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patch 9.1.0043: ml_get: invalid lnum when :s replaces visual selection

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Problem:  ml_get: invalid lnum when :s replaces visual selection
          (@ropery)
Solution: substitute may decrement the number of lines in a buffer,
          so validate, that the bottom lines of the visual selection
          stays within the max buffer line

fixes: #13890
closes: #13892

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2024-01-22 20:12:34 +01:00
parent 3b2c27415d
commit 7c71db3a58
3 changed files with 14 additions and 0 deletions
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4
src/regexp.c
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@@ -1318,6 +1318,10 @@ reg_match_visual(void)
top = curbuf->b_visual.vi_end;
bot = curbuf->b_visual.vi_start;
}
// a substitue command may have
// removed some lines
if (bot.lnum > curbuf->b_ml.ml_line_count)
bot.lnum = curbuf->b_ml.ml_line_count;
mode = curbuf->b_visual.vi_mode;
curswant = curbuf->b_visual.vi_curswant;
}