[
Lists Home |
Date Index |
Thread Index
]
- From: Dan Vint <dvint@slip.net>
- To: xml-dev@ic.ac.uk
- Date: Fri, 29 Oct 1999 14:40:36 -0400
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@acm.org]
>Sent: Wednesday, October 27, 1999 12:04
>To: xml-dev@ic.ac.uk
>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@ic.ac.uk
>Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN
>981-02-3594-1
>To unsubscribe, mailto:majordomo@ic.ac.uk the following message;
>unsubscribe xml-dev
>To subscribe to the digests, mailto:majordomo@ic.ac.uk the following message;
>subscribe xml-dev-digest
>List coordinator, Henry Rzepa (mailto:rzepa@ic.ac.uk)
>
---------------------------------------------------------------------------
Danny Vint http://www.dvint.com
Author: SGML at Work http://www.slip.net/~dvint/pubs/sgmlatwork.shtml
mailto:dvint@slip.net
Calian Voice:804-975-3482
mailto:d.vint@calian.com
Charlottesville, VA Office http://www.calian.com
xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To unsubscribe, mailto:majordomo@ic.ac.uk the following message;
unsubscribe xml-dev
To subscribe to the digests, mailto:majordomo@ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@ic.ac.uk)
|
