Module:Sandbox/Userring Explained

--Userring Google Code-in 2019, Introduction to Lua in Wikipedia--Lua Task 2 - Working with modules

local p =

function p.hello(frame) return "Hello, world!"end

p.Hi = function(frame) strName = frame.args.name or "Jimmy" return "Hello from Lua to my friend " .. strName .. ".
"end

function p.converttemp(frame) cels = tonumber(frame.args.celsius) or 0 fahr = ((cels * 9)/5) + 32 msg = "".. cels .." degrees Celsius is ".. fahr .." in degrees Fahrenheit." if cels > 9 then msg2 = "It is warm." else msg2 = "It is cold." end msg = msg .. msg2 return msgend

-- Task 4function p.timestable(frame) local numb = tonumber(frame.args.numb) or 2 local out = numb .. " Times table
" for i = 1, 12 do currentout = i * numb currentmsg = numb .. " times by " .. i .. " equals " .. currentout out = out .. currentmsg .. "
" end return outend

function p.people(frame) local friends = local msg = "The index iterating way:" .. "
" for i = 1, #friends do msg = msg .. "Hello " .. friends[i] .. "
" end msg = msg .. "
" .. "The ipairs way: " .. "
" for i, friend in ipairs(friends) do msg = msg .. "Hello " .. friends[i] .. "
" end return msgend

function p.sent(frame) local txt = frame.args.text or "" local cap = string.upper(string.sub(txt, 1, 1)) local uncap = string.sub(txt, 2) local out = cap .. uncap return outend

function p.unpack(frame) local dmy = frame.args.dmydate or "" local d, m, y = string.match(dmy, "(%d+) (%w+) (%d+)") return "Year = " .. y .. "
Day = " .. d .. "
Month = " .. mend

function p.langs(frame) local langslist = mw.language.fetchLanguageNames local out = "" local count = 0 for k, v in pairs(langslist) do out = out .. k .. " - " .. v .. "
" count = count + 1 end return out .. "
= " .. count .. " languages"end

function p.fallbacklangs(frame) local fallbacklangcode = frame.args.langcode local fallbacklanglist = mw.language.getFallbacksFor(fallbacklangcode) local fallbackout = "" for a, b in pairs(fallbacklanglist) do fallbackout = fallbackout .. a .." - " .. b .. "
" end return fallbackoutend

p.pgtitle = function(frame) local title = frame.args.title local ttlobj = mw.title.new(title) local txt = ttlobj.text return txtend

function p.pginfo(frame) local title = frame.args.title or "User:Userring" if title

nil or title

"" then title = "User:Userring" end local ttlobj = mw.title.new(title) if ttlobj

nil or ttlobj

"" then ttlobj = mw.title.new("User:Userring") end local txt = ttlobj.text local ex = ttlobj.exists local isr = ttlobj.isRedirect exout = " does not exist" isrout = " and is not a redirect" if ex

true then exout = " does exist" end if isr

true then isrout = " and is a redirect" end return txt .. exout .. isroutend

-- Get date

function p.getdate(frame) local qid = frame.args.qid local prop = frame.args.prop local valtbl = mw.wikibase.getBestStatements(qid, prop) local timestamp = valtbl[1].mainsnak.datavalue.value.time timestamp = string.sub(timestamp, 2, 11) return timestampend

function p.getfulldate(frame) local qid = frame.args.qid local prop = frame.args.prop local monthname = local valtbl = mw.wikibase.getBestStatements(qid, prop) local timestamp = valtbl[1].mainsnak.datavalue.value.time timestamp = string.sub(timestamp, 2, 11) local year = string.sub(timestamp, 1, 4) local month = monthname[tonumber(string.sub(timestamp, 6, 7))] local day = string.sub(timestamp, 9, 10) return day .." ".. month .. " " .. yearend

function p.getitem(frame) local qid = frame.args.qid local prop = frame.args.prop local valtbl = mw.wikibase.getBestStatements(qid, prop) local id = valtbl[1].mainsnak.datavalue.value.id local id_in_words = mw.wikibase.getLabel(id) return id_in_wordsendreturn p