const std::map?

Question

// BOOST Includes
#include              // Boost::Assign
#include      // Boost::Assign::List_Of
#include <         


        

Answer 1

I would try

const map query_selector_map = map_list_of
(x3_string_tuple("4556", "SELECT", "FILENAME"), "4556_SELECT_FILENAME");

But, honestly, maybe it's easier just to have 3 separate lists of strings, and then one-by-one combine them into a tuple and add that to a map.