I want to use XML::Twig to parse XML that holds binary data guaranteed not to be any any particular format.

Without any input filtering, it incurs a 'not well-formed (invalid token)' warning as soon as it hits the binary data (of course).

When I read about/try the input filter options, they seem like they all expect some particular character encoding.

Is there an accepted way to convert or protect arbitrary binary data that is inline in the XML when parsing it?

The XML is not encrypted, just the tagged data.

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