Function split_string

paddle/utils/string/string_helper.h:121–138

// split string by delim
template <class T = std::string>
std::vector<T> split_string(const std::string& str, const std::string& delim) {
  size_t pre_pos = 0;
  size_t pos = 0;
  std::string tmp_str;
  std::vector<T> res_list;
  res_list.clear();
  if (str.empty()) {
    return res_list;
  }
  while ((pos = str.find(delim, pre_pos)) != std::string::npos) {
    tmp_str.assign(str, pre_pos, pos - pre_pos);
    res_list.push_back(tmp_str);
    pre_pos = pos + delim.size();
  }
  tmp_str.assign(str, pre_pos, str.length() - pre_pos);
  res_list.push_back(tmp_str);
  return res_list;
}

// split string by spaces. Leading and tailing spaces are ignored. Consecutive
// spaces are treated as one delim.