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patch 9.0.2022: getmousepos() returns wrong index for TAB char

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Problem:  When clicking in the middle of a TAB, getmousepos() returns
          the column of the next char instead of the TAB.
Solution: Break out of the loop when the vcol to find is inside current
          char. Fix invalid memory access when calling virtcol2col() on
          an empty line.

closes: #13321

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
This commit is contained in:
zeertzjq
2023-10-14 11:32:28 +02:00
committed by Christian Brabandt
parent cd6ee69358
commit b583eda703
6 changed files with 62 additions and 7 deletions
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5
src/testdir/test_cursor_func.vim
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@@ -573,6 +573,11 @@ func Test_virtcol2col()
call assert_equal(8, virtcol2col(0, 1, 7))
call assert_equal(8, virtcol2col(0, 1, 8))
" These used to cause invalid memory access
call setline(1, '')
call assert_equal(0, virtcol2col(0, 1, 1))
call assert_equal(0, virtcol2col(0, 1, 2))
let w = winwidth(0)
call setline(2, repeat('a', w + 2))
let win_nosbr = win_getid()