diff options
author | Haibo Huang <hhb@google.com> | 2021-01-25 19:23:39 -0800 |
---|---|---|
committer | Haibo Huang <hhb@google.com> | 2021-01-26 12:43:36 -0800 |
commit | f8d82f7a26154921102824802b7c16b9ac722f85 (patch) | |
tree | 7e436bb43355218e783d501f0bd394bb9a19bc24 /Lib/fontTools/varLib/featureVars.py | |
parent | e7b287f76cb1898590bcccd533663f6e5830b24b (diff) | |
download | fonttools-f8d82f7a26154921102824802b7c16b9ac722f85.tar.gz |
Upgrade fonttools to 4.19.0
Test: make
Change-Id: I94aa7732ede5deb42a281dd99302c2e3140af4a4
Diffstat (limited to 'Lib/fontTools/varLib/featureVars.py')
-rw-r--r-- | Lib/fontTools/varLib/featureVars.py | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Lib/fontTools/varLib/featureVars.py b/Lib/fontTools/varLib/featureVars.py index 76e8cc4a..45f3d839 100644 --- a/Lib/fontTools/varLib/featureVars.py +++ b/Lib/fontTools/varLib/featureVars.py @@ -10,7 +10,7 @@ from fontTools.ttLib.tables import otTables as ot from fontTools.otlLib.builder import buildLookup, buildSingleSubstSubtable from collections import OrderedDict -from .errors import VarLibValidationError +from .errors import VarLibError, VarLibValidationError def addFeatureVariations(font, conditionalSubstitutions, featureTag='rvrn'): @@ -298,6 +298,11 @@ def addFeatureVariationsRaw(font, conditionalSubstitutions, featureTag='rvrn'): varFeatureIndex = gsub.FeatureList.FeatureRecord.index(varFeature) for scriptRecord in gsub.ScriptList.ScriptRecord: + if scriptRecord.Script.DefaultLangSys is None: + raise VarLibError( + "Feature variations require that the script " + f"'{scriptRecord.ScriptTag}' defines a default language system." + ) langSystems = [lsr.LangSys for lsr in scriptRecord.Script.LangSysRecord] for langSys in [scriptRecord.Script.DefaultLangSys] + langSystems: langSys.FeatureIndex.append(varFeatureIndex) |