nl_tokens: Internal : Used by detectRecursion to check to see if the given pair of objects has been encountered yet on a previous recursive call . o1 - The first object to check for recursion . o2 - The paired object to check for recursion . Returns true if the pair has been seen previously and false otherwise .
pl_tokens: function seen ( o1 , o2 ) { var i , len ; for ( i = 0 , len = seenObjects . length ; i < len ; i ++ ) { if ( seenObjects [ i ] [ 0 ] === o1 && seenObjects [ i ] [ 1 ] === o2 ) { return true ; } } return <mask> ; }