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fix(winblend): treat braille blank (\u2800) as whitespace #32741

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Problem:
'winblend' does not display text behind blank unicode characters other than 0x20 ascii space.

Solution:
In ui_compositor.c -> compose_line() check for either 0x20 or 0x80A0E2 (utf8 \u2800).
This commit is contained in:
Skoh
2025-04-23 14:27:21 +02:00
committed by GitHub
parent d4f2b9050d
commit bc814cfb2c
2 changed files with 45 additions and 3 deletions
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42
test/functional/ui/float_spec.lua
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@@ -7947,7 +7947,8 @@ describe('float window', function()
qui officia deserunt mollit anim id est
laborum.]])
local buf = api.nvim_create_buf(false,false)
api.nvim_buf_set_lines(buf, 0, -1, true, {"test", "", "popup text"})
local test_data = {"test", "", "popup text"}
api.nvim_buf_set_lines(buf, 0, -1, true, test_data)
local win = api.nvim_open_win(buf, false, {relative='editor', width=15, height=3, row=2, col=5})
if multigrid then
screen:expect{grid=[[
@@ -8020,6 +8021,45 @@ describe('float window', function()
]])
end
-- Test for \u2800 (braille blank unicode character)
local braille_blank = "\226\160\128"
api.nvim_buf_set_lines(buf, 0, -1, true, {"test" .. braille_blank, "", "popup"..braille_blank.." text"})
if multigrid then
screen:expect{grid=[[
## grid 1
[2:--------------------------------------------------]|*8
[3:--------------------------------------------------]|
## grid 2
Ut enim ad minim veniam, quis nostrud |
exercitation ullamco laboris nisi ut aliquip ex |
ea commodo consequat. Duis aute irure dolor in |
reprehenderit in voluptate velit esse cillum |
dolore eu fugiat nulla pariatur. Excepteur sint |
occaecat cupidatat non proident, sunt in culpa |
qui officia deserunt mollit anim id est |
laborum^. |
## grid 3
|
## grid 4
{9:test]] .. braille_blank .. [[ }|
{9: }|
{9:popup]] .. braille_blank .. [[ text }|
]], float_pos={[4] = {1001, "NW", 1, 2, 5, true, 50, 1, 2, 5}}, unchanged=true}
else
screen:expect([[
Ut enim ad minim veniam, quis nostrud |
exercitation ullamco laboris nisi ut aliquip ex |
ea co{2:test}{3:o consequat}. Duis aute irure dolor in |
repre{3:henderit in vol}uptate velit esse cillum |
dolor{2:popup}{3:fugi}{2:text}{3:ul}la pariatur. Excepteur sint |
occaecat cupidatat non proident, sunt in culpa |
qui officia deserunt mollit anim id est |
laborum^. |
|
]])
end
api.nvim_buf_set_lines(buf, 0, -1, true, test_data)
-- Check that 'winblend' works with NormalNC highlight
api.nvim_set_option_value('winhighlight', 'NormalNC:Visual', {win = win})
if multigrid then