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#include <wchar.h>
#include <time.h>
#include <locale.h>
#include "locale_impl.h"
#include "time_impl.h"
size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, const struct tm *restrict tm, locale_t loc)
{
size_t l, k;
char buf[100];
wchar_t wbuf[100];
wchar_t *p;
const char *t_mb;
const wchar_t *t;
int pad, plus;
unsigned long width;
for (l=0; l<n; f++) {
if (!*f) {
s[l] = 0;
return l;
}
if (*f != '%') {
s[l++] = *f;
continue;
}
f++;
pad = 0;
if (*f == '-' || *f == '_' || *f == '0') pad = *f++;
if ((plus = (*f == '+'))) f++;
width = wcstoul(f, &p, 10);
if (*p == 'C' || *p == 'F' || *p == 'G' || *p == 'Y') {
if (!width && p!=f) width = 1;
} else {
width = 0;
}
f = p;
if (*f == 'E' || *f == 'O') f++;
t_mb = __strftime_fmt_1(&buf, &k, *f, tm, loc, pad);
if (!t_mb) break;
k = mbstowcs(wbuf, t_mb, sizeof wbuf / sizeof *wbuf);
if (k == (size_t)-1) return 0;
t = wbuf;
if (width) {
for (; *t=='+' || *t=='-' || (*t=='0'&&t[1]); t++, k--);
width--;
if (plus && tm->tm_year >= 10000-1900)
s[l++] = '+';
else if (tm->tm_year < -1900)
s[l++] = '-';
else
width++;
for (; width > k && l < n; width--)
s[l++] = '0';
}
if (k >= n-l) k = n-l;
wmemcpy(s+l, t, k);
l += k;
}
if (n) {
if (l==n) l=n-1;
s[l] = 0;
}
return 0;
}
size_t wcsftime(wchar_t *restrict wcs, size_t n, const wchar_t *restrict f, const struct tm *restrict tm)
{
return __wcsftime_l(wcs, n, f, tm, CURRENT_LOCALE);
}
weak_alias(__wcsftime_l, wcsftime_l);
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