gistfile1.txt

I struggle with the following

    =table
        Superhero     | Secret          |
                      | Identity        | Superpower
        ==============|=================|================================
        The Shoveller | Eddie Stevens   | King Arthur's singing shovel
        Blue Raja     | Geoffrey Smith  | Master of cutlery
        Mr Furious    | Roy Orson       | Ticking time bomb of fury
        The Bowler    | Carol Pinnsler  | Haunted bowling ball

I'm matching a single row with:
     token table_row:sym<content> {
         \h* <table_cell> ** [ \h+'|'\h+ || \h+'+'\h+ || \h\h+ ] \n
     }

Where table_cell is:
     token table_cell {
         <!before '=' \w> # no pod directives
         [
             <!before \h\h+ || \h'|'\h || \h'+'\h> \N
         ]+
     }

Now in the example above, the headers get parsed as:
(("Superhero", "Secret", "| "), ("| Identity", "Superpower"))

Can you think of any sensemaking way to allow an empty cell so this example will work?