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Diffstat (limited to 'src/storage/facade_chewing_table.h')
| -rw-r--r-- | src/storage/facade_chewing_table.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/src/storage/facade_chewing_table.h b/src/storage/facade_chewing_table.h new file mode 100644 index 0000000..474311c --- /dev/null +++ b/src/storage/facade_chewing_table.h @@ -0,0 +1,216 @@ +/* + * 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. + */ + +#ifndef FACADE_CHEWING_TABLE_H +#define FACADE_CHEWING_TABLE_H + +#include "novel_types.h" +#include "chewing_large_table.h" + +namespace pinyin{ + +/** + * FacadeChewingTable: + * + * The facade class of chewing large table. + * + */ + +class FacadeChewingTable{ +private: + ChewingLargeTable * m_system_chewing_table; + ChewingLargeTable * 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: + /** + * FacadeChewingTable::FacadeChewingTable: + * + * The constructor of the FacadeChewingTable. + * + */ + FacadeChewingTable() { + m_system_chewing_table = NULL; + m_user_chewing_table = NULL; + } + + /** + * FacadeChewingTable::~FacadeChewingTable: + * + * The destructor of the FacadeChewingTable. + * + */ + ~FacadeChewingTable() { + reset(); + } + + /** + * FacadeChewingTable::set_options: + * @options: the pinyin options. + * @returns: whether the setting options is successful. + * + * Set the options of the system and user chewing table. + * + */ + bool set_options(pinyin_option_t options) { + bool result = false; + if (m_system_chewing_table) + result = m_system_chewing_table->set_options(options) || result; + if (m_user_chewing_table) + result = m_user_chewing_table->set_options(options) || result; + return result; + } + + /** + * FacadeChewingTable::load: + * @options: the pinyin options. + * @system: the memory chunk of the system chewing table. + * @user: the memory chunk of the user chewing table. + * @returns: whether the load operation is successful. + * + * Load the system or user chewing table from the memory chunks. + * + */ + bool load(pinyin_option_t options, MemoryChunk * system, + MemoryChunk * user){ + reset(); + + bool result = false; + if (system) { + m_system_chewing_table = new ChewingLargeTable(options); + result = m_system_chewing_table->load(system) || result; + } + if (user) { + m_user_chewing_table = new ChewingLargeTable(options); + result = m_user_chewing_table->load(user) || result; + } + return result; + } + + /** + * FacadeChewingTable::store: + * @new_user: the memory chunk to store the user chewing table. + * @returns: whether the store operation is successful. + * + * Store the user chewing table to the memory chunk. + * + */ + bool store(MemoryChunk * new_user) { + if (NULL == m_user_chewing_table) + return false; + return m_user_chewing_table->store(new_user); + } + + /** + * FacadeChewingTable::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 { + + /* clear ranges. */ + for (size_t i = 0; i < PHRASE_INDEX_LIBRARY_COUNT; ++i) { + if (ranges[i]) + g_array_set_size(ranges[i], 0); + } + + 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; + } + + /** + * FacadeChewingTable::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); + } + + /** + * FacadeChewingTable::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); + } + + /** + * FacadeChewingTable::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 |