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The following variables are altered by C<DB::eval()> during its execut +ion. They are "stacked" via C<local()>, enabling recursive calls to C<DB::eval() +>. ... $single = $osingle; $^D = $od; }
{ local( $trace, $single, $^D ); ... @res = eval "$usercontext $evalarg;\n"; # '\n' for nice recur +sive debug }
# 'my' would make it visible from user code # but so does local! --tchrist
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