nl_tokens: A secret little gem you can use to print out the subtree : )
pl_tokens: function attrStringify ( attr ) { var names = Object . keys ( attr ) ; var str = '' ; for ( var i = 0 , l = <mask> . length ; i < l ; i ++ ) { str += names [ i ] + '="' + attr [ names [ i ] ] . slice ( 0 , 20 ) + ( attr [ names [ i ] ] . length > 20 ? '...' : '' ) + '" ' ; } return str ; }