[vim/vim] mbyte: wrong cell count for an overlong UTF-8 sequence (PR #21005)

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5:54 AM (6 hours ago) 5:54 AM

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Problem:  An overlong UTF-8 encoding of an unprintable ASCII character is
          displayed as <xx> but counted as two screen cells, so that the
          cursor ends up in the wrong position when editing the line.
Solution: Count four cells for an unprintable overlong sequence.

fixes: #20988

You can view, comment on, or merge this pull request online at:

https://github.com/vim/vim/pull/21005

Commit Summary

14ba5e4 mbyte: wrong cell count for an overlong UTF-8 sequence

File Changes

(2 files)

M src/mbyte.c (10)
M src/testdir/test_utf8.vim (20)

Patch Links:

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