Module:Complex date

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--[[ 

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|_|  |_|\___/ \__,_|\__,_|_|\___(_)\____\___/|_| |_| |_| .__/|_|\___/_/\_\  \__,_|\__,_|\__\___|
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This module is intended for creation of complex date phrases in variety of languages.

Once deployed, please do not modify this code without applying the changes first at Module:Complex date/sandbox and testing at Module:Complex date/sandbox/testcases.

Authors and maintainers:

  • User:Sn1per - first draft of the original version
  • User:Jarekt - corrections and expansion of the original version

]]

-- List of external modules and functions local p = {Error = nil} local i18n = require('Module:i18n/complex date') local ISOdate = require('Module:ISOdate')._ISOdate local Calendar = require('Module:Calendar')

-- ================================================== -- === Internal functions =========================== -- ==================================================

local function langSwitch(list,lang) local langList = mw.language.getFallbacksFor(lang) table.insert(langList,1,lang) table.insert(langList,math.max(#langList,2),'default') for i,language in ipairs(langList) do if list[language] then return list[language] end end end

local function formatnum1(numStr, lang) -- mostly require('Module:Formatnum').formatNum function used to translate a number to use different numeral characters, -- except that it it does not call that function unless the language is on the list "LList" local LList = {bn=1,bpy=1,kn=1,hi=1,mr=1,new=1,pa=1,gu=1,fa=1,glk=1,mzn=1,ur=1,ar=1,ckb=1,ks=1,lo=1,['or']=1,bo=1,['ml-old']=1,mn=1,te=1,th=1} if LList[lang] then -- call only when the language is on the list numStr = require('Module:Formatnum').formatNum(numStr, lang, 1) end return numStr end

local function getISODate(datestr, datetype, lang, num, case) -- translate dates in the format YYYY, YYYY-MM, and YYYY-MM-DD if not case and i18n.Translations[datetype] then -- look up the grammatical case needed and call ISOdate module local rec = langSwitch(i18n.Translations[datetype], lang) if type(rec)=='table' then case = rec.case[num] end end return ISOdate(datestr, lang, case, , 1) end

local function translatePhrase(date1, date2, operation, lang, state) -- use tables in Module:i18n/complex date to translate a phrase if not i18n.Translations[operation] then p.Error = string.format('Error in Module:Complex date: input parameter "%s" is not recognized.', operation or 'nil') return end local dateStr = langSwitch(i18n.Translations[operation], lang) if type(dateStr)=='table' then dateStr = dateStr[1] end if type(dateStr)=='function' then local success local nDates = i18n.Translations[operation]['nDates'] if nDates==2 then -- 2 date phrase success, dateStr = pcall(dateStr, date1, date2, state) else -- 1 date phrase success, dateStr = pcall(dateStr, 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.Translations[state.conj] then local rec = langSwitch(i18n.Translations[state.conj], lang) if type(rec)=='table' then case = rec.case end end date1 = oneDatePhrase(date1, state.adj1, state.era1, state.units1, lang, 1, case[1], state) date2 = oneDatePhrase(date2, state.adj2, state.era2, state.units2, lang, 2, case[2], 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 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 if operation == 'turn of the decade' then dt=10 else dt=1 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) elseif operation == 'unknown' then dateStr = tostring(mw.message.new( "exif-unknowndate" ):inLanguage( lang )) 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 a = i18n.Synonyms[str1] -- look up synonyms of "str1" if a then out = a[1] 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 ... a = i18n.Synonyms[str2] -- ..."str2" is of the same type and is not empty if a and a[2]==sType then out = a[1] 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 dateNum = tonumber(dateStr); 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<= 4 then precision=9 elseif sLen== 7 then precision=10 elseif 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<6 then return nil elseif era ~= then eraLUT = {ad='+', bc='-', bp='-' } era = eraLUT[era] else era='+' end

-- convert isodate to timestamp used by quick statements if 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'}

local refine = rLUT[adj] local qualitier = qLUT[adj]

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 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 = string.sub(d1,2,5) 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<9 then -- same year, since "+YYYY-" is in common cd = isodate2timestamp(year1, 9, state.era1) elseif k==4 then -- same decade(k=4, precision=8), since "+YYY" is in common cd = isodate2timestamp(year1, 8, state.era1) elseif k==3 then -- same century(k=3, precision=7) since "+YY" is in common local d = tostring(math.floor(tonumber(year1)/100) +1) -- convert 1999 -> 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(tonumber(year1)/1000) +1) -- convert 1999 -> 2 cd = isodate2timestamp( d, 6, state.era1) else 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' then outputStr = cd ..",P580,".. d1 ..",P582,".. d2 elseif state.conj=='between' then outputStr = cd ..",P1319,".. d1 ..",P1326,".. d2 elseif state.conj=='circa2' then outputStr = cd ..",P1319,".. d1 ..",P1326,".. d2 ..",P1480,Q5727902" end

return outputStr 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= 

   -- 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

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) state.adj, state.era, state.units, state.precision = state.adj1, state.era1, state.units1, state.precision1

-- 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(frame) 

   -- process inputs

local dateStr, Error 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 lang = args['lang']

dateStr = p._complex_date(conj, adj1, date1, units1, era1, adj2, date2, units2, era2, lang, 1) if p.Error~=nil then dateStr = p.Error .. end return dateStr end

return p

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