Module:Complex date
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Usage
This module is intended for processing of date strings. It is used by Module:WikidataIB
Complex date
This function is the engine behind c:template:Complex date. Please see that template for full documentation
Usage:
- should not be used directly but only through c:Template:Other date and other templates
{{#invoke:Complex_date|complex_date|adj1=|date1=|era1=|precision1=|conj=-|adj2=|date2=|era2=|precision2=|lang=}}
or
{{#invoke:Complex_date|complex_date|1=|2=|3=|era=|lang=}}
Parameters (simple syntax):
- 1
- option. See c:Template:Other date
- 2
- date #1
- 3
- date #2
Parameters (advanced syntax):
- conj
- in case the link between the two dates: "-" (from-until), between, or, and (see c:template:Complex date)
- adj1, adj2
- adjectives and prepositions used to describe single date. Possible values: early, mid, late, spring, summer, fall, winter, 1st half, 2nd half, 1st quarter, 2nd quarter, 3rd quarter, 4th quarter, etc. used for describing which part of date1 and date2 are involved (see c:template:Complex date)
- date1, date2
- the dates involved. Format: Number or whatever {{ISOdate}} takes.
- precision1, precision1
- usually year or more precise (default), but can also be decade, century or millennium, then the dates involved are centuries or millennia rather than specific dates
- era1, era2
- the eras that those dates are from (see c:template:Complex date) If parameter
erais present, it overrides these two parameters.
The internationalization of the date formats can be found at Module:I18n/complex date
Dependencies
Module:Complex_date relies on the following modules:
- Module:Calendar (lazy loading with no dependencies)
- Module:ISOdate
- Module:DateI18n (no dependencies)
- Module:No globals (from en.wikipedia)
- Module:DateI18n (no dependencies)
- Module:i18n/complex date
- Module:Ordinal-cd (lazy loading)
- Module:I18n/ordinal (no dependencies)
- Module:Yesno (from en.wikipedia) (no dependencies)
- Module:Formatnum (no dependencies)
- Module:Roman-cd (lazy loading with no dependencies)
- Module:Linguistic (lazy loading with no dependencies)
- Module:No globals (from en.wikipedia)
- Module:Ordinal-cd (lazy loading)
Several of the lazy-loaded dependencies do not exist locally since none of the code that calls them ever ends up used on the English Wikipedia.
Unless otherwise noted, the authoritative version of each module can be found on Commons.
- Commons
- c:Module:Complex_date
- c:Module:Calendar
- c:Module:ISOdate
- c:Module:DateI18n
- c:Module:i18n/complex date
- c:Module:Ordinal
- c:Module:I18n/ordinal
- c:Module:Formatnum
- c:Module:Roman
- c:Module:Linguistic
- English Wikipedia
- en:Module:Yesno
- en:Module:No globals
--[[
__ __ _ _ ____ _ _
| \/ | ___ __| |_ _| | ___ _ / ___|___ _ __ ___ _ __ | | _____ __ __| | __ _| |_ ___
| |\/| |/ _ \ / _` | | | | |/ _ (_) | / _ \| '_ ` _ \| '_ \| |/ _ \ \/ / / _` |/ _` | __/ _ \
| | | | (_) | (_| | |_| | | __/_| |__| (_) | | | | | | |_) | | __/> < | (_| | (_| | || __/
|_| |_|\___/ \__,_|\__,_|_|\___(_)\____\___/|_| |_| |_| .__/|_|\___/_/\_\ \__,_|\__,_|\__\___|
|_|
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') -- used for translations of date related phrases
local ISOdate = require('Module:ISOdate')._ISOdate -- used for parsing dates in YYYY-MM-DD and related formats
local Calendar -- loaded lazily
-- ==================================================
-- === 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('<span style="background-color:red;">Error in [[Module:Complex date]]: input parameter "%s" is not recognized.</span>', 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 dateFunc = dateStr
local nDates = i18n.Translations[operation]['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.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
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) .. '<div style="display: none;">Unknown date</div>'
elseif operation == 'unknown' then
dateStr = tostring(mw.message.new( "exif-unknowndate" ):inLanguage( lang )) .. '<div style="display: none;">Unknown date</div>'
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.Synonyms[str1] -- look up synonyms of "str1"
if a then
out = a[1]
else
p.Error = string.format('<span style="background-color:red;">Error in [[Module:Complex date]]: %s is not recognized.</span>', str1)
end
elseif str2 and str2~='' then -- if "str1" of type "sType" is empty than maybe ...
local 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 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<= 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
local 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', ['by']='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 '' -- 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<9 then -- same year, since "+YYYY-" is in common
cd = isodate2timestamp(tostring(year1), 9, state.era1)
elseif k==4 then -- same decade(k=4, precision=8), since "+YYY" is in common
cd = isodate2timestamp(tostring(year1), 8, state.era1)
elseif k==3 then -- same century(k=3, precision=7) since "+YY" is in common
local d = tostring(math.floor(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(year1/1000) +1) -- convert 1999 -> 2
cd = isodate2timestamp( d, 6, state.era1)
end
if not cd then
return ''
end
--if not cd then
-- return ' <br/>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 = ' <div style="display: none;">date QS:P,' .. QScode .. '</div>'
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 LUT[certainty] 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, '(%<div style="display: none;"%>date QS:P,[^%<]+)(%</div%>)', '%1,P1480,' .. LUT[certainty] .. '%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 .. '[[Category:Pages using Complex date template with incorrect parameter]]'
end
return dateStr
end
return p
