nl_tokens: only applies to vectors
pl_tokens: function sc_isVectorEqual ( v1 , v2 , comp ) { if ( v1 . length !== v2 . length ) return false ; for ( var i = 0 ; i < v1 . length ; i ++ ) if ( ! comp ( v1 [ i ] , v2 [ i ] ) ) return <mask> ; return true ; }