On Wed, Sep 28, 2005 at 10:48:11PM +0800, Manuel Mall wrote: > Jeremias, > > looks OK to me although a bit strange but hey...that's the spec. > > On Wed, 28 Sep 2005 10:00 pm, Jeremias Maerki wrote: > > I've just stumbled over the testcase block_margin_inherit while > > fixing problems revealed by the test suite after having > > space-resolution work on blocks. Here's how it looks like: > > > > <fo:flow flow-name="xsl-region-body"> > > <fo:block margin="5%" background-color="yellow"> > > <fo:block margin="inherit" background-color="blue"> > > margin="inherit" - should have the same margin as the > > enclosing block </fo:block> > > </fo:block> > > <fo:block>Yellow block has margin="5%" - 18pt margin based > > on 5in page width</fo:block> </fo:flow> > > > > The 5% in this case evaluate to 18000mpt. "margin", as a short-hand, > > results in space-before and space-after of 18000mpt each, and that > > for both blocks. In terms of 4.3.1 Space-resolution Rules, we have > > two sequences of space-specifiers due to stacking constraints. On the > > before edge, we have case 1 (under 4.2.5 Stacking Constraints), and > > on the after edge, we have case 2. > > > Agree > > > All space-specifiers are not conditional, because of 5.3.2 (last > > sentence in first paragraph). So, rule 1 in 4.3.1 does not suppress > > any space-specifiers. Rule 2 doesn't apply, either, since no > > space-specifier is forcing. Going on to rule 3 we have to collapse > > the two space-specifiers to one. > > > Agree > > > What's the effect? The test now fails because the space-resolution > > wasn't taken into account. Furthermore, the result looks funny due to > > the background colors. Both times it's the last space-specifier that > > survives (rule 3, second part) and I'm strictly taking the last by > > looking at the block-progression-direction here. > > > Agree
I agree with your arguments. If I understand you correctly then this implies that the resulting space-start is 18000mpt, blue, and the space-end is 18000mpt, yellow. But I do not see that in the attached pdf file, in which the space-start is yellow and the space-end is blank. Simon > > > So this may be a somewhat unexpected result but I think it's correct. > > If anyone could verify that, I'd be grateful. > > > Agree > > > I'm attaching the PDF output of my local code. > > > > Jeremias Maerki > Manuel -- Simon Pepping home page: http://www.leverkruid.nl
