W3C home > Mailing lists > Public > public-xml-processing-model-wg@w3.org > April 2006

Re: XProc: An XML Pipeline Language

From: Rui Lopes <rlopes@di.fc.ul.pt>
Date: Tue, 11 Apr 2006 11:47:15 +0100
Message-ID: <443B8933.5050905@di.fc.ul.pt>
To: Norman Walsh <Norman.Walsh@Sun.COM>
Cc: public-xml-processing-model-wg@w3.org
Norman Walsh wrote:
> / Norman Walsh <Norman.Walsh@Sun.COM> was heard to say:
> | I tinkered a bit more today, sketching a few example components in the
> | standard library. I'm not entirely happy with the markup, the tabular
> | summary, or the graphics. But it's a start.

A few questions/suggestions:

1) "Pipelines must be acyclic. XProc does not support iteration."

I believe the word "iteration" may be percepted as "iteration over a 
collection", instead of cycles within the pipeline graph (if I 
understood your wording correctly).

2) "load" component: I don't undestand the difference between having 
this component instead of implicit URIs declared in some step. From your 
other post to the mailing list I understand the need for the "save" 

3) "identity" component: for clarification purposes, allowing multiple 
inputs and outputs should require explicit binding between each 
input/output pair? Something like:

<p:step name="identity">
   <p:input name="i1" select="somedocument" />
   <p:input name="i2" select="anotherdocument" />
   <p:output name="o1" select="i1" />
   <p:output name="o2" select="i2" />

4) "xslt" component: being XSLT 1.0, I believe it should state "input 
document+" and "output document". Currently, the opposite is being stated.


Received on Tuesday, 11 April 2006 10:47:18 UTC

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