Hi Behdad, The fallback is only needed for the special case of using http://en.wikipedia.org/wiki/Niqqud with fonts that lack GPOS and GSUB tables. Unfortunately I don't think that you can ignore these cases for two reasons:
- There are still lots of commercial fonts around that lack these tables, and I see no reason why stop supporting these. - In the leading free Hebrew font package, Culmus, there are several fonts that lack these tables. I once started working on fixing Culmus by translating the heuristics that I wrote for Pango into GSUB and GPOS logics (see http://imagic.weizmann.ac.il/~dov/Hebrew/AutoNikud/ ) but I never finished that project. I should finish this... I'll be happy to help with the implementing it in Harfbuzz. Just give me instructions of what exactly you want me to do. :-) Regards, Dov On Thu, Nov 18, 2010 at 22:56, Behdad Esfahbod <[email protected]> wrote: > Hi Dov, > > As I'm developing HarfBuzz to replace the shapers in Pango I'm planning on > removing the Hebrew fallback shaping functionality that is in Pango. Can > you > confirm that the fallback shaping functionality is obsolete and not needed > with Hebrew fonts in wide circulation these days? > > If it *is* needed still, can you offer any help? I have a plan for > implementing such fallback shapers but appreciate a helping hand. > > Cheers, > behdad >
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