nl_tokens: Read keyword entries inside a keyword block and fill KEY_TABLE .
pl_tokens: <mask> read_key_block ( scanner , kdx ) { var scanner = scanner . readBlock ( kdx . comp_size , kdx . decomp_size ) ; for ( var i = 0 ; i < kdx . num_entries ; i ++ ) { //        scanner.readNum(); scanner.readText(); var kk = [ scanner . readNum ( ) , scanner . readText ( ) ] ; } }