[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Binary Data in XML
Yeah, but please include an xml:content-type= as a required attribute ... err or perhaps the default is xml:content-type="application/octet-stream" another alternative to xml:packed might be xml:content-encoding="base64" ?? Jonathan Borden JABR Technology Corporation mailto:jborden@m... > > > Suppose I wrote up a NOTE, should occupy less than one page, proposing > a reserved attribute xml:packed with, for the moment, only two > allowed values, "none" and "base64". The default value is "none". > If an element has xml:packed="base64" this means that > > (a) the content of the element to which this is attached must be > pure #PCDATA, no child elements and no references, and > (b) the content is encoded in base64, leading and trailing spaces allowed > > This obviously couldn't retroactively become part of XML 1.0, but > if it went through a process and became a W3C recommendation, I bet > every parser author in the world would support it in about 15 minutes. > > Base64 (a 4-for-3 encoding) wastes 33%, so I thought about perhaps > inventing Base128 (8-for-7) or maybe even a higher level to cut down > wasteage, but Base64 has the advantage that it avoids UTF8/ISO-8859 > confusion and I bet Mr. LZW will eat that 33% anyhow... > > I also thought about xml:encoding=, but that conflicts with > encoding= in the XML declaration in a confusing way. > > Are there any gotchas I'm missing? Don't know if I could persuade > one of the WGs to take it up, but it seems pretty obvious that there > is not only industry demand but in fact people doing this already, so > the case is pretty strong I think. -Tim > > > xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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