void PhraseItem::remove_nth_pronunciation(size_t index){
guint8 phrase_length = get_phrase_length();
set_n_pronunciation(get_n_pronunciation() - 1);
- size_t offset = phrase_item_header + phrase_length * sizeof ( ucs4_t ) +
- index * (phrase_length * sizeof (ChewingKey) + sizeof(guint32));
+ size_t offset = phrase_item_header + phrase_length * sizeof(ucs4_t) +
+ index * (phrase_length * sizeof(ChewingKey) + sizeof(guint32));
m_chunk.remove_content(offset, phrase_length * sizeof(ChewingKey) + sizeof(guint32));
}
}
void PhraseItem::increase_pronunciation_possibility(pinyin_option_t options,
- ChewingKey * keys,
- gint32 delta){
+ ChewingKey * keys,
+ gint32 delta){
guint8 phrase_length = get_phrase_length();
guint8 npron = get_n_pronunciation();
size_t offset = phrase_item_header + phrase_length * sizeof ( ucs4_t );
return ERROR_OUT_OF_RANGE;
if ( 0 == offset )
- return ERROR_NO_ITEM;
+ return ERROR_NO_ITEM;
result = m_phrase_content.get_content
(offset + sizeof(guint8) + sizeof(guint8), &freq, sizeof(guint32));
if ( !result )
- return ERROR_FILE_CORRUPTION;
+ return ERROR_FILE_CORRUPTION;
//protect total_freq overflow
if ( delta > 0 && m_total_freq > m_total_freq + delta )
return ERROR_OUT_OF_RANGE;
if ( 0 == offset )
- return ERROR_NO_ITEM;
+ return ERROR_NO_ITEM;
result = m_phrase_content.get_content(offset, &phrase_length, sizeof(guint8));
if ( !result )
- return ERROR_FILE_CORRUPTION;
+ return ERROR_FILE_CORRUPTION;
result = m_phrase_content.get_content(offset+sizeof(guint8), &n_prons, sizeof(guint8));
if ( !result )
int result = get_phrase_item(token, old_item);
if (result != ERROR_OK)
- return result;
+ return result;
item = new PhraseItem;
//implictly copy data from m_chunk_content.
return retval;
}
+bool FacadePhraseIndex::merge_with_mask(guint8 phrase_index,
+ MemoryChunk * log,
+ phrase_token_t mask,
+ phrase_token_t value){
+ SubPhraseIndex * & sub_phrases = m_sub_phrase_indices[phrase_index];
+ if ( !sub_phrases )
+ return false;
+
+ /* check mask and value. */
+ phrase_token_t index_mask = PHRASE_INDEX_LIBRARY_INDEX(mask);
+ phrase_token_t index_value = PHRASE_INDEX_LIBRARY_INDEX(value);
+ if ((phrase_index & index_mask) != index_value)
+ return false;
+
+ /* unload old sub phrase index */
+ m_total_freq -= sub_phrases->get_phrase_index_total_freq();
+
+ /* calculate the sub phrase index mask and value. */
+ mask &= PHRASE_MASK; value &= PHRASE_MASK;
+
+ /* prepare the new logger. */
+ PhraseIndexLogger oldlogger;
+ oldlogger.load(log);
+ PhraseIndexLogger * newlogger = mask_out_phrase_index_logger
+ (&oldlogger, mask, value);
+
+ bool retval = sub_phrases->merge(newlogger);
+ m_total_freq += sub_phrases->get_phrase_index_total_freq();
+ delete newlogger;
+
+ return retval;
+}
+
+
bool SubPhraseIndex::load(MemoryChunk * chunk,
table_offset_t offset, table_offset_t end){
//save the memory chunk
m_phrase_index.set_chunk(buf_begin + index_one,
index_two - 1 - index_one, NULL);
m_phrase_content.set_chunk(buf_begin + index_two,
- index_three - 1 - index_two, NULL);
+ index_three - 1 - index_two, NULL);
g_return_val_if_fail( index_three <= end, FALSE);
return true;
}
range.m_range_begin = std_lite::min(oldrange.m_range_begin,
currange.m_range_begin);
range.m_range_end = std_lite::max(oldrange.m_range_end,
- currange.m_range_end);
+ currange.m_range_end);
PhraseItem olditem, newitem;
for (phrase_token_t token = range.m_range_begin;
logger->append_record(LOG_ADD_RECORD, token,
NULL, &(newitem.m_chunk));
} else { /* both empty. */
- /* do nothing. */
+ /* do nothing. */
}
}
}
PhraseItem olditem, newitem, item, * tmpitem;
while(logger->has_next_record()){
- logger->next_record(log_type, token, &oldchunk, &newchunk);
+ bool retval = logger->next_record
+ (log_type, token, &oldchunk, &newchunk);
+
+ if (!retval)
+ break;
switch(log_type){
case LOG_ADD_RECORD:{
remove_phrase_item(token, tmpitem);
olditem.m_chunk.set_chunk(oldchunk.begin(), oldchunk.size(),
- NULL);
+ NULL);
if (olditem != *tmpitem)
return false;
delete tmpitem;
add_phrase_item( cur_token, item_ptr);
delete item_ptr;
+#if 0
m_total_freq += m_sub_phrase_indices[phrase_index]->get_phrase_index_total_freq();
+#endif
return true;
}
const table_offset_t * begin = (const table_offset_t *)m_phrase_index.begin();
const table_offset_t * end = (const table_offset_t *)m_phrase_index.end();
+ if (begin == end) {
+ /* skip empty sub phrase index. */
+ range.m_range_begin = 1;
+ range.m_range_end = 1;
+ return ERROR_OK;
+ }
+
+ /* remove trailing zeros. */
+ const table_offset_t * poffset = 0;
+ for (poffset = end - 1; poffset >= begin + 1; --poffset) {
+ if (0 != *poffset)
+ break;
+ }
+
range.m_range_begin = 1; /* token starts with 1 in gen_pinyin_table. */
- range.m_range_end = end - begin;
+ range.m_range_end = poffset + 1 - begin; /* removed zeros. */
return ERROR_OK;
}
-bool FacadePhraseIndex::compat(){
+bool FacadePhraseIndex::compact(){
for ( size_t index = 0; index < PHRASE_INDEX_LIBRARY_COUNT; ++index) {
SubPhraseIndex * sub_phrase = m_sub_phrase_indices[index];
if ( !sub_phrase )
continue;
- SubPhraseIndex * new_sub_phrase = new SubPhraseIndex;
PhraseIndexRange range;
int result = sub_phrase->get_range(range);
- if ( result != ERROR_OK ) {
- delete new_sub_phrase;
+ if ( result != ERROR_OK )
continue;
- }
+
+ SubPhraseIndex * new_sub_phrase = new SubPhraseIndex;
PhraseItem item;
for ( phrase_token_t token = range.m_range_begin;
return true;
}
+bool SubPhraseIndex::mask_out(phrase_token_t mask, phrase_token_t value){
+ PhraseIndexRange range;
+ if (ERROR_OK != get_range(range))
+ return false;
+
+ /* calculate mask and value for sub phrase index. */
+ mask &= PHRASE_MASK; value &= PHRASE_MASK;
+
+ for (phrase_token_t token = range.m_range_begin;
+ token < range.m_range_end; ++token) {
+ if ((token & mask) != value)
+ continue;
+
+ PhraseItem * item = NULL;
+ remove_phrase_item(token, item);
+ if (item)
+ delete item;
+ }
-const char * pinyin_phrase_files[PHRASE_INDEX_LIBRARY_COUNT] =
+ return true;
+}
+
+bool FacadePhraseIndex::mask_out(guint8 phrase_index,
+ phrase_token_t mask,
+ phrase_token_t value){
+ SubPhraseIndex * & sub_phrases = m_sub_phrase_indices[phrase_index];
+ if (!sub_phrases)
+ return false;
+
+ /* check mask and value. */
+ phrase_token_t index_mask = PHRASE_INDEX_LIBRARY_INDEX(mask);
+ phrase_token_t index_value = PHRASE_INDEX_LIBRARY_INDEX(value);
+
+ if ((phrase_index & index_mask ) != index_value)
+ return false;
+
+ m_total_freq -= sub_phrases->get_phrase_index_total_freq();
+ bool retval = sub_phrases->mask_out(mask, value);
+ m_total_freq += sub_phrases->get_phrase_index_total_freq();
+
+ return retval;
+}
+
+namespace pinyin{
+const pinyin_table_info_t pinyin_phrase_files[PHRASE_INDEX_LIBRARY_COUNT] =
{
- NULL,
- "gb_char.bin",
- "gbk_char.bin"
+ {RESERVED, NULL, NULL, NULL, NOT_USED},
+ {GB_DICTIONARY, "gb_char.table", "gb_char.bin", "gb_char.dbin", SYSTEM_FILE},
+ {GBK_DICTIONARY, "gbk_char.table", "gbk_char.bin", "gbk_char.dbin", SYSTEM_FILE},
+
+ {MERGED_DICTIONARY, "merged.table", "merged.bin", "merged.dbin", SYSTEM_FILE},
+
+ {ART_DICTIONARY, "art.table", "art.bin", "art.dbin", DICTIONARY},
+ {CULTURE_DICTIONARY, "culture.table", "culture.bin", "culture.dbin", DICTIONARY},
+ {ECONOMY_DICTIONARY, "economy.table", "economy.bin", "economy.dbin", DICTIONARY},
+ {GEOLOGY_DICTIONARY, "geology.table", "geology.bin", "geology.dbin", DICTIONARY},
+ {HISTORY_DICTIONARY, "history.table", "history.bin", "history.dbin", DICTIONARY},
+
+ {LIFE_DICTIONARY, "life.table", "life.bin", "life.dbin", DICTIONARY},
+ {NATURE_DICTIONARY, "nature.table", "nature.bin", "nature.dbin", DICTIONARY},
+ {SCITECH_DICTIONARY, "scitech.table", "scitech.bin", "scitech.dbin", DICTIONARY},
+ {SOCIETY_DICTIONARY, "society.table", "society.bin", "society.dbin", DICTIONARY},
+ {SPORT_DICTIONARY, "sport.table", "sport.bin", "sport.dbin", DICTIONARY},
+
+ {RESERVED1, NULL, NULL, NULL, NOT_USED},
+
+ {USER_DICTIONARY, NULL, NULL, "user.bin", USER_FILE}
};
+
+
+static bool _peek_header(PhraseIndexLogger * logger,
+ guint32 & old_total_freq){
+ old_total_freq = 0;
+
+ size_t header_count = 0;
+ LOG_TYPE log_type; phrase_token_t token;
+ MemoryChunk oldchunk, newchunk;
+
+ while (logger->has_next_record()) {
+ bool retval = logger->next_record
+ (log_type, token, &oldchunk, &newchunk);
+
+ if (!retval)
+ break;
+
+ if (LOG_MODIFY_HEADER != log_type)
+ continue;
+
+ ++header_count;
+
+ oldchunk.get_content(0, &old_total_freq, sizeof(guint32));
+ }
+
+ /* 1 for normal case, 0 for corrupted file. */
+ assert(1 >= header_count);
+
+ return 1 == header_count? true : false;
+}
+
+bool _compute_new_header(PhraseIndexLogger * logger,
+ phrase_token_t mask,
+ phrase_token_t value,
+ guint32 & new_total_freq) {
+
+ LOG_TYPE log_type; phrase_token_t token;
+ MemoryChunk oldchunk, newchunk;
+ PhraseItem olditem, newitem;
+
+ while(logger->has_next_record()) {
+ bool retval = logger->next_record
+ (log_type, token, &oldchunk, &newchunk);
+
+ if (!retval)
+ break;
+
+ if (LOG_MODIFY_HEADER == log_type)
+ continue;
+
+ if ((token & mask) == value)
+ continue;
+
+ switch(log_type) {
+ case LOG_ADD_RECORD:{
+ assert( 0 == oldchunk.size() );
+ newitem.m_chunk.set_chunk(newchunk.begin(), newchunk.size(),
+ NULL);
+ new_total_freq += newitem.get_unigram_frequency();
+ break;
+ }
+ case LOG_REMOVE_RECORD:{
+ assert( 0 == newchunk.size() );
+ olditem.m_chunk.set_chunk(oldchunk.begin(), oldchunk.size(),
+ NULL);
+ new_total_freq -= olditem.get_unigram_frequency();
+ break;
+ }
+ case LOG_MODIFY_RECORD:{
+ olditem.m_chunk.set_chunk(oldchunk.begin(), oldchunk.size(),
+ NULL);
+ new_total_freq -= olditem.get_unigram_frequency();
+
+ newitem.m_chunk.set_chunk(newchunk.begin(), newchunk.size(),
+ NULL);
+ new_total_freq += newitem.get_unigram_frequency();
+ break;
+ }
+ default:
+ assert(false);
+ }
+ }
+
+ return true;
+}
+
+static bool _write_header(PhraseIndexLogger * logger,
+ guint32 & old_total_freq,
+ guint32 & new_total_freq) {
+ MemoryChunk oldheader, newheader;
+ oldheader.set_content(0, &old_total_freq, sizeof(guint32));
+ newheader.set_content(0, &new_total_freq, sizeof(guint32));
+ logger->append_record(LOG_MODIFY_HEADER, null_token,
+ &oldheader, &newheader);
+ return true;
+}
+
+static bool _mask_out_records(PhraseIndexLogger * oldlogger,
+ phrase_token_t mask,
+ phrase_token_t value,
+ PhraseIndexLogger * newlogger) {
+ LOG_TYPE log_type; phrase_token_t token;
+ MemoryChunk oldchunk, newchunk;
+
+ while(oldlogger->has_next_record()) {
+ bool retval = oldlogger->next_record
+ (log_type, token, &oldchunk, &newchunk);
+
+ if (!retval)
+ break;
+
+ if (LOG_MODIFY_HEADER == log_type)
+ continue;
+
+ if ((token & mask) == value)
+ continue;
+
+ newlogger->append_record(log_type, token, &oldchunk, &newchunk);
+ }
+
+ return true;
+}
+
+PhraseIndexLogger * mask_out_phrase_index_logger
+(PhraseIndexLogger * oldlogger, phrase_token_t mask,
+ phrase_token_t value) {
+ PhraseIndexLogger * newlogger = new PhraseIndexLogger;
+ guint32 old_total_freq = 0, new_total_freq = 0;
+
+ /* peek the header value. */
+ if (!_peek_header(oldlogger, old_total_freq))
+ return newlogger;
+
+ new_total_freq = old_total_freq;
+
+ /* compute the new header based on add/modify/remove records. */
+ oldlogger->rewind();
+ if (!_compute_new_header(oldlogger, mask, value, new_total_freq))
+ return newlogger;
+
+ /* write out the modify header record. */
+ _write_header(newlogger, old_total_freq, new_total_freq);
+
+ /* mask out the matched records. */
+ oldlogger->rewind();
+ _mask_out_records(oldlogger, mask, value, newlogger);
+
+ return newlogger;
+}
+
+};
projects / platform / upstream / libpinyin.git / blobdiff