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vim-patch:9.0.1717: virtcol2col returns last byte of a multi-byte char (#24729)

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Problem: virtcol2col returns last byte of a multi-byte char
Solution: Make it return the first byte for a multi-byte char

closes: vim/vim#12786
closes: vim/vim#12799

b209b86e66

Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
This commit is contained in:
zeertzjq
2023-08-16 06:28:52 +08:00
committed by GitHub
parent 10c5f35a8d
commit a245dd79a2
5 changed files with 34 additions and 1 deletions
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9
test/old/testdir/test_cursor_func.vim
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@@ -531,6 +531,15 @@ func Test_virtcol2col()
call assert_equal(-1, virtcol2col(0, -1, 1))
call assert_equal(-1, virtcol2col(0, 1, -1))
call assert_equal(5, virtcol2col(0, 1, 20))
" Multibyte character
call setline(1, ['a✅✅✅'])
call assert_equal(1, virtcol2col(0, 1, 1))
call assert_equal(2, virtcol2col(0, 1, 3))
call assert_equal(5, virtcol2col(0, 1, 5))
call assert_equal(8, virtcol2col(0, 1, 7))
call assert_equal(8, virtcol2col(0, 1, 8))
call assert_fails('echo virtcol2col("0", 1, 20)', 'E1210:')
call assert_fails('echo virtcol2col(0, "1", 20)', 'E1210:')
call assert_fails('echo virtcol2col(0, 1, "1")', 'E1210:')