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dafyomi.c
144 lines (131 loc) · 3.43 KB
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dafyomi.c
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/*
This is the Hebcal daf yomi calculator,
adapted by Aaron Peromsik from Bob Newell's public domain daf.el.
more info: https://groups.google.com/forum/#!topic/comp.emacs/Gr-rijg2kgM
*/
#include <stdio.h>
#include <string.h>
#include "hebcal.h"
#include "dafyomi.h"
#include "config.h"
#include "translations.h"
#define _(String) lookup_translation(String)
#define NM_LEN 60
struct mesechta {
char *sname;
int blatt;
};
static struct mesechta shas[] = {
{ "Berachot", 64 },
{ "Shabbat", 157 },
{ "Eruvin", 105 },
{ "Pesachim", 121 },
{ "Shekalim", 22 },
{ "Yoma", 88 },
{ "Sukkah", 56 },
{ "Beitzah", 40 },
{ "Rosh Hashana", 35 },
{ "Taanit", 31 },
{ "Megillah", 32 },
{ "Moed Katan", 29 },
{ "Chagigah", 27 },
{ "Yevamot", 122 },
{ "Ketubot", 112 },
{ "Nedarim", 91 },
{ "Nazir", 66 },
{ "Sotah", 49 },
{ "Gitin", 90 },
{ "Kiddushin", 82 },
{ "Baba Kamma", 119 },
{ "Baba Metzia", 119 },
{ "Baba Batra", 176 },
{ "Sanhedrin", 113 },
{ "Makkot", 24 },
{ "Shevuot", 49 },
{ "Avodah Zarah", 76 },
{ "Horayot", 14 },
{ "Zevachim", 120 },
{ "Menachot", 110 },
{ "Chullin", 142 },
{ "Bechorot", 61 },
{ "Arachin", 34 },
{ "Temurah", 34 },
{ "Keritot", 28 },
{ "Meilah", 22 },
{ "Kinnim", 4 },
{ "Tamid", 10 },
{ "Midot", 4 },
{ "Niddah", 73 }
};
void hebcal_dafyomi( date_t *greg_day )
{
int dafcnt = 40;
int cno, dno, osday, nsday, total, count, j, cday, blatt;
date_t tmp_date;
char buffer[NM_LEN];
tmp_date.mm = 9;
tmp_date.dd = 11;
tmp_date.yy = 1923;
osday = greg2abs(tmp_date);
tmp_date.mm = 6;
tmp_date.dd = 24;
tmp_date.yy = 1975;
nsday = greg2abs(tmp_date);
cday = greg2abs(*greg_day);
/* No cycle, new cycle, old cycle */
if (cday < osday)
return; /* daf yomi hadn't started yet */
if (cday >= nsday)
{
cno = 8 + ( (cday - nsday) / 2711 );
dno = (cday - nsday) % 2711;
}
else
{
cno = 1 + ( (cday - osday) / 2702 );
dno = (cday - osday) / 2702;
}
/* Find the daf taking note that the cycle changed slightly after cycle 7. */
total = blatt = 0;
count = -1;
/* Fix Shekalim for old cycles */
if (cno <= 7)
shas[4].blatt = 13;
else
shas[4].blatt = 22;
/* Find the daf */
j = 0;
while (j < dafcnt)
{
count++;
total = total + shas[j].blatt - 1;
if (dno < total)
{
blatt = (shas[j].blatt + 1) - (total - dno);
/* fiddle with the weird ones near the end */
switch(count)
{
case 36:
blatt = blatt + 21;
break;
case 37:
blatt = blatt + 24;
break;
case 38:
blatt = blatt + 33;
break;
default:
break;
}
/* Bailout */
j = 1 + dafcnt;
}
j ++;
}
sprintf(buffer,
_("Daf Yomi: %s %d"),
_(shas[count].sname),
blatt );
PrintGregDate(*greg_day);
printf("%s\n", buffer);
}