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Sextants: fix arithmetic mistake that broke 🬓, 🬦, 🬧

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The scheme used in draw_sextant works well enough, but the
feed was broken. 21 and 42 need to be skipped, not 20 and
40. Without this change, the following glyphs are broken:

U+1FB13 BLOCK SEXTANT-35 🬓 renders as LEFT HALF
U+1FB26 BLOCK SEXTANT-46 🬦 renders as SEXTANT-146
U+1FB27 BLOCK SEXTANT-146 🬧 renders as RIGHT HALF

With this change, the entirety of the sextant block works
correctly. Found debugging the Notcurses sextant blitter:

https://github.com/dankamongmen/notcurses/issues/1112
This commit is contained in:
nick black
2020-11-14 23:30:25 -05:00
parent ef596f6a8b
commit 63e32a94c0
1 changed files with 1 additions and 1 deletions
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2
kitty/fonts/box_drawing.py
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@@ -955,7 +955,7 @@ for i in range(256):
c = 0x1fb00 c = 0x1fb00
for i in range(1, 63): for i in range(1, 63):
if i in (20, 40): if i in (21, 42):
continue continue
box_chars[chr(c)] = [p(sextant, which=i)] box_chars[chr(c)] = [p(sextant, which=i)]
c += 1 c += 1