9 extern locale_t *wc_locales;
12 typedef unsigned char byte;
14 #define FALSE 0 /**< no. */
15 #define TRUE 1 /**< yes. */
18 * Wrapper around strftime() or strftime_l()
19 * depending upon how our build is configured.
21 * s String target buffer
22 * max Maximum size of string target buffer
23 * format strftime() format
26 size_t wc_strftime(char *s, size_t max, const char *format, const struct tm *tm)
31 if (wc_locales[WC->selected_language] == NULL) {
32 return strftime(s, max, format, tm);
35 return strftime_l(s, max, format, tm, wc_locales[WC->selected_language]);
38 return strftime(s, max, format, tm);
41 return strftime(s, max, format, tm);
48 * Format a date/time stamp for output
50 void webcit_fmt_date(char *buf, size_t siz, time_t thetime, int Format)
57 time_format = get_time_format_cached ();
58 today_timet = time(NULL);
59 localtime_r(&today_timet, &today_tm);
61 localtime_r(&thetime, &tm);
64 * DATEFMT_FULL: full display
65 * DATEFMT_BRIEF: if date == today, show only the time
66 * otherwise, for messages up to 6 months old,
67 * show the month and day, and the time
68 * older than 6 months, show only the date
69 * DATEFMT_RAWDATE: show full date, regardless of age
70 * DATEFMT_LOCALEDATE: show full date as prefered for the locale
75 if ((tm.tm_year == today_tm.tm_year)
76 &&(tm.tm_mon == today_tm.tm_mon)
77 &&(tm.tm_mday == today_tm.tm_mday)) {
78 if (time_format == WC_TIMEFORMAT_24)
79 wc_strftime(buf, siz, "%k:%M", &tm);
81 wc_strftime(buf, siz, "%l:%M%p", &tm);
83 else if (today_timet - thetime < 15552000) {
84 if (time_format == WC_TIMEFORMAT_24)
85 wc_strftime(buf, siz, "%b %d %k:%M", &tm);
87 wc_strftime(buf, siz, "%b %d %l:%M%p", &tm);
90 wc_strftime(buf, siz, "%b %d %Y", &tm);
94 if (time_format == WC_TIMEFORMAT_24)
95 wc_strftime(buf, siz, "%a %b %d %Y %T %Z", &tm);
97 wc_strftime(buf, siz, "%a %b %d %Y %r %Z", &tm);
100 wc_strftime(buf, siz, "%a %b %d %Y", &tm);
102 case DATEFMT_LOCALEDATE:
103 wc_strftime(buf, siz, "%x", &tm);
110 * Try to guess whether the user will prefer 12 hour or 24 hour time based on the locale.
112 long guess_calhourformat(void) {
115 memset(&tm, 0, sizeof tm);
116 wc_strftime(buf, 64, "%X", &tm);
117 if (buf[strlen(buf)-1] == 'M') {
125 * learn the users timeformat preference.
127 int get_time_format_cached (void)
130 int *time_format_cache;
131 time_format_cache = &(WC->time_format_cache);
132 if (*time_format_cache == WC_TIMEFORMAT_NONE)
134 get_pref_long("calhourformat", &calhourformat, 99);
136 /* If we don't know the user's time format preference yet,
137 * make a guess based on the locale.
139 if (calhourformat == 99) {
140 calhourformat = guess_calhourformat();
143 /* Now set the preference */
144 if (calhourformat == 24)
145 *time_format_cache = WC_TIMEFORMAT_24;
147 *time_format_cache = WC_TIMEFORMAT_AMPM;
149 return *time_format_cache;
153 * Format TIME ONLY for output
154 * buf the output buffer
155 * thetime time to format into buf
157 void fmt_time(char *buf, size_t siz, time_t thetime)
163 time_format = get_time_format_cached ();
165 tm = localtime(&thetime);
172 if (time_format == WC_TIMEFORMAT_24) {
173 snprintf(buf, siz, "%d:%02d",
174 tm->tm_hour, tm->tm_min
178 snprintf(buf, siz, "%d:%02d%s",
179 hour, tm->tm_min, ((tm->tm_hour > 12) ? "pm" : "am")
188 * Break down the timestamp used in HTTP headers
189 * Should read rfc1123 and rfc850 dates OK
190 * FIXME won't read asctime
191 * Doesn't understand timezone, but we only should be using GMT/UTC anyway
193 time_t httpdate_to_timestamp(StrBuf *buf)
199 /** Skip day of week, to number */
200 for (c = ChrPtr(buf); *c != ' '; c++)
204 memset(&tt, 0, sizeof(tt));
206 /* Get day of month */
207 tt.tm_mday = atoi(c);
208 for (; *c != ' ' && *c != '-'; c++);
213 case 'A': /* April, August */
214 tt.tm_mon = (c[1] == 'p') ? 3 : 7;
216 case 'D': /* December */
219 case 'F': /* February */
222 case 'M': /* March, May */
223 tt.tm_mon = (c[2] == 'r') ? 2 : 4;
225 case 'J': /* January, June, July */
226 tt.tm_mon = (c[2] == 'n') ? ((c[1] == 'a') ? 0 : 5) : 6;
228 case 'N': /* November */
231 case 'O': /* October */
234 case 'S': /* September */
239 break; /* NOTREACHED */
245 tt.tm_year = atoi(c);
246 for (; *c != ' '; c++);
248 if (tt.tm_year >= 1900)
252 tt.tm_hour = atoi(c);
253 for (; *c != ':'; c++);
258 for (; *c != ':'; c++);
263 for (; *c && *c != ' '; c++);
265 /* Got everything; let's go. The global 'timezone' variable contains the
266 * local timezone's offset from UTC, in seconds, so we apply that to tm_sec.
267 * This produces an illegal value for tm_sec, but mktime() will normalize
268 * it for us. This eliminates the need to temporarily switch the environment
269 * variable TZ to UTC, which is good because it fails to switch back on
273 tt.tm_sec = tt.tm_sec - (int)timezone;
279 void LoadTimeformatSettingsCache(StrBuf *Preference, long lvalue)
281 int *time_format_cache;
283 time_format_cache = &(WC->time_format_cache);
285 *time_format_cache = WC_TIMEFORMAT_24;
287 *time_format_cache = WC_TIMEFORMAT_AMPM;
296 RegisterPreference("calhourformat", _("Time format"), PRF_INT, LoadTimeformatSettingsCache);