3 * Library to deal with pinyin.
5 * Copyright (C) 2010 Peng Wu
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
22 #ifndef PHRASE_LARGE_TABLE_H
23 #define PHRASE_LARGE_TABLE_H
26 #include "novel_types.h"
27 #include "memory_chunk.h"
31 const size_t PHRASE_NUMBER_OF_BITMAP_INDEX = 1<<(sizeof(ucs4_t) / 4 * 8);
33 class PhraseLengthIndexLevel;
35 class PhraseBitmapIndexLevel{
37 PhraseLengthIndexLevel * m_phrase_length_indexes[PHRASE_NUMBER_OF_BITMAP_INDEX];
38 /* use a half ucs4_t for class PhraseLengthIndexLevel, just like PinyinLengthIndexLevel. */
41 PhraseBitmapIndexLevel();
42 ~PhraseBitmapIndexLevel(){
46 /* load/store method */
47 bool load(MemoryChunk * chunk, table_offset_t offset, table_offset_t end);
48 bool store(MemoryChunk * new_chunk, table_offset_t offset, table_offset_t & end);
50 /* search/add_index/remove_index method */
51 int search( int phrase_length, /* in */ ucs4_t phrase[],
52 /* out */ phrase_token_t & token);
54 int add_index( int phrase_length, /* in */ ucs4_t phrase[], /* in */ phrase_token_t token);
55 int remove_index( int phrase_length, /* in */ ucs4_t phrase[], /* out */ phrase_token_t & token);
58 class PhraseLargeTable{
60 PhraseBitmapIndexLevel m_bitmap_table;
61 MemoryChunk * m_chunk;
78 /* load/store method */
79 bool load(MemoryChunk * chunk){
82 return m_bitmap_table.load(chunk, 0, chunk->size());
85 bool store(MemoryChunk * new_chunk){
87 return m_bitmap_table.store(new_chunk, 0, end);
90 bool load_text(FILE * file);
92 /* search/add_index/remove_index method */
93 int search( int phrase_length, /* in */ ucs4_t phrase[],
94 /* out */ phrase_token_t & token){
95 return m_bitmap_table.search(phrase_length, phrase, token);
98 int add_index( int phrase_length, /* in */ ucs4_t phrase[], /* in */ phrase_token_t token){
99 return m_bitmap_table.add_index(phrase_length, phrase, token);
102 int remove_index( int phrase_length, /* in */ ucs4_t phrase[], /* out */ phrase_token_t & token){
103 return m_bitmap_table.remove_index(phrase_length, phrase, token);