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feat(fonts): add Vietnamese glyph coverage to the built-in UI font (#2280)

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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Hoang Manh Linh
2026-06-11 15:11:50 +03:00
committed by GitHub
co-authored by Claude Opus 4.8
parent 68138fffdb
commit 1f83087aa5
7 changed files with 1823 additions and 626 deletions
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lib/EpdFont/scripts/convert-builtin-fonts.sh
+6 -1
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@@ -36,8 +36,13 @@ for size in ${UI_FONT_SIZES[@]}; do
font_name="ubuntu_${size}_$(echo $style | tr '[:upper:]' '[:lower:]')"
font_path="../builtinFonts/source/Ubuntu/Ubuntu-${style}.ttf"
hebrew_path="../builtinFonts/source/NotoSansHebrew/NotoSansHebrew-${style}.ttf"
# Ubuntu lacks the Latin Extended Additional block (U+1EA0-U+1EF9) used for
# Vietnamese tone marks. Append a Vietnamese-only Ubuntu cut so those glyphs
# are filled from it while every glyph Ubuntu already has stays unchanged
# (fontstack is ordered by descending priority).
viet_path="../builtinFonts/source/Ubuntu/Ubuntu-Vietnamese-${style}.ttf"
output_path="../builtinFonts/${font_name}.h"
python fontconvert.py $font_name $size $font_path $hebrew_path \
python fontconvert.py $font_name $size $font_path $hebrew_path $viet_path \
--additional-intervals 0x05D0,0x05EA > $output_path
echo "Generated $output_path"
done