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/* enchant
* Copyright (C) 2003 Yaacov Zamir
* Copyright (C) 2004 Dom Lachowicz
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, Dom Lachowicz and Yaacov Zamir
* give permission to link the code of this program with
* non-LGPL Spelling Provider libraries (eg: a MSFT Office
* spell checker backend) and distribute linked combinations including
* the two. You must obey the GNU Lesser General Public License in all
* respects for all of the code used other than said providers. If you modify
* this file, you may extend this exception to your version of the
* file, but you are not obligated to do so. If you do not wish to
* do so, delete this exception statement from your version.
*/
/*
* Hspell was written by Nadav Har'El and Dan Kenigsberg.
* See: http://www.ivrix.org.il/projects/spell-checker/
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <hspell.h>
#include "enchant-provider.h"
#include "unused-parameter.h"
/**
* convert struct corlist to **char
* the **char must be g_freed
*/
static gchar **
corlist2strv (struct corlist *cl, size_t nb_sugg)
{
char **sugg_arr = NULL;
if (nb_sugg > 0)
{
sugg_arr = g_new0 (char *, nb_sugg + 1);
for (size_t i = 0; i < nb_sugg; i++)
{
gsize len;
const char *sugg = corlist_str (cl, i);
if (sugg)
sugg_arr[i] = g_convert (sugg,
strlen (sugg),
"utf-8", "iso8859-8", NULL, &len, NULL);
}
}
return sugg_arr;
}
static char *
hspell_convert_to_iso8859_8 (EnchantDict *me, const char *const word, size_t len)
{
/* convert to iso 8859-8 */
gsize length;
char *iso_word = g_convert (word, len, "iso8859-8", "utf-8", NULL, &length, NULL);
if (iso_word == NULL)
enchant_dict_set_error (me, "word not valid Hebrew (could not be converted to ISO-8859-8)");
return iso_word;
}
static int
hspell_dict_check (EnchantDict * me, const char *const word, size_t len)
{
struct dict_radix *hspell_dict = (struct dict_radix *)me->user_data;
char *iso_word = hspell_convert_to_iso8859_8 (me, word, len);
g_return_val_if_fail (iso_word, -1);
/* check */
int preflen;
int res = hspell_check_word (hspell_dict, iso_word, &preflen);
/* if not correct try gimatria */
if (res != 1)
res = hspell_is_canonic_gimatria (iso_word) != 0;
g_free (iso_word);
return (res != 1);
}
static char **
hspell_dict_suggest (EnchantDict * me, const char *const word,
size_t len, size_t * out_n_suggs)
{
struct dict_radix *hspell_dict = (struct dict_radix *)me->user_data;
char *iso_word = hspell_convert_to_iso8859_8 (me, word, len);
g_return_val_if_fail (iso_word, NULL);
/* get suggestions */
struct corlist cl;
corlist_init (&cl);
hspell_trycorrect (hspell_dict, iso_word, &cl);
*out_n_suggs = corlist_n (&cl);
char **sugg_arr = corlist2strv (&cl, *out_n_suggs);
corlist_free (&cl);
g_free (iso_word);
return sugg_arr;
}
static EnchantDict *
hspell_provider_request_dict (EnchantProvider * me, const char *const tag)
{
if(!((strlen(tag) >= 2) && tag[0] == 'h' && tag[1] == 'e'))
return NULL;
/* try to set a new session */
struct dict_radix *hspell_dict = NULL;
int dict_flag = hspell_init (&hspell_dict, HSPELL_OPT_DEFAULT);
if (dict_flag != 0 || !hspell_dict)
{
enchant_provider_set_error (me, "can't create new dict.");
return NULL;
}
EnchantDict *dict = g_new0 (EnchantDict, 1);
dict->user_data = (void *) hspell_dict;
dict->check = hspell_dict_check;
dict->suggest = hspell_dict_suggest;
return dict;
}
static void
hspell_provider_dispose_dict (EnchantProvider * me _GL_UNUSED_PARAMETER, EnchantDict * dict)
{
struct dict_radix *hspell_dict = (struct dict_radix *)dict->user_data;
hspell_uninit (hspell_dict);
g_free (dict);
}
/* test for the existence of, then return $prefix/share/hspell/hebrew.wgz */
static char **
hspell_provider_list_dicts (EnchantProvider * me _GL_UNUSED_PARAMETER,
size_t * out_n_dicts)
{
const char * dictionary_path = hspell_get_dictionary_path();
char ** out_list = NULL;
*out_n_dicts = 0;
if(dictionary_path && *dictionary_path && g_file_test (dictionary_path, G_FILE_TEST_EXISTS)) {
out_list = g_new0 (char *, 2);
out_list[(*out_n_dicts)++] = g_strdup ("he");
}
return out_list;
}
static int
hspell_provider_dictionary_exists (struct str_enchant_provider * me,
const char *const tag)
{
(void)me;
return (!strcmp ("he", tag) || !strcmp ("he_IL", tag));
}
static void
hspell_provider_dispose (EnchantProvider * me)
{
g_free (me);
}
static const char *
hspell_provider_identify (EnchantProvider * me _GL_UNUSED_PARAMETER)
{
return "hspell";
}
static const char *
hspell_provider_describe (EnchantProvider * me _GL_UNUSED_PARAMETER)
{
return "Hspell Provider";
}
EnchantProvider *init_enchant_provider (void);
EnchantProvider *
init_enchant_provider (void)
{
EnchantProvider *provider = g_new0 (EnchantProvider, 1);
provider->dispose = hspell_provider_dispose;
provider->request_dict = hspell_provider_request_dict;
provider->dispose_dict = hspell_provider_dispose_dict;
provider->dictionary_exists = hspell_provider_dictionary_exists;
provider->identify = hspell_provider_identify;
provider->describe = hspell_provider_describe;
provider->list_dicts = hspell_provider_list_dicts;
return provider;
}
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