[liblouis-liblouisxml] Hyphenation, I think I have got it, but may have found more bugs
- From: Michael Whapples <mwhapples@xxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Tue, 09 Jun 2009 11:54:55 +0100
Hello,
After looking at the liblouisxml code a bit more and a bit of thinking I
believe I now have worked out the hyphenation problems I was having, it
seems to work both for mode=0 and mode=1 now. When I say working, it
gives what seems sensible although possibly at times I might personally
add another potential hyphenation point if I were doing it manually. My
work containing this working code has been committed to mercurial on
http://bitbucket.org/mwhapples/jlouis should anyone wish to look at it.
Unfortunately I think I have found a few more bugs (I suppose this is
what comes of trying to create full bindings for a library).
The first is that when I use mode=1 sometimes my application (Test.java)
was crashing with a load of glib errors and messages I didn't
understand. The other time I had come across these sorts of errors was
when I passed the wrong size arrays to liblouis in some of the other
function calls. So I guessed that may be it was something to do with the
difference in size of the translated text I passed in and the back
translated text lou_hyphenate would create to perform the hyphenation,
and sure enough when I set the array size of hyphens to twice the size
of inlen, all these errors have gone away. The docs say that hyphens
should be of size inlen.
Secondly I previously reported getting values other than '0' and '1' in
hyphens, I believe these may be occurring around contractions and only
seems to happen for mode=1. Could this be due to the values in each byte
for the back translated hyphens being combined (eg. added together) when
translation is done back for the calling app? If this is the case may be
that's why sometimes I would personally find one more potential
hyphenation point than liblouis.
Michael Whapples
For a description of the software and to download it go to
http://www.jjb-software.com
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