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
27 #include "novel_types.h"
28 #include "memory_chunk.h"
29 #include "chewing_key.h"
33 class ChewingLengthIndexLevel;
35 class ChewingBitmapIndexLevel{
38 pinyin_option_t m_options;
41 ChewingLengthIndexLevel * m_chewing_length_indexes
42 [CHEWING_NUMBER_OF_INITIALS][CHEWING_NUMBER_OF_MIDDLES]
43 [CHEWING_NUMBER_OF_FINALS][CHEWING_NUMBER_OF_TONES];
45 /* search functions */
46 int initial_level_search(int phrase_length, /* in */ ChewingKey keys[],
47 /* out */ PhraseIndexRanges ranges) const;
49 int middle_and_final_level_search(ChewingInitial initial,
51 /* in */ ChewingKey keys[],
52 /* out */ PhraseIndexRanges ranges) const;
53 int tone_level_search(ChewingInitial initial, ChewingMiddle middle,
54 ChewingFinal final, int phrase_length,
55 /* in */ ChewingKey keys[],
56 /* out */ PhraseIndexRanges ranges) const;
61 /* constructor/destructor */
62 ChewingBitmapIndexLevel(pinyin_option_t options);
63 ~ChewingBitmapIndexLevel() { reset(); }
65 /* set options method */
66 bool set_options(pinyin_option_t options) {
71 /* load/store method */
72 bool load(MemoryChunk * chunk, table_offset_t offset, table_offset_t end);
73 bool store(MemoryChunk * new_chunk, table_offset_t offset,
74 table_offset_t & end);
77 int search(int phrase_length, /* in */ ChewingKey keys[],
78 /* out */ PhraseIndexRanges ranges) const;
80 /* add/remove index method */
81 int add_index(int phrase_length, /* in */ ChewingKey keys[],
82 /* in */ phrase_token_t token);
83 int remove_index(int phrase_length, /* in */ ChewingKey keys[],
84 /* in */ phrase_token_t token);
87 bool mask_out(phrase_token_t mask, phrase_token_t value);
91 class ChewingLargeTable{
93 ChewingBitmapIndexLevel m_bitmap_table;
94 MemoryChunk * m_chunk;
98 delete m_chunk; m_chunk = NULL;
103 /* constructor/destructor */
104 ChewingLargeTable(pinyin_option_t options):
105 m_bitmap_table(options), m_chunk(NULL) {}
107 ~ChewingLargeTable() { reset(); }
109 /* set options method */
110 bool set_options(pinyin_option_t options) {
111 return m_bitmap_table.set_options(options);
114 /* load/store method */
115 bool load(MemoryChunk * chunk) {
118 return m_bitmap_table.load(chunk, 0, chunk->size());
121 bool store(MemoryChunk * new_chunk) {
123 return m_bitmap_table.store(new_chunk, 0, end);
126 bool load_text(FILE * file);
129 int search(int phrase_length, /* in */ ChewingKey keys[],
130 /* out */ PhraseIndexRanges ranges) const {
131 return m_bitmap_table.search(phrase_length, keys, ranges);
134 /* add/remove index method */
135 int add_index(int phrase_length, /* in */ ChewingKey keys[],
136 /* in */ phrase_token_t token) {
137 return m_bitmap_table.add_index(phrase_length, keys, token);
140 int remove_index(int phrase_length, /* in */ ChewingKey keys[],
141 /* in */ phrase_token_t token) {
142 return m_bitmap_table.remove_index(phrase_length, keys, token);
145 /* mask out method */
146 bool mask_out(phrase_token_t mask, phrase_token_t value) {
147 return m_bitmap_table.mask_out(mask, value);