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/*
* libpinyin
* Library to deal with pinyin.
*
* Copyright (C) 2010 Peng Wu
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PHRASE_LARGE_TABLE_H
#define PHRASE_LARGE_TABLE_H
#include <stdio.h>
#include "novel_types.h"
#include "memory_chunk.h"
namespace novel{
const size_t PHRASE_Number_Of_Bitmap_Index = 1<<16;
class PhraseLengthIndexLevel;
class PhraseBitmapIndexLevel{
protected:
PhraseLengthIndexLevel * m_phrase_length_indexes[PHRASE_Number_Of_Bitmap_Index];
//shift one utf16_t for class PhraseLengthIndexLevel, just like PinyinLengthIndexLevel.
public:
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/add_index/remove_index method */
int search( int phrase_length, /* in */ utf16_t phrase[],
/* out */ phrase_token_t & token);
int add_index( int phrase_length, /* in */ utf16_t phrase[], /* in */ phrase_token_t token);
int remove_index( int phrase_length, /* in */ utf16_t phrase[], /* out */ phrase_token_t & token);
};
class PhraseLengthIndexLevel{
protected:
GArray* m_phrase_array_indexes;
public:
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/add_index/remove_index method */
int search( int phrase_length, /* in */ utf16_t phrase[],
/* out */ phrase_token_t & token);
int add_index( int phrase_length, /* in */ utf16_t phrase[], /* in */ phrase_token_t token);
int remove_index( int phrase_length, /* in */ utf16_t phrase[], /* out */ phrase_token_t & token);
};
template<size_t phrase_length>
class PhraseArrayIndexLevel{
protected:
MemoryChunk m_chunk;
public:
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/add_index/remove_index method */
int search( /* in */ utf16_t phrase[],
/* out */ phrase_token_t & token);
int add_index(/* in */ utf16_t phrase[], /* in */ phrase_token_t token);
int remove_index(/* in */ utf16_t phrase[], /* out */ phrase_token_t & token);
};
class PhraseLargeTable{
protected:
PhraseBitmapIndexLevel m_bitmap_table;
MemoryChunk * m_chunk;
void reset(){
if ( m_chunk ){
delete m_chunk;
m_chunk = NULL;
}
}
public:
PhraseLargeTable(){
m_chunk = NULL;
}
~PhraseLargeTable(){
reset();
}
/* 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/add_index/remove_index method */
int search( int phrase_length, /* in */ utf16_t phrase[],
/* out */ phrase_token_t & token){
return m_bitmap_table.search(phrase_length, phrase, token);
}
int add_index( int phrase_length, /* in */ utf16_t phrase[], /* in */ phrase_token_t token){
return m_bitmap_table.add_index(phrase_length, phrase, token);
}
int remove_index( int phrase_length, /* in */ utf16_t phrase[], /* out */ phrase_token_t & token){
return m_bitmap_table.remove_index(phrase_length, phrase, token);
}
};
};
using namespace novel;
#endif
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