imported>Certes: For use in portals which display randomly selected "Did You Know?" entries

2018-07-25T16:07:18Z

For use in portals which display randomly selected "Did You Know?" entries

New page

local p = {}

-- Transclude randomly selected "Did you know?" entries
function p.main(frame)
-- args = { 1,2,... = page names, paragraphs = list e.g. "1,3-5", files = list, more = text}
local args = {} -- args[k] = frame.args[k] or frame:getParent().args[k] for all k in either (numeric or not)
for k, v in pairs(frame:getParent().args) do args[k] = v end
for k, v in pairs(frame.args) do args[k] = v end -- args from a Lua call have priority over parent args from template

-- Read the input page
local page = args[1] or error("No page name given")
local title = mw.title.new(page) or error("Missing input page " .. page)
local text = title:getContent() or error("No content for page " .. page)

-- Limit to the DYK section if present
local sectionstart = mw.ustring.find(text, "\n==''Did you know?'' articles==", 1, true)
if sectionstart then
local sectionend = mw.ustring.find(text, "\n==", sectionstart + 1, true) or -1
text = mw.ustring.sub(text, sectionstart, sectionend)
end

-- Parse the entries
entries = {}
for entry in mw.ustring.gmatch(text, "\n%*[.…%s]*([^\n]+)") do
if not mw.ustring.find(entry, "article's talk page missing blurb", 1, true) then
table.insert(entries, entry)
end
end

-- Swap some random entries into the first n positions
local n = math.min(#entries, args.count or 10) -- the number of entries to produce
math.randomseed(os.time())
for i = 1, n do
j = math.random(i, #entries)
entries[i], entries[j] = "*... " .. entries[j], entries[i]
end

-- Return the first n entries
text = table.concat(entries, "\n", 1, n)
return frame:preprocess(text)
end

return p

Module:Transclude DYK - Revision history

imported>Certes: For use in portals which display randomly selected "Did You Know?" entries