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patch 9.0.2159: screenpos() may crash with neg. column

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Problem:  screenpos() may crash with neg. column
Solution: validate and correct column

closes: #13669

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
zeertzjq 2023-12-12 16:43:44 +01:00 committed by Christian Brabandt
parent a40e1687e7
commit ec54af4e26
No known key found for this signature in database
GPG Key ID: F3F92DA383FDDE09
3 changed files with 9 additions and 0 deletions
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2
src/move.c
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@ -1531,6 +1531,8 @@ f_screenpos(typval_T *argvars UNUSED, typval_T *rettv)
return;
}
pos.col = tv_get_number(&argvars[2]) - 1;
if (pos.col < 0)
pos.col = 0;
pos.coladd = 0;
textpos2screenpos(wp, &pos, &row, &scol, &ccol, &ecol);

5
src/testdir/test_cursor_func.vim
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@ -206,6 +206,11 @@ func Test_screenpos()
nmenu WinBar.TEST :
call assert_equal(#{col: 1, row: 2, endcol: 1, curscol: 1}, screenpos(win_getid(), 1, 1))
nunmenu WinBar.TEST
call assert_equal(#{col: 1, row: 1, endcol: 1, curscol: 1}, screenpos(win_getid(), 1, 1))
call assert_equal(#{col: 0, row: 0, endcol: 0, curscol: 0}, screenpos(0, 0, 1))
call assert_equal(#{col: 0, row: 0, endcol: 0, curscol: 0}, screenpos(0, -1, 1))
call assert_equal(#{col: 1, row: 1, endcol: 1, curscol: 1}, screenpos(0, 1, -v:maxcol))
endfunc
func Test_screenpos_fold()

2
src/version.c
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@ -704,6 +704,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
2159,
/**/
2158,
/**/