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patch 8.2.3950: going beyond the end of the line with /\%V

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Problem:    Going beyond the end of the line with /\%V.
Solution:   Check for valid column in getvcol().
This commit is contained in:
Bram Moolenaar
2021-12-30 15:29:18 +00:00
parent 4c13e5e676
commit 94f3192b03
3 changed files with 19 additions and 4 deletions
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13
src/charset.c
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@@ -1240,10 +1240,15 @@ getvcol(
posptr = NULL; // continue until the NUL
else
{
// Special check for an empty line, which can happen on exit, when
// ml_get_buf() always returns an empty string.
if (*ptr == NUL)
pos->col = 0;
colnr_T i;
// In a few cases the position can be beyond the end of the line.
for (i = 0; i < pos->col; ++i)
if (ptr[i] == NUL)
{
pos->col = i;
break;
}
posptr = ptr + pos->col;
if (has_mbyte)
// always start on the first byte