Function parse_specs

include/fmt/compile.h:298–307

template <typename T, typename Char>
constexpr auto parse_specs(basic_string_view<Char> str, size_t pos,
                           int next_arg_id) -> parse_specs_result<T, Char> {
  str.remove_prefix(pos);
  auto ctx =
      compile_parse_context<Char>(str, max_value<int>(), nullptr, next_arg_id);
  auto f = formatter<T, Char>();
  auto end = f.parse(ctx);
  return {f, pos + fmt::detail::to_unsigned(end - str.data()),
          next_arg_id == 0 ? manual_indexing_id : ctx.next_arg_id()};
}

template <typename Char> struct arg_id_handler {
  arg_id_kind kind;