Created
October 28, 2014 11:38
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阴历
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| var lunarinfo = [19416, 19168, 42352, 21717, 53856, 55632, 91476, 22176, 39632, 21970, 19168, 42422, 42192, 53840, 119381, 46400, 54944, 44450, 38320, 84343, 18800, 42160, 46261, 27216, 27968, 109396, 11104, 38256, 21234, 18800, 25958, 54432, 59984, 28309, 23248, 11104, 100067, 37600, 116951, 51536, 54432, 120998, 46416, 22176, 107956, 9680, 37584, 53938, 43344, 46423, 27808, 46416, 86869, 19872, 42448, 83315, 21200, 43432, 59728, 27296, 44710, 43856, 19296, 43748, 42352, 21088, 62051, 55632, 23383, 22176, 38608, 19925, 19152, 42192, 54484, 53840, 54616, 46400, 46496, 103846, 38320, 18864, 43380, 42160, 45690, 27216, 27968, 44870, 43872, 38256, 19189, 18800, 25776, 29859, 59984, 27480, 21952, 43872, 38613, 37600, 51552, 55636, 54432, 55888, 30034, 22176, 43959, 9680, 37584, 51893, 43344, 46240, 47780, 44368, 21977, 19360, 42416, 86390, 21168, 43312, 31060, 27296, 44368, 23378, 19296, 42726, 42208, 53856, 60005, 54576, 23200, 30371, 38608, 19415, 19152, 42192, 118966, 53840, 54560, 56645, 46496, 22224, 21938, 18864, 42359, 42160, 43600, 111189, 27936, 44448], | |
| STR1 = "日一二三四五六七八九十".split(""), | |
| STR2 = ["初", "十", "廿", "卅", "\u3000"], | |
| BASEDATE = new Date(1900, 0, 31); | |
| function lyeardays(a) { | |
| var b, c = 348; | |
| for (b = 32768; 8 < b; b >>= 1) c += lunarinfo[a - 1900] & b ? 1 : 0; | |
| return c + leapdays(a) | |
| } | |
| function leapdays(a) { | |
| return leapmonth(a) ? lunarinfo[a - 1900] & 65536 ? 30 : 29 : 0 | |
| } | |
| function leapmonth(a) { | |
| return lunarinfo[a - 1900] & 15 | |
| } | |
| function monthdays(a, b) { | |
| return lunarinfo[a - 1900] & 65536 >> b ? 30 : 29 | |
| } | |
| function Lunar(a) { | |
| this.date = a || new Date; | |
| var b = 0, | |
| c = 0, | |
| d = (this.date - BASEDATE) / 864E5; | |
| this.daycyl = d + 40; | |
| this.moncyl = 14; | |
| for (a = 1900; 2050 > a && 0 < d; a++) c = lyeardays(a), d -= c, this.moncyl += 12; | |
| 0 > d && (d += c, a--, this.moncyl -= 12); | |
| this.year = a; | |
| this.yearcyl = a - 1864; | |
| b = leapmonth(a); | |
| this.isleap = !1; | |
| for (a = 1; 13 > a && 0 < d; a++) 0 < b && a == b + 1 && !1 == this.isleap ? (--a, this.isleap = !0, c = leapdays(this.year)) : c = monthdays(this.year, a), !0 == this.isleap && a == b + 1 && (this.isleap = !1), d -= c, !1 == this.isleap && this.moncyl++; | |
| 0 == d && (0 < b && a == b + 1) && (this.isleap ? | |
| this.isleap = !1 : (this.isleap = !0, --a, --this.moncyl)); | |
| 0 > d && (d += c, --a, --this.moncyl); | |
| this.month = a; | |
| this.day = d + 1 | |
| } | |
| Lunar.prototype.getLunarMonth = function() { | |
| var a = "", | |
| a = 10 < this.month ? a + ("十" + STR1[this.month - 10]) : a + STR1[this.month], | |
| a = a + "月"; | |
| "十二月" == a ? a = "腊月" : "一月" == a && (a = "正月"); | |
| return a | |
| }; | |
| Lunar.prototype.getLunarDay = function() { | |
| var a = ""; | |
| switch (this.day) { | |
| case 10: | |
| a += "初十"; | |
| break; | |
| case 20: | |
| a += "二十"; | |
| break; | |
| case 30: | |
| a += "三十"; | |
| break; | |
| default: | |
| a += STR2[Math.floor(this.day / 10)], a += STR1[Math.floor(this.day % 10)] | |
| } | |
| return a | |
| }; | |
| Lunar.prototype.getLunar = function() { | |
| return this.getLunarMonth() + this.getLunarDay() | |
| }; | |
| Lunar.prototype.getMOD = function() { | |
| var a = this.getLunarDay(); | |
| "初一" == a && (a = this.getLunarMonth()); | |
| return a | |
| }; |
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