nl_tokens: Filter the keys of an object with the given glob pattern and options
pl_tokens: function matchKeys ( obj , glob , options ) { if ( utils . typeOf ( obj ) !== 'object' ) { throw new TypeError ( msg ( 'matchKeys' , 'first argument' , 'an object' ) ) ; } var fn = matcher ( glob , options ) ; var res = { } ; for ( var key in obj ) { if ( obj . hasOwnProperty ( key ) && fn ( key ) ) { <mask> [ key ] = obj [ key ] ; } } return res ; }