Another library which provides logical to visual transformation is ICU
(see http://site.icu-project.org/ ).
Shalom (Regards), Mati
Bidi Architect
Globalization Center Of Competency - Bidirectional Scripts
IBM Israel
Phone: +972 2 5888802 Fax: +972 2 5870333 Mobile: +972 52
2554160
From:
Dov Grobgeld <[email protected]>
To:
Gadi Cohen <[email protected]>
Cc:
Matitiahu Allouche/Israel/i...@ibmil, [email protected],
[email protected]
Date:
18/01/2010 05:40 م
Subject:
Re: Hebrew search in PDFs is backwards?
You can easily do it with fribidi through the fribidi_log2vis() function.
fribidi is wrapped by pango, but it does not export its API. It does
export pango_log2vis_get_embedding_levels() but you'll have to work a bit
more to use this function.
Regards,
Dov
On Mon, Jan 18, 2010 at 16:28, Gadi Cohen <[email protected]> wrote:
Matitiahu Allouche wrote:
> PDF's objective is to reflect the exact appearance of text. For
> Hebrew, it means that the text is stored in visual order. If your PDF
> viewer accepts user input in logical order (which is the case in
> Windows and Linux), it should transform search arguments (captured
> from a user dialog) from logical to visual order before performing the
> search.
Thanks, that was very helpful!
I'm now trying to implement this in Okular (instead of studying for my
exam, bad!). I've set up a KDE4 development environment, but have no
prior experience with KDE or Qt at all.
I've searched the 'net for anything relevant, and I see in older
versions of Qt there were functions like QString::visual() and
QHebrewCodec, but nothing like that exists in the latest version (4.6).
Do you (or does anyone) know how to convert a string from visual to
logical in qt4?
Or for reference purposes, do you or does anyone know offhand how one
would do this with GNOME / Pango? (Evince is next, although with any
luck I won't look at any of this again until after exams).
Thanks!
Gadi
P.S. Anyone else wondering if all this hail will crack their windows? :)
--
Gadi Cohen aka Kinslayer <[email protected]> www.wastelands.net
Freelance admin/coding/design HABONIM DROR linux/fantasy enthusiast
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