Module:Sandbox/roguxivlo1101 explained

--roguxivlo1101 Google Code-in 2019, Introduction to Lua in Wikipedia--Lua Task 2 - Working with moduleslocal 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 .. " degrees Fahrenheit." if cels > 9 then msg = msg .. " It is warm." else msg = msg .. " It is cold." end return msgend

-- Task 4

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

function p.people(frame) local friends = local msg = "" for i =1,#friends do msg = msg .. "Hello " .. friends[i] .. "
" end return msgend

-- Task 5

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

-- Task 6

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 code = frame.args.langcode local langs = mw.language.getFallbacksFor(code) local out="" for i = 1,#langs do out = out .. langs[i] .. " " end out = out .. "
" return outend

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

p.pginfo = function(frame) local tt = frame.args.title or "" local ttlobj = mw.title.new(tt) if ttlobj

nil then return "Invalid or missing parameter." else local out = tt if ttlobj.exists then out = out .. " exists and is " else out = out .. " does not exist and is not a redirect" return out end if ttlobj.isRedirect then out = out .. "a redirect" else out = out .. "not a redirect" end return out endend

-- Task 7-- 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 local date = string.match(timestamp, "(%d+.%d+.%d+)") return dateend

function p.getfulldate(frame) local monthname = 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 local year, month, day = string.match(timestamp, "(%d+)-(%d+)-(%d+)") local fulldate = day .. " " .. monthname[tonumber(month)] .. " " .. year return fulldateend

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 label = mw.wikibase.getLabel(id) return labelendreturn p