Thanks, and sorry I wasn't clear - I was absolutely expecting that the solution would need some other module, that's certainly acceptable. I've added a note to that effect on the OP.

I'll have to have a play with this - I guess I skipped past it too quickly when looking at the Data::Dump docs, possibly because the only mention I saw there was the unwieldy-seeming dumpf(..., \&filter).

In reply to Re^2: Dumping opaque objects by hv
in thread Dumping opaque objects by hv

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