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// vim:ts=4:sw=4:expandtab
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <yajl/yajl_gen.h>
#include <yajl/yajl_version.h>
#include "i3status.h"
/* define fixed output-Strings */
char *season_long[5] = {
"Chaos",
"Discord",
"Confusion",
"Bureaucracy",
"The Aftermath"};
char *season_short[5] = {
"Chs",
"Dsc",
"Cfn",
"Bcy",
"Afm"};
char *day_long[5] = {
"Sweetmorn",
"Boomtime",
"Pungenday",
"Prickle-Prickle",
"Setting Orange"};
char *day_short[5] = {
"SM",
"BT",
"PD",
"PP",
"SO"};
char *holidays[10] = {
"Mungday",
"Mojoday",
"Syaday",
"Zaraday",
"Maladay",
"Chaoflux",
"Discoflux",
"Confuflux",
"Bureflux",
"Afflux"};
/* A helper-struct, taking the discordian date */
struct disc_time {
int year;
int season;
int week_day;
int season_day;
int st_tibs_day;
};
/* Print the date *dt in format *format */
static int format_output(char *outwalk, char *format, struct disc_time *dt) {
char *orig_outwalk = outwalk;
char *i;
char *tibs_end = 0;
for (i = format; *i != '\0'; i++) {
if (*i != '%') {
*(outwalk++) = *i;
continue;
}
switch (*(i + 1)) {
/* Weekday in long and abbreviation */
case 'A':
outwalk += sprintf(outwalk, "%s", day_long[dt->week_day]);
break;
case 'a':
outwalk += sprintf(outwalk, "%s", day_short[dt->week_day]);
break;
/* Season in long and abbreviation */
case 'B':
outwalk += sprintf(outwalk, "%s", season_long[dt->season]);
break;
case 'b':
outwalk += sprintf(outwalk, "%s", season_short[dt->season]);
break;
/* Day of the season (ordinal and cardinal) */
case 'd':
outwalk += sprintf(outwalk, "%d", dt->season_day + 1);
break;
case 'e':
outwalk += sprintf(outwalk, "%d", dt->season_day + 1);
if (dt->season_day > 9 && dt->season_day < 13) {
outwalk += sprintf(outwalk, "th");
break;
}
switch (dt->season_day % 10) {
case 0:
outwalk += sprintf(outwalk, "st");
break;
case 1:
outwalk += sprintf(outwalk, "nd");
break;
case 2:
outwalk += sprintf(outwalk, "rd");
break;
default:
outwalk += sprintf(outwalk, "th");
break;
}
break;
/* YOLD */
case 'Y':
outwalk += sprintf(outwalk, "%d", dt->year);
break;
/* Holidays */
case 'H':
if (dt->season_day == 4) {
outwalk += sprintf(outwalk, "%s", holidays[dt->season]);
}
if (dt->season_day == 49) {
outwalk += sprintf(outwalk, "%s", holidays[dt->season + 5]);
}
break;
/* Stop parsing the format string, except on Holidays */
case 'N':
if (dt->season_day != 4 && dt->season_day != 49) {
return (outwalk - orig_outwalk);
}
break;
/* Newline- and Tabbing-characters */
case 'n':
outwalk += sprintf(outwalk, "\n");
break;
case 't':
outwalk += sprintf(outwalk, "\t");
break;
/* The St. Tib's Day replacement */
case '{':
tibs_end = strstr(i, "%}");
if (tibs_end == NULL) {
i++;
break;
}
if (dt->st_tibs_day) {
/* We outpt "St. Tib's Day... */
outwalk += sprintf(outwalk, "St. Tib's Day");
} else {
/* ...or parse the substring between %{ and %} ... */
*tibs_end = '\0';
outwalk += format_output(outwalk, i + 2, dt);
*tibs_end = '%';
}
/* ...and continue with the rest */
i = tibs_end;
break;
case '}':
i++;
break;
default:
/* No escape-sequence, so we just skip */
outwalk += sprintf(outwalk, "%%%c", *(i + 1));
break;
}
i++;
}
return (outwalk - orig_outwalk);
}
/* Get the current date and convert it to discordian */
struct disc_time *get_ddate(struct tm *current_tm) {
static struct disc_time dt;
if (current_tm == NULL)
return NULL;
/* We have to know, whether we have to insert St. Tib's Day, so whether it's a leap
* year in gregorian calendar */
int is_leap_year = !(current_tm->tm_year % 4) &&
(!(current_tm->tm_year % 400) || current_tm->tm_year % 100);
/* If St. Tib's Day has passed, it will be necessary to skip a day. */
int yday = current_tm->tm_yday;
if (is_leap_year && yday == 59) {
/* On St. Tibs Day we don't have to define a date */
dt.st_tibs_day = 1;
} else {
dt.st_tibs_day = 0;
if (is_leap_year && yday > 59)
yday -= 1;
dt.season_day = yday % 73;
dt.week_day = yday % 5;
}
dt.year = current_tm->tm_year + 3066;
dt.season = yday / 73;
return &dt;
}
void print_ddate(yajl_gen json_gen, char *buffer, const char *format, time_t t) {
char *outwalk = buffer;
static char *form = NULL;
struct tm current_tm;
struct disc_time *dt;
set_timezone(NULL); /* Use local time. */
localtime_r(&t, ¤t_tm);
if ((dt = get_ddate(¤t_tm)) == NULL)
return;
if (form == NULL)
if ((form = malloc(strlen(format) + 1)) == NULL)
return;
strcpy(form, format);
outwalk += format_output(outwalk, form, dt);
OUTPUT_FULL_TEXT(buffer);
}
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