[luatex] Why obsolete the fontforge name space?

Yue Wang yuleopen at gmail.com
Tue Mar 24 15:13:19 CET 2009


> Except for the complete and total showstopper that it will not support
> opentype features nor aat features. Please, if you want to continue
> along this track, figure out how to some the enormous problem of missing
> opentype feature support first.

Complex text layout can only be done by combination of FreeType2 and
otf layout support library.
I do not know what the "complete OpenType feature support" means.
If it just means it can dump the low-level GPOS, GSUB, GDEF related tables.
libotf or harfbuzz has no problem doing them
(both libotf and harfbuzz are small libraries and only depends on
freetype2, so they are not system libraries).

for OTF support in libotf, see http://www.m17n.org/libotf/otf.h
[section 2-3, OTF_get_table() ]
for OTF support in HarfBuzz, see harfbuzz-gdef.h harfbuzz-gsub.h and

both library are very stable and mature and can be used for
production. (HarfBuzz is used in QT/Scribe and GTK+/Pango).

It is also said on the website that FreeType is preparing a new
library called "FT Layout"  which have "Full opentype Layout support".
but it is not released yet

Yue Wang

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