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Module:NepaliDateConverter
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local p = {}; --This function converts nepali date to english date -- See MOS for date format(Wikipedia:Manual of Style/Dates and numbers) --The output can be checked by using following code in article page/template page --{{#invoke:moduleForNepaliDateConverter|returnEnglishDate|nepaiYear=1984|nepaliMonth=6|nepaliDay=21}}-->Retruns full date --{{#invoke:moduleForNepaliDateConverter|returnEnglishDate|nepaiYear=1984}}-->Retruns years e.g. 2007-2008 function p.returnEnglishDate(frame) -- add a function to p local n_year = tonumber(frame.args.nepaliYear) local n_month = tonumber(frame.args.nepaliMonth) local n_day = tonumber(frame.args.nepaliDay) --define variables to hold converted date local e_date -- when nepali day or month is missing, retrun the year only -- or when date is out of range(2000-2089 BS), return year only -- or when there are error in days or months, return year only local e_year1 local e_year2 if (n_month== nil or n_month>12 or n_day==nil or n_day>32 or n_year < 2000 or n_year > 2089) then e_year1=n_year-57 e_year2=n_year-56 e_date=n_year .. ' [[Bikram Sambat|BS]] ('.. e_year1 .. '-' .. e_year2 .. ')' return e_date end -- when both month and day is given, and year is in range and return compelte date --- calculate e_date=p.nep_to_eng(n_year, n_month, n_day) return e_date end function p.nep_to_eng(yy, mm, dd) local def_nyy = 2000 local def_nmm = 1 local def_ndd = 1 -- equivalent nepali dates -- initializate local total_nDays = 0 local i = 0 local k = 1 local numDay = 0 -- array for nepali calendar local bs={} --declear array to hold bikram sambat calendar and fill the array bs[1]={2000, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[2]={2001, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[3]={2002, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[4]={2003, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[5]={2004, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[6]={2005, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[7]={2006, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[8]={2007, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[9]={2008, 31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 29, 31} bs[10]={2009, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[11]={2010, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[12]={2011, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[13]={2012, 31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 30, 30} bs[14]={2013, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[15]={2014, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[16]={2015, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[17]={2016, 31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 30, 30} bs[18]={2017, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[19]={2018, 31, 32, 31, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[20]={2019, 31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[21]={2020, 31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30} bs[22]={2021, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[23]={2022, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 30} bs[24]={2023, 31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[25]={2024, 31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30} bs[26]={2025, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[27]={2026, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[28]={2027, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[29]={2028, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[30]={2029, 31, 31, 32, 31, 32, 30, 30, 29, 30, 29, 30, 30} bs[31]={2030, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[32]={2031, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[33]={2032, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[34]={2033, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[35]={2034, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[36]={2035, 30, 32, 31, 32, 31, 31, 29, 30, 30, 29, 29, 31} bs[37]={2036, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[38]={2037, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[39]={2038, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[40]={2039, 31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 30, 30} bs[41]={2040, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[42]={2041, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[43]={2042, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[44]={2043, 31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 30, 30} bs[45]={2044, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[46]={2045, 31, 32, 31, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[47]={2046, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[48]={2047, 31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30} bs[49]={2048, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[50]={2049, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 30} bs[51]={2050, 31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[52]={2051, 31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30} bs[53]={2052, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[54]={2053, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 30} bs[55]={2054, 31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[56]={2055, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[57]={2056, 31, 31, 32, 31, 32, 30, 30, 29, 30, 29, 30, 30} bs[58]={2057, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[59]={2058, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[60]={2059, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[61]={2060, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[62]={2061, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[63]={2062, 30, 32, 31, 32, 31, 31, 29, 30, 29, 30, 29, 31} bs[64]={2063, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[65]={2064, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[66]={2065, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[67]={2066, 31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 29, 31} bs[68]={2067, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[69]={2068, 31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[70]={2069, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[71]={2070, 31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 30, 30} bs[72]={2071, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[73]={2072, 31, 32, 31, 32, 31, 30, 30, 29, 30, 29, 30, 30} bs[74]={2073, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31} bs[75]={2074, 31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30} bs[76]={2075, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[77]={2076, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 30} bs[78]={2077, 31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31} bs[79]={2078, 31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30} bs[80]={2079, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30} bs[81]={2080, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 30} bs[82]={2081, 31, 31, 32, 32, 31, 30, 30, 30, 29, 30, 30, 30} bs[83]={2082, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30} bs[84]={2083, 31, 31, 32, 31, 31, 30, 30, 30, 29, 30, 30, 30} bs[85]={2084, 31, 31, 32, 31, 31, 30, 30, 30, 29, 30, 30, 30} bs[86]={2085, 31, 32, 31, 32, 30, 31, 30, 30, 29, 30, 30, 30} bs[87]={2086, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30} bs[88]={2087, 31, 31, 32, 31, 31, 31, 30, 30, 29, 30, 30, 30} bs[89]={2088, 30, 31, 32, 32, 30, 31, 30, 30, 29, 30, 30, 30} bs[90]={2089, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30} bs[91]={2090, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30} -- if additional calander becomes available, please put here --count total days for upto given year for i = 0, yy - def_nyy-1 do for j = 2, 13 do total_nDays = total_nDays + bs[k][j] end k = k + 1 end --count and add days for the months for j = 2, mm - 1+1 do total_nDays = total_nDays + bs[k][j] end --count and add total days within the month total_nDays = total_nDays + dd aaa= total_nDays --======================================= ---calculation of equivalent english date-- --======================================== local def_eyy = 1943 local def_emm = 4 local def_edd = 14 - 1 -- 1 Baisakh 2000 BS=14 April , 1943 AD -- array for english calendar local month = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31} --normal english year local lmonth = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31} --leap english year local a = 0 -- to hold days of a month during calculation local total_eDays = def_edd local day = 4 - 1 local m = def_emm local y = def_eyy while (total_nDays ~= 0) do if (p.is_leap_year(y)) then a = lmonth[m] else a = month[m] end total_eDays = total_eDays + 1 day = day + 1 if (total_eDays > a) then m = m + 1 total_eDays = 1 if (m > 12) then y = y + 1 m = 1 end end if (day > 7) then day = 1 end total_nDays = total_nDays - 1 end numDay = day local monthNameEnglish={'January','February','March','April','May','June','July','August','September','October','November','December'} local monthNameNepali={'Baisakh','Jesth','Ashad','Shrawan','Bhadra','Ashwin','Kartik','Mangsir','Poush','Magh','Falgun','Chaitra'} returnVal=total_eDays..' '..monthNameEnglish[m]..' '..y..' ('.. dd ..' '.. monthNameNepali[mm]..' '.. yy..' [[Bikram Sambat|BS]])' return returnVal end function p.is_leap_year(year) --this function checks if the given year is a leap year or not local returnVal local a = tonumber(year) if math.fmod(a,100) == 0 then if math.fmod(a,400) == 0 then returnVal = true else returnVal = false end else if math.fmod(a,4)==0 then returnVal = true else returnVal = false end end return returnVal end return p --All modules end by returning the variable containing their functions to Wikipedia.
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