Function trim

src/common/string_utils.h:147–153

} // namespace detail

template <typename CharType> std::basic_string_view<CharType> trim(std::basic_string_view<CharType> sv) {
  while (detail::is_space_helper(sv.front()))
    sv.remove_prefix(1);
  while (detail::is_space_helper(sv.back()))
    sv.remove_suffix(1);
  return sv;
}

// trim from start (in place)
void ltrim_inplace(std::wstring &s);