[jira] [Commented] (FOP-2374) space missing before fo:page-number-citation-last in PDF output

["Robert Meyer (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FOP-2374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071659#comment-14071659 ] 

Robert Meyer commented on FOP-2374:
-----------------------------------

I've been taking a look at this. Since it's in the layout engine it goes without saying that it's not the easiest thing to diagnose and fix but my guess would be it's an issue with the InlineKnuthSequence.addALetterSpace method. If you comment out the removeLast() from that method it leaves the space along with some others added during the layout process. The method removes those extra spaces correctly but is I imagine being too greedy and removes the valid one in the string as well. I've yet to fully understand the logic going on here but will keep this updated if I find more time to look at this and make some more progress.

> space missing before fo:page-number-citation-last in PDF output
> ---------------------------------------------------------------
>
>                 Key: FOP-2374
>                 URL: https://issues.apache.org/jira/browse/FOP-2374
>             Project: Fop
>          Issue Type: Bug
>          Components: renderer/pdf
>    Affects Versions: 1.1
>            Reporter: Jason Harrop
>            Priority: Minor
>             Fix For: trunk
>
>         Attachments: _test.fo
>
>
> When you generate a PDF from FO such as:
> <fo:block><fo:inline>of </fo:inline><fo:page-number-citation-last ref-id="page2"/></fo:block>
> the whitespace between the word "of" and the page-number-citation-last element is lost.
> In http://apache-fop.1065347.n5.nabble.com/preserving-a-trailing-space-in-inline-td40644.html  Pascal Sancho 
> diagnosed that the issue arises when a fo:page-number-citation-last (PNCL) comes after a fo:inline element
> and no content comes after the PNCL.
> He also identified a workaround: "Just add a character AFTER the PNCL element other than a regular white space"
> I'm also attaching his test FO file



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