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patch 8.2.4427: getchar() may return modifiers if no character is available

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Problem:    getchar() may return modifiers if no character is available.
Solution:   Do not process modifiers when there is no character. (closes #9806)
This commit is contained in:
zeertzjq
2022-02-20 19:05:10 +00:00
committed by Bram Moolenaar
parent c1e6c7bafe
commit ad6c45f625
3 changed files with 7 additions and 1 deletions
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2
src/getchar.c
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@@ -2103,7 +2103,7 @@ getchar_common(typval_T *argvars, typval_T *rettv)
set_vim_var_nr(VV_MOUSE_COL, 0);
rettv->vval.v_number = n;
if (IS_SPECIAL(n) || mod_mask != 0)
if (n != 0 && (IS_SPECIAL(n) || mod_mask != 0))
{
char_u temp[10]; // modifier: 3, mbyte-char: 6, NUL: 1
int i = 0;

4
src/testdir/test_functions.vim
View File

@@ -1818,6 +1818,10 @@ func Test_getchar()
call assert_equal('', getcharstr(0))
call assert_equal('', getcharstr(1))
call feedkeys("\<M-F2>", '')
call assert_equal("\<M-F2>", getchar(0))
call assert_equal(0, getchar(0))
call setline(1, 'xxxx')
call test_setmouse(1, 3)
let v:mouse_win = 9

2
src/version.c
View File

@@ -750,6 +750,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
4427,
/**/
4426,
/**/