1#include <wchar.h>
2#include <stdlib.h>
3#include <time.h>
4#include <locale.h>
5#include "locale_impl.h"
6#include "time_impl.h"
7
8size_t __wcsftime_l(wchar_t *restrict s, size_t n, const wchar_t *restrict f, const struct tm *restrict tm, locale_t loc)
9{
10	size_t l, k;
11	char buf[100];
12	wchar_t wbuf[100];
13	wchar_t *p;
14	const char *t_mb;
15	const wchar_t *t;
16	int pad, plus;
17	unsigned long width;
18	for (l=0; l<n; f++) {
19		if (!*f) {
20			s[l] = 0;
21			return l;
22		}
23		if (*f != '%') {
24			s[l++] = *f;
25			continue;
26		}
27		f++;
28		pad = 0;
29		if (*f == '-' || *f == '_' || *f == '0') pad = *f++;
30		if ((plus = (*f == '+'))) f++;
31		width = wcstoul(f, &p, 10);
32		if (*p == 'C' || *p == 'F' || *p == 'G' || *p == 'Y') {
33			if (!width && p!=f) width = 1;
34		} else {
35			width = 0;
36		}
37		f = p;
38		if (*f == 'E' || *f == 'O') f++;
39		t_mb = __strftime_fmt_1(&buf, &k, *f, tm, loc, pad);
40		if (!t_mb) break;
41		k = mbstowcs(wbuf, t_mb, sizeof wbuf / sizeof *wbuf);
42		if (k == (size_t)-1) return 0;
43		t = wbuf;
44		if (width) {
45			for (; *t=='+' || *t=='-' || (*t=='0'&&t[1]); t++, k--);
46			width--;
47			if (plus && tm->tm_year >= 10000-1900)
48				s[l++] = '+';
49			else if (tm->tm_year < -1900)
50				s[l++] = '-';
51			else
52				width++;
53			for (; width > k && l < n; width--)
54				s[l++] = '0';
55		}
56		if (k >= n-l) k = n-l;
57		wmemcpy(s+l, t, k);
58		l += k;
59	}
60	if (n) {
61		if (l==n) l=n-1;
62		s[l] = 0;
63	}
64	return 0;
65}
66
67size_t wcsftime(wchar_t *restrict wcs, size_t n, const wchar_t *restrict f, const struct tm *restrict tm)
68{
69	return __wcsftime_l(wcs, n, f, tm, CURRENT_LOCALE);
70}
71
72weak_alias(__wcsftime_l, wcsftime_l);
73