rulexdb_seq3

Usage

#include <rulexdb.h>

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

Overview

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:

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.