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From Davanum Srinivas <>
Subject Re: A TemplateTransformer
Date Tue, 10 Jul 2001 16:28:01 GMT
There was a thread on XML-DEV. Here's a summary:


--- Berin Loritsch <> wrote:
> I would like to create a TemplateTransformer that is immenently easier
> for designers to use than for them to learn XSLT.  This is so that we
> can leverage our current investment in standard web site design products.
> There are a couple of issues.  It is easy to embed includes, but it is
> much more difficult to reference the incomming SAX stream as it is
> comming in.
> The way it would work is you place your XHTML in a file, and you have
> a namespace to tell when the XHTML wants elements from the input SAX
> stream.  It would be something as simple as this:
> <template:body/>
> The TemplateTransformer would specify its information like this:
> <map:transform type="template" src="site.xhtml">
>   <map:parameter name="title" value="xpath:/document/head/title"/>
>   <map:parameter name="menu" value="cocoon://menu.xml"/>
> </map:transform>
> For an example of what happens, let me declare a simple XHTML template:
> <html>
>   <head>
>     <title><template:title/></title>
>   </head>
>   <body>
>     <h1><template:title/></h1>
>     <table>
>      <tr>
>       <td><template:menu/></td>
>       <td><template:body/></td>
>      </tr>
>     </table>
>   <body>
> </html>
> As you can see, <template:body/> has a specific predefined meaning
> (the SAX stream).  The other <template:foo/> elements have a meaning
> defined in parameters.  The major thing is resolving an xpath on the
> incomming SAX stream.  I really only want to support simple XPATH
> expressions that refer to elements or attributes--but I want to do
> it in a performant manner.
> Does anyone have any suggestions?  I was thinking about caching the
> SAX stream until I found the value(s) I needed and then begin serializing
> SAX events.  However, I don't really like this approach unless I can
> serialize once I know I have the XPATH expressions I need.

> ATTACHMENT part 2 application/x-pkcs7-signature name=smime.p7s

Davanum Srinivas, JNI-FAQ Manager

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