[FOP-2809] Excessive wrap when having linefeed-treatment="preserve" and inlines

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.3
• Component/s: layout/line
• Assignee: Unassigned
• Reporter: Dan Caprioara
• Created: 06/Aug/18 12:45
• Updated: 06/Sep/19 13:28

Description

The text should be presented on two lines (they are separated by line breaks - not by wrapping - is plenty of space in the page):

line1 line1 line1 line1 LINE1
line2

Instead it is on three lines.

line1 line1 line1 line1
LINE1
line2

The snippet:

<?xml version="1.0" encoding="UTF-8"?>
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format"
  xmlns:fox="http://xmlgraphics.apache.org/fop/extensions" xml:lang="en-us">
  <fo:layout-master-set>
    <fo:simple-page-master master-name="css2fo-default" page-width="8.5in" page-height="11in">
      <fo:region-body margin="1in"/>
    </fo:simple-page-master>
  </fo:layout-master-set>
  <fo:page-sequence master-reference="css2fo-default" force-page-count="no-force"
    id="last-page-sequence" line-height-shift-adjustment="disregard-shifts">
    <fo:flow flow-name="xsl-region-body">
        <fo:block-container>
          <fo:block linefeed-treatment="preserve" wrap-option="wrap"><fo:inline>line1 line1 <fo:inline>line1 line1 LINE1</fo:inline>
<fo:inline>line2</fo:inline></fo:inline></fo:block>
        </fo:block-container>
    </fo:flow>
  </fo:page-sequence>
</fo:root>

If you add more words to the example, you will see that it always add a break before the second-to-last word.
If you remove the inline: <fo:inline>line2</fo:inline> and leave just the line2 text, this corrects the problem. The same if you remove the tags of any inline.