[Dev-luatex] It seems that harfbuzz people care luatex and xetex a lot...

Khaled Hosny khaledhosny at eglug.org
Thu Sep 17 18:58:08 CEST 2009


On Thu, Sep 17, 2009 at 12:17:44PM -0400, Yue Wang wrote:
> On Wed, Sep 16, 2009 at 12:11 PM, Hans Hagen <pragma at wxs.nl> wrote:
> > Yue Wang wrote:
> >>
> >> QUOTE:
> > so if you wan tto use those libraries use xetex instead then (no gain in
> > using luatex); the objective of the luatex project is to have a regular
> > opened up tex engine with all under user/macro package control
> 
> Harfbuzz is not a high level language layout engine like ICU that is
> used in xetex.
> It is just a OTF loading library (it's the successor of freetype1 otf
> loading code).
> And it will be the opensource opentype rendering standard in the future.

HarfBuzz does much more than loading OTF fonts; it is a complete
OpenType layout engine, you pass strings to it and get glyph indices
(with X and Y positions) in return, which is nowhere near what the
current luatex font loading library does.


-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer
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