Mercurial > vim
diff src/ops.c @ 27245:776db9e02b61 v8.2.4151
patch 8.2.4151: reading beyond the end of a line
Commit: https://github.com/vim/vim/commit/57df9e8a9f9ae1aafdde9b86b10ad907627a87dc
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Jan 20 12:10:48 2022 +0000
patch 8.2.4151: reading beyond the end of a line
Problem: Reading beyond the end of a line.
Solution: For block insert only use the offset for correcting the length.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Thu, 20 Jan 2022 13:15:04 +0100 |
| parents | be5e01f3ee3b |
| children | 93d4ee1e6113 |
line wrap: on
line diff
--- a/src/ops.c +++ b/src/ops.c @@ -529,24 +529,9 @@ block_insert( } if (has_mbyte && spaces > 0) - { - int off; - - // Avoid starting halfway a multi-byte character. - if (b_insert) - { - off = (*mb_head_off)(oldp, oldp + offset + spaces); - spaces -= off; - count -= off; - } - else - { - // spaces fill the gap, the character that's at the edge moves - // right - off = (*mb_head_off)(oldp, oldp + offset); - offset -= off; - } - } + // avoid copying part of a multi-byte character + offset -= (*mb_head_off)(oldp, oldp + offset); + if (spaces < 0) // can happen when the cursor was moved spaces = 0;