[Orca-users] Re: Error: Use of uninitialized value in array ...

[jon.tankersley at sabre.com]

I've been wading trough the code....

SourceFile.pm has the warnings that we're seeing.  What they are
are two separate instances of come checks.

The column heading information from the percol is loaded into an array 
and the plot 'data' is compared to that array.  If the plot requests 
data that isn't there, it generates the no substitution message.  This 
can happen if you have the generic config with HME0, HME1, QFE0 and 
you don't have any HME cards.

The second (eval) error occurs because it can't successfully parse the  
plot data line (missing heading wasn't replaced so the eval fails).

I asked Blair why he went ahead with the eval, he does it to allow 
data lines like
data 50 * 1000 * 1000 * 8
to generate constant 'lines' in the plot.

I'm still looking at it to see if we can 'skip' lines if there are any 
unresolved 'headings' and not do the eval.  This should eliminate the 
warnings we're seeing.

The code is pretty slick through that section, it won't generate any 
plots of there are no data to be plotted, however there may be some 
eval structures, etc. that are 'leaking' memory.  At least on the SGI 
where I'm running orca.