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GSUB lookup don't work when I generate my font! #3390

AlirezaAlipour opened this Issue Dec 26, 2018 · 3 comments


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AlirezaAlipour commented Dec 26, 2018

I need single substitution in order to designing an cursive English script, every thing work when I test my font in the Metric windows, but when I generate my font, single substitution feature don't work in word processing or in web browser using CSS font-face.

In order to make this problem clear I designed a font that I attached to this issue. It has only four glyph and base on the init and the fina feature that I specified in GSUB it must substitute initial zero(0) and final one(1) glyph with a glyph that is consist of reference of same glyph addition to a line under that glyph. Unfortunately mentioned feature don't work in the generated font.

My environment is as follow:

  • Fontforge Version: 11:21 UTC 24-Se-2017

  • OS: Ubuntu 18.10, I also I had same problem in Ubuntu 16.04

  • Word Processing Application: LibreOffice Writer


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frank-trampe commented Dec 26, 2018

@AlirezaAlipour, this isn't quite specific enough to be handled as an issue. We would need to know specific deficiencies in the generated TrueType file. Please post to the FontForge user list with your input (SFD) file and output (TTF) file and ask for help finding the specific reason that Word isn't rendering the way you expect.


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AlirezaAlipour commented Dec 27, 2018

Thank @frank-trampe very much for your assist :)

I wish you a happy new year :)


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AlirezaAlipour commented Jan 2, 2019

I'm waiting for a solution :)

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