Re: Malayalam & SF_PROCESS_ZWJ

On Sun, 2007-06-17 at 02:22 +1000, Harshula wrote:
> Hi,
> I noticed that the SF_PROCESS_ZWJ flag has been removed from the
> Malayalam script flags in Pango as part of:
> My understanding from the indic mailing list was that it was
> now essential, for Malayalam (and of course Sinhala), for ZWJ to be
> passed along to the GSUB stage of the font lookup.
> Have the rules changed? What was the justification for the removal of
> the SF_PROCESS_ZWJ from Malayalam script flags?


Unfortunately there's not been much justification I'm afraid :(.  The
Indic shaper is by all means unmaintained.  So I just let all interested
parties discuss and come up with patches and when they seem to agree,
I'll commit.  I know that at some point we will need to revert much of
those changes...

Anyway, I'm probably going to stop doing that, it was wrong to start
with.  We (Pango, Qt, ICU, HarfBuzz) need someone with enough time and
knowledge to study the current Indic shaper AND follow MS and Unicode
happenings and maintaining/fixing the shaper.  So far I've not seen
anyone on the horizon.

> Thanks,

"Those who would give up Essential Liberty to purchase a little
 Temporary Safety, deserve neither Liberty nor Safety."
        -- Benjamin Franklin, 1759

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