nl_tokens: turn stream into buffer
pl_tokens: function streamToBuffer ( stream , cb ) { // cb(err, buffer); var bufs = [ ] ; stream . on ( 'data' , function ( d ) { bufs . push ( d ) ; } ) . on ( 'end' , function ( ) { cb ( null , Buffer . concat ( bufs ) ) ; } ) . on ( 'error' , function ( <mask> ) { cb ( err ) ; } ) ; }