LexicalAccessTableFunctions Struct Reference
[LexicalAccessTable - Lexical access table module]

Lexical access table functions. More...

Data Fields
LexicalMemoryHandler(*	create )(const LexicalDataType type)
	Lexical memory constructor.
void(*	free )(LexicalMemoryHandler lexical_memory)
	Free and destroy a lexical memory (destructor).
int(*	export )(const LexicalMemoryHandler lexical_memory, const char *filename)
	Export the content of a lexical memory.
int(*	import )(LexicalMemoryHandler lexical_memory, const char *filename)
	Import the content of a lexical memory.
int(*	save )(const LexicalMemoryHandler lexical_memory, const char *filename)
	Save a lexical memory in a file.
int(*	load )(LexicalMemoryHandler lexical_memory, const char *filename)
	Load a lexical memory from a file.
int(*	dump )(const LexicalMemoryHandler lexical_memory, int(*print)(const char *,...))
	Dump the content of a lexical memory.
InsertionResult(*	insert )(LexicalMemoryHandler lexical_memory, const LexicalEntry entry)
	Insert a new entry in a lexical memory.
size_t(*	getSize )(const LexicalMemoryHandler lexical_memory)
	Return the size of a lexical memory.
LexicalSearch(*	searchFirst )(const LexicalMemoryHandler lexical_memory, const LexicalEntry entry)
	Search the first occurence of a graphy in a lexical memory.
gboolean(*	searchNext )(LexicalSearch *search)
	Search the next occurence of a graphy in a lexical memory.
void(*	uniqIdToLexicalSearch )(const LexicalMemoryHandler lexical_memory, const UniqId uid, LexicalSearch *output)
	Converts a UniqId to a LexicalSearch.
LexicalEntry(*	getNextEntry )(LexicalMemoryHandler lexical_memory)
	Return the next graphy stored in a lexical memory.
void(*	goToFirstEntry )(LexicalMemoryHandler lexical_memory)
	Go back to the first graphy stored in a lexical memory.
LexicalCharacter(*	getNextAvailableCharacter )(LexicalMemoryHandler lexical_memory)
	Return the next character available at the current position.
void(*	goToRoot )(LexicalMemoryHandler lexical_memory)
	Set the current position to the root of the lexical memory.
void(*	goCharacterForward )(LexicalMemoryHandler lexical_memory)
	Step one lexical character forward the current position.
void(*	goCharacterBackward )(LexicalMemoryHandler lexical_memory)
	Step one lexical character backward the current position.
gboolean(*	isAtEndOfGraphy )(const LexicalMemoryHandler lexical_memory)
	Tell if the current position corresponds to a stored entry.
UniqId(*	getCurrentGraphyUniqId )(const LexicalMemoryHandler lexical_memory)
	Return the unique identifier associated to the current position.
size_t(*	getCurrentGraphyLength )(const LexicalMemoryHandler lexical_memory)
	Return the length of the current word.
LexicalDataType(*	getDataType )(const LexicalMemoryHandler lexical_memory)
	Tell the kind of lexical memory.

---

Detailed Description

Lexical access table functions.

Set of functions that a lexical access table must implement

See also:

LexicalAssocMem

---

Field Documentation

LexicalMemoryHandler(* LexicalAccessTableFunctions::create)(const LexicalDataType type)

Lexical memory constructor.

Allocate the memory and initialize a new lexical memory implementation.

Parameters:

[in]

type

The data type entries to store in the memory

Returns:

The new lexical memory instance

See also:

free()

int(* LexicalAccessTableFunctions::dump)(const LexicalMemoryHandler lexical_memory, int(*print)(const char *,...))

Dump the content of a lexical memory.

Dump the content of a lexical memory using a given print function. The function returns a not null error code if operation fails.

Parameters:

[in]	lexical_memory	The lexical memory to dump
[in]	print	The print function to use

Returns:

An error code

int(* LexicalAccessTableFunctions::export)(const LexicalMemoryHandler lexical_memory, const char *filename)

Export the content of a lexical memory.

Save the content of a lexical memory in a textual (human readable) file. The function returns a not null error code if operation fails.

Parameters:

[in]	lexical_memory	The lexical memory to export
[in]	filename	The name of the output file

Returns:

An error code

See also:

import()

void(* LexicalAccessTableFunctions::free)(LexicalMemoryHandler lexical_memory)

Free and destroy a lexical memory (destructor).

Destroy and free the memory allocated to a lexical memory

Parameters:

[in]

lexical_memory

The lexical memory to free

See also:

create()

size_t(* LexicalAccessTableFunctions::getCurrentGraphyLength)(const LexicalMemoryHandler lexical_memory)

Return the length of the current word.

Return the length of the word associated to the current exploring position

Remarks:

The value returned is increment at every valid goCharacterForward call, decremented at every valid goCharacterBackward call, and reset to 0 at every goToRoot call.

Parameters:

[in]

lexical_memory

The lexical memory to explore

Returns:

The length of the word corresponding to the current exploring position

UniqId(* LexicalAccessTableFunctions::getCurrentGraphyUniqId)(const LexicalMemoryHandler lexical_memory)

Return the unique identifier associated to the current position.

Return the identifier of the word corresponding to the current exploring position.

Remarks:

A call to this function makes sense only if the current position corresponds to the end of a stored word. The user must check this condition by using the isAtEndOfGraphy function. If the parsed word is not stored by the lexical memory, this function returns 0.

Parameters:

[in]

lexical_memory

The lexical memory to explore

Returns:

The identifier from currently explored word

See also:

isAtEndOfGraphy()

LexicalDataType(* LexicalAccessTableFunctions::getDataType)(const LexicalMemoryHandler lexical_memory)

Tell the kind of lexical memory.

Return the data type of the entries stored in the lexical memory

Parameters:

[in]

lexical_memory

The lexical memory to identify

Returns:

The type of the stored entries

See also:

create()

LexicalCharacter(* LexicalAccessTableFunctions::getNextAvailableCharacter)(LexicalMemoryHandler lexical_memory)

Return the next character available at the current position.

Iteratively return all the lexical characters available from the current exploring position. This function can be called until its returns NO_CHARACTER, signifying that all possible characters have been returned. At this point, a further call to getNextAvailableCharacter goes back to the first lexical character available.

Parameters:

[in]

lexical_memory

The lexical memory to explore

See also:

goCharacterForward() getCurrentGraphyLength() goToRoot()

LexicalEntry(* LexicalAccessTableFunctions::getNextEntry)(LexicalMemoryHandler lexical_memory)

Return the next graphy stored in a lexical memory.

Iteratively return all the graphies stored in a lexical memory. This function can be called until its returns NULL, signifying that all stored graphies have been returned.

Parameters:

[in]

lexical_memory

The lexical memory to make an inventory of

Returns:

The graphy of the next word stored

See also:

goToFirstEntry()

size_t(* LexicalAccessTableFunctions::getSize)(const LexicalMemoryHandler lexical_memory)

Return the size of a lexical memory.

Return the number of entries stored in a lexical memory

Parameters:

[in]

lexical_memory

The lexical memory

Returns:

The number of entries stored

void(* LexicalAccessTableFunctions::goCharacterBackward)(LexicalMemoryHandler lexical_memory)

Step one lexical character backward the current position.

Step backward the current exploring position from one lexical character. The exploring informations of the position before the call are lost so that when one goes back to that position, available characters inventory start again from the beginning.

Remarks:

This function has no effect if the current position is the root of the lexical memory

Parameters:

[in]

lexical_memory

The lexical memory to explore

See also:

goCharacterForward() goToRoot()

void(* LexicalAccessTableFunctions::goCharacterForward)(LexicalMemoryHandler lexical_memory)

Step one lexical character forward the current position.

Step forward the current exploring position from one lexical character, that is the value returned by the last call of getNextAvailableCharacter from the current exploring position. Each time this function is called, the current state is saved so that when one go back to a given exploring position using goCharacterBackward, the available characters inventory with getNextAvailableCharacter carries on as if the current position had not been left.

Remarks:

This function has no effect if getNextAvailableCharacter has not been called at least one time or no character is available from the current exploring position

Parameters:

[in]

lexical_memory

The lexical memory to explore

See also:

isAtEndOfGraphy() goToRoot()

void(* LexicalAccessTableFunctions::goToFirstEntry)(LexicalMemoryHandler lexical_memory)

Go back to the first graphy stored in a lexical memory.

This function can be called anytime to order to start again the lexical memory inventory (with getNextEntry) from the beginning.

Parameters:

[in]

lexical_memory

The lexical memory to make an inventory of

void(* LexicalAccessTableFunctions::goToRoot)(LexicalMemoryHandler lexical_memory)

Set the current position to the root of the lexical memory.

Assign the current exploring position to the root of the lexical memory, i.e. before the first lexical character.

Parameters:

[in]

lexical_memory

The lexical memory to explore

See also:

goCharacterForward() goCharacterBackward()

int(* LexicalAccessTableFunctions::import)(LexicalMemoryHandler lexical_memory, const char *filename)

Import the content of a lexical memory.

Load a lexical memory with the content of a textual (human readable) file. The function returns a not null error code if operation fails.

Parameters:

[out]	lexical_memory	The lexical memory where to import
[in]	filename	The name of the input file

Returns:

An error code

See also:

export()

InsertionResult(* LexicalAccessTableFunctions::insert)(LexicalMemoryHandler lexical_memory, const LexicalEntry entry)

Insert a new entry in a lexical memory.

Insert a new lexical entry (graphy) into lexical memory. The function returns an insertion result whose nature may vary from one implementation to another.

Parameters:

[in]	lexical_memory	The lexical memory
[in]	entry	The graphy of the entry to insert

Returns:

The insertion result

See also:

getSize()

gboolean(* LexicalAccessTableFunctions::isAtEndOfGraphy)(const LexicalMemoryHandler lexical_memory)

Tell if the current position corresponds to a stored entry.

Remarks:

The fact that the current position coincide with the end of a stored word doesn't imply that one can't carry on the exploration deeper (with goCharacterForward)

Parameters:

[in]

lexical_memory

The lexical memory to explore

Returns:

The current exploring position corresponds to the end of stoted word yes or not

See also:

getCurrentGraphyUniqId()

int(* LexicalAccessTableFunctions::load)(LexicalMemoryHandler lexical_memory, const char *filename)

Load a lexical memory from a file.

Load a lexical memory from a binary (machine readable) save file. The function returns a not null error code if operation fails.

Parameters:

[out]	lexical_memory	The lexical memory where to load
[in]	filename	The name of the output file

Returns:

An error code

See also:

save()

int(* LexicalAccessTableFunctions::save)(const LexicalMemoryHandler lexical_memory, const char *filename)

Save a lexical memory in a file.

Save the content of a lexical memory in a binary (machine readable) file. The function returns a not null error code if operation fails.

Remarks:

The binary file format is dependant of the lexical memory implementation and of the used platform

Parameters:

[in]	lexical_memory	The lexical memory to save
[in]	filename	The name of the output file

Returns:

An error code

See also:

load()

LexicalSearch(* LexicalAccessTableFunctions::searchFirst)(const LexicalMemoryHandler lexical_memory, const LexicalEntry entry)

Search the first occurence of a graphy in a lexical memory.

Search the information related to the first entry corresponding to a given graphy. The LexicalSearch::found field informs if such graphy has been found or not. If yes, other corresponding entries can be iteratively recovered using searchNext.

Parameters:

[in]	lexical_memory	The lexical memory where to search
[in]	entry	The graphy to search

Returns:

The search result

gboolean(* LexicalAccessTableFunctions::searchNext)(LexicalSearch *search)

Search the next occurence of a graphy in a lexical memory.

Carry on a search process initiate by searchFirst. This function can be iteratively called until its returns FALSE, signifying that all relevant entries have been returned.

Parameters:

[in]

search

The search result to update

Returns:

A new entry has been found yes or not

void(* LexicalAccessTableFunctions::uniqIdToLexicalSearch)(const LexicalMemoryHandler lexical_memory, const UniqId uid, LexicalSearch *output)

Converts a UniqId to a LexicalSearch.

Converts an entry uniq identifier to the first corresponding LexicalSearch information. Notice however that the fields "found_length" and "specific.code" of the corresponding LexicalSearch are undefined in this context (and should thus not be used after).

Parameters:

[in]	lexical_memory	The corresponding lexical memory
[in]	uid	The UniqId to be converted
[in]	output	The LexicalSearch value to be updated

See also:

searchFirst()

---