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pinyin.cpp
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pinyin.cpp
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/*
* libpinyin
* Library to deal with pinyin.
*
* Copyright (C) 2011 Peng Wu <alexepico@gmail.com>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "pinyin.h"
#include <stdio.h>
#include <unistd.h>
#include <glib/gstdio.h>
#include "pinyin_internal.h"
using namespace pinyin;
/* a glue layer for input method integration. */
typedef GArray * CandidateVector; /* GArray of lookup_candidate_t */
struct _pinyin_context_t{
pinyin_option_t m_options;
/* input parsers. */
FullPinyinParser2 * m_full_pinyin_parser;
DoublePinyinParser2 * m_double_pinyin_parser;
ChewingParser2 * m_chewing_parser;
/* default tables. */
FacadeChewingTable * m_pinyin_table;
FacadePhraseTable2 * m_phrase_table;
FacadePhraseIndex * m_phrase_index;
Bigram * m_system_bigram;
Bigram * m_user_bigram;
/* lookups. */
PinyinLookup2 * m_pinyin_lookup;
PhraseLookup * m_phrase_lookup;
/* addon tables. */
FacadeChewingTable * m_addon_pinyin_table;
FacadePhraseTable2 * m_addon_phrase_table;
FacadePhraseIndex * m_addon_phrase_index;
char * m_system_dir;
char * m_user_dir;
bool m_modified;
SystemTableInfo2 m_system_table_info;
};
struct _pinyin_instance_t{
/* pointer of pinyin_context_t. */
pinyin_context_t * m_context;
/* cached user input full pinyin. */
gchar * m_raw_full_pinyin;
/* the tokens of phrases before the user input. */
TokenVector m_prefixes;
/* cached parsed pinyin keys. */
ChewingKeyVector m_pinyin_keys;
ChewingKeyRestVector m_pinyin_key_rests;
size_t m_parsed_len;
/* cached pinyin lookup variables. */
CandidateConstraints m_constraints;
MatchResults m_match_results;
CandidateVector m_candidates;
};
struct _lookup_candidate_t{
lookup_candidate_type_t m_candidate_type;
gchar * m_phrase_string;
phrase_token_t m_token;
ChewingKeyRest m_orig_rest;
gchar * m_new_pinyins;
guint32 m_freq; /* the amplifed gfloat numerical value. */
public:
_lookup_candidate_t() {
m_candidate_type = NORMAL_CANDIDATE;
m_phrase_string = NULL;
m_token = null_token;
m_new_pinyins = NULL;
m_freq = 0;
}
};
struct _import_iterator_t{
pinyin_context_t * m_context;
guint8 m_phrase_index;
};
struct _export_iterator_t{
pinyin_context_t * m_context;
guint8 m_phrase_index;
/* null token means no next item. */
phrase_token_t m_next_token;
guint8 m_next_pronunciation;
};
static bool _clean_user_files(const char * user_dir,
const pinyin_table_info_t * phrase_files){
/* clean up files, if version mis-matches. */
for (size_t i = 1; i < PHRASE_INDEX_LIBRARY_COUNT; ++i) {
const pinyin_table_info_t * table_info = phrase_files + i;
if (NOT_USED == table_info->m_file_type)
continue;
if (NULL == table_info->m_user_filename)
continue;
const char * userfilename = table_info->m_user_filename;
/* remove dbin file. */
gchar * filename = g_build_filename(user_dir, userfilename, NULL);
unlink(filename);
g_free(filename);
}
return true;
}
static bool check_format(pinyin_context_t * context){
const char * user_dir = context->m_user_dir;
UserTableInfo user_table_info;
gchar * filename = g_build_filename
(user_dir, USER_TABLE_INFO, NULL);
user_table_info.load(filename);
g_free(filename);
bool exists = user_table_info.is_conform
(&context->m_system_table_info);
if (exists)
return exists;
const pinyin_table_info_t * phrase_files = NULL;
phrase_files = context->m_system_table_info.get_default_tables();
_clean_user_files(user_dir, phrase_files);
phrase_files = context->m_system_table_info.get_addon_tables();
_clean_user_files(user_dir, phrase_files);
filename = g_build_filename
(user_dir, USER_PINYIN_INDEX, NULL);
unlink(filename);
g_free(filename);
filename = g_build_filename
(user_dir, USER_PHRASE_INDEX, NULL);
unlink(filename);
g_free(filename);
filename = g_build_filename
(user_dir, USER_BIGRAM, NULL);
unlink(filename);
g_free(filename);
return exists;
}
static bool mark_version(pinyin_context_t * context){
const char * userdir = context->m_user_dir;
UserTableInfo user_table_info;
user_table_info.make_conform(&context->m_system_table_info);
gchar * filename = g_build_filename
(userdir, USER_TABLE_INFO, NULL);
bool retval = user_table_info.save(filename);
g_free(filename);
return retval;
}
static bool _load_phrase_library (const char * system_dir,
const char * user_dir,
FacadePhraseIndex * phrase_index,
const pinyin_table_info_t * table_info){
/* check whether the sub phrase index is already loaded. */
PhraseIndexRange range;
guint8 index = table_info->m_dict_index;
int retval = phrase_index->get_range(index, range);
if (ERROR_OK == retval)
return false;
if (SYSTEM_FILE == table_info->m_file_type) {
/* system phrase library */
MemoryChunk * chunk = new MemoryChunk;
const char * systemfilename = table_info->m_system_filename;
/* check bin file in system dir. */
gchar * chunkfilename = g_build_filename(system_dir,
systemfilename, NULL);
#ifdef LIBPINYIN_USE_MMAP
if (!chunk->mmap(chunkfilename))
fprintf(stderr, "mmap %s failed!\n", chunkfilename);
#else
if (!chunk->load(chunkfilename))
fprintf(stderr, "open %s failed!\n", chunkfilename);
#endif
g_free(chunkfilename);
phrase_index->load(index, chunk);
const char * userfilename = table_info->m_user_filename;
chunkfilename = g_build_filename(user_dir,
userfilename, NULL);
MemoryChunk * log = new MemoryChunk;
log->load(chunkfilename);
g_free(chunkfilename);
/* merge the chunk log. */
phrase_index->merge(index, log);
return true;
}
if (DICTIONARY == table_info->m_file_type) {
/* addon dictionary. */
MemoryChunk * chunk = new MemoryChunk;
const char * systemfilename = table_info->m_system_filename;
/* check bin file in system dir. */
gchar * chunkfilename = g_build_filename(system_dir,
systemfilename, NULL);
#ifdef LIBPINYIN_USE_MMAP
if (!chunk->mmap(chunkfilename))
fprintf(stderr, "mmap %s failed!\n", chunkfilename);
#else
if (!chunk->load(chunkfilename))
fprintf(stderr, "open %s failed!\n", chunkfilename);
#endif
g_free(chunkfilename);
phrase_index->load(index, chunk);
return true;
}
if (USER_FILE == table_info->m_file_type) {
/* user phrase library */
MemoryChunk * chunk = new MemoryChunk;
const char * userfilename = table_info->m_user_filename;
gchar * chunkfilename = g_build_filename(user_dir,
userfilename, NULL);
/* check bin file exists. if not, create a new one. */
if (chunk->load(chunkfilename)) {
phrase_index->load(index, chunk);
} else {
delete chunk;
phrase_index->create_sub_phrase(index);
}
g_free(chunkfilename);
return true;
}
return false;
}
pinyin_context_t * pinyin_init(const char * systemdir, const char * userdir){
pinyin_context_t * context = new pinyin_context_t;
context->m_options = USE_TONE;
context->m_system_dir = g_strdup(systemdir);
context->m_user_dir = g_strdup(userdir);
context->m_modified = false;
gchar * filename = g_build_filename
(context->m_system_dir, SYSTEM_TABLE_INFO, NULL);
if (!context->m_system_table_info.load(filename)) {
fprintf(stderr, "load %s failed!\n", filename);
return NULL;
}
g_free(filename);
check_format(context);
context->m_full_pinyin_parser = new FullPinyinParser2;
context->m_double_pinyin_parser = new DoublePinyinParser2;
context->m_chewing_parser = new ChewingParser2;
/* load chewing table. */
context->m_pinyin_table = new FacadeChewingTable;
/* load system chewing table. */
MemoryChunk * chunk = new MemoryChunk;
filename = g_build_filename
(context->m_system_dir, SYSTEM_PINYIN_INDEX, NULL);
#ifdef LIBPINYIN_USE_MMAP
if (!chunk->mmap(filename)) {
fprintf(stderr, "mmap %s failed!\n", filename);
return NULL;
}
#else
if (!chunk->load(filename)) {
fprintf(stderr, "open %s failed!\n", filename);
return NULL;
}
#endif
g_free(filename);
/* load user chewing table */
MemoryChunk * userchunk = new MemoryChunk;
filename = g_build_filename
(context->m_user_dir, USER_PINYIN_INDEX, NULL);
if (!userchunk->load(filename)) {
/* hack here: use local Chewing Table to create empty memory chunk. */
ChewingLargeTable table(context->m_options);
table.store(userchunk);
}
g_free(filename);
context->m_pinyin_table->load(context->m_options, chunk, userchunk);
/* load phrase table */
context->m_phrase_table = new FacadePhraseTable2;
/* load system phrase table */
chunk = new MemoryChunk;
filename = g_build_filename
(context->m_system_dir, SYSTEM_PHRASE_INDEX, NULL);
#ifdef LIBPINYIN_USE_MMAP
if (!chunk->mmap(filename)) {
fprintf(stderr, "mmap %s failed!\n", filename);
return NULL;
}
#else
if (!chunk->load(filename)) {
fprintf(stderr, "open %s failed!\n", filename);
return NULL;
}
#endif
g_free(filename);
/* load user phrase table */
userchunk = new MemoryChunk;
filename = g_build_filename
(context->m_user_dir, USER_PHRASE_INDEX, NULL);
if (!userchunk->load(filename)) {
/* hack here: use local Phrase Table to create empty memory chunk. */
PhraseLargeTable2 table;
table.store(userchunk);
}
g_free(filename);
context->m_phrase_table->load(chunk, userchunk);
context->m_phrase_index = new FacadePhraseIndex;
/* load all default tables. */
for (size_t i = 0; i < PHRASE_INDEX_LIBRARY_COUNT; ++i){
const pinyin_table_info_t * phrase_files =
context->m_system_table_info.get_default_tables();
const pinyin_table_info_t * table_info =
phrase_files + i;
/* addon dictionary should not in default tables. */
assert(DICTIONARY != table_info->m_file_type);
_load_phrase_library(context->m_system_dir, context->m_user_dir,
context->m_phrase_index, table_info);
}
context->m_system_bigram = new Bigram;
filename = g_build_filename(context->m_system_dir, SYSTEM_BIGRAM, NULL);
context->m_system_bigram->attach(filename, ATTACH_READONLY);
g_free(filename);
context->m_user_bigram = new Bigram;
filename = g_build_filename(context->m_user_dir, USER_BIGRAM, NULL);
context->m_user_bigram->load_db(filename);
g_free(filename);
gfloat lambda = context->m_system_table_info.get_lambda();
context->m_pinyin_lookup = new PinyinLookup2
( lambda, context->m_options,
context->m_pinyin_table, context->m_phrase_index,
context->m_system_bigram, context->m_user_bigram);
context->m_phrase_lookup = new PhraseLookup
(lambda,
context->m_phrase_table, context->m_phrase_index,
context->m_system_bigram, context->m_user_bigram);
/* load addon chewing table. */
context->m_addon_pinyin_table = new FacadeChewingTable;
/* load addon system chewing table. */
chunk = new MemoryChunk;
filename = g_build_filename
(context->m_system_dir, ADDON_SYSTEM_PINYIN_INDEX, NULL);
#ifdef LIBPINYIN_USE_MMAP
if (!chunk->mmap(filename)) {
fprintf(stderr, "mmap %s failed!\n", filename);
return NULL;
}
#else
if (!chunk->load(filename)) {
fprintf(stderr, "open %s failed!\n", filename);
return NULL;
}
#endif
g_free(filename);
context->m_addon_pinyin_table->load(context->m_options, chunk, NULL);
/* load addon phrase table */
context->m_addon_phrase_table = new FacadePhraseTable2;
/* load addon system phrase table */
chunk = new MemoryChunk;
filename = g_build_filename
(context->m_system_dir, ADDON_SYSTEM_PHRASE_INDEX, NULL);
#ifdef LIBPINYIN_USE_MMAP
if (!chunk->mmap(filename)) {
fprintf(stderr, "mmap %s failed!\n", filename);
return NULL;
}
#else
if (!chunk->load(filename)) {
fprintf(stderr, "open %s failed!\n", filename);
return NULL;
}
#endif
g_free(filename);
context->m_addon_phrase_table->load(chunk, NULL);
context->m_addon_phrase_index = new FacadePhraseIndex;
/* don't load addon phrase libraries. */
return context;
}
bool pinyin_load_phrase_library(pinyin_context_t * context,
TABLE_TARGET target,
guint8 index){
if (!(index < PHRASE_INDEX_LIBRARY_COUNT))
return false;
const pinyin_table_info_t * phrase_files = NULL;
FacadePhraseIndex * phrase_index = NULL;
const pinyin_table_info_t * table_info = NULL;
if (DEFAULT_TABLE == target) {
phrase_files = context->m_system_table_info.get_default_tables();
phrase_index = context->m_phrase_index;
table_info = phrase_files + index;
/* Only SYSTEM_FILE or USER_FILE is allowed here. */
assert(SYSTEM_FILE == table_info->m_file_type
|| USER_FILE == table_info->m_file_type);
}
if (ADDON_TABLE == target) {
phrase_files = context->m_system_table_info.get_addon_tables();
phrase_index = context->m_addon_phrase_index;
table_info = phrase_files + index;
/* Only DICTIONARY is allowed here. */
assert(DICTIONARY == table_info->m_file_type);
}
_load_phrase_library(context->m_system_dir, context->m_user_dir,
phrase_index, table_info);
return false;
}
bool pinyin_unload_phrase_library(pinyin_context_t * context,
TABLE_TARGET target,
guint8 index){
assert(index < PHRASE_INDEX_LIBRARY_COUNT);
/* default table. */
if (DEFAULT_TABLE == target) {
/* only GBK table can be unloaded. */
if (GBK_DICTIONARY != index)
return false;
context->m_phrase_index->unload(index);
return true;
}
/* addon table. */
if (ADDON_TABLE == target) {
context->m_addon_phrase_index->unload(index);
return true;
}
return false;
}
import_iterator_t * pinyin_begin_add_phrases(pinyin_context_t * context,
guint8 index){
import_iterator_t * iter = new import_iterator_t;
iter->m_context = context;
iter->m_phrase_index = index;
return iter;
}
bool pinyin_iterator_add_phrase(import_iterator_t * iter,
const char * phrase,
const char * pinyin,
gint count){
/* if -1 == count, use the default value. */
const gint default_count = 5;
const guint32 unigram_factor = 3;
if (-1 == count)
count = default_count;
pinyin_context_t * & context = iter->m_context;
FacadePhraseTable2 * & phrase_table = context->m_phrase_table;
FacadeChewingTable * & pinyin_table = context->m_pinyin_table;
FacadePhraseIndex * & phrase_index = context->m_phrase_index;
bool result = false;
if (NULL == phrase || NULL == pinyin)
return result;
/* check whether the phrase exists in phrase table */
glong len_phrase = 0;
ucs4_t * ucs4_phrase = g_utf8_to_ucs4(phrase, -1, NULL, &len_phrase, NULL);
pinyin_option_t options = PINYIN_CORRECT_ALL | USE_TONE;
FullPinyinParser2 parser;
ChewingKeyVector keys =
g_array_new(FALSE, FALSE, sizeof(ChewingKey));
ChewingKeyRestVector key_rests =
g_array_new(FALSE, FALSE, sizeof(ChewingKeyRest));
/* parse the pinyin. */
parser.parse(options, keys, key_rests, pinyin, strlen(pinyin));
if (len_phrase != keys->len)
return result;
if (0 == len_phrase || len_phrase >= MAX_PHRASE_LENGTH)
return result;
phrase_token_t token = null_token;
GArray * tokenarray = g_array_new(FALSE, FALSE, sizeof(phrase_token_t));
/* do phrase table search. */
PhraseTokens tokens;
memset(tokens, 0, sizeof(PhraseTokens));
phrase_index->prepare_tokens(tokens);
int retval = phrase_table->search(len_phrase, ucs4_phrase, tokens);
int num = reduce_tokens(tokens, tokenarray);
phrase_index->destroy_tokens(tokens);
/* find the best token candidate. */
for (size_t i = 0; i < tokenarray->len; ++i) {
phrase_token_t candidate = g_array_index(tokenarray, phrase_token_t, i);
if (null_token == token) {
token = candidate;
continue;
}
if (PHRASE_INDEX_LIBRARY_INDEX(candidate) == iter->m_phrase_index) {
/* only one phrase string per sub phrase index. */
assert(PHRASE_INDEX_LIBRARY_INDEX(token) != iter->m_phrase_index);
token = candidate;
continue;
}
}
g_array_free(tokenarray, TRUE);
PhraseItem item;
/* check whether it exists in the same sub phrase index; */
if (null_token != token &&
PHRASE_INDEX_LIBRARY_INDEX(token) == iter->m_phrase_index) {
/* if so, remove the phrase, add the pinyin for the phrase item,
then add it back;*/
phrase_index->get_phrase_item(token, item);
assert(len_phrase == item.get_phrase_length());
ucs4_t tmp_phrase[MAX_PHRASE_LENGTH];
item.get_phrase_string(tmp_phrase);
assert(0 == memcmp
(ucs4_phrase, tmp_phrase, sizeof(ucs4_t) * len_phrase));
PhraseItem * removed_item = NULL;
retval = phrase_index->remove_phrase_item(token, removed_item);
if (ERROR_OK == retval) {
/* maybe check whether there are duplicated pronunciations here. */
removed_item->add_pronunciation((ChewingKey *)keys->data,
count);
phrase_index->add_phrase_item(token, removed_item);
delete removed_item;
result = true;
}
} else {
/* if not exists in the same sub phrase index,
get the maximum token,
then add it directly with maximum token + 1; */
PhraseIndexRange range;
retval = phrase_index->get_range(iter->m_phrase_index, range);
if (ERROR_OK == retval) {
token = range.m_range_end;
if (0x00000000 == (token & PHRASE_MASK))
token++;
if (len_phrase == keys->len) { /* valid pinyin */
phrase_table->add_index(len_phrase, ucs4_phrase, token);
pinyin_table->add_index
(keys->len, (ChewingKey *)(keys->data), token);
item.set_phrase_string(len_phrase, ucs4_phrase);
item.add_pronunciation((ChewingKey *)(keys->data), count);
phrase_index->add_phrase_item(token, &item);
phrase_index->add_unigram_frequency(token,
count * unigram_factor);
result = true;
}
}
}
g_array_free(key_rests, TRUE);
g_array_free(keys, TRUE);
g_free(ucs4_phrase);
return result;
}
void pinyin_end_add_phrases(import_iterator_t * iter){
/* compact the content memory chunk of phrase index. */
iter->m_context->m_phrase_index->compact();
iter->m_context->m_modified = true;
delete iter;
}
export_iterator_t * pinyin_begin_get_phrases(pinyin_context_t * context,
guint index){
export_iterator_t * iter = new export_iterator_t;
iter->m_context = context;
iter->m_phrase_index = index;
iter->m_next_token = null_token;
iter->m_next_pronunciation = 0;
/* probe next token. */
PhraseIndexRange range;
int retval = iter->m_context->m_phrase_index->get_range
(iter->m_phrase_index, range);
if (retval != ERROR_OK)
return iter;
PhraseItem item;
phrase_token_t token = range.m_range_begin;
for (; token < range.m_range_end; ++token) {
retval = iter->m_context->m_phrase_index->get_phrase_item
(token, item);
if (ERROR_OK == retval && item.get_n_pronunciation() >= 1) {
iter->m_next_token = token;
break;
}
}
return iter;
}
bool pinyin_iterator_has_next_phrase(export_iterator_t * iter){
/* no next token. */
if (null_token == iter->m_next_token)
return false;
return true;
}
/* phrase, pinyin should be freed by g_free(). */
bool pinyin_iterator_get_next_phrase(export_iterator_t * iter,
gchar ** phrase,
gchar ** pinyin,
gint * count){
/* count "-1" means default count. */
*phrase = NULL; *pinyin = NULL; *count = -1;
PhraseItem item;
int retval = iter->m_context->m_phrase_index->get_phrase_item
(iter->m_next_token, item);
/* assume valid next token from previous call. */
assert(ERROR_OK == retval);
/* fill phrase and pronunciation pair. */
ucs4_t phrase_ucs4[MAX_PHRASE_LENGTH];
guint8 len = item.get_phrase_length();
assert(item.get_phrase_string(phrase_ucs4));
gchar * phrase_utf8 = g_ucs4_to_utf8
(phrase_ucs4, len, NULL, NULL, NULL);
guint8 nth_pronun = iter->m_next_pronunciation;
guint8 n_pronuns = item.get_n_pronunciation();
/* assume valid pronunciation from previous call. */
assert(nth_pronun < n_pronuns);
ChewingKey keys[MAX_PHRASE_LENGTH];
guint32 freq = 0;
assert(item.get_nth_pronunciation(nth_pronun, keys, freq));
GPtrArray * array = g_ptr_array_new();
for(size_t i = 0; i < len; ++i) {
g_ptr_array_add(array, keys[i].get_pinyin_string());
}
g_ptr_array_add(array, NULL);
gchar ** strings = (gchar **)g_ptr_array_free(array, FALSE);
gchar * pinyins = g_strjoinv("'", strings);
g_strfreev(strings);
/* use default value. */
*phrase = phrase_utf8; *pinyin = pinyins;
if (freq > 0)
*count = freq;
/* probe next pronunciation. */
nth_pronun ++;
if (nth_pronun < n_pronuns) {
iter->m_next_pronunciation = nth_pronun;
return true;
}
iter->m_next_pronunciation = 0;
/* probe next token. */
PhraseIndexRange range;
retval = iter->m_context->m_phrase_index->get_range
(iter->m_phrase_index, range);
if (retval != ERROR_OK) {
iter->m_next_token = null_token;
return true;
}
phrase_token_t token = iter->m_next_token + 1;
iter->m_next_token = null_token;
for (; token < range.m_range_end; ++token) {
retval = iter->m_context->m_phrase_index->get_phrase_item
(token, item);
if (ERROR_OK == retval && item.get_n_pronunciation() >= 1) {
iter->m_next_token = token;
break;
}
}
return true;
}
void pinyin_end_get_phrases(export_iterator_t * iter){
delete iter;
}
bool pinyin_save(pinyin_context_t * context){
if (!context->m_user_dir)
return false;
if (!context->m_modified)
return false;
context->m_phrase_index->compact();
const pinyin_table_info_t * phrase_files =
context->m_system_table_info.get_default_tables();
/* skip the reserved zero phrase library. */
for (size_t i = 1; i < PHRASE_INDEX_LIBRARY_COUNT; ++i) {
PhraseIndexRange range;
int retval = context->m_phrase_index->get_range(i, range);
if (ERROR_NO_SUB_PHRASE_INDEX == retval)
continue;
const pinyin_table_info_t * table_info = phrase_files + i;
if (NOT_USED == table_info->m_file_type)
continue;
const char * userfilename = table_info->m_user_filename;
if (NULL == userfilename)
continue;
if (SYSTEM_FILE == table_info->m_file_type ||
DICTIONARY == table_info->m_file_type) {
/* system phrase library */
MemoryChunk * chunk = new MemoryChunk;
MemoryChunk * log = new MemoryChunk;
const char * systemfilename = table_info->m_system_filename;
/* check bin file in system dir. */
gchar * chunkfilename = g_build_filename(context->m_system_dir,
systemfilename, NULL);
#ifdef LIBPINYIN_USE_MMAP
if (!chunk->mmap(chunkfilename))
fprintf(stderr, "mmap %s failed!\n", chunkfilename);
#else
if (!chunk->load(chunkfilename))
fprintf(stderr, "open %s failed!\n", chunkfilename);
#endif
g_free(chunkfilename);
context->m_phrase_index->diff(i, chunk, log);
const char * userfilename = table_info->m_user_filename;
gchar * tmpfilename = g_strdup_printf("%s.tmp", userfilename);
gchar * tmppathname = g_build_filename(context->m_user_dir,
tmpfilename, NULL);
g_free(tmpfilename);
gchar * chunkpathname = g_build_filename(context->m_user_dir,
userfilename, NULL);
log->save(tmppathname);
int result = rename(tmppathname, chunkpathname);
if (0 != result)
fprintf(stderr, "rename %s to %s failed.\n",
tmppathname, chunkpathname);
g_free(chunkpathname);
g_free(tmppathname);
delete log;
}
if (USER_FILE == table_info->m_file_type) {
/* user phrase library */
MemoryChunk * chunk = new MemoryChunk;
context->m_phrase_index->store(i, chunk);
const char * userfilename = table_info->m_user_filename;
gchar * tmpfilename = g_strdup_printf("%s.tmp", userfilename);
gchar * tmppathname = g_build_filename(context->m_user_dir,
tmpfilename, NULL);
g_free(tmpfilename);
gchar * chunkpathname = g_build_filename(context->m_user_dir,
userfilename, NULL);
chunk->save(tmppathname);
int result = rename(tmppathname, chunkpathname);
if (0 != result)
fprintf(stderr, "rename %s to %s failed.\n",
tmppathname, chunkpathname);
g_free(chunkpathname);
g_free(tmppathname);
delete chunk;
}
}
/* save user pinyin table */
gchar * tmpfilename = g_build_filename
(context->m_user_dir, USER_PINYIN_INDEX ".tmp", NULL);
unlink(tmpfilename);
gchar * filename = g_build_filename
(context->m_user_dir, USER_PINYIN_INDEX, NULL);
MemoryChunk * chunk = new MemoryChunk;
context->m_pinyin_table->store(chunk);
chunk->save(tmpfilename);
delete chunk;
int result = rename(tmpfilename, filename);
if (0 != result)
fprintf(stderr, "rename %s to %s failed.\n",
tmpfilename, filename);
g_free(tmpfilename);
g_free(filename);
/* save user phrase table */
tmpfilename = g_build_filename
(context->m_user_dir, USER_PHRASE_INDEX ".tmp", NULL);
unlink(tmpfilename);
filename = g_build_filename
(context->m_user_dir, USER_PHRASE_INDEX, NULL);
chunk = new MemoryChunk;
context->m_phrase_table->store(chunk);
chunk->save(tmpfilename);
delete chunk;
result = rename(tmpfilename, filename);
if (0 != result)
fprintf(stderr, "rename %s to %s failed.\n",
tmpfilename, filename);
g_free(tmpfilename);
g_free(filename);
/* save user bi-gram */
tmpfilename = g_build_filename
(context->m_user_dir, USER_BIGRAM ".tmp", NULL);
unlink(tmpfilename);
filename = g_build_filename(context->m_user_dir, USER_BIGRAM, NULL);
context->m_user_bigram->save_db(tmpfilename);
result = rename(tmpfilename, filename);
if (0 != result)
fprintf(stderr, "rename %s to %s failed.\n",
tmpfilename, filename);
g_free(tmpfilename);
g_free(filename);
mark_version(context);
context->m_modified = false;
return true;
}
bool pinyin_set_double_pinyin_scheme(pinyin_context_t * context,
DoublePinyinScheme scheme){
context->m_double_pinyin_parser->set_scheme(scheme);
return true;
}
bool pinyin_set_chewing_scheme(pinyin_context_t * context,
ChewingScheme scheme){
context->m_chewing_parser->set_scheme(scheme);
return true;
}
void pinyin_fini(pinyin_context_t * context){
delete context->m_full_pinyin_parser;
delete context->m_double_pinyin_parser;
delete context->m_chewing_parser;
delete context->m_pinyin_table;
delete context->m_phrase_table;
delete context->m_phrase_index;
delete context->m_system_bigram;
delete context->m_user_bigram;
delete context->m_pinyin_lookup;
delete context->m_phrase_lookup;
delete context->m_addon_pinyin_table;
delete context->m_addon_phrase_table;
delete context->m_addon_phrase_index;
g_free(context->m_system_dir);
g_free(context->m_user_dir);
context->m_modified = false;
delete context;
}
bool pinyin_mask_out(pinyin_context_t * context,
phrase_token_t mask,
phrase_token_t value) {
context->m_pinyin_table->mask_out(mask, value);
context->m_phrase_table->mask_out(mask, value);
context->m_user_bigram->mask_out(mask, value);
const pinyin_table_info_t * phrase_files =
context->m_system_table_info.get_default_tables();
/* mask out the phrase index. */
for (size_t index = 1; index < PHRASE_INDEX_LIBRARY_COUNT; ++index) {
PhraseIndexRange range;
int retval = context->m_phrase_index->get_range(index, range);
if (ERROR_NO_SUB_PHRASE_INDEX == retval)
continue;
const pinyin_table_info_t * table_info = phrase_files + index;