Module:Wd

-- Original module located at en:Module:Wd, en:Module:Wd/i18n and en:Module:Wd/aliasesP.

local p = {} local arg = ... local i18n

function loadSubmodules(frame) local title

if frame then -- current module invoked by page/template, get its title from frame title = frame:getTitle() else -- current module included by other module, get its title from ... title = arg end

i18n = i18n or require(title .. "/i18n") p.aliasesP = p.aliasesP or mw.loadData(title .. "/aliasesP") end

p.valueCommands = { property = "property", properties = "properties", qualifier = "qualifier", qualifiers = "qualifiers", reference = "reference", references = "references" }

p.nameCommands = { label = "label", title = "title", alias = "alias", aliases = "aliases" }

p.flags = { linked = "linked", short = "short", raw = "raw", multilanguage = "multilanguage", unit = "unit", ------------- preferred = "preferred", normal = "normal", deprecated = "deprecated", best = "best", future = "future", current = "current", former = "former", edit = "edit", editAtEnd = "edit@end", mdy = "mdy", single = "single", sourced = "sourced" }

p.args = { eid = "eid" }

local aliasesQ = { percentage = "Q11229", prolepticJulianCalendar = "Q1985786", citeWeb = "Q5637226", citeQ = "Q22321052" }

local parameters = { property = "%p", qualifier = "%q", reference = "%r", alias = "%a", separator = "%s", general = "%x" }

local formats = { property = "%p[%s][%r]", qualifier = "%q[%s][%r]", reference = "%r", propertyWithQualifier = "%p[ (%q)][%s][%r]", alias = "%a[%s]" }

local hookNames = { -- {level_1, level_2} [parameters.property] = {"getProperty"}, [parameters.reference] = {"getReferences", "getReference"}, [parameters.qualifier] = {"getAllQualifiers"}, [parameters.qualifier.."\\d"] = {"getQualifiers", "getQualifier"}, [parameters.alias] = {"getAlias"} }

-- default value objects, should NOT be mutated but instead copied local defaultSeparators = { ["sep"] = {" "}, ["sep%s"] = {","}, ["sep%q"] = {"; "}, ["sep%q\\d"] = {", "}, ["sep%r"] = nil, -- none ["punc"] = nil -- none }

local rankTable = { ["preferred"] = 1, ["normal"] = 2, ["deprecated"] = 3 }

local Config = {} Config.__index = Config

-- allows for recursive calls function Config.new() local cfg = {} setmetatable(cfg, Config)

cfg.separators = { -- single value objects wrapped in arrays so that we can pass by reference ["sep"] = {copyTable(defaultSeparators["sep"])}, ["sep%s"] = {copyTable(defaultSeparators["sep%s"])}, ["sep%q"] = {copyTable(defaultSeparators["sep%q"])}, ["sep%r"] = {copyTable(defaultSeparators["sep%r"])}, ["punc"] = {copyTable(defaultSeparators["punc"])} }

cfg.entity = nil cfg.entityID = nil cfg.propertyID = nil cfg.propertyValue = nil cfg.qualifierIDs = {} cfg.qualifierIDsAndValues = {}

cfg.bestRank = true cfg.ranks = {true, true, false} -- preferred = true, normal = true, deprecated = false cfg.foundRank = #cfg.ranks cfg.flagBest = false cfg.flagRank = false

cfg.periods = {true, true, true} -- future = true, current = true, former = true cfg.flagPeriod = false

cfg.mdyDate = false cfg.singleClaim = false cfg.sourcedOnly = false cfg.editable = false cfg.editAtEnd = false

cfg.pageTitle = false

cfg.langCode = mw.language.getContentLanguage().code cfg.langName = mw.language.fetchLanguageName(cfg.langCode, cfg.langCode) cfg.langObj = mw.language.new(cfg.langCode)

cfg.states = {} cfg.states.qualifiersCount = 0 cfg.curState = nil

cfg.prefetchedRefs = nil

return cfg end

local State = {} State.__index = State

function State.new(cfg) local stt = {} setmetatable(stt, State)

stt.conf = cfg

stt.results = {}

stt.parsedFormat = {} stt.separator = {} stt.movSeparator = {} stt.puncMark = {}

stt.linked = false stt.rawValue = false stt.shortName = false stt.anyLanguage = false stt.unitOnly = false stt.singleValue = false

return stt end

function replaceAlias(id) if p.aliasesP[id] then id = p.aliasesP[id] end

return id end

function errorText(code, param) local text = i18n["errors"][code] if param then text = mw.ustring.gsub(text, "$1", param) end return text end

function throwError(errorMessage, param) error(errorText(errorMessage, param)) end

function replaceDecimalMark(num) return mw.ustring.gsub(num, "[.]", i18n['numeric']['decimal-mark'], 1) end

function replaceSpecialChar(chr) if chr == '_' then -- replace underscores with spaces return ' ' else return chr end end

function replaceSpecialChars(str) local chr local esc = false local strOut = ""

for i = 1, #str do chr = str:sub(i,i)

if not esc then if chr == '\\' then esc = true else strOut = strOut .. replaceSpecialChar(chr) end else strOut = strOut .. chr esc = false end end

return strOut end

function buildWikilink(target, label) if not label or target == label then return "" .. target .. "" else return "" .. label .. "" end end

-- used to make frame.args mutable, to replace #frame.args (which is always 0) -- with the actual amount and to simply copy tables function copyTable(tIn) if not tIn then return nil end

local tOut = {}

for i, v in pairs(tIn) do tOut[i] = v end

return tOut end

-- used to merge output arrays together; -- note that it currently mutates the first input array function mergeArrays(a1, a2) for i = 1, #a2 do a1[#a1 + 1] = a2[i] end

return a1 end

function split(str, del) local out = {} local i, j = str:find(del)

if i and j then out[1] = str:sub(1, i - 1) out[2] = str:sub(j + 1) else out[1] = str end

return out end

function parseWikidataURL(url) local id

if url:match('^http[s]?://') then id = split(url, "Q")

if id[2] then return "Q" .. id[2] end end

return nil end

function parseDate(dateStr, precision) precision = precision or "d"

local i, j, index, ptr local parts = {nil, nil, nil}

if dateStr == nil then return parts[1], parts[2], parts[3] -- year, month, day end

-- 'T' for snak values, '/' for outputs with '/Julian' attached i, j = dateStr:find("[T/]")

if i then dateStr = dateStr:sub(1, i-1) end

local from = 1

if dateStr:sub(1,1) == "-" then -- this is a negative number, look further ahead from = 2 end

index = 1 ptr = 1

i, j = dateStr:find("-", from)

if i then -- year parts[index] = tonumber(mw.ustring.gsub(dateStr:sub(ptr, i-1), "^\+(.+)$", "%1"), 10) -- remove '+' sign (explicitly give base 10 to prevent error)

if parts[index] == -0 then parts[index] = tonumber("0") -- for some reason, 'parts[index] = 0' may actually store '-0', so parse from string instead end

if precision == "y" then -- we're done return parts[1], parts[2], parts[3] -- year, month, day end

index = index + 1 ptr = i + 1

i, j = dateStr:find("-", ptr)

if i then -- month parts[index] = tonumber(dateStr:sub(ptr, i-1), 10)

if precision == "m" then -- we're done return parts[1], parts[2], parts[3] -- year, month, day end

index = index + 1 ptr = i + 1 end end

if dateStr:sub(ptr) ~= "" then -- day if we have month, month if we have year, or year parts[index] = tonumber(dateStr:sub(ptr), 10) end

return parts[1], parts[2], parts[3] -- year, month, day end

function datePrecedesDate(aY, aM, aD, bY, bM, bD) if aY == nil or bY == nil then return nil end aM = aM or 1 aD = aD or 1 bM = bM or 1 bD = bD or 1

if aY < bY then return true end

if aY > bY then return false end

if aM < bM then return true end

if aM > bM then return false end

if aD < bD then return true end

return false end

function getHookName(param, index) if hookNames[param] then return hookNames[param][index] elseif param:len() > 2 then return hookNames[param:sub(1, 2).."\\d"][index] else return nil end end

function alwaysTrue() return true end

-- The following function parses a format string. -- -- The example below shows how a parsed string is structured in memory. -- Variables other than 'str' and 'child' are left out for clarity's sake. -- -- Example: -- "A %p B [%s[%q1]] C [%r] D" -- -- Structure: -- [ -- { -- str = "A " -- }, -- { -- str = "%p" -- }, -- { -- str = " B ", -- child = -- [ -- { -- str = "%s", -- child = -- [ -- { -- str = "%q1" -- } -- ] -- } -- ] -- }, -- { -- str = " C ", -- child = -- [ -- { -- str = "%r" -- } -- ] -- }, -- { -- str = " D" -- } -- ] -- function parseFormat(str) local chr, esc, param, root, cur, prev, new local params = {}

local function newObject(array) local obj = {} -- new object obj.str = ""

array[#array + 1] = obj -- array{object} obj.parent = array

return obj end

local function endParam() if param > 0 then if cur.str ~= "" then cur.str = "%"..cur.str cur.param = true params[cur.str] = true cur.parent.req[cur.str] = true prev = cur cur = newObject(cur.parent) end param = 0 end end

root = {} -- array root.req = {} cur = newObject(root) prev = nil

esc = false param = 0

for i = 1, #str do chr = str:sub(i,i)

if not esc then if chr == '\\' then endParam() esc = true elseif chr == '%' then endParam() if cur.str ~= "" then cur = newObject(cur.parent) end param = 2 elseif chr == '[' then endParam() if prev and cur.str == "" then table.remove(cur.parent) cur = prev end cur.child = {} -- new array cur.child.req = {} cur.child.parent = cur cur = newObject(cur.child) elseif chr == ']' then endParam() if cur.parent.parent then new = newObject(cur.parent.parent.parent) if cur.str == "" then table.remove(cur.parent) end cur = new end else if param > 1 then param = param - 1 elseif param == 1 then if not chr:match('%d') then endParam() end end

cur.str = cur.str .. replaceSpecialChar(chr) end else cur.str = cur.str .. chr esc = false end

prev = nil end

endParam()

-- make sure that at least one required parameter has been defined if not next(root.req) then throwError("missing-required-parameter") end

-- make sure that the separator parameter "%s" is not amongst the required parameters if root.req[parameters.separator] then throwError("extra-required-parameter", parameters.separator) end

return root, params end

function sortOnRank(claims) local rankPos local ranks = {{}, {}, {}, {}} -- preferred, normal, deprecated, (default) local sorted = {}

for i, v in ipairs(claims) do rankPos = rankTable[v.rank] or 4 ranks[rankPos][#ranks[rankPos] + 1] = v end

sorted = ranks[1] sorted = mergeArrays(sorted, ranks[2]) sorted = mergeArrays(sorted, ranks[3])

return sorted end

-- if id == nil then item connected to current page is used function Config:getLabel(id, raw, link, short) local label = nil local title = nil local prefix= "" local lang

if not id then id = mw.wikibase.getEntityIdForCurrentPage()

if not id then return "" end end

id = id:upper() -- just to be sure

if raw then -- check if given id actually exists if mw.wikibase.getEntity(id) then label = id

if id:sub(1,1) == "P" then prefix = "Property:" end end

prefix = "d:" .. prefix

title = label -- may be nil else -- try short name first if requested if short then label = p._property({p.aliasesP.shortName, [p.args.eid] = id}) -- get short name

if label == "" then label = nil end end

-- get label if not label then label, lang = mw.wikibase.getLabelWithLang(id)

-- don't allow language fallback if lang ~= self.langCode then label = nil end end end

if not label then label = "" elseif link then -- build a link if requested if not title then if id:sub(1,1) == "Q" then title = mw.wikibase.sitelink(id) elseif id:sub(1,1) == "P" then -- properties have no sitelink, link to Wikidata instead title = id prefix = "d:Property:" end end

if title then label = buildWikilink(prefix .. title, label) end end

return label end

function Config:getEditIcon() local value = "" local prefix = "" local front = " " local back = ""

if self.entityID:sub(1,1) == "P" then prefix = "Property:" end

if self.editAtEnd then front = '' back = '' end

value = ""

return front .. value .. back end

-- used to create the final output string when it's all done, so that for references the -- function extensionTag("ref", ...) is only called when they really ended up in the final output function Config:concatValues(valuesArray) local outString = "" local j, skip

for i = 1, #valuesArray do -- check if this is a reference if valuesArray[i].refHash then j = i - 1 skip = false

-- skip this reference if it is part of a continuous row of references that already contains the exact same reference while valuesArray[j] and valuesArray[j].refHash do if valuesArray[i].refHash == valuesArray[j].refHash then skip = true break end j = j - 1 end

if not skip then -- add <ref> tag with the reference's hash as its name (to deduplicate references) outString = outString .. mw.getCurrentFrame():extensionTag("ref", valuesArray[i][1], {name = "wikidata-" .. valuesArray[i].refHash .. "-v" .. i18n['cite']['version']}) end else outString = outString .. valuesArray[i][1] end end

return outString end

function Config:convertUnit(unit, raw, link, short, unitOnly) local space = " " local label = ""

if unit == "" or unit == "1" then return nil end

if unitOnly then space = "" end

itemID = parseWikidataURL(unit)

if itemID then if itemID == aliasesQ.percentage then return "%" else label = self:getLabel(itemID, raw, link, short)

if label ~= "" then return space .. label end end end

return "" end

function Config:getValue(snak, raw, link, short, anyLang, unitOnly, noSpecial) if snak.snaktype == 'value' then local datatype = snak.datavalue.type local subtype = snak.datatype local datavalue = snak.datavalue.value

if datatype == 'string' then if subtype == 'url' and link then -- create link explicitly if raw then -- will render as a linked number like [1] return "[" .. datavalue .. "]" else return "[" .. datavalue .. " " .. datavalue .. "]" end elseif subtype == 'commonsMedia' then if link then return buildWikilink("c:File:" .. datavalue, datavalue) elseif not raw then return "File:" .. datavalue .. "" else return datavalue end elseif subtype == 'geo-shape' and link then return buildWikilink("c:" .. datavalue, datavalue) elseif subtype == 'math' and not raw then return mw.getCurrentFrame():extensionTag("math", datavalue) elseif subtype == 'external-id' and link then local url = p._property({p.aliasesP.formatterURL, [p.args.eid] = snak.property}) -- get formatter URL

if url ~= "" then url = mw.ustring.gsub(url, "$1", datavalue) return "[" .. url .. " " .. datavalue .. "]" else return datavalue end else return datavalue end elseif datatype == 'monolingualtext' then if anyLang then return datavalue['text'], datavalue['language'] elseif datavalue['language'] == self.langCode then return datavalue['text'] else return nil end elseif datatype == 'quantity' then local value = "" local unit

if not unitOnly then -- get value and strip + signs from front value = mw.ustring.gsub(datavalue['amount'], "^\+(.+)$", "%1")

if raw then return value end

-- replace decimal mark based on locale value = replaceDecimalMark(value)

-- add delimiters for readability value = i18n.addDelimiters(value) end

unit = self:convertUnit(datavalue['unit'], raw, link, short, unitOnly)

if unit then value = value .. unit end

return value elseif datatype == 'time' then local y, m, d, p, yDiv, yRound, yFull, value, calendarID, dateStr local yFactor = 1 local sign = 1 local prefix = "" local suffix = "" local mayAddCalendar = false local calendar = "" local precision = datavalue['precision']

if precision == 11 then p = "d" elseif precision == 10 then p = "m" else p = "y" yFactor = 10^(9-precision) end

y, m, d = parseDate(datavalue['time'], p)

if y < 0 then sign = -1 y = y * sign end

-- if precision is tens/hundreds/thousands/millions/billions of years if precision <= 8 then yDiv = y / yFactor

-- if precision is tens/hundreds/thousands of years if precision >= 6 then mayAddCalendar = true

if precision <= 7 then -- round centuries/millenniums up (e.g. 20th century or 3rd millennium) yRound = math.ceil(yDiv)

if not raw then if precision == 6 then suffix = i18n['datetime']['suffixes']['millennium'] else suffix = i18n['datetime']['suffixes']['century'] end

suffix = i18n.getOrdinalSuffix(yRound) .. suffix else -- if not verbose, take the first year of the century/millennium -- (e.g. 1901 for 20th century or 2001 for 3rd millennium) yRound = (yRound - 1) * yFactor + 1 end else -- precision == 8 -- round decades down (e.g. 2010s) yRound = math.floor(yDiv) * yFactor

if not raw then prefix = i18n['datetime']['prefixes']['decade-period'] suffix = i18n['datetime']['suffixes']['decade-period'] end end

if raw and sign < 0 then -- if BCE then compensate for "counting backwards" -- (e.g. -2019 for 2010s BCE, -2000 for 20th century BCE or -3000 for 3rd millennium BCE) yRound = yRound + yFactor - 1 end else local yReFactor, yReDiv, yReRound

-- round to nearest for tens of thousands of years or more yRound = math.floor(yDiv + 0.5)

if yRound == 0 then if precision <= 2 and y ~= 0 then yReFactor = 1e6 yReDiv = y / yReFactor yReRound = math.floor(yReDiv + 0.5)

if yReDiv == yReRound then -- change precision to millions of years only if we have a whole number of them precision = 3 yFactor = yReFactor yRound = yReRound end end

if yRound == 0 then -- otherwise, take the unrounded (original) number of years precision = 5 yFactor = 1 yRound = y mayAddCalendar = true end end

if precision >= 1 and y ~= 0 then yFull = yRound * yFactor

yReFactor = 1e9 yReDiv = yFull / yReFactor yReRound = math.floor(yReDiv + 0.5)

if yReDiv == yReRound then -- change precision to billions of years if we're in that range precision = 0 yFactor = yReFactor yRound = yReRound else yReFactor = 1e6 yReDiv = yFull / yReFactor yReRound = math.floor(yReDiv + 0.5)

if yReDiv == yReRound then -- change precision to millions of years if we're in that range precision = 3 yFactor = yReFactor yRound = yReRound end end end

if not raw then if precision == 3 then suffix = i18n['datetime']['suffixes']['million-years'] elseif precision == 0 then suffix = i18n['datetime']['suffixes']['billion-years'] else yRound = yRound * yFactor if yRound == 1 then suffix = i18n['datetime']['suffixes']['year'] else suffix = i18n['datetime']['suffixes']['years'] end end else yRound = yRound * yFactor end end else yRound = y mayAddCalendar = true end

if mayAddCalendar then calendarID = parseWikidataURL(datavalue['calendarmodel'])

if calendarID and calendarID == aliasesQ.prolepticJulianCalendar then if not raw then if link then calendar = " ("..buildWikilink(i18n['datetime']['julian-calendar'], i18n['datetime']['julian'])..")" else calendar = " ("..i18n['datetime']['julian']..")" end else calendar = "/"..i18n['datetime']['julian'] end end end

if not raw then local ce = nil

if sign < 0 then ce = i18n['datetime']['BCE'] elseif precision <= 5 then ce = i18n['datetime']['CE'] end

if ce then if link then ce = buildWikilink(i18n['datetime']['common-era'], ce) end suffix = suffix .. " " .. ce end

value = tostring(yRound)

if m then dateStr = self.langObj:formatDate("F", "1-"..m.."-1")

if d then if self.mdyDate then dateStr = dateStr .. " " .. d .. "," else dateStr = d .. " " .. dateStr end end

value = dateStr .. " " .. value end

value = prefix .. value .. suffix .. calendar else value = tostring(yRound * sign)

if m then value = value .. "-" .. m

if d then value = value .. "-" .. d end end

value = value .. calendar end

return value elseif datatype == 'globecoordinate' then -- logic from https://github.com/DataValues/Geo

local precision, numDigits, strFormat, value, globe local latValue, latitude, latDegrees, latMinutes, latSeconds local lonValue, longitude, lonDegrees, lonMinutes, lonSeconds local latDirection, latDirectionN, latDirectionS, latDirectionEN local lonDirection, lonDirectionE, lonDirectionW, lonDirectionEN

local latDirectionEN_N = "N" local latDirectionEN_S = "S" local lonDirectionEN_E = "E" local lonDirectionEN_W = "W"

if not raw then latDirectionN = i18n['coord']['latitude-north'] latDirectionS = i18n['coord']['latitude-south'] lonDirectionE = i18n['coord']['longitude-east'] lonDirectionW = i18n['coord']['longitude-west']

degSymbol = i18n['coord']['degrees'] minSymbol = i18n['coord']['minutes'] secSymbol = i18n['coord']['seconds'] separator = i18n['coord']['separator'] else latDirectionN = latDirectionEN_N latDirectionS = latDirectionEN_S lonDirectionE = lonDirectionEN_E lonDirectionW = lonDirectionEN_W

degSymbol = "/" minSymbol = "/" secSymbol = "/" separator = "/" end

latitude = datavalue['latitude'] longitude = datavalue['longitude']

if latitude < 0 then latDirection = latDirectionS latDirectionEN = latDirectionEN_S latitude = math.abs(latitude) else latDirection = latDirectionN latDirectionEN = latDirectionEN_N end

if longitude < 0 then lonDirection = lonDirectionW lonDirectionEN = lonDirectionEN_W longitude = math.abs(longitude) else lonDirection = lonDirectionE lonDirectionEN = lonDirectionEN_E end

precision = datavalue['precision']

latitude = math.floor(latitude / precision + 0.5) * precision longitude = math.floor(longitude / precision + 0.5) * precision

numDigits = math.ceil(-math.log10(3600 * precision))

if numDigits < 0 or numDigits == -0 then numDigits = tonumber("0") -- for some reason, 'numDigits = 0' may actually store '-0', so parse from string instead end

strFormat = "%." .. numDigits .. "f"

-- use string.format() to strip decimal point followed by a zero (.0) for whole numbers latSeconds = tonumber(strFormat:format(math.floor(latitude * 3600 * 10^numDigits + 0.5) / 10^numDigits)) lonSeconds = tonumber(strFormat:format(math.floor(longitude * 3600 * 10^numDigits + 0.5) / 10^numDigits))

latMinutes = math.floor(latSeconds / 60) lonMinutes = math.floor(lonSeconds / 60)

latSeconds = latSeconds - (latMinutes * 60) lonSeconds = lonSeconds - (lonMinutes * 60)

latDegrees = math.floor(latMinutes / 60) lonDegrees = math.floor(lonMinutes / 60)

latMinutes = latMinutes - (latDegrees * 60) lonMinutes = lonMinutes - (lonDegrees * 60)

latValue = latDegrees .. degSymbol lonValue = lonDegrees .. degSymbol

if precision < 1 then latValue = latValue .. latMinutes .. minSymbol lonValue = lonValue .. lonMinutes .. minSymbol end

if precision < (1 / 60) then latSeconds = strFormat:format(latSeconds) lonSeconds = strFormat:format(lonSeconds)

if not raw then -- replace decimal marks based on locale latSeconds = replaceDecimalMark(latSeconds) lonSeconds = replaceDecimalMark(lonSeconds) end

latValue = latValue .. latSeconds .. secSymbol lonValue = lonValue .. lonSeconds .. secSymbol end

latValue = latValue .. latDirection lonValue = lonValue .. lonDirection

value = latValue .. separator .. lonValue

if link then globe = parseWikidataURL(datavalue['globe'])

if globe then globe = mw.wikibase.getEntity(globe):getLabel("en"):lower() else globe = "earth" end

value = ""..self.langCode.."&params="..latitude.."_"..latDirectionEN.."_"..longitude.."_"..lonDirectionEN.."_globe:"..globe.." "..value.."" end

return value elseif datatype == 'wikibase-entityid' then local label local itemID = datavalue['numeric-id']

if subtype == 'wikibase-item' then itemID = "Q" .. itemID elseif subtype == 'wikibase-property' then itemID = "P" .. itemID else return '' end

label = self:getLabel(itemID, raw, link, short)

if label == "" then label = nil end

return label else return '' end elseif snak.snaktype == 'somevalue' and not noSpecial then if raw then return " " -- single space represents 'somevalue' else return i18n['values']['unknown'] end elseif snak.snaktype == 'novalue' and not noSpecial then if raw then return "" -- empty string represents 'novalue' else return i18n['values']['none'] end else return nil end end

function Config:getSingleRawQualifier(claim, qualifierID) local qualifiers

if claim.qualifiers then qualifiers = claim.qualifiers[qualifierID] end

if qualifiers and qualifiers[1] then return self:getValue(qualifiers[1], true) -- raw = true else return nil end end

function Config:snakEqualsValue(snak, value) local snakValue = self:getValue(snak, true) -- raw = true

if snakValue and snak.snaktype == 'value' and snak.datavalue.type == 'wikibase-entityid' then value = value:upper() end

return snakValue == value end

function Config:setRank(rank) local rankPos

if rank == p.flags.best then self.bestRank = true self.flagBest = true -- mark that 'best' flag was given return end

if rank:sub(1,9) == p.flags.preferred then rankPos = 1 elseif rank:sub(1,6) == p.flags.normal then rankPos = 2 elseif rank:sub(1,10) == p.flags.deprecated then rankPos = 3 else return end

-- one of the rank flags was given, check if another one was given before if not self.flagRank then self.ranks = {false, false, false} -- no other rank flag given before, so unset ranks self.bestRank = self.flagBest -- unsets bestRank only if 'best' flag was not given before self.flagRank = true -- mark that a rank flag was given end

if rank:sub(-1) == "+" then for i = rankPos, 1, -1 do self.ranks[i] = true end elseif rank:sub(-1) == "-" then for i = rankPos, #self.ranks do self.ranks[i] = true end else self.ranks[rankPos] = true end end

function Config:setPeriod(period) local periodPos

if period == p.flags.future then periodPos = 1 elseif period == p.flags.current then periodPos = 2 elseif period == p.flags.former then periodPos = 3 else return end

-- one of the period flags was given, check if another one was given before if not self.flagPeriod then self.periods = {false, false, false} -- no other period flag given before, so unset periods self.flagPeriod = true -- mark that a period flag was given end

self.periods[periodPos] = true end

function Config:processFlag(flag) if not flag then return false else flag = mw.text.trim(flag) end

if flag == p.flags.linked then self.curState.linked = true return true elseif flag == p.flags.raw then self.curState.rawValue = true

if self.curState == self.states[parameters.reference] then -- raw reference values end with periods and require a separator (other than none) self.separators["sep%r"][1] = {" "} end

return true elseif flag == p.flags.short then self.curState.shortName = true return true elseif flag == p.flags.multilanguage then self.curState.anyLanguage = true return true elseif flag == p.flags.unit then self.curState.unitOnly = true return true elseif flag == p.flags.mdy then self.mdyDate = true return true elseif flag == p.flags.single then self.singleClaim = true return true elseif flag == p.flags.sourced then self.sourcedOnly = true return true elseif flag == p.flags.edit then self.editable = true return true elseif flag == p.flags.editAtEnd then self.editable = true self.editAtEnd = true return true elseif flag == p.flags.best or flag:match('^'..p.flags.preferred..'[+-]?$') or flag:match('^'..p.flags.normal..'[+-]?$') or flag:match('^'..p.flags.deprecated..'[+-]?$') then self:setRank(flag) return true elseif flag == p.flags.future or flag == p.flags.current or flag == p.flags.former then self:setPeriod(flag) return true elseif flag == "" then -- ignore empty flags and carry on return true else return false end end

function Config:processFlagOrCommand(flag) local param = ""

if not flag then return false else flag = mw.text.trim(flag) end

if flag == p.valueCommands.property or flag == p.valueCommands.properties then param = parameters.property elseif flag == p.valueCommands.qualifier or flag == p.valueCommands.qualifiers then self.states.qualifiersCount = self.states.qualifiersCount + 1 param = parameters.qualifier .. self.states.qualifiersCount self.separators["sep"..param] = {copyTable(defaultSeparators["sep%q\\d"])} elseif flag == p.valueCommands.reference or flag == p.valueCommands.references then param = parameters.reference else return self:processFlag(flag) end

if self.states[param] then return false end

-- create a new state for each command self.states[param] = State.new(self)

-- use "%x" as the general parameter name self.states[param].parsedFormat = parseFormat(parameters.general) -- will be overwritten for param=="%p"

-- set the separator self.states[param].separator = self.separators["sep"..param] -- will be nil for param=="%p", which will be set separately

if flag:sub(-1) ~= 's' then self.states[param].singleValue = true end

self.curState = self.states[param]

return true end

function Config:qualifierMatches(claim, id, value) local qualifiers

if claim.qualifiers then qualifiers = claim.qualifiers[id] end if qualifiers then for i, v in pairs(qualifiers) do if self:snakEqualsValue(v, value) then return true end end elseif value == "" then -- if the qualifier is not present then treat it the same as the special value 'novalue' return true end

return false end

function Config:rankMatches(rankPos) if self.bestRank then return (self.ranks[rankPos] and self.foundRank >= rankPos) else return self.ranks[rankPos] end end

function Config:timeMatches(claim) local startTime = nil local startTimeY = nil local startTimeM = nil local startTimeD = nil local endTime = nil local endTimeY = nil local endTimeM = nil local endTimeD = nil

if self.periods[1] and self.periods[2] and self.periods[3] then -- any time return true end

local now = os.date('!*t')

startTime = self:getSingleRawQualifier(claim, p.aliasesP.startTime) if startTime and startTime ~= "" and startTime ~= " " then startTimeY, startTimeM, startTimeD = parseDate(startTime) end

endTime = self:getSingleRawQualifier(claim, p.aliasesP.endTime) if endTime and endTime ~= "" and endTime ~= " " then endTimeY, endTimeM, endTimeD = parseDate(endTime) elseif endTime == " " then -- end time is 'unknown', assume it is somewhere in the past; -- we can do this by taking the current date as a placeholder for the end time endTimeY = now['year'] endTimeM = now['month'] endTimeD = now['day'] end

if startTimeY ~= nil and endTimeY ~= nil and datePrecedesDate(endTimeY, endTimeM, endTimeD, startTimeY, startTimeM, startTimeD) then -- invalidate end time if it precedes start time endTimeY = nil endTimeM = nil endTimeD = nil end

if self.periods[1] then -- future if startTimeY and datePrecedesDate(now['year'], now['month'], now['day'], startTimeY, startTimeM, startTimeD) then return true end end

if self.periods[2] then -- current if (startTimeY == nil or not datePrecedesDate(now['year'], now['month'], now['day'], startTimeY, startTimeM, startTimeD)) and (endTimeY == nil or datePrecedesDate(now['year'], now['month'], now['day'], endTimeY, endTimeM, endTimeD)) then return true end end

if self.periods[3] then -- former if endTimeY and not datePrecedesDate(now['year'], now['month'], now['day'], endTimeY, endTimeM, endTimeD) then return true end end

return false end

-- determines if a claim has references by prefetching them from the claim using getReferences, -- which applies some filtering that determines if a reference is actually returned, -- and caches the references for later use function State:isSourced(claim) self.conf.prefetchedRefs = self:getReferences(claim) return (#self.conf.prefetchedRefs > 0) end

function State:resetCaches() -- any prefetched references of the previous claim must not be used self.conf.prefetchedRefs = nil end

function State:claimMatches(claim) local matches, rankPos

-- first of all, reset any cached values used for the previous claim self:resetCaches()

-- if a property value was given, check if it matches the claim's property value if self.conf.propertyValue then matches = self.conf:snakEqualsValue(claim.mainsnak, self.conf.propertyValue) else matches = true end

-- if any qualifier values were given, check if each matches one of the claim's qualifier values for i, v in pairs(self.conf.qualifierIDsAndValues) do matches = (matches and self.conf:qualifierMatches(claim, i, v)) end

-- check if the claim's rank and time period match rankPos = rankTable[claim.rank] or 4 matches = (matches and self.conf:rankMatches(rankPos) and self.conf:timeMatches(claim))

-- if only claims with references must be returned, check if this one has any if self.conf.sourcedOnly then matches = (matches and self:isSourced(claim)) -- prefetches and caches references end

return matches, rankPos end

function State:out() local result -- collection of arrays with value objects local valuesArray -- array with value objects local sep = nil -- value object local out = {} -- array with value objects

local function walk(formatTable, result) local valuesArray = {} -- array with value objects

for i, v in pairs(formatTable.req) do if not result[i] or not result[i][1] then -- we've got no result for a parameter that is required on this level, -- so skip this level (and its children) by returning an empty result return {} end end

for i, v in ipairs(formatTable) do if v.param then valuesArray = mergeArrays(valuesArray, result[v.str]) elseif v.str ~= "" then valuesArray[#valuesArray + 1] = {v.str} end

if v.child then valuesArray = mergeArrays(valuesArray, walk(v.child, result)) end end

return valuesArray end

-- iterate through the results from back to front, so that we know when to add separators for i = #self.results, 1, -1 do result = self.results[i]

-- if there is already some output, then add the separators if #out > 0 then sep = self.separator[1] -- fixed separator result[parameters.separator] = {self.movSeparator[1]} -- movable separator else sep = nil result[parameters.separator] = {self.puncMark[1]} -- optional punctuation mark end

valuesArray = walk(self.parsedFormat, result)

if #valuesArray > 0 then if sep then valuesArray[#valuesArray + 1] = sep end

out = mergeArrays(valuesArray, out) end end

-- reset state before next iteration self.results = {}

return out end

-- level 1 hook function State:getProperty(claim) local value = {self.conf:getValue(claim.mainsnak, self.rawValue, self.linked, self.shortName, self.anyLanguage, self.unitOnly)} -- create one value object

if #value > 0 then return {value} -- wrap the value object in an array and return it else return {} -- return empty array if there was no value end end

-- level 1 hook function State:getQualifiers(claim, param) local qualifiers

if claim.qualifiers then qualifiers = claim.qualifiers[self.conf.qualifierIDs[param]] end if qualifiers then -- iterate through claim's qualifier statements to collect their values; -- return array with multiple value objects return self.conf.states[param]:iterate(qualifiers, {[parameters.general] = hookNames[parameters.qualifier.."\\d"][2], count = 1}) -- pass qualifier state with level 2 hook else return {} -- return empty array end end

-- level 2 hook function State:getQualifier(snak) local value = {self.conf:getValue(snak, self.rawValue, self.linked, self.shortName, self.anyLanguage, self.unitOnly)} -- create one value object

if #value > 0 then return {value} -- wrap the value object in an array and return it else return {} -- return empty array if there was no value end end

-- level 1 hook function State:getAllQualifiers(claim, param, result, hooks) local out = {} -- array with value objects local sep = self.conf.separators["sep"..parameters.qualifier][1] -- value object

-- iterate through the output of the separate "qualifier(s)" commands for i = 1, self.conf.states.qualifiersCount do

-- if a hook has not been called yet, call it now if not result[parameters.qualifier..i] then self:callHook(parameters.qualifier..i, hooks, claim, result) end

-- if there is output for this particular "qualifier(s)" command, then add it if result[parameters.qualifier..i] and result[parameters.qualifier..i][1] then

-- if there is already some output, then add the separator if #out > 0 and sep then out[#out + 1] = sep end

out = mergeArrays(out, result[parameters.qualifier..i]) end end

return out end

-- level 1 hook function State:getReferences(claim) if self.conf.prefetchedRefs then -- return references that have been prefetched by isSourced return self.conf.prefetchedRefs end

if claim.references then -- iterate through claim's reference statements to collect their values; -- return array with multiple value objects return self.conf.states[parameters.reference]:iterate(claim.references, {[parameters.general] = hookNames[parameters.reference][2], count = 1}) -- pass reference state with level 2 hook else return {} -- return empty array end end

-- level 2 hook function State:getReference(statement) local lang, key, citeWeb, citeQ, label local langParams = {p.aliasesP.language, p.aliasesP.languageOfWorkOrName} local params = {} local citeParams = {['web'] = {}, ['q'] = {}} local citeMismatch = {} local useCite = nil local useParams = nil local value = "" local ref = {}

if statement.snaks then -- don't include "imported from", which is added by a bot if statement.snaks[p.aliasesP.importedFrom] then statement.snaks[p.aliasesP.importedFrom] = nil end

-- don't include languages that are equal to the local one for i, v in ipairs(langParams) do lang = self:getReferenceDetail(statement.snaks, v)

if self.conf.langName == lang then statement.snaks[v] = nil end end

-- retrieve all the parameters for i in pairs(statement.snaks) do label = ""

-- multiple authors may be given if i == p.aliasesP.author then params[i] = self:getReferenceDetails(statement.snaks, i, false, self.linked, true) -- link = true/false, anyLang = true else params[i] = {self:getReferenceDetail(statement.snaks, i, false, (self.linked or (i == p.aliasesP.statedIn)) and (statement.snaks[i][1].datatype ~= 'url'), true)} -- link = true/false, anyLang = true end

if #params[i] == 0 then params[i] = nil else if statement.snaks[i][1].datatype == 'external-id' then key = "external-id" label = self.conf:getLabel(i)

if label ~= "" then label = label .. " " end else key = i end

-- add the parameter to each matching type of citation for j in pairs(citeParams) do -- do so if there was no mismatch with a previous parameter if not citeMismatch[j] then -- check if this parameter is not mismatching itself if i18n['cite'][j][key] then -- continue if an option is available in the corresponding cite template if i18n['cite'][j][key] ~= "" then citeParams[j][i18n['cite'][j][key]] = label .. params[i][1]

-- if there are multiple parameter values (authors), add those too for k=2, #params[i] do citeParams[j][i18n['cite'][j][key]..k] = label .. params[i][k] end end else citeMismatch[j] = true end end end end end

-- get title of general template for citing web references citeWeb = split(mw.wikibase.sitelink(aliasesQ.citeWeb) or "", ":")[2] -- split off namespace from front

-- get title of template that expands stated-in references into citations citeQ = split(mw.wikibase.sitelink(aliasesQ.citeQ) or "", ":")[2] -- split off namespace from front

-- (1) use the general template for citing web references if there is a match and if at least both "reference URL" and "title" are present if citeWeb and not citeMismatch['web'] and citeParams['web'][i18n['cite']['web'][p.aliasesP.referenceURL]] and citeParams['web'][i18n['cite']['web'][p.aliasesP.title]] then useCite = citeWeb useParams = citeParams['web']

-- (2) use the template that expands stated-in references into citations if there is a match and if at least "stated in" is present elseif citeQ and not citeMismatch['q'] and citeParams['q'][i18n['cite']['q'][p.aliasesP.statedIn]] then -- we need the raw "stated in" Q-identifier for the this template citeParams['q'][i18n['cite']['q'][p.aliasesP.statedIn]] = self:getReferenceDetail(statement.snaks, p.aliasesP.statedIn, true) -- raw = true

useCite = citeQ useParams = citeParams['q'] end

if useCite and useParams then -- if this module is being substituted then build a regular template call, otherwise expand the template if mw.isSubsting() then for i, v in pairs(useParams) do value = value .. "|" .. i .. "=" .. v end

value = "Template:" .. useCite .. value .. "" else value = mw.getCurrentFrame():expandTemplate{title=useCite, args=useParams} end

-- (3) else, do some default rendering of name-value pairs, but only if at least "stated in", "reference URL" or "title" is present elseif params[p.aliasesP.statedIn] or params[p.aliasesP.referenceURL] or params[p.aliasesP.title] then citeParams['default'] = {}

-- start by adding authors up front if params[p.aliasesP.author] and #params[p.aliasesP.author] > 0 then citeParams['default'][#citeParams['default'] + 1] = table.concat(params[p.aliasesP.author], " & ") end

-- combine "reference URL" and "title" into one link if both are present if params[p.aliasesP.referenceURL] and params[p.aliasesP.title] then citeParams['default'][#citeParams['default'] + 1] = '[' .. params[p.aliasesP.referenceURL][1] .. ' "' .. params[p.aliasesP.title][1] .. '"]' elseif params[p.aliasesP.referenceURL] then citeParams['default'][#citeParams['default'] + 1] = params[p.aliasesP.referenceURL][1] elseif params[p.aliasesP.title] then citeParams['default'][#citeParams['default'] + 1] = '"' .. params[p.aliasesP.title][1] .. '"' end

-- then add "stated in" if params[p.aliasesP.statedIn] then citeParams['default'][#citeParams['default'] + 1] = "" .. params[p.aliasesP.statedIn][1] .. "" end

-- remove previously added parameters so that they won't be added a second time params[p.aliasesP.author] = nil params[p.aliasesP.referenceURL] = nil params[p.aliasesP.title] = nil params[p.aliasesP.statedIn] = nil

-- add the rest of the parameters for i, v in pairs(params) do i = self.conf:getLabel(i)

if i ~= "" then citeParams['default'][#citeParams['default'] + 1] = i .. ": " .. v[1] end end

value = table.concat(citeParams['default'], "; ")

if value ~= "" then value = value .. "." end end

if value ~= "" then value = {value} -- create one value object

if not self.rawValue then -- this should become a <ref> tag, so safe the reference's hash for later value.refHash = statement.hash end

ref = {value} -- wrap the value object in an array end end

return ref end

-- gets a detail of one particular type for a reference function State:getReferenceDetail(snaks, dType, raw, link, anyLang) local switchLang = anyLang local value = nil

if not snaks[dType] then return nil end

-- if anyLang, first try the local language and otherwise any language repeat for i, v in ipairs(snaks[dType]) do value = self.conf:getValue(v, raw, link, false, anyLang and not switchLang, false, true) -- noSpecial = true

if value then break end end

if value or not anyLang then break end

switchLang = not switchLang until anyLang and switchLang

return value end

-- gets the details of one particular type for a reference function State:getReferenceDetails(snaks, dType, raw, link, anyLang) local values = {}

if not snaks[dType] then return {} end

for i, v in ipairs(snaks[dType]) do -- if nil is returned then it will not be added to the table values[#values + 1] = self.conf:getValue(v, raw, link, false, anyLang, false, true) -- noSpecial = true end

return values end

-- level 1 hook function State:getAlias(object) local value = object.value local title = nil

if value and self.linked then if self.conf.entityID:sub(1,1) == "Q" then title = mw.wikibase.sitelink(self.conf.entityID) elseif self.conf.entityID:sub(1,1) == "P" then title = "d:Property:" .. self.conf.entityID end

if title then value = buildWikilink(title, value) end end

value = {value} -- create one value object

if #value > 0 then return {value} -- wrap the value object in an array and return it else return {} -- return empty array if there was no value end end

function State:callHook(param, hooks, statement, result) local valuesArray, refHash

-- call a parameter's hook if it has been defined and if it has not been called before if not result[param] and hooks[param] then valuesArray = self[hooks[param]](self, statement, param, result, hooks) -- array with value objects

-- add to the result if #valuesArray > 0 then result[param] = valuesArray result.count = result.count + 1 else result[param] = {} -- an empty array to indicate that we've tried this hook already return true -- miss == true end end

return false end

-- iterate through claims, claim's qualifiers or claim's references to collect values function State:iterate(statements, hooks, matchHook) matchHook = matchHook or alwaysTrue

local matches = false local rankPos = nil local result, gotRequired

for i, v in ipairs(statements) do -- rankPos will be nil for non-claim statements (e.g. qualifiers, references, etc.) matches, rankPos = matchHook(self, v)

if matches then result = {count = 0} -- collection of arrays with value objects

local function walk(formatTable) local miss

for i2, v2 in pairs(formatTable.req) do -- call a hook, adding its return value to the result miss = self:callHook(i2, hooks, v, result)

if miss then -- we miss a required value for this level, so return false return false end

if result.count == hooks.count then -- we're done if all hooks have been called; -- returning at this point breaks the loop return true end end

for i2, v2 in ipairs(formatTable) do if result.count == hooks.count then -- we're done if all hooks have been called; -- returning at this point prevents further childs from being processed return true end

if v2.child then walk(v2.child) end end

return true end gotRequired = walk(self.parsedFormat)

-- only append the result if we got values for all required parameters on the root level if gotRequired then -- if we have a rankPos (only with matchHook() for complete claims), then update the foundRank if rankPos and self.conf.foundRank > rankPos then self.conf.foundRank = rankPos end

-- append the result self.results[#self.results + 1] = result

-- break if we only need a single value if self.singleValue then break end end end end

return self:out() end

function extractEntityFromInput(id, allowUnknown) if id:sub(1,1):upper() == "Q" then return id:upper() elseif id:sub(1,9):lower() == "property:" then return replaceAlias(mw.text.trim(id:sub(10))):upper() -- entity ID of a property was given elseif allowUnknown and id ~= "" then return replaceAlias(id):upper() else return nil end end

function extractEntityFromArgs(args, nextIndex, handleUnknownPos) local id, eidArg

if args[nextIndex] then args[nextIndex] = mw.text.trim(args[nextIndex]) else args[nextIndex] = "" end

id = extractEntityFromInput(args[nextIndex], handleUnknownPos) eidArg = args[p.args.eid]

if id then return id, nextIndex + 1 elseif not eidArg then return mw.wikibase.getEntityIdForCurrentPage(), nextIndex -- by default, use item-entity connected to current page else return extractEntityFromInput(eidArg, true), nextIndex end end

function valueCommand(args, funcName) local _ = Config.new() _:processFlagOrCommand(funcName) -- process first command (== function name)

local parsedFormat, formatParams, claims, sep, value local hooks = {count = 0}

local nextIndex = 1

-- process flags and commands while _:processFlagOrCommand(args[nextIndex]) do nextIndex = nextIndex + 1 end

_.entityID, nextIndex = extractEntityFromArgs(args, nextIndex, false)

-- if eid was expliclty set to empty, then this returns an empty string if _.entityID == nil then return "" end

_.entity = mw.wikibase.getEntity(_.entityID) _.propertyID = replaceAlias(args[nextIndex]):upper() nextIndex = nextIndex + 1

if _.states.qualifiersCount > 0 then -- do further processing if "qualifier(s)" command was given

if #args - nextIndex + 1 > _.states.qualifiersCount then -- claim ID or literal value has been given

_.propertyValue = mw.text.trim(args[nextIndex]) nextIndex = nextIndex + 1 end

for i = 1, _.states.qualifiersCount do -- check if given qualifier ID is an alias and add it _.qualifierIDs[parameters.qualifier..i] = replaceAlias(mw.text.trim(args[nextIndex] or "")):upper() nextIndex = nextIndex + 1 end elseif _.states[parameters.reference] then -- do further processing if "reference(s)" command was given

if args[nextIndex] then _.propertyValue = mw.text.trim(args[nextIndex]) end -- not incrementing nextIndex because it is never used after this end

-- check for special property value 'somevalue' or 'novalue' if _.propertyValue then _.propertyValue = replaceSpecialChars(_.propertyValue)

if _.propertyValue ~= "" and mw.text.trim(_.propertyValue) == "" then _.propertyValue = " " -- single space represents 'somevalue', whereas empty string represents 'novalue' else _.propertyValue = mw.text.trim(_.propertyValue) end end

-- parse the desired format, or choose an appropriate format if args["format"] then parsedFormat, formatParams = parseFormat(args["format"]) elseif _.states.qualifiersCount > 0 then -- "qualifier(s)" command given if _.states[parameters.property] then -- "propert(y|ies)" command given parsedFormat, formatParams = parseFormat(formats.propertyWithQualifier) else parsedFormat, formatParams = parseFormat(formats.qualifier) end elseif _.states[parameters.property] then -- "propert(y|ies)" command given parsedFormat, formatParams = parseFormat(formats.property) else -- "reference(s)" command given parsedFormat, formatParams = parseFormat(formats.reference) end

-- if a "qualifier(s)" command and no "propert(y|ies)" command has been given, make the movable separator a semicolon if _.states.qualifiersCount > 0 and not _.states[parameters.property] then _.separators["sep"..parameters.separator][1] = {";"} end

-- if only "reference(s)" has been given, set the default separator to none (except when raw) if _.states[parameters.reference] and not _.states[parameters.property] and _.states.qualifiersCount == 0 and not _.states[parameters.reference].rawValue then _.separators["sep"][1] = nil end

-- if exactly one "qualifier(s)" command has been given, make "sep%q" point to "sep%q1" to make them equivalent; -- must come BEFORE overriding the separator values if _.states.qualifiersCount == 1 then _.separators["sep"..parameters.qualifier] = _.separators["sep"..parameters.qualifier.."1"] end

-- process overridden separator values; -- must come AFTER parsing the format for i, v in pairs(_.separators) do if args[i] then sep = replaceSpecialChars(args[i])

if sep ~= "" then _.separators[i][1] = {sep} else _.separators[i][1] = nil end end end

-- define the hooks that should be called (getProperty, getQualifiers, getReferences); -- only define a hook if both its command ("propert(y|ies)", "reference(s)", "qualifier(s)") and its parameter ("%p", "%r", "%q1", "%q2", "%q3") have been given for i, v in pairs(_.states) do -- e.g. 'formatParams["%q1"] or formatParams["%q"]' to define hook even if "%q1" was not defined to be able to build a complete value for "%q" if formatParams[i] or formatParams[i:sub(1, 2)] then hooks[i] = getHookName(i, 1) hooks.count = hooks.count + 1 end end

-- the "%q" parameter is not attached to a state, but is a collection of the results of multiple states (attached to "%q1", "%q2", "%q3", ...); -- so if this parameter is given then this hook must be defined separately, but only if at least one "qualifier(s)" command has been given if formatParams[parameters.qualifier] and _.states.qualifiersCount > 0 then hooks[parameters.qualifier] = getHookName(parameters.qualifier, 1) hooks.count = hooks.count + 1 end

-- create a state for "properties" if it doesn't exist yet, which will be used as a base configuration for each claim iteration; -- must come AFTER defining the hooks if not _.states[parameters.property] then _.states[parameters.property] = State.new(_)

-- if the "single" flag has been given then this state should be equivalent to "property" (singular) if _.singleClaim then _.states[parameters.property].singleValue = true end end

-- if the "sourced" flag has been given then create a state for "reference" if it doesn't exist yet, using default values, -- which must exist in order to be able to determine if a claim has any references; -- must come AFTER defining the hooks if _.sourcedOnly and not _.states[parameters.reference] then _:processFlagOrCommand(p.valueCommands.reference) -- use singular "reference" to minimize overhead end

-- set the parsed format and the separators (and optional punctuation mark) _.states[parameters.property].parsedFormat = parsedFormat _.states[parameters.property].separator = _.separators["sep"] _.states[parameters.property].movSeparator = _.separators["sep"..parameters.separator] _.states[parameters.property].puncMark = _.separators["punc"]

-- process qualifier matching values, analogous to _.propertyValue for i, v in pairs(args) do i = tostring(i)

if i:match('^[Pp]%d+$') or p.aliasesP[i] then v = replaceSpecialChars(v)

-- check for special qualifier value 'somevalue' if v ~= "" and mw.text.trim(v) == "" then v = " " -- single space represents 'somevalue' end

_.qualifierIDsAndValues[replaceAlias(i):upper()] = v end end

if _.entity and _.entity.claims then claims = _.entity.claims[_.propertyID] end if claims then -- first sort the claims on rank to pre-define the order of output (preferred first, then normal, then deprecated) claims = sortOnRank(claims)

-- then iterate through the claims to collect values value = _:concatValues(_.states[parameters.property]:iterate(claims, hooks, State.claimMatches)) -- pass property state with level 1 hooks and matchHook

-- if desired, add a clickable icon that may be used to edit the returned values on Wikidata if _.editable and value ~= "" then value = value .. _:getEditIcon() end

return value else return "" end end

function nameCommand(args, funcName) local _ = Config.new() _.curState = State.new(_)

local value = nil local nextIndex = 1

while _:processFlag(args[nextIndex]) do nextIndex = nextIndex + 1 end

_.entityID, nextIndex = extractEntityFromArgs(args, nextIndex, true)

-- if eid was expliclty set to empty, then this returns an empty string if _.entityID == nil then return "" end

-- serve according to the given command if funcName == p.nameCommands.label then value = _:getLabel(_.entityID, _.curState.rawValue, _.curState.linked, _.curState.shortName) elseif funcName == p.nameCommands.title then _.pageTitle = true

if _.entityID:sub(1,1) == "Q" then value = mw.wikibase.sitelink(_.entityID) end

if _.curState.linked and value then value = buildWikilink(value) end elseif funcName == p.nameCommands.alias or funcName == p.nameCommands.aliases then local aliases, parsedFormat, formatParams, sep local hooks = {count = 0}

if funcName == p.nameCommands.alias then _.curState.singleValue = true end

-- parse the desired format, or parse the default aliases format if args["format"] then parsedFormat, formatParams = parseFormat(args["format"]) else parsedFormat, formatParams = parseFormat(formats.alias) end

-- process overridden separator values; -- must come AFTER parsing the format for i, v in pairs(_.separators) do if args[i] then sep = replaceSpecialChars(args[i])

if sep ~= "" then _.separators[i][1] = {sep} else _.separators[i][1] = nil end end end

-- define the hook that should be called (getAlias); -- only define the hook if the parameter ("%a") has been given if formatParams[parameters.alias] then hooks[parameters.alias] = getHookName(parameters.alias, 1) hooks.count = hooks.count + 1 end

-- set the parsed format and the separators (and optional punctuation mark) _.curState.parsedFormat = parsedFormat _.curState.separator = _.separators["sep"] _.curState.movSeparator = _.separators["sep"..parameters.separator] _.curState.puncMark = _.separators["punc"]

_.entity = mw.wikibase.getEntity(_.entityID)

if _.entity and _.entity.aliases then aliases = _.entity.aliases[_.langCode] end if aliases then value = _:concatValues(_.curState:iterate(aliases, hooks)) end end

value = value or ""

if _.editable and value ~= "" then -- if desired, add a clickable icon that may be used to edit the returned value on Wikidata value = value .. _:getEditIcon() end

return value end

-- modules that include this module should call the functions with an underscore prepended, e.g.: p._property(args) function establishCommands(commandList, commandFunc) for commandIndex, commandName in pairs(commandList) do local function wikitextWrapper(frame) loadSubmodules(frame) return commandFunc(copyTable(frame.args), commandName) end p[commandName] = wikitextWrapper

local function luaWrapper(args) loadSubmodules() return commandFunc(args, commandName) end p["_" .. commandName] = luaWrapper end end

establishCommands(p.valueCommands, valueCommand) establishCommands(p.nameCommands, nameCommand)

-- main function that is supposed to be used by wrapper templates function p.main(frame) local f, args, i, v

loadSubmodules(frame)

-- get the parent frame to take the arguments that were passed to the wrapper template frame = frame:getParent() or frame

if not frame.args[1] then throwError("no-function-specified") end

f = mw.text.trim(frame.args[1])

if f == "main" then throwError("main-called-twice") end

assert(p["_"..f], errorText('no-such-function', f))

-- copy arguments from immutable to mutable table args = copyTable(frame.args)

-- remove the function name from the list table.remove(args, 1)

return p["_"..f](args) end

return p