddata_filename,
		char **	component_filenames,
		int	num_new_components
	)

Gets the individual components from the data_file_ with which the class was initialized. Overwrites the components specified by component_filenames. Writes the updated traineddata file to new_traineddata_filename.

OverwriteEntry()

void tesseract::TessdataManager::OverwriteEntry	(	TessdataType	type,
		const char *	data,
		int	size
	)

SaveFile()

bool tesseract::TessdataManager::SaveFile	(	const STRING &	filename,
		FileWriter	writer
	)		const

Serialize()

void tesseract::TessdataManager::Serialize

(

GenericVector< char > *

data

)

const

SetVersionString()

void tesseract::TessdataManager::SetVersionString

(

const std::string &

v_str

)

swap()

bool tesseract::TessdataManager::swap ( ) const

inline

TessdataTypeFromFileName()

bool tesseract::TessdataManager::TessdataTypeFromFileName ( const char *  filename, TessdataType *  type  )

static

Tries to determine tessdata component file suffix from filename, returns true on success.

TessdataTypeFromFileSuffix()

bool tesseract::TessdataManager::TessdataTypeFromFileSuffix ( const char *  suffix, TessdataType *  type  )

static

Fills type with TessdataType of the tessdata component represented by the given file name. E.g. tessdata/eng.unicharset -> TESSDATA_UNICHARSET.

Returns

true if the tessdata component type could be determined from the given file name.

VersionString()

std::string tesseract::TessdataManager::VersionString

(

)

const

Member Data Documentation

data_file_name_

STRING tesseract::TessdataManager::data_file_name_

private

entries_

GenericVector<char> tesseract::TessdataManager::entries_[TESSDATA_NUM_ENTRIES]

private

is_loaded_

bool tesseract::TessdataManager::is_loaded_

private

reader_

FileReader tesseract::TessdataManager::reader_

private

swap_

bool tesseract::TessdataManager::swap_

private

---

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

• /home/stephane/src/tesseract/src/ccutil/tessdatamanager.h
• /home/stephane/src/tesseract/src/ccutil/tessdatamanager.cpp