Moduuli:Wd:Complex date
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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:Wd:i18n/complex date')
local langSwitch = require('Module:Wd:Fallback')._langSwitch
local ISOdate = require('Module:Wd:ISOdate')._ISOdate
local Date = require('Module:Wd:Date')._Date
local formatnum = require('Module:Wd:Formatnum').formatNum
local linguistic = require('Module:Wd:Linguistic')
-- ==================================================
-- === Internal functions ===========================
-- ==================================================
function formatnum1(numStr, lang)
-- mostly require('Module:Wd: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 = formatnum(numStr, lang, 1)
end
return numStr
end
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
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 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
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
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
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
date1 = getISODate(date1, operation, lang, 1, nil)
date2 = getISODate(date2, operation, lang, 2, nil)
dateStr = translatePhrase(date1, date2, operation, lang, state)
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
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('<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 ...
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
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
-- ==================================================
-- === 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(frame)
-- process inputs
local dateStr, Error
local args = frame.args
if not (args.lang and mw.language.isSupportedLanguage(args.lang)) then
args.lang = mw.getCurrentFrame():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 .. '[[Category:Pages using Complex date template with incorrect parameter]]'
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
if state.special~='' then
Output = otherPhrases(date1, date2, state.special, state.era1, lang, state)
elseif state.conj~='' then
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)
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
return Output
end
return p