XML - NG

David LeBlanc whisper at accessone.com
Fri Jan 15 04:11:36 GMT 1999


I was making a distinction between the author (writer) of a document
conforming to some DTD and the designer of the DTD that the author was using.

I hadn't considered the situation where a DTD was not present argh!

I didn't know that CDATA content was broken in SGML and thus inherited by XML.

Dave LeBlanc

At 12:46 PM 1/14/99 -0500, Chris Maden wrote:
>> Date: Sat, 06 Feb 1999 17:09:01 -0800
>> From: David LeBlanc <whisper at accessone.com>
>> 
>> What I would like is a content type (call it UPDATA), that has a
>> distinct start and stop tag (<UPDATA> ..... </UPDATA>) that is
>> entirely unparsed.  This would be useful for content that has lots
>> of significant characters..  like xml itself. In fact, I was
>> thinking that it could be <CDATA>....  </CDATA>, but I now realize
>> that there's a lot of freight attached to that character combination
>> :-).
>> 
>> It seems blechy to have to declare content PCDATA and then do the
>> <[CDATA[ ... ]]> thing in the document. It forces the author of a
>> document rather then the designer of a document class to be
>> responsible for "escaping" content.
>
>Your proposal uses a fixed element type.  What's the difference
>between a fixed element type <UPDATA>...</UPDATA> and a fixed string
><![CDATA[...]]>?  Why is requiring the author to insert an <UPDATA>
>element less onerous than requiring the author to insert a CDATA
>marked section?
>
>If you want to allow *different* elements to be "UPDATA", then you
>have a situation where reading or not reading the DTD results in
>radically different interpretations of data, violating a major goal of
>the XML effort.
>
>-Chris
>-- 
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