or 
$line =~ s/(\$\w+->{\w+})/"$1 or ''"/eeg;
# or
$line =~ s/(\$\w+->{\w+})/eval "$1" or ''/eg;
# or my favorite
$line =~ s/(\$\w+->{\w+})/eval "$1" or 
           print(STDERR "$1 is not defined\n"), ''/eg;

[download]
-- gam3
A picture is worth a thousand words, but takes 200K.

In reply to Re^2: Use of uninitialized value in substitution iterator in variable expansion by gam3
in thread Use of uninitialized value in substitution iterator in variable expansion by jaco

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