Status(data - or something like that?)

["Richard Alford" <richard.alford@xxxx>]

I am running esignal during the day and qp2 for historical 
data (before 2-days ago it appears.)  I would like to have an indicator 
which determines in psuedo code:
 
if esignal
     then sym = "dia"
else
    then sym = "!dji"
 
plot(foreign(sym), etc...
 
Basically because I cannot get the systems to "merge" the 
symbols used, i.e. $SPX on esig and !SPY on qp2, or worse, $INDU in eSig and 
!DJI qp2, I am trying to switch to the tracking stock during the 
day.
 
Any suggestions? 
 
Thanks,
 
Richard
 
p.s. best solution would have a mapping table (regular 
expression syntax?) for mapping data providers....