Font Forum

Hi, I'm honestly not sure if this is a bug or not because I'm aware that the Font Creator Preview window does not necessarily give a full 100% representation of absolutely all features. I'm working with a Devanagari designed for the Universal Shaping Engine's Indic implementation. One of the lookups in one of my features is just not displaying in the Preview window as it is supposed to - the programmed GSUB substitutions are not occurring. These same substitutions work just fine in applications eg Word. They also work fine in FontLab and in DTL OT Master. But for some reason not in Font Creator. The feature is a fairly basic one - Below Base Substitutions (blws). The substitutions are quite "legal" and the feature syntax checks out 100% in Font Creator. Any ideas? Regards, Kevin.

Maybe the feature is not connected with the correct script. Can you send us the project file along with a sample text to test?

Thanks for your offer of assistance. As the project is commercial in nature and still in development I need to request a means of sending the file privately. Please let me know how I can send an attachment privately to you. Regards, Kevin.

You can Submit a Ticket

Done! Thanks. regards, Kevin,

I'm not sure but I suspect FontCreator was a bit too strict as it didn't allow ligature combinations with Simple and Mark glyphs. We'll remove that check with the next upcoming release.

Such a restriction ie blocking Simple to Mark ligatures would certainly explain why this strange issue is occurring. Using Lookup Type 4 for Simple to Mark and Mark to Mark ligatures is definitely part of the standard methodology for Devanagari script - see Microsoft's doc "Developing OpenType Fonts for Devanagari Scripts". Looking forward to the fix. Many Thanks. Regards, Kevin.

This issues has been fixed.