Re^2: subrefs, IPC and gnuplot's tkcanvas

I tried eval, but get errors like

  my $gnuplot = eval \$buffer->($canvas); 
 #OUTPUT:
 #Undefined subroutine &main::sub {
[download]

 my $gnuplot = eval \$buffer;  
 $gnuplot->($canvas); 

# OUTPUT
# Use of uninitialized value in subroutine entry at ....
# Undefined subroutine &main:: called at ./zz-std.....
[download]

I'm not really a human, but I play one on earth. Cogito ergo sum a bum

Comment on Re^2: subrefs, IPC and gnuplot's tkcanvas Select or Download Code

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Re^3: subrefs, IPC and gnuplot's tkcanvas by alpha (Scribe) on Dec 29, 2006 at 18:12 UTC
eval($buffer), not \$buffer. same with $buffer->($canvas).	[reply]
Re^4: subrefs, IPC and gnuplot's tkcanvas by zentara (Cardinal) on Dec 29, 2006 at 18:51 UTC
Thanks, it was as simple as `my $can = $canvas; eval($buffer);` [download] I did need to convert the name $canvas to $can. While I was waiting for your reply, I also found that this worked `use Sub::Install; Sub::Install::install_sub({ code => sub {eval $buffer}, into => main::, as => 'foo' }); &foo($canvas);` [download] Thanks again. I'm not really a human, but I play one on earth. Cogito ergo sum a bum	[reply] [d/l] [select]