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Re: HTML and XML data parsing

• To: "Falls, Travis D (CASD, IT)" <Travis.Falls@t...>
• Subject: Re: HTML and XML data parsing
• From: Uche Ogbuji <uche.ogbuji@f...>
• Date: Thu, 01 Aug 2002 09:26:55 -0600
• Cc: "'xml-dev@l...'" <xml-dev@l...>
• In-reply-to: Message from "Falls, Travis D (CASD, IT)" <Travis.Falls@t...> of "Tue, 30 Jul 2002 16:14:14 EDT." <951967FCF5C4D211B0610008C75D2AA11224A579@c...>
• Sender: uche.ogbuji@f...

> Hello all,
> I am new to the list, and fairly new to XML.  I am implementing an I-Planet
> portal using RDF files.  I parse the files and render each channel with a
> specific xsl file.  I have a need to put a large html block in between xml
> tags, but when I parse the xml the "<" and ">" tags get changed to the
> escaped version.  How do I make this area not do this? 

This si not a direct response to your question, but I wanted to point out a 
variant approach I use.  I use Wiki text within RDF tags that contain markup, 
not HTML.  Therefor, instead of

<rdf:Description>
  <x:body rdf:parseType="Literal">
<div>
  <h1>Nde ewo</h1>
  <p><a href="http://4Suite.org">Ihe a</a> di iche</p>
  <pre></code>
spam = eggs - 1
  </code></pre>
</div>
  </x:body>
</rdf:Description>

I use

<rdf:Description>
  <x:body>
=Nde ewo=
[Ihe a|http://4Suite.org] di iche
  spam = eggs - 1
</rdf:Description>

Much less error-prone, much easier to edit and much more amenable to 
diff-based version control.  It also helps that it avoids the poorly-specified 
parseType=Literal.

I wrote a small extension element for 4XSLT for rendering this to HTML during 
transforms.

I use this technique very successfully to maintain my "Akara" documentation 
collation projects for Python/XML programming:

http://uche.ogbuji.net/tech/akara/pyxml/
http://uche.ogbuji.net/tech/akara/4suite/

Each one is completely specified as a big RDF file, and is rendered 
dynamically at request time.  Takes very little XSLT and very little Python.


-- 
Uche Ogbuji                                    Fourthought, Inc.
http://uche.ogbuji.net    http://4Suite.org    http://fourthought.com
Track chair, XML/Web Services One Boston: http://www.xmlconference.com/
Basic XML and RDF techniques for knowledge management, Part 7 - 
http://www-106.ibm.com/developerworks/xml/library/x-think12.html
Keeping pace with James Clark - http://www-106.ibm.com/developerworks/xml/libra
ry/x-jclark.html
Python and XML development using 4Suite, Part 3: 4RDF - 
http://www-105.ibm.com/developerworks/education.nsf/xml-onlinecourse-bytitle/8A
1EA5A2CF4621C386256BBB006F4CEC

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