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-rw-r--r--src/storage/chewing_large_table.h154
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diff --git a/src/storage/chewing_large_table.h b/src/storage/chewing_large_table.h
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-/*
- * libzhuyin
- * Library to deal with zhuyin.
- *
- * 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 CHEWING_LARGE_TABLE_H
-#define CHEWING_LARGE_TABLE_H
-
-
-#include <stdio.h>
-#include "novel_types.h"
-#include "memory_chunk.h"
-#include "chewing_key.h"
-
-namespace zhuyin{
-
-class ChewingLengthIndexLevel;
-
-class ChewingBitmapIndexLevel{
-
-protected:
- pinyin_option_t m_options;
-
-protected:
- ChewingLengthIndexLevel * m_chewing_length_indexes
- [CHEWING_NUMBER_OF_INITIALS][CHEWING_NUMBER_OF_MIDDLES]
- [CHEWING_NUMBER_OF_FINALS][CHEWING_NUMBER_OF_TONES];
-
- /* search functions */
- int initial_level_search(int phrase_length,
- /* in */ const ChewingKey keys[],
- /* out */ PhraseIndexRanges ranges) const;
-
- int middle_and_final_level_search(ChewingInitial initial,
- int phrase_length,
- /* in */ const ChewingKey keys[],
- /* out */ PhraseIndexRanges ranges) const;
- int tone_level_search(ChewingInitial initial, ChewingMiddle middle,
- ChewingFinal final, int phrase_length,
- /* in */ const ChewingKey keys[],
- /* out */ PhraseIndexRanges ranges) const;
-
- void reset();
-
-public:
- /* constructor/destructor */
- ChewingBitmapIndexLevel(pinyin_option_t options);
- ~ChewingBitmapIndexLevel() { reset(); }
-
- /* set options method */
- bool set_options(pinyin_option_t options) {
- m_options = options;
- return true;
- }
-
- /* load/store method */
- bool load(MemoryChunk * chunk, table_offset_t offset, table_offset_t end);
- bool store(MemoryChunk * new_chunk, table_offset_t offset,
- table_offset_t & end);
-
- /* search method */
- int search(int phrase_length, /* in */ const ChewingKey keys[],
- /* out */ PhraseIndexRanges ranges) const;
-
- /* add/remove index method */
- int add_index(int phrase_length, /* in */ const ChewingKey keys[],
- /* in */ phrase_token_t token);
- int remove_index(int phrase_length, /* in */ const ChewingKey keys[],
- /* in */ phrase_token_t token);
-
- /* mask out method */
- bool mask_out(phrase_token_t mask, phrase_token_t value);
-};
-
-
-class ChewingLargeTable{
-protected:
- ChewingBitmapIndexLevel m_bitmap_table;
- MemoryChunk * m_chunk;
-
- void reset(){
- if (m_chunk) {
- delete m_chunk; m_chunk = NULL;
- }
- }
-
-public:
- /* constructor/destructor */
- ChewingLargeTable(pinyin_option_t options):
- m_bitmap_table(options), m_chunk(NULL) {}
-
- ~ChewingLargeTable() { reset(); }
-
- /* set options method */
- bool set_options(pinyin_option_t options) {
- return m_bitmap_table.set_options(options);
- }
-
- /* load/store method */
- bool load(MemoryChunk * chunk) {
- reset();
- m_chunk = chunk;
- return m_bitmap_table.load(chunk, 0, chunk->size());
- }
-
- bool store(MemoryChunk * new_chunk) {
- table_offset_t end;
- return m_bitmap_table.store(new_chunk, 0, end);
- }
-
- bool load_text(FILE * file);
-
- /* search method */
- int search(int phrase_length, /* in */ const ChewingKey keys[],
- /* out */ PhraseIndexRanges ranges) const {
- return m_bitmap_table.search(phrase_length, keys, ranges);
- }
-
- /* add/remove index method */
- int add_index(int phrase_length, /* in */ const ChewingKey keys[],
- /* in */ phrase_token_t token) {
- return m_bitmap_table.add_index(phrase_length, keys, token);
- }
-
- int remove_index(int phrase_length, /* in */ const ChewingKey keys[],
- /* in */ phrase_token_t token) {
- return m_bitmap_table.remove_index(phrase_length, keys, token);
- }
-
- /* mask out method */
- bool mask_out(phrase_token_t mask, phrase_token_t value) {
- return m_bitmap_table.mask_out(mask, value);
- }
-};
-
-};
-
-#endif