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/* This file is part of GNU Dico.
Copyright (C) 1998-2024 Sergey Poznyakoff
GNU Dico is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Dico is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Dico. If not, see <http://www.gnu.org/licenses/>. */
#include <dicod.h>
int
dicod_database_init(dicod_database_t *db)
{
dicod_module_instance_t *inst = db->instance;
if (inst->module->dico_capabilities & DICO_CAPA_NODB) {
dico_log(L_ERR, 0, _("cannot initialize database `%s': "
"module `%s' does not support databases"),
db->command, inst->ident);
return 1;
}
if (inst->module->dico_capabilities & DICO_CAPA_INIT_EXT) {
db->mod_handle = inst->module->dico_init_db_ext(db->name,
db->argc,
db->argv,
db->extra);
} else {
if (db->extra) {
dico_log(L_ERR, 0, _("cannot initialize database `%s': "
"module `%s' does not support extended initialization"),
db->command, inst->ident);
return 1;
}
db->mod_handle = inst->module->dico_init_db(db->name,
db->argc,
db->argv);
}
if (!db->mod_handle) {
dico_log(L_ERR, 0, _("cannot initialize database `%s'"), db->command);
return 1;
}
if (db->conv) {
dico_iterator_t itr = xdico_list_iterator(db->conv);
if (!itr)
dico_log(L_ERR, 0, _("cannot initialize converter list for `%s'"), db->name);
else {
dico_conv_t conv;
char *p;
for (p = dico_iterator_first(itr); p; p = dico_iterator_next(itr)) {
conv = dico_conv_find(p);
if (conv) {
dico_iterator_set_data(itr, conv);
free(p);
} else
dico_log(L_ERR, 0,
_("undefined converter %s for database %s"),
p, db->name);
}
dico_iterator_destroy(&itr);
}
}
return 0;
}
int
dicod_database_open(dicod_database_t *db)
{
dicod_module_instance_t *inst = db->instance;
if (inst->module->dico_open) {
if (inst->module->dico_open(db->mod_handle)) {
dico_log(L_ERR, 0, _("cannot open database `%s'"), db->command);
return 1;
}
}
if (!db->mime_headers
&& inst->module->dico_version > 2
&& inst->module->dico_db_mime_header) {
char *str = inst->module->dico_db_mime_header(db->mod_handle);
if (str) {
if (dico_header_parse(&db->mime_headers, str)) {
dico_log(L_WARN, errno,
"database %s: can't parse mime headers \"%s\"",
db->name,
str);
}
free(str);
}
}
return 0;
}
int
dicod_database_close(dicod_database_t *db)
{
int rc = 0;
if (db->mod_handle) {
dicod_module_instance_t *inst = db->instance;
if (inst->module->dico_close)
rc = inst->module->dico_close(db->mod_handle);
}
return rc;
}
int
dicod_database_deinit(dicod_database_t *db)
{
int rc = 0;
if (db->mod_handle) {
dicod_module_instance_t *inst = db->instance;
if (inst->module->dico_free_db) {
rc = inst->module->dico_free_db(db->mod_handle);
db->mod_handle = NULL;
}
}
return rc;
}
char *
dicod_database_get_descr(dicod_database_t *db)
{
if (db->descr)
return db->descr;
else {
dicod_module_instance_t *inst = db->instance;
if (inst->module->dico_db_descr)
return inst->module->dico_db_descr(db->mod_handle);
}
return NULL;
}
void
dicod_database_free_descr(dicod_database_t *db, char *descr)
{
if (descr && descr != db->descr)
free(descr);
}
char *
dicod_database_get_info(dicod_database_t *db)
{
if (db->info)
return db->info;
else {
dicod_module_instance_t *inst = db->instance;
if (inst->module->dico_db_info)
return inst->module->dico_db_info(db->mod_handle);
}
return NULL;
}
void
dicod_database_free_info(dicod_database_t *db, char *info)
{
if (info && info != db->info)
free(info);
}
void
dicod_database_get_languages(dicod_database_t *db, dico_list_t dlist[])
{
if (!(db->flags & DICO_DBF_LANG)) {
dicod_module_instance_t *inst = db->instance;
if (inst->module->dico_db_lang) {
/* FIXME: Return code? */
inst->module->dico_db_lang(db->mod_handle, db->langlist);
if (db->langlist[0] || db->langlist[1]) {
if (!db->langlist[0])
db->langlist[0] = dicod_langlist_copy(db->langlist[1]);
else if (!db->langlist[1])
db->langlist[1] = dicod_langlist_copy(db->langlist[0]);
}
if (dicod_any_lang_list_p(db->langlist[0]))
dico_list_destroy(&db->langlist[0]);
if (dicod_any_lang_list_p(db->langlist[1]))
dico_list_destroy(&db->langlist[1]);
}
db->flags |= DICO_DBF_LANG;
}
dlist[0] = db->langlist[0];
dlist[1] = db->langlist[1];
}
static char const *
convert_input(dicod_database_t *db, const char *word, char **storage)
{
char *cword = NULL;
if (db->conv) {
if (dico_conv_apply(db->conv, word, &cword)) {
dico_log(L_ERR, 0, _("%s: can't convert input word %s"),
db->name, word);
return NULL;
}
if (cword)
word = cword;
}
*storage = cword;
return word;
}
dicod_db_result_t *
dicod_database_match(dicod_database_t *db, const dico_strategy_t strat,
const char *word)
{
struct dico_database_module *mod = db->instance->module;
char *cword = NULL;
dico_result_t res;
if ((word = convert_input(db, word, &cword)) == NULL)
return NULL;
res = mod->dico_match(db->mod_handle, strat, word);
free(cword);
return dicod_db_result_alloc(db, res);
}
dicod_db_result_t *
dicod_database_define(dicod_database_t *db, const char *word)
{
struct dico_database_module *mod = db->instance->module;
char *cword = NULL;
dico_result_t res;
if ((word = convert_input(db, word, &cword)) == NULL)
return NULL;
res = mod->dico_define(db->mod_handle, word);
free(cword);
return dicod_db_result_alloc(db, res);
}
int
dicod_database_flags(dicod_database_t const *db)
{
struct dico_database_module *mod = db->instance->module;
if (mod->dico_version > 2 && mod->dico_db_flags)
return mod->dico_db_flags(db->mod_handle) & DICO_DBF_MASK;
return DICO_DBF_DEFAULT;
}
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