XML Marshalling of objects

David Bolen db3l at fitlinxx.com
Wed Oct 3 22:41:14 CEST 2001


Markus Schaber <markus at schabi.de> writes:

> <xml "dtd-declaration here">
> <pickled_data>Here just follows the data stream from 
> pickle()</pickled_data>
> </xml>
> 
> Just write the two-liner dtd for it, and you have pickle outputting
> valid xml, and with almost no speed loss :-)

Even if you make the pickled_data element in your DTD a CDATA you're
going to have to post-process the pickle output to ensure it doesn't
include any characters that need to be quoted as entities in the XML
stream (e.g., "<").  Then of course, you've to to invert this on the
other side, so there's going to be some cost to the encoding/decoding.

Might almost be better to use the binary pickle form, and then base64
encode it, since that should be safe for an XML element content.

--
-- David
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