On Thu, Sep 17, 2009 at 12:17:44PM -0400, Yue Wang wrote: > On Wed, Sep 16, 2009 at 12:11 PM, Hans Hagen <[email protected]> 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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