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vim-patch:8.2.3663: using %S in printf() does not work correctly

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Problem:    Using %S in printf() does not work correctly.
Solution:   Fix the problem and add more tests. (closes vim/vim#9208)
1f2453fec6
This commit is contained in:
zeertzjq
2022-01-16 17:37:06 +08:00
parent 9afefd32d3
commit 658ef9c01e
2 changed files with 70 additions and 15 deletions
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25
src/nvim/strings.c
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@@ -1001,25 +1001,20 @@ int vim_vsnprintf_typval(char *str, size_t str_m, const char *fmt, va_list ap, t
- str_arg);
}
if (fmt_spec == 'S') {
size_t base_width = min_field_width;
size_t pad_cell = 0;
char_u *p1;
size_t i;
if (precision) {
char_u *p1;
size_t i = 0;
for (p1 = (char_u *)str_arg; *p1;
p1 += utfc_ptr2len(p1)) {
i += (size_t)utf_ptr2cells(p1);
if (i > precision) {
break;
}
for (i = 0, p1 = (char_u *)str_arg; *p1; p1 += utfc_ptr2len(p1)) {
size_t cell = (size_t)utf_ptr2cells(p1);
if (precision_specified && i + cell > precision) {
break;
}
pad_cell = min_field_width - precision;
base_width = str_arg_l = (size_t)(p1 - (char_u *)str_arg);
i += cell;
}
str_arg_l = (size_t)(p1 - (char_u *)str_arg);
if (min_field_width != 0) {
min_field_width = base_width + pad_cell;
min_field_width += str_arg_l - i;
}
}
break;