/**
|
* Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights Reserved.
|
* MIT License (https://opensource.org/licenses/MIT)
|
*/
|
|
#include "precomp.h"
|
|
namespace funasr {
|
CTokenizer::CTokenizer(const char* sz_yamlfile):m_ready(false)
|
{
|
OpenYaml(sz_yamlfile);
|
}
|
|
CTokenizer::CTokenizer():m_ready(false)
|
{
|
}
|
|
CTokenizer::~CTokenizer()
|
{
|
if (jieba_dict_trie_){
|
delete jieba_dict_trie_;
|
}
|
if (jieba_model_){
|
delete jieba_model_;
|
}
|
}
|
|
void CTokenizer::SetJiebaRes(cppjieba::DictTrie *dict, cppjieba::HMMModel *hmm) {
|
jieba_processor_.SetJiebaRes(dict, hmm);
|
}
|
|
void CTokenizer::JiebaInit(std::string punc_config){
|
if (seg_jieba){
|
std::string model_path = punc_config.substr(0, punc_config.length() - (sizeof(PUNC_CONFIG_NAME)-1));
|
std::string jieba_dict_file = PathAppend(model_path, JIEBA_DICT);
|
std::string jieba_hmm_file = PathAppend(model_path, JIEBA_HMM_MODEL);
|
std::string jieba_userdict_file = PathAppend(model_path, JIEBA_USERDICT);
|
try{
|
jieba_dict_trie_ = new cppjieba::DictTrie(jieba_dict_file, jieba_userdict_file);
|
LOG(INFO) << "Successfully load file from " << jieba_dict_file << ", " << jieba_userdict_file;
|
}catch(exception const &e){
|
LOG(ERROR) << "Error loading file, Jieba dict file error or not exist.";
|
exit(-1);
|
}
|
|
try{
|
jieba_model_ = new cppjieba::HMMModel(jieba_hmm_file);
|
LOG(INFO) << "Successfully load model from " << jieba_hmm_file;
|
}catch(exception const &e){
|
LOG(ERROR) << "Error loading file, Jieba hmm file error or not exist.";
|
exit(-1);
|
}
|
|
SetJiebaRes(jieba_dict_trie_, jieba_model_);
|
}else {
|
jieba_dict_trie_ = nullptr;
|
jieba_model_ = nullptr;
|
}
|
}
|
|
void CTokenizer::ReadYaml(const YAML::Node& node)
|
{
|
if (node.IsMap())
|
{//��map��
|
for (auto it = node.begin(); it != node.end(); ++it)
|
{
|
ReadYaml(it->second);
|
}
|
}
|
if (node.IsSequence()) {//��������
|
for (size_t i = 0; i < node.size(); ++i) {
|
ReadYaml(node[i]);
|
}
|
}
|
if (node.IsScalar()) {//�DZ�����
|
LOG(INFO) << node.as<string>();
|
}
|
}
|
|
bool CTokenizer::OpenYaml(const char* sz_yamlfile)
|
{
|
YAML::Node m_Config;
|
try{
|
m_Config = YAML::LoadFile(sz_yamlfile);
|
}catch(exception const &e){
|
LOG(INFO) << "Error loading file, yaml file error or not exist.";
|
exit(-1);
|
}
|
|
try
|
{
|
YAML::Node conf_seg_jieba = m_Config["seg_jieba"];
|
if (conf_seg_jieba.IsDefined()){
|
seg_jieba = conf_seg_jieba.as<bool>();
|
}
|
|
auto Tokens = m_Config["token_list"];
|
if (Tokens.IsSequence())
|
{
|
for (size_t i = 0; i < Tokens.size(); ++i)
|
{
|
if (Tokens[i].IsScalar())
|
{
|
m_id2token.push_back(Tokens[i].as<string>());
|
m_token2id.insert(make_pair<string, int>(Tokens[i].as<string>(), i));
|
}
|
}
|
}
|
auto Puncs = m_Config["punc_list"];
|
if (Puncs.IsSequence())
|
{
|
for (size_t i = 0; i < Puncs.size(); ++i)
|
{
|
if (Puncs[i].IsScalar())
|
{
|
m_id2punc.push_back(Puncs[i].as<string>());
|
m_punc2id.insert(make_pair<string, int>(Puncs[i].as<string>(), i));
|
}
|
}
|
}
|
}
|
catch (YAML::BadFile& e) {
|
LOG(ERROR) << "Read error!";
|
return false;
|
}
|
m_ready = true;
|
return m_ready;
|
}
|
|
bool CTokenizer::OpenYaml(const char* sz_yamlfile, const char* token_file)
|
{
|
YAML::Node m_Config;
|
try{
|
m_Config = YAML::LoadFile(sz_yamlfile);
|
}catch(exception const &e){
|
LOG(INFO) << "Error loading file, yaml file error or not exist.";
|
exit(-1);
|
}
|
|
try
|
{
|
YAML::Node conf_seg_jieba = m_Config["seg_jieba"];
|
if (conf_seg_jieba.IsDefined()){
|
seg_jieba = conf_seg_jieba.as<bool>();
|
}
|
|
auto Puncs = m_Config["model_conf"]["punc_list"];
|
if (Puncs.IsSequence())
|
{
|
for (size_t i = 0; i < Puncs.size(); ++i)
|
{
|
if (Puncs[i].IsScalar())
|
{
|
m_id2punc.push_back(Puncs[i].as<string>());
|
m_punc2id.insert(make_pair<string, int>(Puncs[i].as<string>(), i));
|
}
|
}
|
}
|
|
nlohmann::json json_array;
|
std::ifstream file(token_file);
|
if (file.is_open()) {
|
file >> json_array;
|
file.close();
|
} else {
|
LOG(INFO) << "Error loading token file, token file error or not exist.";
|
return false;
|
}
|
|
int i = 0;
|
for (const auto& element : json_array) {
|
m_id2token.push_back(element);
|
m_token2id[element] = i;
|
i++;
|
}
|
}
|
catch (YAML::BadFile& e) {
|
LOG(ERROR) << "Read error!";
|
return false;
|
}
|
m_ready = true;
|
return m_ready;
|
}
|
|
vector<string> CTokenizer::Id2String(vector<int> input)
|
{
|
vector<string> result;
|
for (auto& item : input)
|
{
|
result.push_back(m_id2token[item]);
|
}
|
return result;
|
}
|
|
int CTokenizer::String2Id(string input)
|
{
|
int nID = 0; // <blank>
|
if (m_token2id.find(input) != m_token2id.end())
|
nID=(m_token2id[input]);
|
else
|
nID=(m_token2id[UNK_CHAR]);
|
return nID;
|
}
|
|
vector<int> CTokenizer::String2Ids(vector<string> input)
|
{
|
vector<int> result;
|
for (auto& item : input)
|
{
|
transform(item.begin(), item.end(), item.begin(), ::tolower);
|
if (m_token2id.find(item) != m_token2id.end())
|
result.push_back(m_token2id[item]);
|
else
|
result.push_back(m_token2id[UNK_CHAR]);
|
}
|
return result;
|
}
|
|
vector<string> CTokenizer::Id2Punc(vector<int> input)
|
{
|
vector<string> result;
|
for (auto& item : input)
|
{
|
result.push_back(m_id2punc[item]);
|
}
|
return result;
|
}
|
|
string CTokenizer::Id2Punc(int n_punc_id)
|
{
|
return m_id2punc[n_punc_id];
|
}
|
|
vector<int> CTokenizer::Punc2Ids(vector<string> input)
|
{
|
vector<int> result;
|
for (auto& item : input)
|
{
|
result.push_back(m_punc2id[item]);
|
}
|
return result;
|
}
|
|
bool CTokenizer::IsPunc(string& Punc)
|
{
|
if (m_punc2id.find(Punc) != m_punc2id.end())
|
return true;
|
else
|
return false;
|
}
|
|
vector<string> CTokenizer::SplitChineseString(const string & str_info)
|
{
|
vector<string> list;
|
int strSize = str_info.size();
|
int i = 0;
|
|
while (i < strSize) {
|
int len = 1;
|
for (int j = 0; j < 6 && (str_info[i] & (0x80 >> j)); j++) {
|
len = j + 1;
|
}
|
list.push_back(str_info.substr(i, len));
|
i += len;
|
}
|
return list;
|
}
|
|
vector<string> CTokenizer::SplitChineseJieba(const string & str_info)
|
{
|
vector<string> list;
|
jieba_processor_.Cut(str_info, list, false);
|
|
return list;
|
}
|
|
void CTokenizer::StrSplit(const string& str, const char split, vector<string>& res)
|
{
|
if (str == "")
|
{
|
return;
|
}
|
string&& strs = str + split;
|
size_t pos = strs.find(split);
|
|
while (pos != string::npos)
|
{
|
res.emplace_back(strs.substr(0, pos));
|
strs = move(strs.substr(pos + 1, strs.size()));
|
pos = strs.find(split);
|
}
|
}
|
|
void CTokenizer::Tokenize(const char* str_info, vector<string> & str_out, vector<int> & id_out)
|
{
|
vector<string> strList;
|
StrSplit(str_info,' ', strList);
|
string current_eng,current_chinese;
|
for (auto& item : strList)
|
{
|
current_eng = "";
|
current_chinese = "";
|
for (auto& ch : item)
|
{
|
if (!(ch& 0x80))
|
{ // Ӣ��
|
if (current_chinese.size() > 0)
|
{
|
// for utf-8 chinese
|
vector<string> chineseList;
|
if(seg_jieba){
|
chineseList = SplitChineseJieba(current_chinese);
|
}else{
|
chineseList = SplitChineseString(current_chinese);
|
}
|
str_out.insert(str_out.end(), chineseList.begin(),chineseList.end());
|
current_chinese = "";
|
}
|
current_eng += ch;
|
}
|
else
|
{
|
if (current_eng.size() > 0)
|
{
|
str_out.push_back(current_eng);
|
current_eng = "";
|
}
|
current_chinese += ch;
|
}
|
}
|
if (current_chinese.size() > 0)
|
{
|
// for utf-8 chinese
|
vector<string> chineseList;
|
if(seg_jieba){
|
chineseList = SplitChineseJieba(current_chinese);
|
}else{
|
chineseList = SplitChineseString(current_chinese);
|
}
|
str_out.insert(str_out.end(), chineseList.begin(), chineseList.end());
|
current_chinese = "";
|
}
|
if (current_eng.size() > 0)
|
{
|
str_out.push_back(current_eng);
|
}
|
}
|
id_out= String2Ids(str_out);
|
}
|
|
} // namespace funasr
|
