nodes - Reading Multiple Variables from a flat file -

i trying read variables flat file. implementing ros node. so, reading variable lob flat file , made node it. question if want read gps variable data flat file can code in same ros node made lob variable or have make node ?

$90lob238   0   0   6 10  & $90lob280   0   0   6 10  & $90lob261   0   0   6 10  & $90lob219   0   0   6 10  & $90lob204   0   0   6 10  & $90lob270   0   0   6 10  & $90lob244   0   0   6 10  & $90lob236   0   0   6 10  & $90tm020516 18552200& $90lob246   0   0   6 10  & $90lob259   0   0   6 10  & $90lob192   0   0   6 10  & rssi $90lob213   0   0   5 10  & $90lob220   0   0   6 10  & $90lob264   0   0   6 10  & $90lob238   0   0   5 10  & $90lob344   0   0   5 10  & $90gpsa7   0   38281248  -77448408& 

you can put in same node, because both actions serve same objective in application. can see in documentation : http://wiki.ros.org/nodes, nodes meant operate @ fine-grained scale, not fine propose. so, yes, should put 2 parsings in same node.