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vim-patch:8.2.4660: cursorcolumn is sometimes not correct

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Problem:    Cursorcolumn is sometimes not correct.
Solution:   Recompute the cursor column when entering Insert mode and the
            cursor is on a character wider than a screen cell.
782c6744b4
This commit is contained in:
zeertzjq
2022-04-01 19:46:17 +08:00
parent 377e875211
commit 139828cc7e
3 changed files with 66 additions and 6 deletions
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40
test/functional/ui/highlight_spec.lua
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@@ -1306,14 +1306,48 @@ describe('CursorLine and CursorLineNr highlights', function()
end)
describe('CursorColumn highlight', function()
before_each(clear)
it('is updated if cursor is moved from timer', function()
local screen = Screen.new(50, 8)
local screen
before_each(function()
clear()
screen = Screen.new(50, 8)
screen:set_default_attr_ids({
[1] = {background = Screen.colors.Gray90}, -- CursorColumn
[2] = {bold = true, foreground = Screen.colors.Blue1}, -- NonText
[3] = {bold = true}, -- ModeMsg
})
screen:attach()
end)
it('is updated when pressing "i" on a TAB character', function()
exec([[
call setline(1, ['123456789', "a\tb"])
set cursorcolumn
call cursor(2, 2)
]])
screen:expect([[
1234567{1:8}9 |
a ^ b |
{2:~ }|
{2:~ }|
{2:~ }|
{2:~ }|
{2:~ }|
|
]])
feed('i')
screen:expect([[
1{1:2}3456789 |
a^ b |
{2:~ }|
{2:~ }|
{2:~ }|
{2:~ }|
{2:~ }|
{3:-- INSERT --} |
]])
end)
it('is updated if cursor is moved from timer', function()
exec([[
call setline(1, ['aaaaa', 'bbbbb', 'ccccc', 'ddddd'])
set cursorcolumn