Thanks. That makes sense. Courtesy of XML::Writer, \$doc is a reference to an XML::Writer::_String object instead of a reference to a scalar, as I expected.

gzip does lots of different things depending on its first arg. Of course, the docs for Gzip say that if the first arg isn't something it expects (a filename, filehandle, scalar reference, array reference, or an Input FileGlob string), it will return undef. Instead, it dies. How rude.

In reply to Re^2: XML::Writer oddness by TedHopp
in thread XML::Writer oddness by TedHopp

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