3 * Library to deal with pinyin.
5 * Copyright (C) 2011 Peng Wu <alexepico@gmail.com>
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 CHEWING_LARGE_TABLE_H
23 #define CHEWING_LARGE_TABLE_H
26 #include "novel_types.h"
27 #include "memory_chunk.h"
28 #include "chewing_key.h"
32 class ChewingLengthIndexLevel;
34 class ChewingBitmapIndexLevel{
37 pinyin_option_t m_options;
40 ChewingLengthIndexLevel * m_chewing_length_indexes
41 [CHEWING_NUMBER_OF_INITIALS][CHEWING_NUMBER_OF_MIDDLES]
42 [CHEWING_NUMBER_OF_FINALS][CHEWING_NUMBER_OF_TONES];
44 /* search functions */
45 int initial_level_search(int phrase_length, /* in */ ChewingKey keys[],
46 /* out */ PhraseIndexRanges ranges) const;
48 int middle_and_final_level_search(ChewingInitial initial,
50 /* in */ ChewingKey keys[],
51 /* out */ PhraseIndexRanges ranges) const;
52 int tone_level_search(ChewingInitial initial, ChewingMiddle middle,
53 ChewingFinal final, int phrase_length,
54 /* in */ ChewingKey keys[],
55 /* out */ PhraseIndexRanges ranges) const;
60 /* constructor/destructor */
61 ChewingBitmapIndexLevel(pinyin_option_t options);
62 ~ChewingBitmapIndexLevel() { reset(); }
64 /* set options method */
65 bool set_options(pinyin_option_t options) {
70 /* load/store method */
71 bool load(MemoryChunk * chunk, table_offset_t offset, table_offset_t end);
72 bool store(MemoryChunk * new_chunk, table_offset_t offset,
73 table_offset_t & end);
76 int search(int phrase_length, /* in */ ChewingKey keys[],
77 /* out */ PhraseIndexRanges ranges) const;
78 /* add/remove index method */
79 int add_index(int phrase_length, /* in */ ChewingKey keys[],
80 /* in */ phrase_token_t token);
81 int remove_index(int phrase_length, /* in */ ChewingKey keys[],
82 /* in */ phrase_token_t token);
87 class ChewingLargeTable{
89 ChewingBitmapIndexLevel m_bitmap_table;
90 MemoryChunk * m_chunk;
94 delete m_chunk; m_chunk = NULL;
99 /* constructor/destructor */
100 ChewingLargeTable(pinyin_option_t options):
101 m_bitmap_table(options), m_chunk(NULL) {}
103 ~ChewingLargeTable() { reset(); }
105 /* set options method */
106 bool set_options(pinyin_option_t options) {
107 return m_bitmap_table.set_options(options);
110 /* load/store method */
111 bool load(MemoryChunk * chunk) {
114 return m_bitmap_table.load(chunk, 0, chunk->size());
117 bool store(MemoryChunk * new_chunk) {
119 return m_bitmap_table.store(new_chunk, 0, end);
122 bool load_text(FILE * file);
125 int search(int phrase_length, /* in */ ChewingKey keys[],
126 /* out */ PhraseIndexRanges ranges) const {
127 return m_bitmap_table.search(phrase_length, keys, ranges);
130 /* add/remove index method */
131 int add_index(int phrase_length, /* in */ ChewingKey keys[],
132 /* in */ phrase_token_t token) {
133 return m_bitmap_table.add_index(phrase_length, keys, token);
136 int remove_index(int phrase_length, /* in */ ChewingKey keys[],
137 /* in */ phrase_token_t token) {
138 return m_bitmap_table.remove_index(phrase_length, keys, token);