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+/* $ DVCS ID: $jer|,523/lhos,KYTP!41023161\b"?" <<= DO NOT DELETE! */
+
+/* ddate.c .. converts boring normal dates to fun Discordian Date -><-
+ written the 65th day of The Aftermath in the Year of Our Lady of
+ Discord 3157 by Druel the Chaotic aka Jeremy Johnson aka
+ mpython@gnu.ai.mit.edu
+ 28 Sever St Apt #3
+ Worcester MA 01609
+
+ and I'm not responsible if this program messes anything up (except your
+ mind, I'm responsible for that)
+
+ (k) YOLD 3161 and all time before and after.
+ Reprint, reuse, and recycle what you wish.
+ This program is in the public domain. Distribute freely. Or not.
+
+ Majorly hacked, extended and bogotified/debogotified on
+ Sweetmorn, Bureaucracy 42, 3161 YOLD, by Lee H:. O:. Smith, KYTP,
+ aka Andrew Bulhak, aka acb@dev.null.org
+
+ Slightly hackled and crackled by a sweet firey stove on
+ Boomtime, the 53rd day of Bureaucracy in the YOLD 3179,
+ by Chaplain Nyan the Wiser, aka Dan Dart, aka ntw@dandart.co.uk
+
+ and I'm not responsible if this program messes anything up (except your
+ mind, I'm responsible for that) (and that goes for me as well --lhos)
+
+ Version history:
+ Bureflux 3161: First release of enhanced ddate with format strings
+ 59 Bcy, 3161: PRAISE_BOB and KILL_BOB options split, other minor
+ changes.
+ 53 Bcy, 3179: Fixed gregorian date conversions less than YOLD 1167
+
+ 1999-02-22 Arkadiusz Miskiewicz <misiek@pld.ORG.PL>
+ - added Native Language Support
+
+ 2000-03-17 Burt Holzman <holzman+ddate@gmail.com>
+ - added range checks for dates
+
+ 2014-06-07 William Woodruff <william@tuffbizz.com>
+ - removed gettext dependent locale code
+
+ 15th of Confusion, 3180:
+ - call out adherents of the wrong fruit
+
+ FIVE TONS OF FLAX
+*/
+
+/* configuration options VVVVV READ THIS!!! */
+
+/* If you wish ddate(1) to print the date in the same format as Druel's
+ * original ddate when called in immediate mode, define OLD_IMMEDIATE_FMT
+ */
+
+#define OLD_IMMEDIATE_FMT
+
+/* If you wish to use the US format for aneristic dates (m-d-y), as opposed to
+ * the Commonwealth format, define US_FORMAT.
+ */
+
+/* #define US_FORMAT */
+
+/* If you are ideologically, theologically or otherwise opposed to the
+ * Church of the SubGenius and do not wish your copy of ddate(1) to contain
+ * code for counting down to X-Day, undefine KILL_BOB */
+
+#define KILL_BOB 13013
+
+/* If you wish ddate(1) to contain SubGenius slogans, define PRAISE_BOB */
+
+/*#define PRAISE_BOB 13013*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <stdio.h>
+
+
+// work around includes and defines from formerly c.h
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
+#endif
+
+/* &a[0] degrades to a pointer: a different type from an array */
+# define __must_be_array(a) \
+ BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(__typeof__(a), __typeof__(&a[0])))
+
+#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
+
+/* work around hacks for standalone package */
+#define PACKAGE "ddate"
+#define PACKAGE_STRING "Stand Alone"
+
+#ifndef __GNUC__
+#define inline /* foo */
+#endif
+
+#ifdef KILL_BOB
+int xday_countdown(int yday, int year);
+#endif
+
+
+/* string constants */
+
+char *day_long[5] = {
+ "Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"
+};
+
+char *day_short[5] = {"SM","BT","PD","PP","SO"};
+
+char *season_long[5] = {
+ "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"
+};
+
+char *season_short[5] = {"Chs", "Dsc", "Cfn", "Bcy", "Afm"};
+
+char *holyday[5][2] = {
+ { "Mungday", "Chaoflux" },
+ { "Mojoday", "Discoflux" },
+ { "Syaday", "Confuflux" },
+ { "Zaraday", "Bureflux" },
+ { "Maladay", "Afflux" }
+};
+
+struct disc_time {
+ int season; /* 0-4 */
+ int day; /* 0-72 */
+ int yday; /* 0-365 */
+ int year; /* 3066- */
+};
+
+char *excl[] = {
+ "Hail Eris!", "All Hail Discordia!", "Kallisti!", "Fnord.", "Or not.",
+ "Wibble.", "Pzat!", "P'tang!", "Frink!",
+#ifdef PRAISE_BOB
+ "Slack!", "Praise \"Bob\"!", "Or kill me.",
+#endif /* PRAISE_BOB */
+ /* randomness, from the Net and other places. Feel free to add (after
+ checking with the relevant authorities, of course). */
+ "Grudnuk demand sustenance!", "Keep the Lasagna flying!",
+ "You are what you see.",
+ "Or is it?", "This statement is false.",
+ "Lies and slander, sire!", "Hee hee hee!",
+#if defined(linux) || defined (__linux__) || defined (__linux)
+ "Hail Eris, Hack Linux!",
+#elif defined(__APPLE__)
+ "This Fruit is not the True Fruit of Discord.",
+#endif
+ ""
+};
+
+char default_fmt[] = "%{%A, %B %d%}, %Y YOLD";
+char *default_immediate_fmt=
+#ifdef OLD_IMMEDIATE_FMT
+"Today is %{%A, the %e day of %B%} in the YOLD %Y%N%nCelebrate %H"
+#else
+default_fmt
+#endif
+;
+
+#define DY(y) (y+1166)
+
+static inline char *ending(int i) {
+ return i/10==1?"th":(i%10==1?"st":(i%10==2?"nd":(i%10==3?"rd":"th")));
+}
+
+static inline int leapp(int i) {
+ return (!(DY(i)%4))&&((DY(i)%100)||(!(DY(i)%400)));
+}
+
+/* select a random string */
+static inline char *sel(char **strings, int num) {
+ return(strings[random()%num]);
+}
+
+void print(struct disc_time,char **); /* old */
+void format(char *buf, const char* fmt, struct disc_time dt);
+/* read a fortune file */
+int load_fortunes(char *fn, char *delim, char** result);
+
+struct disc_time convert(int,int);
+struct disc_time makeday(int,int,int);
+
+int
+main (int argc, char *argv[]) {
+ long t;
+ struct tm *eris;
+ int bob,raw;
+ struct disc_time hastur;
+ char schwa[23*17], *fnord=0;
+ int pi;
+ char *progname, *p;
+
+ progname = argv[0];
+ if ((p = strrchr(progname, '/')) != NULL)
+ progname = p+1;
+
+ srandom(time(NULL));
+ /* do args here */
+ for(pi=1; pi<argc; pi++) {
+ switch(argv[pi][0]) {
+ case '+': fnord=argv[pi]+1; break;
+ case '-':
+ switch(argv[pi][1]) {
+ case 'V':
+ printf(("%s (%s)\n"), progname, PACKAGE_STRING);
+ default: goto usage;
+ }
+ default: goto thud;
+ }
+ }
+
+ thud:
+ if (argc-pi==3){
+ int moe=atoi(argv[pi]), larry=atoi(argv[pi+1]), curly=atoi(argv[pi+2]);
+ hastur=makeday(
+#ifdef US_FORMAT
+ moe,larry,
+#else
+ larry,moe,
+#endif
+ curly);
+ if (hastur.season == -1) {
+ printf("Invalid date -- out of range\n");
+ return -1;
+ }
+ fnord=fnord?fnord:default_fmt;
+ } else if (argc!=pi) {
+ usage:
+ fprintf(stderr,("usage: %s [+format] [day month year]\n"), argv[0]);
+ exit(1);
+ } else {
+ t= time(NULL);
+ eris=localtime(&t);
+ bob=eris->tm_yday; /* days since Jan 1. */
+ raw=eris->tm_year; /* years since 1980 */
+ hastur=convert(bob,raw);
+ fnord=fnord?fnord:default_immediate_fmt;
+ }
+ format(schwa, fnord, hastur);
+ printf("%s\n", schwa);
+
+ return 0;
+}
+
+void format(char *buf, const char* fmt, struct disc_time dt)
+{
+ int tib_start=-1, tib_end=0;
+ int i, fmtlen=strlen(fmt);
+ char *bufptr=buf;
+
+/* fprintf(stderr, "format(%p, \"%s\", dt)\n", buf, fmt);*/
+
+ /* first, find extents of St. Tib's Day area, if defined */
+ for(i=0; i<fmtlen; i++) {
+ if(fmt[i]=='%') {
+ switch(fmt[i+1]) {
+ case 'A':
+ case 'a':
+ case 'd':
+ case 'e':
+ if(tib_start>0) tib_end=i+1;
+ else tib_start=i;
+ break;
+ case '{': tib_start=i; break;
+ case '}': tib_end=i+1; break;
+ }
+ }
+ }
+
+ /* now do the formatting */
+ buf[0]=0;
+
+ for(i=0; i<fmtlen; i++) {
+ if((i==tib_start) && (dt.day==-1)) {
+ /* handle St. Tib's Day */
+ strcpy(bufptr, ("St. Tib's Day"));
+ bufptr += strlen(bufptr);
+ i=tib_end;
+ } else {
+ if(fmt[i]=='%') {
+ char *wibble=0, snarf[23];
+ switch(fmt[++i]) {
+ case 'A': wibble=day_long[dt.yday%5]; break;
+ case 'a': wibble=day_short[dt.yday%5]; break;
+ case 'B': wibble=season_long[dt.season]; break;
+ case 'b': wibble=season_short[dt.season]; break;
+ case 'd': sprintf(snarf, "%d", dt.day+1); wibble=snarf; break;
+ case 'e': sprintf(snarf, "%d%s", dt.day+1, ending(dt.day+1));
+ wibble=snarf; break;
+ case 'H': if(dt.day==4||dt.day==49)
+ wibble=holyday[dt.season][dt.day==49]; break;
+ case 'N': if(dt.day!=4&&dt.day!=49) goto eschaton; break;
+ case 'n': *(bufptr++)='\n'; break;
+ case 't': *(bufptr++)='\t'; break;
+
+ case 'Y': sprintf(snarf, "%d", dt.year); wibble=snarf; break;
+ case '.': wibble=sel(excl, ARRAY_SIZE(excl));
+ break;
+#ifdef KILL_BOB
+ case 'X': sprintf(snarf, "%d",
+ xday_countdown(dt.yday, dt.year));
+ wibble = snarf; break;
+#endif /* KILL_BOB */
+ }
+ if(wibble) {
+/* fprintf(stderr, "wibble = (%s)\n", wibble);*/
+ strcpy(bufptr, wibble); bufptr+=strlen(wibble);
+ }
+ } else {
+ *(bufptr++) = fmt[i];
+ }
+ }
+ }
+ eschaton:
+ *(bufptr)=0;
+}
+
+struct disc_time makeday(int imonth,int iday,int iyear) /*i for input */
+{
+ struct disc_time funkychickens;
+
+ int cal[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 };
+ int dayspast=0;
+
+ memset(&funkychickens,0,sizeof(funkychickens));
+ /* basic range checks */
+ if (imonth < 1 || imonth > 12 || iyear == 0) {
+ funkychickens.season = -1;
+ return funkychickens;
+ }
+ if (iday < 1 || iday > cal[imonth-1]) {
+ if (!(imonth == 2 && iday == 29 && iyear%4 == 0 &&
+ (iyear%100 != 0 || iyear%400 == 0))) {
+ funkychickens.season = -1;
+ return funkychickens;
+ }
+ }
+
+ imonth--;
+ /* note: gregorian year 0 doesn't exist so
+ * add one if user specifies a year less than 0 */
+ funkychickens.year= iyear+1166 + ((0 > iyear)?1:0);
+ while(imonth>0) { dayspast+=cal[--imonth]; }
+ funkychickens.day=dayspast+iday-1;
+ funkychickens.season=0;
+ if((funkychickens.year%4)==2) {
+ if (funkychickens.day==59 && iday==29) funkychickens.day=-1;
+ }
+ funkychickens.yday=funkychickens.day;
+/* note: EQUAL SIGN...hopefully that fixes it */
+ while(funkychickens.day>=73) {
+ funkychickens.season++;
+ funkychickens.day-=73;
+ }
+ return funkychickens;
+}
+
+struct disc_time convert(int nday, int nyear)
+{ struct disc_time funkychickens;
+
+ funkychickens.year = nyear+3066;
+ funkychickens.day=nday;
+ funkychickens.season=0;
+ if ((funkychickens.year%4)==2)
+ {if (funkychickens.day==59)
+ funkychickens.day=-1;
+ else if (funkychickens.day >59)
+ funkychickens.day-=1;
+ }
+ funkychickens.yday=funkychickens.day;
+ while (funkychickens.day>=73)
+ { funkychickens.season++;
+ funkychickens.day-=73;
+ }
+ return funkychickens;
+
+ }
+
+#ifdef KILL_BOB
+
+/* Code for counting down to X-Day, X-Day being Cfn 40, 3164
+ *
+ * After `X-Day' passed without incident, the CoSG declared that it had
+ * got the year upside down --- X-Day is actually in 8661 AD rather than
+ * 1998 AD.
+ *
+ * Thus, the True X-Day is Cfn 40, 9827.
+ *
+ */
+
+int xday_countdown(int yday, int year) {
+ int r=(185-yday)+(((yday<59)&&(leapp(year)))?1:0);
+ while(year<9827) r+=(leapp(++year)?366:365);
+ while(year>9827) r-=(leapp(year--)?366:365);
+ return r;
+}
+
+#endif
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