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Module:Sort title
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local match = require("Module:String")._match local p = {} --[[ Local function which is used to return a number without commas. For example: 4,722 will become 4722. --]] local function cleanNumberFromCommas(title) return string.gsub(title, "(%d+)(,+)", "%1") end --[[ Local function which is used to check if the word is an article. Returns true if it is, false if it isn't. --]] local function isFirstWordAnArticle(word) word = string.lower(word) if (word == "a" or word == "an" or word == "the") then return true else return false end end --[[ Local function which is used to return the title without its disambiguation. --]] local function getTitleWithoutDisambiguation(title, disambiguation) local newTitle = string.gsub(title, "%(".. disambiguation .. "%)", "") return mw.text.trim(newTitle) end --[[ Local function which is used to return a title without its first word. --]] local function getTitleWithoutFirstWord(title) return mw.ustring.gsub(title, "^[^%s]*%s*", "") end --[[ Local function which is used to return the first word from a title. --]] local function getFirstWord(title) return match(title, "^[^%s]*", 1, 1, false, "") end --[[ Local function which is used to return a sort key for a specific part. --]] local function getSortKey(title, firstWord) local sortKey = title if (isFirstWordAnArticle(firstWord) and firstWord ~= title) then title = getTitleWithoutFirstWord(title) sortKey = title .. ", " .. firstWord end return sortKey end --[[ Local function which is used to return the disambiguation sort key. --]] local function getDisambiguationSortKey(disambiguation) if (disambiguation == "") then return "" end local firstWord = getFirstWord(disambiguation) local disambiguationSortKey = getSortKey(disambiguation, firstWord) return "(" .. disambiguationSortKey .. ")" end --[[ Local function which is used to return the disambiguation from a title. --]] local function getDisambiguation(title) local disambiguation = match(title, "%s%((.-)%)", 1, -1, false, "") if (disambiguation == "") then return "" else return disambiguation end end --[[ The main function. --]] local function _main(title) if (not title) then title = mw.title.getCurrentTitle().text end local firstWord = getFirstWord(title) local disambiguation = getDisambiguation(title) local disambiguationSortKey = getDisambiguationSortKey(disambiguation) title = getTitleWithoutDisambiguation(title, disambiguation) title = cleanNumberFromCommas(title) title = getSortKey(title, firstWord) local sortKey = title .. " " .. disambiguationSortKey return mw.text.trim(sortKey) end --[[ Public function which allows modules to retrieve a sort key. --]] function p._getSortKey() return _main(nil) end --[[ Public function which allows templates to retrieve a sort key. --]] function p.getSortKey(frame) return _main(nil) end --[[ Public function which allows templates to retrieve the sort key inside a DEFAULTSORT. --]] function p.getDefaultSort(frame) local sortKey = _main(nil) return frame:preprocess{text = "{{DEFAULTSORT:" .. sortKey .. "}}"} end --[[ Public function which is used for testing various names and not the current page name. --]] function p.testcases(frame) local getArgs = require('Module:Arguments').getArgs local args = getArgs(frame) return _main(args[1]) end return p
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