Files
kitty-mirror/kitty_tests/fonts.py
Kovid Goyal 2907999131 Use the same algorithm for rendering box cells and font based cells
Should make things easier to change in tandem in future.
2025-02-19 17:05:43 +05:30

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#!/usr/bin/env python
# License: GPL v3 Copyright: 2017, Kovid Goyal <kovid at kovidgoyal.net>
import array
import os
import tempfile
import unittest
from collections.abc import Iterable
from functools import lru_cache, partial
from itertools import repeat
from math import ceil
from kitty.constants import is_macos, read_kitty_resource
from kitty.fast_data_types import (
DECAWM,
ParsedFontFeature,
get_fallback_font,
set_allow_use_of_box_fonts,
sprite_idx_to_pos,
sprite_map_set_layout,
sprite_map_set_limits,
test_render_line,
test_sprite_position_increment,
wcwidth,
)
from kitty.fonts import family_name_to_key
from kitty.fonts.common import FontSpec, all_fonts_map, face_from_descriptor, get_font_files, get_named_style, spec_for_face
from kitty.fonts.render import coalesce_symbol_maps, create_face, render_string, setup_for_testing, shape_string
from kitty.options.types import Options
from . import BaseTest, draw_multicell
def parse_font_spec(spec):
return FontSpec.from_setting(spec)
@lru_cache(maxsize=64)
def testing_font_data(name):
return read_kitty_resource(name, __name__.rpartition('.')[0])
class Selection(BaseTest):
def test_font_selection(self):
self.set_options({'font_features': {'LiberationMono': (ParsedFontFeature('-dlig'),)}})
opts = Options()
fonts_map = all_fonts_map(True)
names = set(fonts_map['family_map']) | set(fonts_map['variable_map'])
del fonts_map
def s(family: str, *expected: str, alternate=None) -> None:
opts.font_family = parse_font_spec(family)
ff = get_font_files(opts)
actual = tuple(face_from_descriptor(ff[x]).postscript_name() for x in ('medium', 'bold', 'italic', 'bi')) # type: ignore
del ff
for x in actual:
if '/' in x: # Old FreeType failed to generate postscript name for a variable font probably
return
with self.subTest(spec=family):
try:
self.ae(expected, actual)
except AssertionError:
if alternate:
self.ae(alternate, actual)
else:
raise
def both(family: str, *expected: str, alternate=None) -> None:
for family in (family, f'family="{family}"'):
s(family, *expected, alternate=alternate)
def has(family, allow_missing_in_ci=False):
ans = family_name_to_key(family) in names
if self.is_ci and not allow_missing_in_ci and not ans:
raise AssertionError(f'The family: {family} is not available')
return ans
def t(family, psprefix, bold='Bold', italic='Italic', bi='', reg='Regular', allow_missing_in_ci=False, alternate=None):
if has(family, allow_missing_in_ci=allow_missing_in_ci):
bi = bi or bold + italic
if reg:
reg = '-' + reg
both(family, f'{psprefix}{reg}', f'{psprefix}-{bold}', f'{psprefix}-{italic}', f'{psprefix}-{bi}', alternate=alternate)
t('Source Code Pro', 'SourceCodePro', 'Semibold', 'It')
t('sourcecodeVf', 'SourceCodeVF', 'Semibold')
# The Arch ttf-fira-code package excludes the variable fonts for some reason
t('fira code', 'FiraCodeRoman', 'SemiBold', 'Regular', 'SemiBold', alternate=(
'FiraCode-Regular', 'FiraCode-SemiBold', 'FiraCode-Retina', 'FiraCode-SemiBold'))
t('hack', 'Hack')
# some ubuntu systems (such as the build VM) have only the regular and
# bold faces of DejaVu Sans Mono installed.
# t('DejaVu Sans Mono', 'DejaVuSansMono', reg='', italic='Oblique')
t('ubuntu mono', 'UbuntuMono')
t('liberation mono', 'LiberationMono', reg='')
t('ibm plex mono', 'IBMPlexMono', 'SmBld', reg='')
t('iosevka fixed', 'Iosevka-Fixed', 'Semibold', reg='', bi='Semibold-Italic', allow_missing_in_ci=True)
t('iosevka term', 'Iosevka-Term', 'Semibold', reg='', bi='Semibold-Italic', allow_missing_in_ci=True)
t('fantasque sans mono', 'FantasqueSansMono')
t('jetbrains mono', 'JetBrainsMono', 'SemiBold')
t('consolas', 'Consolas', reg='', allow_missing_in_ci=True)
if has('cascadia code'):
if is_macos:
both('cascadia code', 'CascadiaCode-Regular', 'CascadiaCode-Regular_SemiBold', 'CascadiaCode-Italic', 'CascadiaCode-Italic_SemiBold-Italic')
else:
both('cascadia code', 'CascadiaCodeRoman-Regular', 'CascadiaCodeRoman-SemiBold', 'CascadiaCode-Italic', 'CascadiaCode-SemiBoldItalic')
if has('cascadia mono'):
if is_macos:
both('cascadia mono', 'CascadiaMono-Regular', 'CascadiaMono-Regular_SemiBold', 'CascadiaMono-Italic', 'CascadiaMono-Italic_SemiBold-Italic')
else:
both('cascadia mono', 'CascadiaMonoRoman-Regular', 'CascadiaMonoRoman-SemiBold', 'CascadiaMono-Italic', 'CascadiaMono-SemiBoldItalic')
if has('operator mono', allow_missing_in_ci=True):
both('operator mono', 'OperatorMono-Medium', 'OperatorMono-Bold', 'OperatorMono-MediumItalic', 'OperatorMono-BoldItalic')
# Test variable font selection
if has('SourceCodeVF'):
opts = Options()
opts.font_family = parse_font_spec('family="SourceCodeVF" variable_name="SourceCodeUpright" style="Bold"')
ff = get_font_files(opts)
face = face_from_descriptor(ff['medium'])
self.ae(get_named_style(face)['name'], 'Bold')
face = face_from_descriptor(ff['italic'])
self.ae(get_named_style(face)['name'], 'Bold Italic')
face = face_from_descriptor(ff['bold'])
self.ae(get_named_style(face)['name'], 'Black')
face = face_from_descriptor(ff['bi'])
self.ae(get_named_style(face)['name'], 'Black Italic')
opts.font_family = parse_font_spec('family=SourceCodeVF variable_name=SourceCodeUpright wght=470')
opts.italic_font = parse_font_spec('family=SourceCodeVF variable_name=SourceCodeItalic style=Black')
ff = get_font_files(opts)
self.assertFalse(get_named_style(ff['medium']))
self.ae(get_named_style(ff['italic'])['name'], 'Black Italic')
if has('cascadia code'):
opts = Options()
opts.font_family = parse_font_spec('family="cascadia code"')
opts.italic_font = parse_font_spec('family="cascadia code" variable_name= style="Light Italic"')
ff = get_font_files(opts)
def t(x, **kw):
if 'spec' in kw:
fs = FontSpec.from_setting('family="Cascadia Code" ' + kw['spec'])._replace(created_from_string='')
else:
kw['family'] = 'Cascadia Code'
fs = FontSpec(**kw)
face = face_from_descriptor(ff[x])
self.ae(fs.as_setting, spec_for_face('Cascadia Code', face).as_setting)
t('medium', variable_name='CascadiaCodeRoman', style='Regular')
t('italic', variable_name='', style='Light Italic')
opts = Options()
opts.font_family = parse_font_spec('family="cascadia code" variable_name=CascadiaCodeRoman wght=455')
opts.italic_font = parse_font_spec('family="cascadia code" variable_name= wght=405')
opts.bold_font = parse_font_spec('family="cascadia code" variable_name=CascadiaCodeRoman wght=603')
ff = get_font_files(opts)
t('medium', spec='variable_name=CascadiaCodeRoman wght=455')
t('italic', spec='variable_name= wght=405')
t('bold', spec='variable_name=CascadiaCodeRoman wght=603')
t('bi', spec='variable_name= wght=603')
# Test font features
if has('liberation mono'):
opts = Options()
opts.font_family = parse_font_spec('family="liberation mono"')
ff = get_font_files(opts)
self.ae(face_from_descriptor(ff['medium']).applied_features(), {'dlig': '-dlig'})
self.ae(face_from_descriptor(ff['bold']).applied_features(), {})
opts.font_family = parse_font_spec('family="liberation mono" features="dlig test=3"')
ff = get_font_files(opts)
self.ae(face_from_descriptor(ff['medium']).applied_features(), {'dlig': 'dlig', 'test': 'test=3'})
self.ae(face_from_descriptor(ff['bold']).applied_features(), {'dlig': 'dlig', 'test': 'test=3'})
def block_helpers(s, sprites, cell_width, cell_height):
block_size = cell_width * cell_height * 4
def full_block():
return b'\xff' * block_size
def empty_block():
return b'\0' * block_size
def half_block(first=b'\xff', second=b'\0', swap=False):
frac = 0.5
height = ceil(frac * cell_height)
rest = cell_height - height
if swap:
height, rest = rest, height
first, second = second, first
return (first * (height * cell_width * 4)) + (second * rest * cell_width * 4)
def quarter_block():
frac = 0.5
height = ceil(frac * cell_height)
width = ceil(frac * cell_width)
ans = array.array('I', b'\0' * block_size)
for y in range(height):
pos = cell_width * y
for x in range(width):
ans[pos + x] = 0xffffffff
return ans.tobytes()
def upper_half_block():
return half_block()
def lower_half_block():
return half_block(swap=True)
def block_as_str(a):
pixels = array.array('I', a)
def row(y):
pos = y * cell_width
return ' '.join(f'{int(pixels[pos + x] != 0)}' for x in range(cell_width))
return '\n'.join(row(y) for y in range(cell_height))
def assert_blocks(a, b, msg=''):
if a != b:
msg = msg or 'block not equal'
if len(a) != len(b):
assert_blocks.__msg = msg + f' block lengths not equal: {len(a)/4} != {len(b)/4}'
else:
assert_blocks.__msg = msg + '\n' + block_as_str(a) + '\n\n' + block_as_str(b)
del a, b
raise AssertionError(assert_blocks.__msg)
def multiline_render(text, scale=1, width=1, **kw):
s.reset()
draw_multicell(s, text, scale=scale, width=width, **kw)
ans = []
for y in range(scale):
line = s.line(y)
test_render_line(line)
for x in range(width * scale):
ans.append(sprites[sprite_idx_to_pos(line.sprite_at(x), setup_for_testing.xnum, setup_for_testing.ynum)])
return ans
def block_test(*expected, **kw):
mr = multiline_render(kw.pop('text', ''), **kw)
try:
z = zip(expected, mr, strict=True)
except TypeError:
z = zip(expected, mr)
for i, (expected, actual) in enumerate(z):
assert_blocks(expected(), actual, f'Block {i} is not equal')
return full_block, empty_block, upper_half_block, lower_half_block, quarter_block, block_as_str, block_test
class FontBaseTest(BaseTest):
font_size = 16.0
dpi = 72.
font_name = 'FiraCode-Medium.otf'
def path_for_font(self, name):
if name not in self.font_path_cache:
with open(os.path.join(self.tdir, name), 'wb') as f:
self.font_path_cache[name] = f.name
f.write(testing_font_data(name))
return self.font_path_cache[name]
def setUp(self):
super().setUp()
self.font_path_cache = {}
self.tdir = tempfile.mkdtemp()
self.addCleanup(self.rmtree_ignoring_errors, self.tdir)
path = self.path_for_font(self.font_name) if self.font_name else ''
tc = setup_for_testing(size=self.font_size, dpi=self.dpi, main_face_path=path)
self.sprites, self.cell_width, self.cell_height = tc.__enter__()
self.addCleanup(tc.__exit__)
self.assertEqual([k[0] for k in self.sprites], list(range(11)))
def tearDown(self):
del self.sprites, self.cell_width, self.cell_height
self.font_path_cache = {}
super().tearDown()
class Rendering(FontBaseTest):
def test_sprite_map(self):
sprite_map_set_limits(10, 3)
sprite_map_set_layout(5, 4) # 4 because of underline_exclusion row
self.ae(test_sprite_position_increment(), (0, 0, 0))
self.ae(test_sprite_position_increment(), (1, 0, 0))
self.ae(test_sprite_position_increment(), (0, 1, 0))
self.ae(test_sprite_position_increment(), (1, 1, 0))
self.ae(test_sprite_position_increment(), (0, 0, 1))
self.ae(test_sprite_position_increment(), (1, 0, 1))
self.ae(test_sprite_position_increment(), (0, 1, 1))
self.ae(test_sprite_position_increment(), (1, 1, 1))
self.ae(test_sprite_position_increment(), (0, 0, 2))
self.ae(test_sprite_position_increment(), (1, 0, 2))
def test_box_drawing(self):
s = self.create_screen(cols=len(box_chars) + 1, lines=1, scrollback=0)
prerendered = len(self.sprites)
s.draw(''.join(box_chars))
line = s.line(0)
test_render_line(line)
self.assertEqual(len(self.sprites) - prerendered, len(box_chars))
def test_scaled_box_drawing(self):
self.scaled_drawing_test()
def test_scaled_font_drawing(self):
set_allow_use_of_box_fonts(False)
try:
self.scaled_drawing_test()
finally:
set_allow_use_of_box_fonts(True)
def scaled_drawing_test(self):
s = self.create_screen(cols=8, lines=8, scrollback=0)
full_block, empty_block, upper_half_block, lower_half_block, quarter_block, block_as_str, block_test = block_helpers(
s, self.sprites, self.cell_width, self.cell_height)
block_test(full_block)
block_test(full_block, full_block, full_block, full_block, scale=2)
block_test(full_block, empty_block, empty_block, empty_block, scale=2, subscale_n=1, subscale_d=2)
block_test(empty_block, full_block, empty_block, empty_block, scale=2, subscale_n=1, subscale_d=2, horizontal_align=1)
block_test(full_block, full_block, empty_block, empty_block, scale=2, subscale_n=1, subscale_d=2, text='██')
block_test(empty_block, empty_block, full_block, empty_block, scale=2, subscale_n=1, subscale_d=2, vertical_align=1)
block_test(quarter_block, scale=1, subscale_n=1, subscale_d=2)
block_test(upper_half_block, scale=1, subscale_n=1, subscale_d=2, text='██')
block_test(lower_half_block, scale=1, subscale_n=1, subscale_d=2, text='██', vertical_align=1)
def test_font_rendering(self):
render_string('ab\u0347\u0305你好|\U0001F601|\U0001F64f|\U0001F63a|')
text = 'He\u0347\u0305llo\u0341, w\u0302or\u0306l\u0354d!'
# macOS has no fonts capable of rendering combining chars
if is_macos:
text = text.encode('ascii', 'ignore').decode('ascii')
cells = render_string(text)[-1]
self.ae(len(cells), len(text.encode('ascii', 'ignore')))
text = '你好,世界'
sz = sum(map(lambda x: wcwidth(ord(x)), text))
cells = render_string(text)[-1]
self.ae(len(cells), sz)
@unittest.skipIf(is_macos, 'COLRv1 is only supported on Linux')
def test_rendering_colrv1(self):
f = create_face(self.path_for_font('twemoji_smiley-cff2_colr_1.otf'))
f.set_size(64, 96, 96)
for char in '😁😇😈':
_, w, h = f.render_codepoint(ord(char))
self.assertGreater(w, 64)
self.assertGreater(h, 64)
def test_shaping(self):
def ss(text, font=None):
path = self.path_for_font(font) if font else None
return shape_string(text, path=path)
def groups(text, font=None):
return [x[:2] for x in ss(text, font)]
for font in ('FiraCode-Medium.otf', 'CascadiaCode-Regular.otf', 'iosevka-regular.ttf'):
g = partial(groups, font=font)
self.ae(g('abcd'), [(1, 1) for i in range(4)])
self.ae(g('A===B!=C'), [(1, 1), (3, 3), (1, 1), (2, 2), (1, 1)])
self.ae(g('A=>>B!=C'), [(1, 1), (3, 3), (1, 1), (2, 2), (1, 1)])
if 'iosevka' in font:
self.ae(g('--->'), [(4, 4)])
self.ae(g('-' * 12 + '>'), [(13, 13)])
self.ae(g('<~~~'), [(4, 4)])
self.ae(g('a<~~~b'), [(1, 1), (4, 4), (1, 1)])
else:
self.ae(g('----'), [(4, 4)])
self.ae(g('F--a--'), [(1, 1), (2, 2), (1, 1), (2, 2)])
self.ae(g('===--<>=='), [(3, 3), (2, 2), (2, 2), (2, 2)])
self.ae(g('==!=<>==<><><>'), [(4, 4), (2, 2), (2, 2), (2, 2), (2, 2), (2, 2)])
self.ae(g('-' * 18), [(18, 18)])
self.ae(g('a>\u2060<b'), [(1, 1), (1, 2), (1, 1), (1, 1)])
colon_glyph = ss('9:30', font='FiraCode-Medium.otf')[1][2]
self.assertNotEqual(colon_glyph, ss(':', font='FiraCode-Medium.otf')[0][2])
self.ae(colon_glyph, 1031)
self.ae(groups('9:30', font='FiraCode-Medium.otf'), [(1, 1), (1, 1), (1, 1), (1, 1)])
self.ae(groups('|\U0001F601|\U0001F64f|\U0001F63a|'), [(1, 1), (2, 1), (1, 1), (2, 1), (1, 1), (2, 1), (1, 1)])
self.ae(groups('He\u0347\u0305llo\u0337,', font='LiberationMono-Regular.ttf'),
[(1, 1), (1, 3), (1, 1), (1, 1), (1, 2), (1, 1)])
self.ae(groups('i\u0332\u0308', font='LiberationMono-Regular.ttf'), [(1, 2)])
self.ae(groups('u\u0332 u\u0332\u0301', font='LiberationMono-Regular.ttf'), [(1, 2), (1, 1), (1, 2)])
def test_emoji_presentation(self):
s = self.create_screen()
s.draw('\u2716\u2716\ufe0f')
self.ae((s.cursor.x, s.cursor.y), (3, 0))
s.draw('\u2716\u2716')
self.ae((s.cursor.x, s.cursor.y), (5, 0))
s.draw('\ufe0f')
self.ae((s.cursor.x, s.cursor.y), (2, 1))
self.ae(str(s.line(0)), '\u2716\u2716\ufe0f\u2716')
self.ae(str(s.line(1)), '\u2716\ufe0f')
s.draw('\u2716' * 3)
self.ae((s.cursor.x, s.cursor.y), (5, 1))
self.ae(str(s.line(1)), '\u2716\ufe0f\u2716\u2716\u2716')
self.ae((s.cursor.x, s.cursor.y), (5, 1))
s.reset_mode(DECAWM)
s.draw('\ufe0f')
s.set_mode(DECAWM)
self.ae((s.cursor.x, s.cursor.y), (5, 1))
self.ae(str(s.line(1)), '\u2716\ufe0f\u2716\u2716\ufe0f')
s.cursor.y = s.lines - 1
s.draw('\u2716' * s.columns)
self.ae((s.cursor.x, s.cursor.y), (5, 4))
s.draw('\ufe0f')
self.ae((s.cursor.x, s.cursor.y), (2, 4))
self.ae(str(s.line(s.cursor.y)), '\u2716\ufe0f')
@unittest.skipUnless(is_macos, 'Only macOS has a Last Resort font')
def test_fallback_font_not_last_resort(self):
# Ensure that the LastResort font is not reported as a fallback font on
# macOS. See https://github.com/kovidgoyal/kitty/issues/799
with self.assertRaises(ValueError, msg='No fallback font found'):
get_fallback_font('\U0010FFFF', False, False)
def test_coalesce_symbol_maps(self):
q = {(2, 3): 'a', (4, 6): 'b', (5, 5): 'b', (7, 7): 'b', (9, 9): 'b', (1, 1): 'a'}
self.ae(coalesce_symbol_maps(q), {(1, 3): 'a', (4, 7): 'b', (9, 9): 'b'})
q = {(1, 4): 'a', (2, 3): 'b'}
self.ae(coalesce_symbol_maps(q), {(1, 1): 'a', (2, 3): 'b', (4, 4): 'a'})
q = {(2, 3): 'b', (1, 4): 'a'}
self.ae(coalesce_symbol_maps(q), {(1, 4): 'a'})
q = {(1, 4): 'a', (2, 5): 'b'}
self.ae(coalesce_symbol_maps(q), {(1, 1): 'a', (2, 5): 'b'})
q = {(2, 5): 'b', (1, 4): 'a'}
self.ae(coalesce_symbol_maps(q), {(1, 4): 'a', (5, 5): 'b'})
q = {(1, 4): 'a', (2, 5): 'a'}
self.ae(coalesce_symbol_maps(q), {(1, 5): 'a'})
q = {(1, 4): 'a', (4, 5): 'b'}
self.ae(coalesce_symbol_maps(q), {(1, 3): 'a', (4, 5): 'b'})
q = {(4, 5): 'b', (1, 4): 'a'}
self.ae(coalesce_symbol_maps(q), {(1, 4): 'a', (5, 5): 'b'})
q = {(0, 30): 'a', (10, 10): 'b', (11, 11): 'b', (2, 2): 'c', (1, 1): 'c'}
self.ae(coalesce_symbol_maps(q), {
(0, 0): 'a', (1, 2): 'c', (3, 9): 'a', (10, 11): 'b', (12, 30): 'a'})
def test_chars(chars: str = '', sz: int = 128) -> None:
# kitty +runpy "from kitty.fonts.box_drawing import test_chars; test_chars('XXX')"
from kitty.fast_data_types import concat_cells, render_box_char, set_send_sprite_to_gpu
from kitty.fonts.render import display_bitmap, setup_for_testing
if not chars:
import sys
chars = sys.argv[-1]
def as_ord(x: str) -> int:
if x.lower().startswith('u+'):
return int(x[2:], 16)
return ord(x)
if '...' in chars:
start, end = chars.partition('...')[::2]
chars = ''.join(map(chr, range(as_ord(start), as_ord(end)+1)))
with setup_for_testing('monospace', sz) as (_, width, height):
try:
for ch in chars:
nb = render_box_char(as_ord(ch), width, height)
rgb_data = concat_cells(width, height, False, (nb,))
display_bitmap(rgb_data, width, height)
print()
finally:
set_send_sprite_to_gpu(None)
def test_drawing(sz: int = 48, family: str = 'monospace', start: int = 0x2500, num_rows: int = 10, num_cols: int = 16) -> None:
from kitty.fast_data_types import concat_cells, render_box_char, set_send_sprite_to_gpu
from .render import display_bitmap, setup_for_testing
with setup_for_testing(family, sz) as (_, width, height):
space = bytearray(width * height)
def join_cells(cells: Iterable[bytes]) -> bytes:
cells = tuple(bytes(x) for x in cells)
return concat_cells(width, height, False, cells)
def render_chr(ch: str) -> bytearray:
if ch in box_chars:
return bytearray(render_box_char(ord(ch), width, height))
return space
pos = start
rows = []
space_row = join_cells(repeat(space, 32))
try:
for r in range(num_rows):
row = []
for i in range(num_cols):
row.append(render_chr(chr(pos)))
row.append(space)
pos += 1
rows.append(join_cells(row))
rows.append(space_row)
rgb_data = b''.join(rows)
width *= 32
height *= len(rows)
assert len(rgb_data) == width * height * 4, f'{len(rgb_data)} != {width * height * 4}'
display_bitmap(rgb_data, width, height)
finally:
set_send_sprite_to_gpu(None)
box_chars = { # {{{
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'',
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'',
'',
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'',
'',
'',
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'',
'',
'\ue0b0',
'\ue0b1',
'\ue0b2',
'\ue0b3',
'\ue0b4',
'\ue0b5',
'\ue0b6',
'\ue0b7',
'\ue0b8',
'\ue0b9',
'\ue0ba',
'\ue0bb',
'\ue0bc',
'\ue0bd',
'\ue0be',
'\ue0bf',
'\ue0d6',
'\ue0d7',
'\uee00',
'\uee01',
'\uee02',
'\uee03',
'\uee04',
'\uee05',
'\uee06',
'\uee07',
'\uee08',
'\uee09',
'\uee0a',
'\uee0b',
'\uf5d0',
'\uf5d1',
'\uf5d2',
'\uf5d3',
'\uf5d4',
'\uf5d5',
'\uf5d6',
'\uf5d7',
'\uf5d8',
'\uf5d9',
'\uf5da',
'\uf5db',
'\uf5dc',
'\uf5dd',
'\uf5de',
'\uf5df',
'\uf5e0',
'\uf5e1',
'\uf5e2',
'\uf5e3',
'\uf5e4',
'\uf5e5',
'\uf5e6',
'\uf5e7',
'\uf5e8',
'\uf5e9',
'\uf5ea',
'\uf5eb',
'\uf5ec',
'\uf5ed',
'\uf5ee',
'\uf5ef',
'\uf5f0',
'\uf5f1',
'\uf5f2',
'\uf5f3',
'\uf5f4',
'\uf5f5',
'\uf5f6',
'\uf5f7',
'\uf5f8',
'\uf5f9',
'\uf5fa',
'\uf5fb',
'\uf5fc',
'\uf5fd',
'\uf5fe',
'\uf5ff',
'\uf600',
'\uf601',
'\uf602',
'\uf603',
'\uf604',
'\uf605',
'\uf606',
'\uf607',
'\uf608',
'\uf609',
'\uf60a',
'\uf60b',
'\uf60c',
'\uf60d',
'🬀',
'🬁',
'🬂',
'🬃',
'🬄',
'🬅',
'🬆',
'🬇',
'🬈',
'🬉',
'🬊',
'🬋',
'🬌',
'🬍',
'🬎',
'🬏',
'🬐',
'🬑',
'🬒',
'🬓',
'🬔',
'🬕',
'🬖',
'🬗',
'🬘',
'🬙',
'🬚',
'🬛',
'🬜',
'🬝',
'🬞',
'🬟',
'🬠',
'🬡',
'🬢',
'🬣',
'🬤',
'🬥',
'🬦',
'🬧',
'🬨',
'🬩',
'🬪',
'🬫',
'🬬',
'🬭',
'🬮',
'🬯',
'🬰',
'🬱',
'🬲',
'🬳',
'🬴',
'🬵',
'🬶',
'🬷',
'🬸',
'🬹',
'🬺',
'🬻',
'🬼',
'🬽',
'🬾',
'🬿',
'🭀',
'🭁',
'🭂',
'🭃',
'🭄',
'🭅',
'🭆',
'🭇',
'🭈',
'🭉',
'🭊',
'🭋',
'🭌',
'🭍',
'🭎',
'🭏',
'🭐',
'🭑',
'🭒',
'🭓',
'🭔',
'🭕',
'🭖',
'🭗',
'🭘',
'🭙',
'🭚',
'🭛',
'🭜',
'🭝',
'🭞',
'🭟',
'🭠',
'🭡',
'🭢',
'🭣',
'🭤',
'🭥',
'🭦',
'🭧',
'🭨',
'🭩',
'🭪',
'🭫',
'🭬',
'🭭',
'🭮',
'🭯',
'🭰',
'🭱',
'🭲',
'🭳',
'🭴',
'🭵',
'🭶',
'🭷',
'🭸',
'🭹',
'🭺',
'🭻',
'🭼',
'🭽',
'🭾',
'🭿',
'🮀',
'🮁',
'🮂',
'🮃',
'🮄',
'🮅',
'🮆',
'🮇',
'🮈',
'🮉',
'🮊',
'🮋',
'🮌',
'🮍',
'🮎',
'🮏',
'🮐',
'🮑',
'🮒',
'\U0001fb93',
'🮔',
'🮕',
'🮖',
'🮗',
'🮘',
'🮙',
'🮚',
'🮛',
'🮜',
'🮝',
'🮞',
'🮟',
'🮠',
'🮡',
'🮢',
'🮣',
'🮤',
'🮥',
'🮦',
'🮧',
'🮨',
'🮩',
'🮪',
'🮫',
'🮬',
'🮭',
'🮮',
'\U0001fbe6', '\U0001fbe7',
} # }}}
for ch in range(0x1cd00, 0x1cde5+1): # octants
box_chars.add(chr(ch))