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이 모듈에 대한 설명문서는 모듈:Date2/설명문서에서 만들 수 있습니다

This module is intended for processing of date strings.

Please do not modify this code without applying the changes first at Module:Date/sandbox and testing 
at Module:Date/sandbox/testcases and Module talk:Date/sandbox/testcases.

Authors and maintainers:
* User:Parent5446 - original version of the function mimicking template:ISOdate
* User:Jarekt - original version of the functions mimicking template:Date and template:ISOyear


local p = {}

-- =======================================
-- === Dependencies ======================
-- =======================================
--local i18n     = require('Module:I18n/date')		-- get localized translations of date formats
--local Fallback = require('Module:Fallback')			-- get fallback functions
local yesno    = require('Module:Yesno')

local i18n = {
	DateLang = {
		['ko'] = 'ko-form'
	DateFormat = {
		['ko-form'] = {
		YMD   ='Y년 F j일',		
		YM    ='Y년 F',		
		Y     ='Y',

This function is the core part of the ISOdate template. 
     year,month,day,hour,minute,second: broken down date-time component strings
  lang: The language to display it in
  case: Language format (genitive, etc.) for some languages
 class: CSS class for the <time> node, use "" for no metadata at all

 Error Handling:

function p.Date(frame)
	return p._Date(	
			frame.args["year"] or '', 
			frame.args["month"] or '',
			frame.args["day"] or '', 
		frame.args["lang"] or 'ko',          -- language
		frame.args["trim_year"] or '100-999' -- by default pad one and 2 digit years to be 4 digit long, while keeping 3 digit years as is

function p._Date(datevec, lang, trim_year)	
	-- make sure inputs are in the right format
	if #datevec<6 then 
		for i=#datevec,6,1 do datevec[i]='' end 
	if  not trim_year then trim_year = '100-999' end

	-- if language is not provided than look up users language
	-- WARNING: This step should be done by the template as it does not seem to work as well here (cache issues?)
	if not lang or  not mw.language.isValidCode( lang ) then
		lang = 'ko'
	-- Just in case someone broke the internationalization code than fix the english defaults
	if i18n.DateLang['ko'] == nil then
		i18n.DateLang['ko'] = 'ko-form'
	if i18n.DateFormat['ko-form'] == nil then
		i18n.DateFormat['ko-form'] =  {
		YMD   ='Y년 F j일',		
		YM    ='Y년 F',		
		Y     ='Y',

	-- create datecode based on which variables are provided and check for out of bound values
	local maxval = {9999, 12, 31} -- max values for year, month, ...
	local c = {'Y', 'M', 'D'}
	local datecode = '' -- a string signifying which combination of variables was provided
	local datenum = {}  -- date-time encoded as a vector = [year, month, ... , second]
	for i, v in ipairs( datevec ) do
		if v~=nil and v~='' then
			datecode = datecode .. c[i]
			datenum[i] = tonumber(v)
			if datenum[i]==nil and i==2 then
				-- month is not a number -> check if it is a month name in English
				v ='en'):formatDate( "n", v)
				datenum[i] = tonumber(v)
			if datenum[i]==nil or datenum[i]>maxval[i] then
				-- Some numbers are out of range -> abort and return the empty string
				return ''
	-- create time stamp string (for example 2000-02-20 02:20:20) based on which variables were provided
	local timeStamp
	if datecode:sub(1,3)=='YMD' then
		timeStamp = string.format('%04i-%02i-%02i', datenum[1], datenum[2], datenum[3] )
		datecode = 'YMD' -- 'YMD', 'YMDHMS' and 'YMDHM' are the only supported format starting with 'YMD'. All others will be converted to 'YMD'
	elseif datecode == 'YM' then
		timeStamp = string.format('%04i-%02i', datenum[1], datenum[2] )
	elseif datecode:sub(1,1)=='Y' then
		timeStamp = string.format('%04i', datenum[1] )
		datecode = 'Y' 
		return ''  -- format not supported

	-- ==========================================================
	-- === Create Date String using in chosen language
	-- ==========================================================
	-- which form should the date take? 
	-- Use Fallback module to handle rare languages which are more likely to use different for than default EN form
	local langDateForm = 'ko-form'
	-- Look up country specific format input to {{#time}} function
	local dFormat = i18n.DateFormat[langDateForm][datecode]
	-- Lua only date formating using {{#time}} parser function (new)
		-- prefered call which gives "Lua error: too many language codes requested." on the [[Module talk:Date/sandbox/testcases]] page
		--local datestr = dFormat, timeStamp) 
	local datestr = mw.getCurrentFrame():callParserFunction( "#time", { dFormat, timeStamp, lang } )
	-- If year<1000 than either keep it padded to the length of 4 digits or trim it
	-- decide if the year will stay padded with zeros (for years in 0-999 range)
	if datenum[1]~= nil and datenum[1]<1000 then
		local trim = yesno(trim_year,nil)
		if trim == nil then
			local YMin, YMax = trim_year:match( '(%d+)-(%d+)' )
			trim = (YMin~=nil and datenum[1]>=tonumber(YMin) and datenum[1]<=tonumber(YMax)) 
		-- If the date form isn't the Thai solar calendar, don't zero pad years in the range of 100-999.  
		-- If at some point support for Islamic/Hebrew/Japanese years is added, they may need to be skipped as well. 
		if trim then
			--local yearStr1 = 'Y', timeStamp)
			local yearStr1 = mw.getCurrentFrame():callParserFunction( "#time", { 'Y', timeStamp, lang } )
			--local yearStr1 = datestr:match( '%d%d%d%d' ) -- 4 digits in a row (in any language) - that must be a year
			local yearStr2 = yearStr1
			local zeroStr = mw.ustring.sub(yearStr1,1,1)
			for i=1,3 do -- trim leading zeros
				if mw.ustring.sub(yearStr2,1,1)==zeroStr then
					yearStr2 = mw.ustring.sub(yearStr2, 2, 5-i)
			datestr = datestr:gsub( yearStr1, yearStr2 )
			--datestr = string.format('%s (%s, %s)', datestr, yearStr1, yearStr2 )
	return datestr

return p