[NTG-context] 'kern': TrueType table and GPOS lookup feature

Hans Hagen pragma at wxs.nl
Fri Nov 30 16:41:24 CET 2012

On 11/30/2012 3:13 PM, Khaled Hosny wrote:
> On Fri, Nov 30, 2012 at 10:58:25AM +0100, Steve White wrote:
>> There was a suggestion that Latin kerns should be activated by
>> {script,lang}={dflt,dflt}.  Let me ask, should Devanagari kerns also be
>> activated by {dflt, dflt}?  If not, why?
> My own policy is, unless a feature must be restricted to a specific
> script/language (e.g. a locale-specific feature), all features should be
> assigned to *all* scripts in the font, including DFLT/dflt, because
> there is technical reason for doing otherwise and it would help
> applications not doing automatic script/language itemisation (both
> OpenType-enabled TeX engines, for example).

That makes much sense (unless a font has hundreds of different lookups 
for multiple features which could slow down basic processing).


                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl

More information about the ntg-context mailing list