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/* Spruce
* Copyright (C) 1999 Susixware
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "date.h"
gint get_days_in_month (gint mon, gint year)
{
switch (mon)
{
case 1: case 3: case 5: case 7: case 8: case 10: case 12:
return 31;
case 4: case 6: case 9: case 11:
return 30;
case 2:
if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0)
return 29;
return 28;
default:
return 30;
}
}
gint get_weekday (gchar *str)
{
g_return_val_if_fail (str != NULL, 0);
if (strncmp (str, "Mon", 3) == 0) {
return 1;
} else if (strncmp (str, "Tue", 3) == 0) {
return 2;
} else if (strncmp (str, "Wed", 3) == 0) {
return 3;
} else if (strncmp (str, "Thu", 3) == 0) {
return 4;
} else if (strncmp (str, "Fri", 3) == 0) {
return 5;
} else if (strncmp (str, "Sat", 3) == 0) {
return 6;
} else if (strncmp (str, "Sun", 3) == 0) {
return 7;
}
return 0; /* unknown week day */
}
gint get_month (gchar *str)
{
g_return_val_if_fail (str != NULL, 0);
if (strncmp (str, "Jan", 3) == 0) {
return 1;
} else if (strncmp (str, "Feb", 3) == 0) {
return 2;
} else if (strncmp (str, "Mar", 3) == 0) {
return 3;
} else if (strncmp (str, "Apr", 3) == 0) {
return 4;
} else if (strncmp (str, "May", 3) == 0) {
return 5;
} else if (strncmp (str, "Jun", 3) == 0) {
return 6;
} else if (strncmp (str, "Jul", 3) == 0) {
return 7;
} else if (strncmp (str, "Aug", 3) == 0) {
return 8;
} else if (strncmp (str, "Sep", 3) == 0) {
return 9;
} else if (strncmp (str, "Oct", 3) == 0) {
return 10;
} else if (strncmp (str, "Nov", 3) == 0) {
return 11;
} else if (strncmp (str, "Dec", 3) == 0) {
return 12;
}
return 0; /* unknown month */
}
date_t parse_date (gchar *datestr)
{
date_t date;
gchar month[6], tzone[6];
gdouble tz;
memset((void*)&date, 0, sizeof(date_t));
g_return_val_if_fail (datestr != NULL, date);
if (get_weekday(datestr)) /* sometimes we have a week day... */
{
strncpy(date.dow, datestr, 3);
datestr += 3;
if (*datestr == ',')
datestr++;
datestr++;
}
else
{
if (strchr(datestr, ',')) /* perhaps the week day is in a foreign language... */
datestr += 5;
}
sscanf (datestr, "%d %3s %d %d:%d:%d %5s", &date.day, month, &date.year,
&date.hour, &date.min, &date.sec, tzone);
date.mon = get_month (month);
tz = atoi (tzone) / 100.0;
/* forget the whole time zone thing for now... */
/*date.min -= (gint)(tz - (gint) tz) * 100;
if (date.min > 59)
{
date.min -= 60;
date.hour++;
}
else
if (date.min < 0)
{
date.min += 60;
date.hour--;
}
date.hour -= (gint)tz;
if (date.hour > 23)
{
date.hour -= 24;
date.day++;
}
else
if (date.hour < 0)
{
date.hour += 24;
date.day++;
}
if (date.day > get_days_in_month (date.mon, date.year))
{
date.day -= get_days_in_month (date.mon, date.year);
date.mon++;
}
else
if (date.day < 0)
{
date.day += get_days_in_month (date.mon, date.year);
date.mon--;
}
if (date.mon > 11)
{
date.mon -= 12;
date.year++;
}
else
if (date.mon < 0)
{
date.mon += 12;
date.year--;
}*/
return date;
}
gchar* print_date (struct tm* date)
{
gchar* newdate;
g_return_val_if_fail (date != NULL, NULL);
newdate = g_new (gchar, 100);
strftime (newdate, 100, "%a, %d %b %Y %H:%M:%S %z", date);
return newdate;
}
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