Problems with hyphenation and links

[spam_from_fop_dev]

Dear FOP developers,

I sent a message to this list last week describing various problems
that I've encountered with FOP (look for "Probs with underline,
background, hyphenation, svg and more").  No-one has replied :-(
It would be really good to get someone's opinion, especially with
these two which I don't have a work-around for:

Hyphenation:
------------

Hyphenation works when there is more than one word in the block.  If
there is only one word in the block, it is not hyphenated.  I think it
should be.  If I have one word in the block and the source has
whitespace before and after it, I get a run-time error.  Here's the
example:

<?xml version="1.0" encoding="UTF-8"?>
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format";>
  <fo:layout-master-set>
    <fo:simple-page-master margin-right="25mm" margin-left="25mm"
                           margin-bottom="20mm" margin-top="15mm"
                           page-height="297mm" page-width="210mm"
                           master-name="a4">
      <fo:region-before extent="10mm"/>
      <fo:region-after extent="10mm"/>
      <fo:region-body margin-bottom="15mm" margin-top="15mm"/>
    </fo:simple-page-master>
  </fo:layout-master-set>
  <fo:page-sequence master-name="a4">
    <fo:flow flow-name="xsl-region-body">

      <fo:block language="en" hyphenate="true">
        Thisparagraphwillbehyphenated becauseithasmorethanonewordinit
        andthisseemstoworkok.  Theseverylongwords existonlysothat
        thereisahighprobability thathyphenationwillberequired.
      </fo:block>

<!-- Uncommenting this block gives "ERROR: null".  This is identical to the
     next block apart from white space before and after the single very-long
     word.
     <fo:block language="en" hyphenate="true">
        
ThisparagraphwillnotbehyphenatedbecauseitcontainsonlyoneextreemelylongwordandthisdoesnotseemtoworkIwasoriginallysufferingfromthisproblemintableswithnarrowcolumnsandwiththingslikeURLsthatareoftenverylongwithnospacesinthem.
      </fo:block> -->

<!-- there should be no line breaks in the following; watch out if
they have been added "in the post". -->

      <fo:block language="en" 
hyphenate="true">ThisparagraphwillnotbehyphenatedbecauseitcontainsonlyoneextreemelylongwordandthisdoesnotseemtoworkIwasoriginallysufferingfromthisproblemintableswithnarrowcolumnsandwiththingslikeURLsthatareoftenverylongwithnospacesinthem.</fo:block>

    </fo:flow>
  </fo:page-sequence>
</fo:root>


Links:
------

When I try this code, containing a basic-link and a break-before="page":

<?xml version="1.0" encoding="UTF-8"?>
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format";>
  <fo:layout-master-set>
    <fo:simple-page-master margin-right="25mm" margin-left="25mm"
                           margin-bottom="20mm" margin-top="15mm"
                           page-height="297mm" page-width="210mm"
                           master-name="a4">
      <fo:region-body margin-bottom="15mm" margin-top="15mm"/>
    </fo:simple-page-master>
  </fo:layout-master-set>
  <fo:page-sequence master-name="a4">
    <fo:flow flow-name="xsl-region-body">

      <fo:block>
        <fo:basic-link internal-destination="Y">
          X
        </fo:basic-link>
      </fo:block>

      <fo:block break-before="page"/>

      <fo:block id="Y"/>

    </fo:flow>
  </fo:page-sequence>
</fo:root>

I get this output:

FOP 0.20.1
using SAX parser org.apache.xerces.parsers.SAXParser
building formatting object tree
setting up fonts
 [1] [2ERROR: The id "Y" already exists in this document


Any help very, very much appreciated.

--Phil.

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