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/*
* libpinyin
* Library to deal with pinyin.
*
* Copyright (C) 2016 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.
*/
#ifndef FACADE_CHEWING_TABLE2_H
#define FACADE_CHEWING_TABLE2_H
#include "novel_types.h"
#include "chewing_large_table2.h"
namespace pinyin{
/**
* FacadeChewingTable2:
*
* The facade class of chewing large table2.
*
*/
class FacadeChewingTable2{
private:
ChewingLargeTable2 * m_system_chewing_table;
ChewingLargeTable2 * m_user_chewing_table;
void reset() {
if (m_system_chewing_table) {
delete m_system_chewing_table;
m_system_chewing_table = NULL;
}
if (m_user_chewing_table) {
delete m_user_chewing_table;
m_user_chewing_table = NULL;
}
}
public:
/**
* FacadeChewingTable2::FacadeChewingTable2:
*
* The constructor of the FacadeChewingTable2.
*
*/
FacadeChewingTable2() {
m_system_chewing_table = NULL;
m_user_chewing_table = NULL;
}
/**
* FacadeChewingTable2::~FacadeChewingTable2:
*
* The destructor of the FacadeChewingTable2.
*
*/
~FacadeChewingTable2() {
reset();
}
bool load(const char * system_filename,
const char * user_filename) {
reset();
bool result = false;
if (system_filename) {
m_system_chewing_table = new ChewingLargeTable2;
result = m_system_chewing_table->attach
(system_filename, ATTACH_READONLY) || result;
}
if (user_filename) {
m_user_chewing_table = new ChewingLargeTable2;
result = m_user_chewing_table->load_db
(user_filename) || result;
}
return result;
}
bool store(const char * new_user_filename) {
if (NULL == m_user_chewing_table)
return false;
return m_user_chewing_table->store_db(new_user_filename);
}
/**
* FacadeChewingTable2::search:
* @phrase_length: the length of the phrase to be searched.
* @keys: the pinyin key of the phrase to be searched.
* @ranges: the array of GArrays to store the matched phrase token.
* @returns: the search result of enum SearchResult.
*
* Search the phrase tokens according to the pinyin keys.
*
*/
int search(int phrase_length, /* in */ const ChewingKey keys[],
/* out */ PhraseIndexRanges ranges) const {
#if 0
/* clear ranges. */
for (size_t i = 0; i < PHRASE_INDEX_LIBRARY_COUNT; ++i) {
if (ranges[i])
g_array_set_size(ranges[i], 0);
}
#endif
int result = SEARCH_NONE;
if (NULL != m_system_chewing_table)
result |= m_system_chewing_table->search
(phrase_length, keys, ranges);
if (NULL != m_user_chewing_table)
result |= m_user_chewing_table->search
(phrase_length, keys, ranges);
return result;
}
/**
* FacadeChewingTable2::add_index:
* @phrase_length: the length of the phrase to be added.
* @keys: the pinyin keys of the phrase to be added.
* @token: the token of the phrase to be added.
* @returns: the add result of enum ErrorResult.
*
* Add the phrase token to the user chewing table.
*
*/
int add_index(int phrase_length, /* in */ const ChewingKey keys[],
/* in */ phrase_token_t token) {
if (NULL == m_user_chewing_table)
return ERROR_NO_USER_TABLE;
return m_user_chewing_table->add_index(phrase_length, keys, token);
}
/**
* FacadeChewingTable2::remove_index:
* @phrase_length: the length of the phrase to be removed.
* @keys: the pinyin keys of the phrase to be removed.
* @token: the token of the phrase to be removed.
* @returns: the remove result of enum ErrorResult.
*
* Remove the phrase token from the user chewing table.
*
*/
int remove_index(int phrase_length, /* in */ const ChewingKey keys[],
/* in */ phrase_token_t token) {
if (NULL == m_user_chewing_table)
return ERROR_NO_USER_TABLE;
return m_user_chewing_table->remove_index(phrase_length, keys, token);
}
/**
* FacadeChewingTable2::mask_out:
* @mask: the mask.
* @value: the value.
* @returns: whether the mask out operation is successful.
*
* Mask out the matched chewing index.
*
*/
bool mask_out(phrase_token_t mask, phrase_token_t value) {
if (NULL == m_user_chewing_table)
return false;
return m_user_chewing_table->mask_out(mask, value);
}
};
};
#endif
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