Shouldn't dlig automatically be enabled under the "hebrew" feature set? In
font-pre.mkiv, hebrew inherits from semitic-complete, which sets dlig=yes.

Still, if I explicitly add dlig, as in the following example, things
change, but they still aren't right:

```

\starttypescriptcollection[keteryg]

\starttypescript[serif][keteryg]

\definefontsynonym[Serif][file:../fonts/KeterYG/KeterYG-Medium.ttf][features=hebrew]
% all the necessary Hebrew features, including dlig

\stoptypescript


\starttypescript[keteryg]

\definetypeface[keteryg][rm][serif][keteryg][default]

\stoptypescript

\stoptypescriptcollection


%Set up the main font:

\setupbodyfont[keteryg]

%Set up right-to-left alignment:

\setupalign[r2l]

%Explicitly add dlig (in case it wasn't there already):

\definefontfeature[plus-dlig][dlig=yes]


\starttext

\addff{plus-dlig}

שֹׂבַע

עָשׂוֹר

קֹשֶׁט

שֹׁשַׁנִּים

עָשׂוֹר

מֹשֶׁה

שַׁלֹשׁ

\stoptext ``` In examples 1, 3, 4, and 6, the *holam *of the preceding
letter (which should have been stripped in the contextual substitution)
just seems to have been moved farther up. In fact, the output looks like it
would look if I turned off the reordercombining feature. (And indeed, if I
manually reorder the glyphs to the Hebrew Layout Intelligence order, then
the results look like they did when I just used the "hebrew" feature.)


I may have forgotten to attach the font file I was using for this test. If
that is the case, it is available at https://github.com/jjmccollum/Keter-YG.


Joey

On Tue, Aug 17, 2021 at 5:19 AM Hans Hagen <j.hagen@xs4all.nl> wrote:

> On 8/17/2021 2:07 AM, Joey McCollum wrote:
>
> > Sorry to bring this up after over a year, but I just noticed something
> > that doesn't seem right. I implemented some contextual substitutions in
> > my own fork of the Keter YG Hebrew font (.ttf file attached) under the
> > "dlig" feature that should do the following two things:
> but you don't enable dlig
>
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>                Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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>