iOS get lunar calendar with leap month

/*
* @DO The date of the lunar calendar for the specified date
* @param date [date specified]
* @return (NSString) [Lunar string for specified date]
*/
+ (NSString *) Getchinesecalendarwithdate: (NSDate *) Date
{
/* Zodiac Name */
const char *ctiangan[] = {"A", "B", "C", "Ding", "e", "own", "Geng", "Xin", "Ren", "decyl"};
/* Support Name */
const char *cdizhi[] = {"Child", "ugly", "Yin", "Mao", "Chen", "WU", "noon",
"Not", "Shen", "unitary", "Xu", "Hai"};
/* Zodiac Name */
const char *cshuxiang[] = {"Rat", "ox", "Tiger", "Rabbit", "dragon", "Snake",
"Horse", "sheep", "monkey", "Chicken", "dog", "Pig"};
/* Lunar Date name */
const char *cdayname[] = {"*", "Junior", "Second day", "Third Day", "four", "Duanwu",
"Arrest", "When初七because", "Holidays", "Penggushan", "decade",
"11", "12", "13", "14", "XV",
"16", "17", "18", "19", "20",
"21", "22", "23", "24", "25",
"26", "27", "28", "29", "30"};
/* Lunar month name */
const char *cmonname[] = {"*", "positive", "two", "three", "four", "five", "six",
"Seven", "eight", "Nine", "Ten", "11", "Wax"};

/* Calendar days in front of month */
const int WMONTHADD[12] = {0,31,59,90,120,151,181,212,243,273,304,334};
/* Lunar Data */
const int WNONGLIDATA[100] =
{2635,333387,1701,1748,267701,694,2391,133423,1175,396438
, 3402,3749,331177,1453,694,201326,2350,465197,3221,3402
, 400202,2901,1386,267611,605,2349,137515,2709,464533,1738
, 2901,330421,1242,2651,199255,1323,529706,3733,1706,398762
, 2741,1206,267438,2647,1318,204070,3477,461653,1386,2413
, 330077,1197,2637,268877,3365,531109,2900,2922,398042,2395
, 1179,267415,2635,661067,1701,1748,398772,2742,2391,330031
, 1175,1611,200010,3749,527717,1452,2742,332397,2350,3222
, 268949,3402,3493,133973,1386,464219,605,2349,334123,2709
, 2890,267946,2773,592565,1210,2651,395863,1323,2707,265877};

static int wcuryear,wcurmonth,wcurday;
static int nthedate,nisend,m,k,n,i,nbit;

Char sznongli[30], sznongliday[10],szshuxiang[10];
NSString * Sznongli = @ "";
NSString * Sznonglimonth = @ "";
NSString * Szshuxiang = @ "";
/*---Take the current calendar year, month, Day---*/

Nscalendar * cal = [Nscalendar Currentcalendar];
Nsuinteger unitflags = nsdaycalendarunit| Nsmonthcalendarunit| Nsyearcalendarunit;
nsdatecomponents * conponent = [cal Components:unitflags Fromdate:date];

Wcuryear = [Conponent year];
Wcurmonth = [conponent month];
Wcurday = [Conponent day];

/*---Calculated to the initial time February 8, 1921 days: 1921-2-8 (first day of the first month)---*/
Nthedate = (wCurYear-1921) * 365 + (wCurYear-1921)/4 + Wcurday + Wmonthadd
[WCurMonth-1]-38;
if ((!) ( Wcuryear% 4) && (Wcurmonth > 2))
Nthedate = nthedate + 1;
/*--calculates lunar zodiac, earthly branches, months, days---* *
nisend = 0;
m = 0;
while (nisend! = 1)
{
if (Wnonglidata[m] < 4095)
K = 11;
Else
K = 12;
n = k;
while (n>=0)
{
Gets the value of nth bits of Wnonglidata (m)
NBit = Wnonglidata[m];
for (i=1;i<n+1;i++)
NBit = NBIT/2;
NBit = nBit% 2;
if (nthedate <= (+ nBit))
{
Nisend = 1;
Break
}
Nthedate = Nthedate-29-nbit;
n = n-1;
}
if (nisend)
Break
m = m + 1;
}

Wcuryear = 1921 + M;
Wcurmonth = k-n + 1;
Wcurday = nthedate;

if (k = = 12)
{
if (Wcurmonth = = Wnonglidata[m]/65536 + 1)
Wcurmonth = 1-wcurmonth;
else if (Wcurmonth > Wnonglidata[m]/65536 + 1)
Wcurmonth = wCurMonth-1;
}
/*--generates lunar zodiac, earthly branches, Zodiac ==> wnongli--*/

Szshuxiang = [NSString stringwithcstring:cshuxiang[((wCurYear-4)%)%] encoding:nsutf8stringencoding];

NSString * Tempyear = [NSString stringwithcstring:ctiangan[((wCurYear-4)%)%] encoding:nsutf8stringencoding];
NSString * Tempdizhi = [NSString stringwithcstring:cdizhi[((wCurYear-4)%)%] encoding:nsutf8stringencoding];
Sznongli = [NSString stringwithformat:@ "%@ (%@%@) year", Szshuxiang,tempyear,tempdizhi];
/*--generation lunar month, day ==> wnongliday--*/
if (Wcurmonth < 1) {
NSString * Tempmonth = [nsstring stringwithcstring:cmonname[-1 * wcurmonth] encoding:nsutf8stringencoding];
Sznonglimonth = [Sznonglimonth stringbyappendingformat:@ "Leap%@ Month", Tempmonth];
} else{
NSString * Tempmonth = [NSString stringwithcstring:cmonname[wcurmonth] encoding:nsutf8stringencoding];
Sznonglimonth = [Sznonglimonth stringbyappendingformat:@ "%@ month", Tempmonth];
}

NSString * Tempdayname = [NSString stringwithcstring:cdayname[wcurday] encoding:nsutf8stringencoding];
Sznongli = [Sznongli stringbyappendingformat:@ "%@%@", Sznonglimonth,tempdayname];

return Sznongli;

}

iOS get lunar calendar with leap month