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<p>Greetings,</p>
<p>SIL added a JSTF table to some of our Arabic fonts (Lateef,
Harmattan, Scheherazade), you can see what was added to
Scheherazade below</p>
<p><a class="moz-txt-link-freetext" href="https://github.com/silnrsi/font-scheherazade/commit/0aa388a0b3a59221f3c13e6b5803215f22bf6655">https://github.com/silnrsi/font-scheherazade/commit/0aa388a0b3a59221f3c13e6b5803215f22bf6655</a></p>
<p>The commit message says "Add JSTF table to identify possible
kashida glyphs". I thought this was added (notes from someone
else) because when justification was turned on in Word, it would
break the lam/alef ligature by inserting a kashida. But I am
unable to actually test this at the moment.<br>
</p>
<p>Bobby<br>
</p>
<div class="moz-cite-prefix">On 2024-02-21 09:13, John Hudson via
mpeg-otspec wrote:<br>
</div>
<blockquote type="cite"
cite="mid:ee32cbe1-a731-4815-b60c-d0bbfad12092@tiro.ca">Simon
Cozens attempted an implementation of JSTF table support a few
years ago, in an effort to find out whether it was actually
implementable. As I recall, he determined that much of it could be
implemented, but that there were some holes or things that could
be improved. As far as I know, there is no JSTF table support in
any shipping software, which I guess at least means we wouldn’t
break anything were we to revise the spec to produce something
workable for CSS.
<br>
<br>
JH
<br>
<br>
<br>
On 2024-02-20 12:39 pm, Vladimir Levantovsky via mpeg-otspec
wrote:
<br>
<blockquote type="cite">The liaison statement I mentioned during
today's call can be found here:
<br>
<a class="moz-txt-link-freetext" href="https://lists.w3.org/Archives/Public/www-archive/2020Feb/att-0005/CSS-SC29-20200113.pdf">https://lists.w3.org/Archives/Public/www-archive/2020Feb/att-0005/CSS-SC29-20200113.pdf</a>
<br>
<br>
One of the aspects mentioned in the CSS WG statement is related
to using cursive elongation for text justification purposes,
which may be desirable for cursive writing and could be
essential e.g. for many Arabic scripts - I am wondering if this
can already be accomplished using JSTF table, and whether the
existing specification needs to be updated to support it.
<br>
<br>
Thanks,
<br>
Vladimir
<br>
<br>
<br>
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<a class="moz-txt-link-freetext" href="https://lists.aau.at/mailman/listinfo/mpeg-otspec">https://lists.aau.at/mailman/listinfo/mpeg-otspec</a>
<br>
</blockquote>
<br>
</blockquote>
<div class="moz-signature">-- <br>
Bobby de Vos<br>
<em><a class="moz-txt-link-abbreviated" href="mailto:bobby_devos@sil.org">bobby_devos@sil.org</a></em><br>
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