DoomBot: load_modules: sync

2026-05-31T20:42:47Z

load_modules: sync

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-- Module:RandomLine
-- Returns one line from a page, rotating every 12 hours.
-- Usage: {{#invoke:RandomLine|line|Page name}}

local M = {}

-- 12-hour window index (changes at 00:00 and 12:00 UTC).
local function window()
return math.floor(os.time() / 43200)
end

function M.line(frame)
local page_name = mw.text.trim(frame.args[1] or "")
if page_name == "" then
return 'RandomLine: page name required'
end

local title = mw.title.new(page_name)
if not title then
return 'RandomLine: invalid page name'
end

local content = title:getContent()
if not content or content == "" then
return 'RandomLine: page not found or empty'
end

local lines = {}
for line in content:gmatch("[^\n]+") do
local trimmed = mw.text.trim(line)
if trimmed ~= "" and not trimmed:match("^==") then
table.insert(lines, trimmed)
end
end

if #lines == 0 then
return 'RandomLine: no non-empty lines found'
end

math.randomseed(window())
math.random() -- discard first value; Lua LCG has weak low bits on seed
return lines[math.random(#lines)]
end

return M

Module:RandomLine - Revision history

DoomBot: load_modules: sync