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fontmake: Compiling UFO failed #5195

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samiel60 opened this issue Feb 5, 2023 · 1 comment
Open

fontmake: Compiling UFO failed #5195

samiel60 opened this issue Feb 5, 2023 · 1 comment

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@samiel60
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samiel60 commented Feb 5, 2023 •
edited

I'm using last AppImage (FontForge-2023-01-18-4f4907d-x86_64.AppImage) on Debian Testing.
I created a font in UFO3 format and then converted it with FontMake, but I get an error message:

samiel@debian:~$ fontmake -u ContemporaryGaramond-Italic.ufo/
INFO:fontmake.font_project:Building OTF for Contemporary Garamond-Italic
INFO:ufo2ft:Pre-processing glyphs
INFO:ufo2ft.filters:Running DecomposeComponentsFilter on ContemporaryGaramond-Italic
INFO:ufo2ft.filters:Running RemoveOverlapsFilter on ContemporaryGaramond-Italic
INFO:ufo2ft:Building OpenType tables
fontmake: Error: In 'ContemporaryGaramond-Italic.ufo': Compiling UFO failed: ContemporaryGaramond-Italic.ufo/features.fea:1135:2: Script statements are not allowed within "feature aalt"

In fact, in the features.fea file I find:

feature aalt {

  DFLT scripts;
      language dflt ;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;

  greek script;
      language dflt ;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;

  script latn;
      language dflt ;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;
      language AZE exclude_dflt;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;
      CRT language exclude_dflt;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;
      language FRA exclude_dflt;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;
      language ITA exclude_dflt;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;
      MOL language exclude_dflt;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;
      ROM language exclude_dflt;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;
      TRK language exclude_dflt;
       lookup aaltAccessAllAlternateslookup0;
       lookup aaltAccessAllAlternateslookup1;
} alt;

But the entry seems incorrect based on the Adobe specification (https://adobe-type-tools.github.io/afdko/OpenTypeFeatureFileSpecification.html#8.a), which reads: «The following are not allowed in the aalt feature definition: script, language, lookupflag, and subtable statements; named lookup blocks and lookup reference statements. The aalt lookups will be created with LookupFlag 0.»
Am I doing something wrong, or is the export from FF in UFO3 faulty?
Thank you
m
@samiel60
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samiel60 commented Feb 5, 2023 •
edited

Solution: manually edit the features.fea file by deleting all lines except
`feature aalt {

  lookup aaltAccessAllAlternateslookup0;

  lookup aaltAccessAllAlternateslookup1;

} aalt;`

But maybe the behavior of FontForge is not correct here, in creating the features file (or the lookup),
for it doesn't seem to be Adobe compliant.

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@samiel60