On Sun, 12 Jul 2020 10:15:31 -0400 Phil M Perry <[email protected]> wrote:
> (A week ago I sent an earlier version of this query, as an > unregistered user, and it doesn't seem to have shown up. I apologize > if this is a duplicate. I'm registered to receive the digest now.) > > I have been using the Perl library HarfBuzz::Shaper to provide > HarfBuzz-based complex script support for PDF::Builder (PDF creation > library). LTR Latin script (English) and CJK script (Chinese) work as > expected when rendered vertically (TTB or BTT). What do you mean by top-to-bottom? Are the tops of letters then uppermost or rightmost? In some scripts, such as Mongolian and Phags-pa, changing the direction of the text like that changes the orientation of the characters, so the parts that were neighbours before remain neighbours. The difference between those two and CJK is that the first two are cursive. Richard. _______________________________________________ HarfBuzz mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/harfbuzz
