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/*
* libpinyin
* Library to deal with pinyin.
*
* Copyright (C) 2006-2007 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <locale.h>
#include "pinyin_internal.h"
#include "utils_helper.h"
static const gchar * table_dir = ".";
static GOptionEntry entries[] =
{
{"table-dir", 0, 0, G_OPTION_ARG_FILENAME, &table_dir, "table directory", NULL},
{NULL}
};
/* increase all unigram frequency by a constant. */
bool generate_unigram(const pinyin_table_info_t * phrase_files) {
FacadePhraseIndex phrase_index;
/* Note: please increase the value when corpus size becomes larger.
* To avoid zero value when computing unigram frequency in float format.
*/
for (size_t i = 0; i < PHRASE_INDEX_LIBRARY_COUNT; ++i) {
const pinyin_table_info_t * table_info = phrase_files + i;
assert(table_info->m_dict_index == i);
if (SYSTEM_FILE != table_info->m_file_type &&
DICTIONARY != table_info->m_file_type)
continue;
guint32 freq = 1;
const char * binfile = table_info->m_system_filename;
MemoryChunk * chunk = new MemoryChunk;
bool retval = chunk->load(binfile);
if (!retval) {
fprintf(stderr, "load %s failed!\n", binfile);
exit(ENOENT);
}
phrase_index.load(i, chunk);
PhraseIndexRange range;
int result = phrase_index.get_range(i, range);
if ( result == ERROR_OK ) {
for (size_t token = range.m_range_begin;
token < range.m_range_end; ++token) {
phrase_index.add_unigram_frequency(token, freq);
}
}
}
if (!save_phrase_index(phrase_files, &phrase_index))
exit(ENOENT);
if (!save_dictionary(phrase_files, &phrase_index))
exit(ENOENT);
return true;
}
int main(int argc, char * argv[]){
setlocale(LC_ALL, "");
GError * error = NULL;
GOptionContext * context;
context = g_option_context_new("- increase uni-gram");
g_option_context_add_main_entries(context, entries, NULL);
if (!g_option_context_parse(context, &argc, &argv, &error)) {
g_print("option parsing failed:%s\n", error->message);
exit(EINVAL);
}
SystemTableInfo2 system_table_info;
gchar * filename = g_build_filename(table_dir, SYSTEM_TABLE_INFO, NULL);
bool retval = system_table_info.load(filename);
if (!retval) {
fprintf(stderr, "load table.conf failed.\n");
exit(ENOENT);
}
g_free(filename);
const pinyin_table_info_t * phrase_files =
system_table_info.get_default_tables();
generate_unigram(phrase_files);
phrase_files = system_table_info.get_addon_tables();
generate_unigram(phrase_files);
return 0;
}
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