Hi, In UTF-8 environment, with bash-4.2.42, type a command that takes up at least 3 lines, and contains an accented (UTF-8) letter in the first line. Move the cursor to the beginning, and insert more characters.
Just when the UTF-8 accented letter is pushed down to the second line, the last line becomes displayed incorrectly: its last letter is doubled. Same when you delete chars so that the accented one jumps back to the previous line. Updating the last line uses the macro VIS_LLEN to determine the length of that line in the 'old' buffer, which in turn accesses the vis_lbreaks array up to the index ind_botlin+1. When the UTF-8 character overflows, the 'old' buffer is modified and vis_lbreaks is supposed to be adjusted correctly, however, due to the premature end of the loop this last value is not updated. Please apply the attached trivial patch to fix the problem. Thanks, egmont
bash-4.2.42-last-line-misdrawn-after-char-insertion.patch
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