#testmode:repl
Word _
Word __

'x' _ Int ',' _ Int
'x' _ Int ',' _ Int (1=>$3 2=>$4 3=>$5 4=>$6)

'y' _ Int ',' _ Int
'y' _ Int ',' _ Int (1=>$3 2=>$4 3=>$5 4=>$6)

'x' _ Int ',' _ Int ast("x")
'y' _ Int ',' _ Int ast("y")
#---
#abc    def  abcabc= ghi     abcdef
#x           23,5
#y    13, 37
#---
#("abc", "def", "abcabc", "ghi", "abcdef", "x", "y")
#("abc", "def", "ghi", "abcdef", "x", "y")
#(23, 5)
#(1 => 23 2 => "," 3 => null 4 => 5)
#(13, 37)
#(1 => 13 2 => "," 3 => " " 4 => 37)
#(emit => "x" children => (23, 5) offset => 35 row => 2 col => 1 stop_offset => 51 stop_row => 2 stop_col => 17)
#(emit => "y" children => (13, 37) offset => 52 row => 3 col => 1 stop_offset => 63 stop_row => 3 stop_col => 12)