Module:Sandbox/RexxS explained

-- This is here as a placeholder.-- It is to demonstrate to Google-Code-in students what the module sandbox is.

local p =

function p.cats(frame) local title = frame.args.title or "" local ttlobj = mw.title.new(title, 14) if ttlobj then local cont = ttlobj:getContent if cont then return cont:sub(1, 100000) end endend

function p.namespaces(frame) local ns = mw.site.namespaces local msg = "" for k, v in pairs(ns) do msg = msg .. k .. " = " .. v.name .. "
" end return msgend

p.roundto = function(frame) local x = tonumber(frame.args.x) or 0 local sf = tonumber(frame.args.sf) or 0 if x

0 then return 0 end local s = 1 if x < 0 then x = -x s = -1 end if sf < 1 then sf = 1 end local p = 10 ^ (math.floor(math.log10(x)) - sf + 1) x = math.floor(x / p + 0.5) * p * s -- if it's integral, cast to an integer: --if x

math.floor(x) then x = math.floor(x) end return xend

return p