[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: CDATA Section [binary data in...]
I've seen reference to base64 many times now, where can I find a spec for this? ..dan At 10:24 AM 10/29/99 -0600, Gordon, Simon wrote: >-----Original Message----- >From: Ken Gentle [mailto:j.kenneth.gentle@a...] >Sent: Wednesday, October 27, 1999 12:04 >To: xml-dev@i... >Subject: Re: CDATA Section [binary data in...] > > >>>At 11:33 AM 10/27/99 -0600, you wrote: >>>Remember the XML 1.0 definition: CDATA sections are "used to escape blocks >>>of text containing characters which would otherwise be recognized as >>>markup". Nothing about this implies including XML-illegal characters. >>> >>>Re Tim Bray's "CDATA Sections and Binary Data" note: >>> http://www.xml.com/axml/notes/CDprob.html >>>I've never read this to state that you can put _raw_ binary data in a >CDATA >>>section. The phrase "When you look at CDATA, you might get the impression >>>that you could maybe jam your binary data in a CDATA section. You'd be >>>right, but..." may be a little misleading, but do remember that these are >>>just explanatory notes that can never be taken to contradict the XML 1.0 >>>spec itself! >>> >>>Yes, base64 is a good method of cramming binary data into a CDATA section, >>>just be certain that a "]]" can't appear in the encoded data. >> >>Can't happen in base64 -- neither "]" nor ">" are legal characters. >> >>This is precisely how our application is embedding "binary" data in XML >>documents: Base64 transfer encoding in a CDATA section. >> > >As Tim says in his annotation, if you use Base64 then you don't need the >CDATA section as _none_ of the XML reserved chars appear in the Base64 >character set (A-Za-z0-9/+). >> >> >> Ken >> >>> >>>Regards, >>> Nik O, Teton Data Systems, Jackson, Wyo. >>> > >Regards, > >Simon Gordon >Systems Engineer, >Systems Integration, >x5472 > >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/ and on CD-ROM/ISBN >981-02-3594-1 >To unsubscribe, mailto:majordomo@i... the following message; >unsubscribe xml-dev >To subscribe to the digests, mailto:majordomo@i... the following message; >subscribe xml-dev-digest >List coordinator, Henry Rzepa (mailto:rzepa@i...) > --------------------------------------------------------------------------- Danny Vint http://www.dvint.com Author: SGML at Work http://www.slip.net/~dvint/pubs/sgmlatwork.shtml mailto:dvint@s... Calian Voice:804-975-3482 mailto:d.vint@c... Charlottesville, VA Office http://www.calian.com 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/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe 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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