NAME¶

rulexdb_seq - sequential retrieving dictionary items from the rulex database

SYNOPSIS¶

#include <rulexdb.h>

int rulexdb_search(RULEXDB *rulexdb, char *key, char *value, int item_type, int mode);

DESCRIPTION¶

The rulexdb_seq() function sequentially fetches lexical records one by one. It's operations are not disturbed by the key-based search.

The argument rulexdb references the rulex database.

The arguments key and value must point to the buffers with enough space for retrieved data.

The argument item_type specifies the dictionary dataset from which data will be retrieved. It may accept one of the following values:

RULEXDB_LEXBASE

Extract data from the Implicit dictionary.

RULEXDB_EXCEPTION

Extract data from the Explicit dictionary.

Note that the data type must be specified explicitly. The value RULEXDB_DEFAULT is not allowed here.

When fetching data from the Explicit dictionary the correction rules will be applied. To prevent this feature you can specify RULEXDB_EXCEPTION_RAW instead of RULEXDB_EXCEPTION.

The mode argument specifies direction of the dictionary scanning. Allowed
values are: DB_FIRST, DB_NEXT, DB_PREV, or DB_LAST as defined for the underlying database library.

RETURN VALUE¶

The rulexdb_seq() function returns RULEXDB_SUCCESS which is zero upon success, positive value RULEXDB_SPECIAL when no more records can be fetched, or negative error code if something is wrong.

ERRORS¶

RULEXDB_FAILURE

Referenced database has not been opened, internal data structures are corrupted or some other general failure has occurred.

RULEXDB_EMALLOC

Internal memory allocation error.

RULEXDB_EPARM

Invalid parameters are specified.

SEE ALSO¶

rulexdb_classify(3), rulexdb_close(3), rulexdb_dataset_name(3), rulexdb_discard_dictionary(3), rulexdb_discard_ruleset(3), rulexdb_fetch_rule(3), rulexdb_lexbase(3), rulexdb_load_ruleset(3), rulexdb_open(3), rulexdb_remove_item(3), rulexdb_remove_rule(3), rulexdb_remove_this_item(3), rulexdb_retrieve_item(3), rulexdb_search(3), rulexdb_subscribe_item(3), rulexdb_subscribe_rule(3)

AUTHOR¶

Igor B. Poretsky <poretsky@mlbox.ru>.