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Re: Propose to add 'group-by' option to p:wrap and p:wrap-sequence

From: Innovimax SARL <innovimax@gmail.com>
Date: Thu, 24 May 2007 16:46:58 +0200
Message-ID: <546c6c1c0705240746h26c984d0j34a3c999a8b655ea@mail.gmail.com>
To: "Henry S. Thompson" <ht@inf.ed.ac.uk>
Cc: public-xml-processing-model-wg <public-xml-processing-model-wg@w3.org>

Are you saying that
p:wrap
option : wrapper (QName)
option : match (XPath)
option : group-by (XPath with matched node as context evaluated as a string key)
option : ignore (Pattern matching the ignorable nodes)

p:wrap-sequence
option : wrapper (QName)
option : match (XPath)
option : group-by (XPath with matched node as context evaluated as a string key)


How will it works for flatten hierarchie ?
<div>
  <h1>...</h1>
  <h2>...</h2>
  <p>..<p>
  <h2>...</h2>
  <h3>...</h3>
  <p>..<p>
  <p>..<p>
  <h2>...</h2>
  <p>..<p>
  <h1>...</h1>
  <h2>...</h2>
  <p>..<p>
  <h2>...</h2>
  <h3>...</h3>
  <p>..<p>
  <p>..<p>
  <h2>...</h2>
  <p>..<p>
</div>

I want this

<div>
  <wrapper>
  <h1>...</h1>
  <h2>...</h2>
  <p>..<p>
  <h2>...</h2>
  <h3>...</h3>
  <p>..<p>
  <p>..<p>
  <h2>...</h2>
  <p>..<p>
  </wrapper>
  <wrapper>
  <h1>...</h1>
  <h2>...</h2>
  <p>..<p>
  <h2>...</h2>
  <h3>...</h3>
  <p>..<p>
  <p>..<p>
  <h2>...</h2>
  <p>..<p>
  </wrapper>
</div>

How will I do that ?


Mohamed
On 5/24/07, Henry S. Thompson <ht@inf.ed.ac.uk> wrote:
>
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> Further to the action I took a few weeks ago, I propose that we add an
> optional 'group-by' option, with value an XPath expression, to the
> required p:wrap and p:wrap-sequence steps, semantics as follows:
>
> For p:wrap, 'adjacent' matches of the 'match' option which have the
> same string value for the 'group-by' expression, given the matched
> node as context node, are wrapped together in a single 'wrapper'
> element.  Matches are 'adjacent' if they are siblings, and nothing
> intervenes between them except all-white text nodes, comment nodes and
> processing instruction nodes (but see below under 'ignore').
>
> If control over what is ignored in determining 'adjacency' is felt to
> be necessary, an optional 'ignore' option could be added, value an
> XPath expression, to specify what nodes can be ignored between
> matching siblings for grouping purposes.  I have a modest inclination
> not to provide this. . .
>
> For p:wrap-sequence, documents are grouped and wrapped so that each
> output document wraps input documents which have the same string value
> for the 'group-by' expression, given their document node as context
> node.  This may result in a sequence output.
>
> ht
> - --
>  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
>                      Half-time member of W3C Team
>     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
>             Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk
>                    URL: http://www.ltg.ed.ac.uk/~ht/
> [mail really from me _always_ has this .sig -- mail without it is forged spam]
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Received on Thursday, 24 May 2007 14:47:16 GMT

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