nl_tokens: _setObject ( obj k1 k2 ... value ) : Set object deeply key by key ensure each part is an object
pl_tokens: function _setObject ( obj ) { var args = arguments , o = obj , len = args . length , // keys are args ix: 1 to n-2 keys = 3 <= len ? slice . <mask> ( args , 1 , len = len - 1 ) : ( len = 1 , [ ] ) , // value is last arg value = args [ len ++ ] , ix , k for ( ix = 0 ; ix < keys . length ; ix ++ ) { k = keys [ ix ] // Initialize key to empty object if necessary if ( typeof o [ k ] !== 'object' ) o [ k ] = { } // Set final value if this is the last key if ( ix === keys . length - 1 ) o [ k ] = value else // Continue deeper o = o [ k ] } return obj }