Hi Laurent,
I had the same problem, except for the "5-7". I only had to remove multiple
entries with identical page numbers. A search for buzzword index in the
archives should unearth that thread ("Index and Pagenumbers").
Important parts:
------------ by Jeremias Maerki -------------
* XSL 1.1 contains support for building indices but that hasn't been
implemented in FOP, yet.
------------ by Jeremias Maerki -------------
At the moment, the resolution of page-number-citations can happen in two places
at the moment: 1. In PageNumberCitationLayoutManager where the page number is
directly entered as a TextArea if the target page is already known. 2. In
area.inline.UnresolvedPageNumber if the target page is only known at a later
stage. In this case the page number is squeezed into some pre-reserved space.
This avoids a two-pass layout approach that other implementations use but it
has its limitations.
The problem for you: In case 2, the layout engine is no longer operating and
you cannot adjust properly for larger amounts of text (multiple p-n-cs that are
suddenly gone). However, since word indices are normally at the end of a
document, this might be something you can avoid.
------------- by Andreas Delmelle ------------
I once started gathering some thoughts on the topic, but didn't get very far...
See: http://wiki.apache.org/xmlgraphics-fop/FormattingObjectsForIndexing
By itself, the implementation of the 'index-key' property is not that
difficult. It is its treatment further on during layout/rendering that will be
a challenge.
If you're interested, I'll be glad to co-operate on this one.
-----------------------------------------------
My personal solution was actually: I generated the fo-file to area tree, read
the page numbers, deleted entries from the original fo file and generated the
resulting fo-file to pdf.
Regards,
Georg Datterl
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-----Ursprüngliche Nachricht-----
Von: Laurent Caillette [mailto:laurent.caille...@ullink.com]
Gesendet: Mittwoch, 19. August 2009 11:39
An: fop-dev@xmlgraphics.apache.org
Betreff: Referencing multiple pages for index entries
Hi all,
First, I'd like to thank all FOP developers for creating such a great tool that
tackles really, really hard problems. I'm developing an OSS tool for generating
PDF (and other formats) from a wiki-like syntax and it uses FOP instensively.
Now I met some people that could be interested by Novelang (the OSS tool of
mine) but they need index entries. XSL 1.1 specification supports this, but in
the short term FOP doesn't seem to be implementing it.
FO markers are great for single pages, but they come short when referencing
several pages, as we don't want duplicate entries like "3, 3, 5, 6, 6, 7" ("3,
5-7" wanted instead).
A solution for a reasonable amount of work seems to be a FOP extension acting
like a marker but supporting multiple entries, calculating page ranges and
removing duplicates.
I've looked at extension samples (MathML, Barcode4J). They all work as
rectangular graphical areas. I could find none working as a text flow.
- Is it possible to implement an extension generating text flow?
- If yes, where can I find such an example?
- If no, any other idea?
Regards,
Laurent Caillette
http://novelang.sourceforge.net
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