Hi,
After some googlezing:
reading [1]
ཀ is the consonant KA.
IIUC, consonants can be stacked; in this case, KA becomes the sujoined
consonant ྐ (AKA ྐ).

reading [2]
in addition, there can be a character shaping mechanism, probably as Arabic.

Unfortunately, FOP supports neither character stacking nor character
shaping.

Note that some contributors are working on implementing Arabic (witch
needs character shaping and right-to-left mode) (see [3]).

That said, any help is welcome to extend FOP support for not Latin scripts.

[1] http://www.unicode.org/charts/PDF/U0F00.pdf
[2]
http://www.thlib.org/tools/#wiki=/access/wiki/site/26a34146-33a6-48ce-001e-f16ce7908a6a/encoding%20model%20of%20the%20tibetan%20script%20in%20the%20ucs.html
[3] https://issues.apache.org/bugzilla/show_bug.cgi?id=32789

--
Pascal

Le 01/06/2010 20:16, ruud grosmann a écrit :
> hi list,
>
> I have installed debian package 1:0.95.dfsg
> and use the TibetanMachineUni.ttf font from debian package ttf-tmuni 1.901b-1
>
> I have a problem with this font when I use fop to create a pdf. In
> tibetan, letters can be stacked. Unicode supports this; when I put
> རྐ in a HTML page, I get the result I expect. But when I
> use fop, it displays a wrong version of it. Fop seems to select a
> wrong character.
>
> I have enclosed the fo source to test this, the resulting pdf and two
> screen shots from a font editor.
>
> Does anybody know why this happens?
>
> attachments: rka.png contains the letter I expect (browsers show this one);
> rka3.png contains the letter that is displayed instead. tib.fo is the
> source of the test, tib.pdf the output.
>
> thanks in advance, Ruud
>   


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