API for libUnihan. More...

#include "Unihan_enum.h"
#include "Unihan_phonetic.h"
#include "sqlite_functions.h"
#include "str_functions.h"

Data Structures
struct	UnihanIRG_SourceData
	IRG source data. More...
struct	UnihanIRG_SourceRec
	IRG source rec. More...
struct	DatabaseFuncStru
	Data structure of database supporting functions. More...
Typedefs
typedef int(*	UnihanCallback )(void userOption, int col_num, char results, char *col_names)
	Prototype of callback function for SQL execution.
Functions
SQL_Result *	unihan_find_all_matched (UnihanField givenField, const char *givenValue, UnihanField queryField, UnihanQueryOption qOption)
	Find all matched results, given a field and its value.
char *	unihan_find_firstMatched (UnihanField givenField, const char *givenValue, UnihanField queryField, UnihanQueryOption qOption)
	Find the first matched result, given a field and its value.
int	unihan_count_matched_record (UnihanTable table, StringList *valueList)
	Count number of matched records in a table.
int	unihan_insert (UnihanTable table, StringList *valueList)
	Insert a record to table.
int	unihan_insert_no_duplicate (UnihanTable table, StringList *valueList)
	Insert a record to table with duplication check.
int	unihan_insert_value (gunichar code, UnihanField field, const char *value)
	Insert a Unihan textual formated record to corresponding tables.
gboolean	unihanChar_has_property (gunichar code, UnihanField field)
	Whether the character is associate with the given field.
gboolean	unihanChar_is_in_source (gunichar code, UnihanIRG_SourceId source)
	Whether the character appeared in given source.
UnihanIRG_SourceId	unihanChar_is_in_sources (gunichar code, UnihanIRG_SourceId source,...)
	Find the first source which the character appears in.
gboolean	unihanChar_is_common_in_locale (gunichar code, UnihanLocale locale)
	Whether the character is common in the specified locale.
UnihanRange	unihanChar_in_range (gunichar code)
	Return the range which the character belong to.
gunichar	unihanChar_parse (const char *str)
	Parses the string argument as a UCS4 (gunichar) character.
char *	unihanChar_to_scalar_string (gunichar code)
	Returns a string representing a UCS4 character.
sqlite3 *	unihanDb_get ()
	Returns the db which libUnihan is using.
SQL_Result *	unihanDb_get_tableNames ()
	Returns the tables in database.
int	unihanDb_open (const char *filename, int flags)
	Open a Unihan db.
int	unihanDb_open_default ()
	Open the system default Unihan Db as read-only.
int	unihanDb_close ()
	Close Unihan db.
int	unihanField_array_index (UnihanField field, const UnihanField *fieldArray)
	Return the index of a UnihanField in array.
UnihanIRG_Source	unihanField_get_IRG_source (UnihanField field)
	Return the corresponding IRG source if the field is IRG source field.
UnihanTable	unihanField_get_table (UnihanField field)
	Return the table that contains the key.
UnihanTable *	unihanField_get_all_tables (UnihanField field)
	Return all the tables that contains the key.
UnihanTable	unihanField_get_extra_table (UnihanField field)
	Return the corresponding extra table if the field needs one.
gboolean	unihanField_is_IRG_Source (UnihanField field)
	Whether the field is IRG_Source.
gboolean	unihanField_is_indexed (UnihanField field)
	Whether the field is indexed.
gboolean	unihanField_is_integer (UnihanField field)
	Whether the field is an integer field.
gboolean	unihanField_is_case_no_change (UnihanField field)
	Whether the case of value should be kept.
gboolean	unihanField_is_lowercase (UnihanField field)
	Whether the value in the field is stored as lowercase.
gboolean	unihanField_is_mandarin (UnihanField field)
	Whether the field contains mandarin pronunciation.
gboolean	unihanField_is_pseudo (UnihanField field)
	Whether the field is a pseudo field.
gboolean	unihanField_is_ucs4 (UnihanField field)
	Whether the field holds UCS4 value.
gboolean	unihanField_is_singleton (UnihanField field)
	Whether the field is a singleton field.
UnihanField	unihanField_parse (const char *str)
	Parses the string argument as a UnihanField.
const char *	unihanField_to_string (UnihanField field)
	Returns a string representing a UnihanField.
gboolean	unihanIRG_Source_has_no_mapping (UnihanIRG_SourceId sourceId)
	Whether the SourceId has mapping.
const UnihanIRG_SourceData *	unihanIRG_SourceData_get (UnihanIRG_SourceId sourceId)
	Return the Unihan IRG_Source Data.
UnihanIRG_SourceId	unihanIRG_SourceId_parse (const char *sourceShortName)
	Parse the string argument as Unihan IRG Source ID.
UnihanIRG_SourceRec *	unihanIRG_SourceRec_parse (UnihanField field, const char *value)
	Parse the string argument as Unihan IRG Source Rec.
void	unihanIRG_SourceRec_free (UnihanIRG_SourceRec *rec)
	Free the UnihanIRG_SourceRec.
int	unihanSql_count_matches (const char sqlClause, char *errMsg_ptr)
	Count the number of matches.
int	unihanSql_exec (char sqlClause, UnihanCallback callback, void callbackOption, char **errMsg_ptr)
	Execute the SQL to Unihan db.
SQL_Result *	unihanSql_get_sql_result (const char *sqlClause)
	Obtains a SQL_Result table of SQL command.
UnihanLocale	unihanLocale_parse (char *str)
	Parse the string argument as Unihan Locale.
const char *	unihanLocale_to_string (UnihanLocale locale)
	Returns a string representing a UnihanLocale.
const char *	unihanRange_to_string (UnihanRange uRange)
	Returns a string representing a UnihanLocale.
UnihanTable	unihanTable_parse (const char *tableName)
	Parse the string argument as UnihanTable.
const char *	unihanTable_to_string (UnihanTable table)
	Returns a string representing a UnihanTable.
UnihanField *	unihanTable_get_db_fields (UnihanTable table)
	Returns the actual data table fields in an UnihanField array.
UnihanField *	unihanTable_get_fields (UnihanTable table)
	Returns all fields of the table in an UnihanField array.
UnihanField *	unihanTable_get_primary_key_fields (UnihanTable table)
	Returns all primary key fields of the given table in an UnihanField array.
Variables
const DatabaseFuncStru	DATABASE_FUNCS []
	List of database supporting functions.
Unihan query options.
#define	UNIHAN_QUERY_OPTION_LIKE 1
	Using SQL LIKE in WHERE expression.
#define	UNIHAN_QUERY_OPTION_SCALAR_STRING 1 << 1
	Show code point as string "U+xxxx".
#define	UNIHAN_QUERY_OPTION_SHOW_GIVEN_FIELD 1 << 2
	Show the given field in results.
#define	UNIHAN_QUERY_OPTION_PINYIN_TONE_ACCENT 1 << 3
	Use accent mark for pinyin tone.
#define	UNIHAN_QUERY_OPTION_PINYIN_FORMAT_MASK 7 << 4
	Mask for pinyin format.
#define	UNIHAN_QUERY_OPTION_ZHUYIN_FORCE_DISPLAY 1 << 7
	Force ZhuYin display.
#define	UNIHAN_QUERY_OPTION_ZHUYIN_FORMAT_MASK 7 << 8
	Mask for zhuyin format.
#define	UNIHAN_QUERY_OPTION_DEFAULT (PINYIN_ACCENT_UNIHAN << 4) \| (ZHUYIN_TONEMARK_ORIGINAL << 8)
	Default options, PinYin format is Unihan; and ZhuYin format is Original.
#define	UNIHAN_QUERY_OPTION_GET_PINYIN_FORMAT(options) (options & UNIHAN_QUERY_OPTION_PINYIN_FORMAT_MASK) >> 4
	Get PinYin format from UnihanQueryOption.
#define	UNIHAN_QUERY_OPTION_SET_PINYIN_FORMAT(options, format) options \|= format << 4
	Set PinYin format to UnihanQueryOption.
#define	UNIHAN_QUERY_OPTION_GET_ZHUYIN_FORMAT(options) (options & UNIHAN_QUERY_OPTION_ZHUYIN_FORMAT_MASK) >> 8
	Get ZhuYin format from UnihanQueryOption.
#define	UNIHAN_QUERY_OPTION_SET_ZHUYIN_FORMAT(options, format) options \|= format << 8
	Set ZhuYin format to UnihanQueryOption.
typedef guint	UnihanQueryOption
	Unihan query options.

Detailed Description

Define Documentation

#define UNIHAN_QUERY_OPTION_GET_PINYIN_FORMAT ( options ) (options & UNIHAN_QUERY_OPTION_PINYIN_FORMAT_MASK) >> 4

Parameters:

options A UnihanQueryOption.

Returns:: PinYin_Accent_Format

#define UNIHAN_QUERY_OPTION_GET_ZHUYIN_FORMAT ( options ) (options & UNIHAN_QUERY_OPTION_ZHUYIN_FORMAT_MASK) >> 8

Parameters:

options A UnihanQueryOption.

Returns:: ZhuYin_ToneMark_Format

#define UNIHAN_QUERY_OPTION_SET_PINYIN_FORMAT	(	options,
		format
	)	options \|= format << 4

Parameters:

options	A UnihanQueryOption.
format	PinYin_Accent_Format.

#define UNIHAN_QUERY_OPTION_SET_ZHUYIN_FORMAT	(	options,
		format
	)	options \|= format << 8

Parameters:

options	A UnihanQueryOption.
format	ZhuYin_Accent_Format.

Typedef Documentation

typedef guint UnihanQueryOption

Unihan query options provides additional control of query processing, such as SQL like query and output format.

Function Documentation

int unihan_count_matched_record	(	UnihanTable	table,
		StringList *	valueList
	)

Also useful to avoid the duplication record. For example, use unihan_count_matched_record(UNIHAN_TABLE_KRSADOBE_JAPAN_1_6, valueArray) to check whether the kRSAdobe_Japan_1_6Table has the record (13317,"C",15387,"3",1,1) before insertion, where the valueArray[]={ "13317", "C","15387","3","1","1", NULL};

Parameters:

table	the database table to be looked at.
valueList	Values in StringList.

Returns:: number of matched record. Negative if error.

SQL_Result* unihan_find_all_matched	(	UnihanField	givenField,
		const char *	givenValue,
		UnihanField	queryField,
		UnihanQueryOption	qOption
	)

This function is a convenient wrapper of unihanSql_get_sql_result().

Put the known field as givenFiled and its value as givenValue. The values of field specified in queryField will be put in the result table.

Use sql_result_free() to free the pResults after the finish using result table.

Parameters:

givenField	the given (input) field.
givenValue	the given value of the field.
queryField	the result field.
qOption	the UnihanQueryOption.

Returns:: a SQL_Result instance that stores the field names and result records.

See also:: unihan_find_firstMatched(); unihanSql_get_sql_result(); UnihanQueryOption; SQLite result codes

char* unihan_find_firstMatched	(	UnihanField	givenField,
		const char *	givenValue,
		UnihanField	queryField,
		UnihanQueryOption	qOption
	)

This is a simplified version of unihan_find_all_matched(). Instead of returning whole result table, it only returns the first matched result as string.

Use g_free() to free the returned result.

Parameters:

givenField	the given (input) field.
givenValue	the given value of the field.
queryField	the result field.
qOption	the UnihanQueryOption.

Returns:: the first matched result string. NULL if nothing matched.

See also:: unihan_find_all_matched()

int unihan_insert	(	UnihanTable	table,
		StringList *	valueList
	)

The value to be insert should be in string representation, as if put in plain text SQL command.

Parameters:

table	The database table to be looked at.
valueList	Values in StringList.

Returns:: SQLite result code, SQLITE_OK (value 0) if the query executed successfully, while non-zero value indicate error.

See also:: SQLite result codes; unihan_insert_no_duplicate(); unihan_insert_value()

int unihan_insert_no_duplicate	(	UnihanTable	table,
		StringList *	valueList
	)

It will check the duplication before insertion, otherwise is same with unihan_insert(). Return negative value if the duplication is found.

Parameters:

table	the database table to be looked at.
valueList	Values in StringList.

Returns:: Negative value is duplication is found. SQLITE_OK (value 0) if inserted successfully, while positive value indicate error.

int unihan_insert_value	(	gunichar	code,
		UnihanField	field,
		const char *	value
	)

This function deals with the insertion of Unihan textual formated records (as shown in Unihan.txt), which have 3 fields:

code scalar value (e.g. U+5231)
Unihan tag (e.g. kSemanticVariant)
The corresponding value (e.g. U+5275<kHanYu:TZ,kMeyerWempe)

This function will parse the value and insert the parsed result to corresponding tables.

Before using this function, convert first field to UCS4 (gunichar) format (using unihanChar_parse()); second to UnihanField (using unihanField_parse()).

Parameters:

code	character in UCS4 (gunichar)
field	the UnihanField
value	the value in as in Unihan.txt.

Returns:: Negative value is duplication is found. SQLITE_OK (value 0) if inserted successfully, while positive value indicate error.

gboolean unihanChar_has_property	(	gunichar	code,
		UnihanField	field
	)

Parameters:

code	character in UCS4 (gunichar)
field	the UnihanField

Returns:: TRUE if an non-NULL value is associate with the field, FALSE otherwise.

UnihanRange unihanChar_in_range ( gunichar code )

Parameters:

code	character in UCS4 (gunichar)

Returns:: the range which the character belong to.

See also:: UnihanRange

gboolean unihanChar_is_common_in_locale	(	gunichar	code,
		UnihanLocale	locale
	)

"Common" characters are the ones which appear in the well-known source, such as GB-2312 and JIS X 0208:1990. See Common sources for a locale for exact sources.

Parameters:

code	character in UCS4 (gunichar)
locale	the locale.

Returns:: TRUE if the character is common, FALSE otherwise.

See also:: Common sources for a locale

gboolean unihanChar_is_in_source	(	gunichar	code,
		UnihanIRG_SourceId	source
	)

Parameters:

code	character in UCS4 (gunichar)
source	IRG Source ID

Returns:: TRUE if character appeared in source, FALSE otherwise.

UnihanIRG_SourceId unihanChar_is_in_sources	(	gunichar	code,
		UnihanIRG_SourceId	source,
			...
	)

This function will return the first matched source, or until it reaches the end of

Parameters:

code	character in UCS4 (gunichar)
source	IRG Source ID, use UNIHAN_INVALID_SOURCEID as indefinite value terminator.

Returns:: the matched source id, or UNIHAN_INVALID_SOURCEID if none matched.

gunichar unihanChar_parse ( const char * str )

Parameters:

str	the string to be parsed.

Returns:: the character represented by the str in UCS4.

char* unihanChar_to_scalar_string ( gunichar code )

Parameters:

code	the UCS4 character.

Returns:: a string representing the UCS4 character.

int unihanDb_close ( )

Returns:: SQLite result code, SQLITE_OK (value 0) if the query executed successfully, while non-zero value indicate error.

See also:: SQLite result codes

sqlite3* unihanDb_get ( )

Normally this function is not needed, except to get additional control beyond SQL.

Returns:: the db which libUnihan is using.

SQL_Result* unihanDb_get_tableNames ( )

This function will get the names from database.

Use stringList_free() to free it.

Returns:: the tables in database.

int unihanDb_open	(	const char *	filename,
		int	flags
	)

The flags parameter provides additional control of database access. It is supported by sqlite3_open_v2(), thus it takes one of the following three values, optionally combined with the SQLITE_OPEN_NOMUTEX flag, just like the flags parameter of sqlite3_open_v2():

SQLITE_OPEN_READONLY: The database is opened in read-only mode. If the database does not already exist, an error is returned.
SQLITE_OPEN_READWRITE: The database is opened for reading and writing if possible, or reading only if the file is write protected by the operating system. In either case the database must already exist, otherwise an error is returned.
SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE: The database is opened for reading and writing, and is creates it if it does not already exist. This is the behavior that is always used for sqlite3_open() and sqlite3_open16().

See the sqlite3_open() for detail explanation of SQLITE_OPEN_NOMUTEX.

Note that SQLITE_OPEN_NOMUTEX flags is not supported in SQLite 3.3.X and earlier.

Parameters:

filename	name of db file to be open.
flags	Database access flags.

Returns:: SQLite result code, SQLITE_OK (value 0) if the query executed successfully, while non-zero value indicate error.

See also:: SQLite result codes; sqlite3_open()

int unihanDb_open_default ( )

Returns:: SQLite result code, SQLITE_OK (value 0) if the query executed successfully, while non-zero value indicate error.

See also:: SQLite result codes

int unihanField_array_index	(	UnihanField	field,
		const UnihanField *	fieldArray
	)

Parameters:

field	Field to be found
fieldArray	the array of UnihanFields.

Returns:: index of the UnihanField, -1 if the field is not found.

UnihanTable* unihanField_get_all_tables ( UnihanField field )

This function returns an array of tables, terminated by UNIHAN_INVALID_TABLE. Use unihanField_get_allTables() to obtain all the table that the field belongs to.

Parameters:

field the UnihanField.

Returns:: arrays of UnihanTables; NULL if the field is invalid.

See also:: unihanField_get_table(); unihanField_get_extra_table()

UnihanTable unihanField_get_extra_table ( UnihanField field )

A extra table is a table that provide additional information for pseudo field. For example, kSemanticVariant is a pseudo field which combines fields in kSemanticVariantTable and kSemanticVariantTableExtra.

unihanFIeld_get_table(UNIHAN_KSEMANTIC_VARIANT) returns kSemanticVariantTable while unihanFIeld_get_extra_table returns the extra table kSemanticVariantTableExtra.

Pseudo fields usually associate with extra tables, see unihanField_is_pseudo() for details.

Parameters:

field the UnihanField.

Returns:: the extra table if exist, UNIHAN_INVALID_TABLE otherwise.

See also:: unihanField_is_pseudo().

UnihanIRG_Source unihanField_get_IRG_source ( UnihanField field )

Parameters:

field the UnihanField.

Returns:: corresponding IRG source if the field is IRG source field; UNIHAN_INVALID_IRG_SOURCE if the field is not an IRG source field.

UnihanTable unihanField_get_table ( UnihanField field )

This function only returns one table. If the field is in more than one table, then returns UNIHAN_AMBIGUOUS_TABLE. Returns UNIHAN_INVALID_TABLE if invalid field is given.

Use unihanField_get_allTables() to obtain all the table that the field belongs to.

Parameters:

field the UnihanField.

Returns:: corresponding table if the field only appears in that table; UNIHAN_AMBIGUOUS_TABLE if the field appears in multiple tables; UNIHAN_INVALID_TABLE if invalid field is given.

See also:: unihanField_get_all_tables(); unihanField_get_extra_table()

gboolean unihanField_is_case_no_change ( UnihanField field )

Usually, the Unihan tag values are stored as uppercase, such as UNIHAN_FIELD_KMANDARIN, UNIHAN_FIELD_PINYIN.

However, there are exceptions such as field UNIHAN_FIELD_KCANTONESE which always stores as lowercase; while field UNIHAN_FIELD_KDEFINITION the other hand, may have uppercase and lowercase characters.

Integer fields need not change case, however, as UCS-4 can have 'U+xxxxx' form, UCS-4 should be convert to uppercase.

This function returns TRUE if the case of field value need not be changed, as with UNIHAN_FIELD_KDEFINITION; FALSE otherwise.

Parameters:

field the UnihanField

Returns:: TRUE if the case of field value should not be changed; FALSE otherwise.

See also:: unihanField_is_ucs4(); unihanField_is_lowercase()

gboolean unihanField_is_indexed ( UnihanField field )

Indexed field are non-pseudo fields which are indexed in database. Note that UNIHAN_FIELD_KDEFITION is not indexed as well.

Parameters:

field the UnihanField

Returns:: TRUE if the field is indexed; FALSE otherwise.

See also:: unihanField_is_pseudo()

gboolean unihanField_is_integer ( UnihanField field )

Parameters:

field the UnihanField

Returns:: TRUE if the field is integer; FALSE otherwise.

gboolean unihanField_is_IRG_Source ( UnihanField field )

It is a convenient wrapper of unihanField_get_IRG_source().

Parameters:

field the UnihanField.

Returns:: TRUE if the field is IRG_Source; FALSE otherwise.

gboolean unihanField_is_lowercase ( UnihanField field )

Usually, the Unihan tag values are stored as uppercase, such as UNIHAN_FIELD_KMANDARIN, UNIHAN_FIELD_PINYIN.

However, there are exceptions such as field UNIHAN_FIELD_KCANTONESE which always stores as lowercase; while field UNIHAN_FIELD_KDEFINITIONon the other hand, may have uppercase and lowercase characters.

Parameters:

field the UnihanField

Returns:: TRUE if the value of field is stored as lowercase; FALSE otherwise.

See also:: unihanField_is_case_no_change()

gboolean unihanField_is_mandarin ( UnihanField field )

Parameters:

field the UnihanField

Returns:: TRUE if the field is integer; FALSE otherwise.

gboolean unihanField_is_pseudo ( UnihanField field )

A pseudo field is a field whose value is not derived directly from table but database functions. Field zhuyin, for example, is not in database but derived from function PINYIN_TO_ZHUYIN(). It is deemed to be a short cut for database functions.

Another example is field kSemanticVariant, which is a pseudo field which combines: kSemanticVariantTable.varinatCode, kSemanticVariantTableExtra.fromDict, kSemanticVariantTableExtra.semanticT, kSemanticVariantTableExtra.semanticB and kSemanticVariantTableExtra.semanticZ

Parameters:

field the UnihanField

Returns:: TRUE if the field is a pseudo field; FALSE otherwise.

gboolean unihanField_is_singleton ( UnihanField field )

A singleton field is a field whose value cannot be further split, and is functional dependent to the UNIHAN_FIELD_CODE.

Most of tag value in Unihan.txt is delimited by space, however kDefinition, for example, should not be split in this way.

Parameters:

field the UnihanField

Returns:: TRUE if the field is a singleton field; FALSE otherwise.

gboolean unihanField_is_ucs4 ( UnihanField field )

UCS4 fields can be displayed in the form of Unicode scalar string (U+xxxxx)

Parameters:

field the UnihanField

Returns:: TRUE if the field holds a UCS4 value; FALSE otherwise.

UnihanField unihanField_parse ( const char * str )

Parameters:

str	the string to be parsed.

Returns:: the UnihanField represented by the str in UCS4.

const char* unihanField_to_string ( UnihanField field )

Parameters:

field the UnihanField.

Returns:: a string representing the UnihanField.

gboolean unihanIRG_Source_has_no_mapping ( UnihanIRG_SourceId sourceId )

Some IRG sources (such as UNIHAN_SOURCE_GKX, UNIHAN_SOURCE_G4K) does not have mapping index (inner code). This function tells whether a Source ID has mapping.

Parameters:

sourceId the IRG source ID.

Returns:: TRUE if the source ID has no mapping; FALSE otherwise.

const UnihanIRG_SourceData* unihanIRG_SourceData_get ( UnihanIRG_SourceId sourceId )

Note: the returned data is static, not need to be freed.

Parameters:

sourceId Unihan IRG source ID.

Returns:: the Unihan IRG_Source Data.

UnihanIRG_SourceId unihanIRG_SourceId_parse ( const char * sourceShortName )

Parameters:

sourceShortName the string to be parsed.

Returns:: the UnihanIRG_SourceID.

void unihanIRG_SourceRec_free ( UnihanIRG_SourceRec * rec )

Parameters:

rec	the unihanIRG_SourceRec

UnihanIRG_SourceRec* unihanIRG_SourceRec_parse	(	UnihanField	field,
		const char *	value
	)

Note:: {Use unihanIRG_SourceRec_free() to free the generated rec.}

Parameters:

field	the UnihanField
value	the string to be parsed.

Returns:: the UnihanIRG_SourceRec.

UnihanLocale unihanLocale_parse ( char * str )

Parameters:

str	the string to be parsed.

Returns:: the UnihanLocate.

const char* unihanLocale_to_string ( UnihanLocale locale )

Note: the return string is static, not need to free it.

Parameters:

locale the UnihanLocale.

Returns:: a string representing the UnihanLocale.

const char* unihanRange_to_string ( UnihanRange uRange )

Note: the return string is static, not need to free it.

Parameters:

uRange the UnihanRange.

Returns:: a string representing the UnihanRange.

int unihanSql_count_matches	(	const char *	sqlClause,
		char **	errMsg_ptr
	)

Parameters:

sqlClause	SQL command to be passed to Unihan db.
errMsg_ptr	pointer for error message.

Returns:: Negative number if the command does not execute successfully, ( -1 * SQLite_result_code); Non-negative number is the number of matches.

int unihanSql_exec	(	char *	sqlClause,
		UnihanCallback	callback,
		void *	callbackOption,
		char **	errMsg_ptr
	)

A convenient wrapper of sqlite3_exec().

Parameters:

sqlClause	SQL command to be passed to Unihan db.
callback	callback function for each match record, can be NULL.
callbackOption	option for callback function, can be NULL.
errMsg_ptr	pointer for error message.

Returns:: SQLite result codes

See also:: sqlite3_exec()

SQL_Result* unihanSql_get_sql_result ( const char * sqlClause )

Parameters:

sqlClause SQL command to be passed to Unihan db.

Returns:: an instance of SQL_Result that stores the results of the SQL command.

See also:: unihan_find_all_matched()

UnihanField* unihanTable_get_db_fields ( UnihanTable table )

Unlike unihanTable_get_fields(), this function will retrieves the actual fields from the database. Hence, it is slower than unihanTable_get_fields().

The returned UnihanField array is terminated by UNIHAN_INVALID_FIELD. Note: use g_free to free the UnihanField array.

Parameters:

table the UnihanTable.

Returns:: all fields of the table in an UnihanField array.

UnihanField* unihanTable_get_fields ( UnihanTable table )

Unlike unihanTable_get_db_fields(), this function returns the fields that supposedly in the given data table. It will not check the database, therefore it is faster than unihanTable_get_db_fields();

The returned UnihanField array is terminated by UNIHAN_INVALID_FIELD. Note: use g_free to free the UnihanField array.

Parameters:

table the UnihanTable.

Returns:: all fields of the table in an UnihanField array.

UnihanField* unihanTable_get_primary_key_fields ( UnihanTable table )

The returned UnihanField array is terminated by UNIHAN_INVALID_FIELD. Note: use g_free to free the UnihanField array.

Parameters:

table the UnihanTable.

Returns:: all primary key fields of the given table in an UnihanField array.

UnihanTable unihanTable_parse ( const char * tableName )

Parameters:

tableName the string to be parsed.

Returns:: the UnihanTable.

const char* unihanTable_to_string ( UnihanTable table )

Note: the return string is static, not need to free it.

Parameters:

table the UnihanTable.

Returns:: a string representing the UnihanTable.

Unihan.h File Reference

Data Structures

Typedefs

Functions

Variables

Unihan query options.

Detailed Description

Define Documentation

Typedef Documentation

Function Documentation