How to use binary data with XML?

Matthew Sergeant (EML) Matthew.Sergeant at
Wed Apr 21 10:49:37 BST 1999

> -----Original Message-----
> From:	David Brownell [SMTP:david-b at]
> John Cowan wrote:
> > 
> > > (2)  Just like in HTML, binary data is _referenced_ by the XML
> document,
> > > correct?
> > 
> > Typically.  Nothing prohibits you from encoding binary data as
> > Base64 and incorporating it into an XML document, but nobody has
> > converters for that yet either.
> Actually, I've seen bunches of those; there's no difficulty in
> writing them.  Just define a way to tag the binary data as
> whatever you wanted ... maybe something like
> 	<mime content-type="... some MIME content type ...">
> 	... Base 64 encoded content ...
> 	</mime>
	I used <tag xml:encoding="base64"> when I implemented this - I seem
to recall that was suggest by Tim Bray... (sorry Tim if it wasn't you!).
I'll try and dig out the email where he (?) mentioned that this might be one
of the things considered for XML 2.


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