Function compile_format_string

extlibs/fmt/include/fmt/compile.h:156–161

// Compiles a format string and invokes handler(part) for each parsed part.
template <bool IS_CONSTEXPR, typename Char, typename PartHandler>
FMT_CONSTEXPR void compile_format_string(basic_string_view<Char> format_str,
                                         PartHandler handler) {
  parse_format_string<IS_CONSTEXPR>(
      format_str,
      format_string_compiler<Char, PartHandler>(format_str, handler));
}

template <typename Range, typename Context, typename Id>
void format_arg(