Date: Thu Nov 06 2008 - 13:10:42 PST
Hi Michael,
I am surprised that
<fo:inline>W</fo:inline><fo:inline>A</fo:inline><fo:inline>V</fo:inline>
gives different output to:
<fo:inline>WAV</fo:inline>
I am trying to comparing PDF output that is generated in different ways and want to make sure that it produces exactly the same results for unit testing purposes. For example, in one case some content make come from a database and in the other the content is input directly - in both cases the text content is the same but there may be some extra fo:inline containers.
I expected the two PDF/PS outputs to be identical as I considered an fo:inline with no attributes to be a content neutral container. I couldn't see anywhere in the spec that said that they are not.
Given that they are not in XEP, is there a way to ensure that the output is identical, other than to strip empty fo:inline elements prior to transforming (this would be a costly step that I'd like to avoid)?
Regards,
Justin.
Michael Sulyaev wrote:
Justin Lipton wrote:
Any idea what could be causing this difference?
Hello Justin.
I have inspected the files. Can you claim any of the two renderings being wrong? I cannot. The reason for the difference is likely to be the [special] handling of white space at the end of a text node (after ':' in a1.fo).
You would not be surprised that
<fo:inline>W</fo:inline><fo:inline>A</fo:inline><fo:inline>V</fo:inline>
is rendered differently from
<fo:inline>WAV</fo:inline>
, would you? Kerning may not happen in the former case (across element boundaries).
But why do you compare the renderings of two similar but different FO files? What is your goal? Regression testing? Than why are the FOs different?
Regards,
Michael Sulyaev
RenderX
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Justin Lipton
justin.lipton@exari.com
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Tel +61 3 9621 2775 | Fax +61 3 9621 2776
Exari Systems
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