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Re: Wording for spaces produces interpretation differences among implementations

From: Jeremias Maerki <dev@jeremias-maerki.ch>
Date: Thu, 19 Jan 2006 16:31:09 +0100
To: xsl-editors@w3.org
Message-Id: <20060119161949.A49B.DEV@jeremias-maerki.ch>

Thank you for the clarification. That helps a lot. I've already fixed the
behaviour of Apache FOP accordingly. This will be in the next release.
I'd like to ask the other implementors who did the same "mistake" to
similarly adjust their implementations in order to improve
interoperability.

Still, given the fact that roughly half of the implementations we
checked are/were doing this wrong, another attempt to make this clearer
in the spec would certainly be helpful.

On 18.01.2006 20:35:23 Grosso, Paul wrote:
> 
> The XSL FO SG has discussed this and believes
> the wording in the spec is correct rather than
> your proposed rephrasing.
> 
> Consider a <p> that gets mapped into an fo:block that, 
> due to the amount of content, generates two areas on 
> two consequtive pages.  We do not want the space before 
> the fo:block to occur also on the 2nd page. 
> 
> Paul Grosso
> for the XSL FO SG
> 
> > -----Original Message-----
> > From: xsl-editors-request@w3.org 
> > [mailto:xsl-editors-request@w3.org] On Behalf Of Jeremias Maerki
> > Sent: Monday, 2005 October 10 4:13
> > To: xsl-editors@w3.org
> > Subject: Wording for spaces produces interpretation 
> > differences among implementations
> > 
> > 
> > Dear editors, 
> > 
> > the Apache FOP team has recently stumbled over a problem 
> > concerning the
> > interpretation of the space properties. We've documented the 
> > problem and
> > our interpretation on our Wiki:
> > http://wiki.apache.org/xmlgraphics-fop/XslFoSpecificationUncer
> > tainties/SpaceTraits
> > 
> > A quick check reveals that there are differences of 
> > interpretation among
> > FO implementations. In case our interpretation is correct, I'd like to
> > ask the WG to consider a change in wording for the space properties
> > which eliminates the ambiguity.
> > 
> > Instead of:
> > Specifies the minimum, optimum, and maximum values for the 
> > space before any areas generated
> > by this formatting object and the conditionality and 
> > precedence of this space.
> > 
> > I'd write:
> > Specifies the minimum, optimum, and maximum values for the 
> > space before
> > each area generated by this formatting object and the 
> > conditionality and
> > precedence of this space.
> > 
> > Instead of:
> > Specifies the value of the space-specifier for the space before the
> > areas generated by this formatting object.
> > 
> > I'd write:
> > Specifies the value of the space-specifier for the space before each
> > area generated by this formatting object.
> > 
> > This is for space-before. The wording would need to be changed for the
> > other space properties accordingly.
> > 
> > Thank you.
> > 
> > Jeremias Maerki
> > 
> > 
> > 



Jeremias Maerki
Received on Thursday, 19 January 2006 15:33:26 UTC

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