มอดูล:Complex date

--
__  __           _       _         ____                      _                 _

_ ___ 

__/ _ \

__/>  Error in Module:Complex date: input parameter "%s" is not recognized.', operation or 'nil')
		return 
	end
	local dateStr = langSwitch(i18n.Translationsoperation, lang)
	if type(dateStr)=='table' then
		dateStr = dateStr1
	end
	if type(dateStr)=='function' then
		local dateFunc = dateStr
		local nDates = i18n.Translationsoperation'nDates'
		if nDates==2 then -- 2 date phrase
			dateStr = dateFunc(date1, date2, state)
		else  -- 1 date phrase
			dateStr = dateFunc(date1, state)
		end
	end
	
	if type(dateStr)=='string' then
		-- replace parts of the string '$date1' and '$date2' with date1 and date2 strings
		dateStr = mw.ustring.gsub(dateStr, '$date1', date1)
		dateStr = mw.ustring.gsub(dateStr, '$date2', date2)
	else
		-- Special case of more complex phrases that can be build out of simple phrases
		-- If complex case is not translated to "lang" than build it out of simpler ones
		local x = dateStr
		dateStr = p._complex_date(x.conj, x.adj1, date1, x.units1, x.era1, x.adj2, date2, x.units2, x.era2, lang, 2)
	end
	return dateStr
end
-- ===================================================================**
local function oneDatePhrase(dateStr, adj, era, units, lang, num, case, state)
-- translate a single date phrase
	if num==2 then
		state.adj, state.era, state.units, state.precision = state.adj2, state.era2, state.units2, state.precision2
	end
	
	-- dateStr can have many forms: ISO date, year or a number for
	-- decade, century or millennium
	if units ==  then -- unit is "year", "month", "day"
		dateStr = getISODate(dateStr, adj, lang, num, case)
	else -- units is "decade", "century", "millennium
		dateStr = translatePhrase(dateStr, , units, lang, state)
	end
	
	-- add adjective ("early", "mid", etc.) or preposition ("before", "after",
	-- "circa", etc.) to the date
	if adj ~=  then
		dateStr = translatePhrase(dateStr, , adj, lang, state)
	else -- only era?
		dateStr = formatnum1(dateStr, lang)
	end
	
	-- add era
	if era ~=  then
		dateStr = translatePhrase(dateStr, , era, lang, state)
	end
	return dateStr
end
-- ===================================================================**
local function twoDatePhrase(date1, date2, state, lang)
-- translate a double date phrase
	local dateStr, case
	local era=
	if state.era1 == state.era2 then
		-- if both eras are the same than add it only once
		era = state.era1
		state.era1 = 
		state.era2 = 
	end
	case = {nil, nil}
	if i18n.Translationsstate.conj then
		local rec = langSwitch(i18n.Translationsstate.conj, lang)
		if type(rec)=='table' then
			case = rec.case
		end
	end
	date1   = oneDatePhrase(date1, state.adj1, state.era1, state.units1, lang, 1, case1, state)
	date2   = oneDatePhrase(date2, state.adj2, state.era2, state.units2, lang, 2, case2, state)
	dateStr = translatePhrase(date1, date2, state.conj, lang, state)
	if era ~=  then
		dateStr = translatePhrase(dateStr, , era, lang, state)
	end
	return dateStr
end
-- ===================================================================**
local function otherPhrases(date1, date2, operation, era, lang, state)
-- translate specialized phrases
	local dateStr = 
		
	if operation == 'islamic' then
		if date2== then date2 = mw.getCurrentFrame():callParserFunction('#time', 'xmY', date1) end
		date1 = getISODate(date1, operation, lang, 1, nil)
		date2 = getISODate(date2, operation, lang, 2, nil)
		if era ==  then era = 'ad' end
		dateStr = translatePhrase(date1, , era, lang, state) .. ' (' .. translatePhrase(date2, , 'ah', lang, state) .. ')'
		era = 
	elseif operation == 'julian' then
		if not date2 and date1 then -- Convert from Julian to Gregorian calendar date
			if Calendar == nil then
				Calendar = require("Module:Calendar") -- lazy loding (only if needed)
			end
			local JDN = Calendar._date2jdn(date1, 0)
			if JDN then
				date2 = date1 -- first date is assumed to be Julian
				date1 = Calendar._jdn2date(JDN, 1)
			end
		end
		date1 = getISODate(date1, operation, lang, 1, nil)
		date2 = getISODate(date2, operation, lang, 2, nil)
		dateStr = translatePhrase(date1, date2, operation, lang, state)
		dateStr = mw.ustring.gsub(mw.ustring.gsub(dateStr, '%( ', '('), ' %)', ')') -- in case date2 is empty
	elseif operation == 'turn of the year' or operation == 'turn of the decade' or operation == 'turn of the century' then
		local dt = 1
		if operation == 'turn of the decade' then dt=10 end
		if not date2 or date2== then date2=tostring(tonumber(date1)-dt) end
		if era~='bp' and era~='bc' then date1, date2 = date2, date1 end
		if operation == 'turn of the year' then
			date1 = ISOdate(date1, lang, , , 1)
			date2 = ISOdate(date2, lang, , , 1)
		else
			date1 = formatnum1(date1, lang)
			date2 = formatnum1(date2, lang)
		end
		dateStr = translatePhrase(date1, date2, operation, lang, state)
	elseif operation == 'year unknown' then
		dateStr = translatePhrase(, , operation, lang, state) .. 'Unknown date'
	elseif operation == 'unknown' then
		dateStr = tostring(mw.message.new( "exif-unknowndate" ):inLanguage( lang )) .. 'Unknown date'
	end
	
	-- add era
	if era ~=  then
		dateStr = translatePhrase(dateStr, , era, lang, state)
	end
	return dateStr
end
-- ===================================================================**
local function checkAliases(str1, str2, sType)
-- some inputs have many aliases - reconcile them and ensure string is playing a proper role	
	local out = 
	if str1 and str1~= then
		local a = i18n.Synonymsstr1 -- look up synonyms of "str1"
		if a then
			out = a1
		else
			p.Error = string.format('Error in Module:Complex date: %s is not recognized.', str1)
		end
	elseif str2 and str2~= then -- if "str1" of type "sType" is empty than maybe ...
		local a = i18n.Synonymsstr2   -- ..."str2" is of the same type and is not empty
		if a and a2==sType then
			out  = a1
			str2 = 
		end
	end
	return out, str2
end
-- ===================================================================**
local function datePrecision(dateStr, units)
-- "in this module "Units" is a string like millennium, century, or decade
--	"precision" is wikibase compatible date precision number: 6=millennium, 7=century, 8=decade, 9=year, 10=month, 11=day
-- based on string or numeric input calculate "Units" and "precision"
	local precision
	if type(units)=='number' then
		precision = units
		if precision>11 then precision=11 end -- clip the range of precision values
		if     precision==6 then units='millennium'
		elseif precision==7 then units='century'
		elseif precision==8 then units='decade'
		else units = 
		end
	elseif type(units)=='string' then
		units = string.lower(units)
		if     units=='millennium' then precision=6
		elseif units=='century'    then precision=7
		elseif units=='decade'     then precision=8
		else precision=9
		end
	end
	if units== or precision==9 then
		local sLen = mw.ustring.len(dateStr)
		if     sLen=10 then precision=11
		end
		units=
	end
	if precision==6 and dateStr.match( dateStr, '%d000' )~=nil then
		dateStr = tostring(math.floor(tonumber(dateStr)/1000) +1)
	elseif precision==7 and mw.ustring.match( dateStr, '%d%d00' )~=nil then
		dateStr = tostring(math.floor(tonumber(dateStr)/100) +1)
	end
	return dateStr, units, precision
end
-- ===================================================================**
local function isodate2timestamp(dateStr, precision, era)
-- convert date string to timestamps used by Quick Statements
	local tStamp = nil
	if era == 'ah' or precision=9 then
		if string.match(dateStr,"^%d%d%d%d$") then               -- if YYYY  format
			tStamp = era .. dateStr .. '-00-00T00:00:00Z/9'
		elseif string.match(dateStr,"^%d%d%d%d%-%d%d$") then      -- if YYYY-MM format
			tStamp = era .. dateStr .. '-00T00:00:00Z/10'
		elseif string.match(dateStr,"^%d%d%d%d%-%d%d%-%d%d$") then  -- if YYYY-MM-DD format
			tStamp = era .. dateStr .. 'T00:00:00Z/11'
		end
	elseif precision==8 then -- decade
		tStamp = era .. dateStr .. '-00-00T00:00:00Z/8'
	elseif precision==7 then -- century
		local d = tostring(tonumber(dateStr)-1)
		tStamp = era .. d .. '50-00-00T00:00:00Z/7'
	elseif precision==6 then
		local d = tostring(tonumber(dateStr)-1)
		tStamp = era .. d .. '500-00-00T00:00:00Z/6'
	end
	
	return tStamp
end
-- ===================================================================**
local function oneDateQScode(dateStr, adj, era, precision)
-- create QuickStatements string for "one date" dates
	local outputStr = 
	local d = isodate2timestamp(dateStr, precision, era)
	if not d then
		return 
	end
	local rLUT = {            early='Q40719727'     , mid='Q40719748',      late='Q40719766',
		'1quarter'='Q40690303' , '2quarter'='Q40719649'  , '3quarter'='Q40719662', '4quarter'='Q40719674',
		spring='Q40720559'   , summer='Q40720564'    , autumn='Q40720568'  , winter='Q40720553',
		firsthalf='Q40719687', secondhalf='Q40719707' }
	local qLUT = {'from'='P580', 'until'='P582', 'after'='P1319', 'before'='P1326', 'by'='P1326'}
	local refine = rLUTadj
	local qualitier = qLUTadj
	if adj== then
		outputStr = d
	elseif adj=='circa' then
		outputStr = d..",P1480,Q5727902"
	elseif refine then
		outputStr = d..",P4241,"..refine
	elseif precision>7 and qualitier then
		local century = string.gsub(d, 'Z%/%d+', 'Z/7')
		outputStr = century ..",".. qualitier ..","..d
	end
	return outputStr
end
-- ===================================================================**
local function twoDateQScode(date1, date2, state)
-- create QuickStatements string for "two date" dates
	if state.adj1~= or state.adj2~= or state.era1~=state.era2 then
		return  -- QuickStatements string are not generated for two date phrases with adjectives
	end
	local outputStr = 
	local d1 = isodate2timestamp(date1, state.precision1, state.era1)
	local d2 = isodate2timestamp(date2, state.precision2, state.era2)
	if (not d1) or (not d2) then
		return 
	end
	-- find date with lower precision in common to both dates
	local cd
	local year1 = tonumber(string.sub(d1,2,5))
	local year2 = tonumber(string.sub(d2,2,5))
	local k = 0
	for i = 1,10,1 do
		if string.sub(d1,1,i)==string.sub(d2,1,i) then
			k = i -- find last matching letter
		end
	end
	if k>=9 then              -- same month, since "+YYYY-MM-" is in common
		cd = isodate2timestamp(string.sub(d1,2,8), 10, state.era1)
	elseif k>=6 and k 20
		cd = isodate2timestamp( d, 7, state.era1)
	elseif k==2 then          -- same millennium (k=2, precision=6),  since "+Y" is in common
		local d = tostring(math.floor(year1/1000) +1) -- convert 1999 -> 2
		cd = isodate2timestamp( d, 6, state.era1)
	end
	if not cd then
		return 
	end
	--if not cd then
	--	return ' error: ' .. d1.." / " .. d2.." / ".. (cd or ) .." / ".. string.sub(d1,2,5).." / " .. string.sub(d2,2,5).." / " .. tostring(k)
	--end
	--
	if (state.conj=='from-until') or (state.conj=='and' and year1==year2-1) then
		outputStr = cd ..",P580,".. d1 ..",P582,".. d2
	elseif (state.conj=='between') or (state.conj=='or' and year1==year2-1) then
		outputStr = cd ..",P1319,".. d1 ..",P1326,".. d2
	elseif state.conj=='circa2' then
		outputStr = cd ..",P1319,".. d1 ..",P1326,".. d2 ..",P1480,Q5727902"
	end
	return outputStr
end
-- ===================================================================**
local function processInputParams(conj, adj1, date1, units1, era1, adj2, date2, units2, era2, lang, passNr)
	-- process inputs and save date in state array
	local state  = {}
	state.conj   = string.lower(conj   or )
	state.adj1   = string.lower(adj1   or )
	state.adj2   = string.lower(adj2   or )
	state.era1   = string.lower(era1   or )
	state.era2   = string.lower(era2   or )
	state.units1 = string.lower(units1 or )
	state.units2 = string.lower(units2 or )
	-- if date 1 is missing but date 2 is provided than swap them
	if date1 ==  and date2 ~=  then
		date1 = date2
		date2 = 
		state = {adj1 = state.adj2, era1 = state.era2, units1 = state.units2, 
		         adj2 = ,         era2 = ,         units2 = ,  conj=state.conj, num=1}
	end
	if     date2 ~=  then state.nDates = 2
	elseif date1 ~=  then state.nDates = 1
	else                    state.nDates = 0
	end
	-- reconcile alternative names for text inputs
	local conj         = checkAliases(state.conj ,  ,'j')
	state.adj1 ,conj   = checkAliases(state.adj1 ,conj,'a')
	state.units1,conj  = checkAliases(state.units1,conj,'p')
	state.era1 ,conj   = checkAliases(state.era1 ,conj,'e')
	state.special,conj = checkAliases(,conj,'c')
	state.adj2         = checkAliases(state.adj2 ,,'a')
	state.units2       = checkAliases(state.units2,,'p')
	state.era2         = checkAliases(state.era2 ,,'e')
	state.conj         = conj
	state.lang         = lang
	if p.Error~=nil then
		return nil
	end
	-- calculate date precision value
	date1, state.units1, state.precision1 = datePrecision(date1, state.units1)
	date2, state.units2, state.precision2 = datePrecision(date2, state.units2)
	-- Handle special cases
	-- Some complex phrases can be created out of simpler ones. Therefore on pass # 1 we try to create
	-- the phrase using complex phrase and if that is not found than on the second pass we try to build
	-- the phrase out of the simpler ones
	if passNr==1 then
		if state.adj1=='circa' and state.nDates == 2 then
			state.conj = 'circa2'
			state.adj1 = 
			state.adj2 = 
		end
		if state.nDates == 2 and state.adj1=='late' and state.adj2=='early' and state.conj=='and'
		and state.units1==state.units2 and state.era1==state.era2 then
			if state.units1=='century' then
				state.conj='turn of the century'
			elseif state.units1=='decade' then
				state.conj='turn of the decade'
			elseif state.units1== then
				state.conj='turn of the year'
			end
			state.adj1 = 
			state.adj2 = 
			state.units1 = 
			state.units2 = 
		end
	end
	state.adj, state.era, state.units, state.precision = state.adj1, state.era1, state.units1, state.precision1
	return date1, date2, state
end
-- ==============================================**
-- === External functions =======================**
-- ==============================================**
function p.Era(frame)
	-- process inputs
	local dateStr
	local args    = frame.args
	if not (args.lang and mw.language.isSupportedLanguage(args.lang)) then
		args.lang = frame:callParserFunction( "int", "lang" ) -- get user's chosen language
	end
	local lang    = args'lang'
	local dateStr = args'date' or 
	local eraType = string.lower(args'era'  or )
	dateStr = ISOdate(dateStr, lang, , , 1)
	if eraType then 
		eraType = checkAliases(eraType ,,'e')
		dateStr = translatePhrase(dateStr, , eraType, lang, {})
	end
	return dateStr
end
-- ===================================================================**
function p._complex_date(conj, adj1, date1, units1, era1, adj2, date2, units2, era2, lang, passNr)
	local Output=
	local state
	-- process inputs and save date in state array
	date1, date2, state  = processInputParams(conj, adj1, date1, units1, era1, adj2, date2, units2, era2, lang, passNr)
	if p.Error~=nil then
		return nil
	end
	local errorStr = string.format(
	  '\n*conj=%s, adj1=%s, era1=%s, unit1=%s, prec1=%i, adj2=%s, era2=%s, unit2=%s, prec2=%i, special=%s',
	  state.conj, state.adj1, state.era1, state.units1, state.precision1,
	  state.adj2, state.era2, state.units2, state.precision2, state.special)
	-- call specialized functions
	local QScode = 
	if state.special~= then
		Output = otherPhrases(date1, date2, state.special, state.era1, lang, state)
	elseif state.conj~= then
		QScode = twoDateQScode(date1, date2, state)
		Output = twoDatePhrase(date1, date2, state, lang)
	elseif state.adj1~= or state.era1~= or state.units1~= then
		Output = oneDatePhrase(date1, state.adj1, state.era1, state.units1, lang, 1, nil, state)
		QScode = oneDateQScode(date1, state.adj1, state.era1, state.precision1)
	elseif date1~= then
		Output = ISOdate(date1, lang, , 'dtstart', '100-999')
	end
	if p.Error~=nil then
		return errorStr
	end
	-- if there is any wikicode in the string than execute it
	if mw.ustring.find(Output, '{') then
		Output = mw.getCurrentFrame():preprocess(Output)
	end
	if QScode and #QScode>0 then
		QScode = ' date QS:P,' .. QScode .. 
	end
	return Output .. QScode
end
-- ===================================================================**
function p._complex_date_cer(conj, adj1, date1, units1, era1, adj2, date2, units2, era2, certainty, lang)
-- same as p._complex_date but with extra parameter for certainty: probably, possibly, presumably, etc.
	local dateStr = p._complex_date(conj, adj1, date1, units1, era1, adj2, date2, units2, era2, lang, 1)
	certainty = checkAliases(certainty, conj, 'r')
	local LUT = {probably='Q56644435',  presumably='Q18122778', possibly='Q30230067', circa='Q5727902' }
	if certainty and LUTcertainty then
		local state  = {} 
		date1, date2, state  = processInputParams(conj, adj1, date1, units1, era1, adj2, date2, units2, era2, lang, 1)
		dateStr = translatePhrase(dateStr, , certainty, lang, state)
		dateStr = string.gsub(dateStr, '(%date QS:P,^%)', '%1,P1480,' .. LUTcertainty .. '%2' )
	end
	return dateStr
end
-- ===================================================================**
function p.complex_date(frame)
	-- process inputs
	local dateStr
	local args   = frame.args
	if not (args.lang and mw.language.isSupportedLanguage(args.lang)) then
		args.lang = frame:callParserFunction( "int", "lang" ) -- get user's chosen language
	end
	local date1  = args'date1' or args'2' or args'date' or 
	local date2  = args'date2' or args'3' or 
	local conj   = args'conj'  or args'1' or 
	local adj1   = args'adj1'  or args'adj' or 
	local adj2   = args'adj2' or 
	local units1 = args'precision1' or args'precision' or 
	local units2 = args'precision2' or args'precision' or 
	local era1   = args'era1' or args'era' or 
	local era2   = args'era2' or args'era' or 
	local certainty = args'certainty'
	local lang   = args'lang'
	dateStr = p._complex_date_cer(conj, adj1, date1, units1, era1, adj2, date2, units2, era2, certainty, lang)
	if p.Error~=nil then
		dateStr = p.Error .. 
	end
	return dateStr
end
return p