Module:SummarySnippet

Documentation for this module may be created at Module:SummarySnippet/doc

local p = {}

-- Trims whitespace from a string
local function trim(s)
	return s:match("^%s*(.-)%s*$")
end

function p.fromPage(frame)
	local page = frame.args[1]
	local length = tonumber(frame.args[2]) or 150

	if not page or page == '' then
		return "No page name provided."
	end

	local title = mw.title.new(page)
	if not title or not title.exists then
		return "Page not found: " .. page
	end

	local text = title:getContent()
	if not text then
		return "No content for page: " .. page
	end

	-- Strip templates and formatting
	text = mw.text.killMarkers(text)
	text = mw.ustring.gsub(text, '{{.-}}', '')
	text = mw.ustring.gsub(text, '%[%[.-%|', '')
	text = mw.ustring.gsub(text, '%[%[', '')
	text = mw.ustring.gsub(text, '%]%]', '')
	text = mw.ustring.gsub(text, "''+", "")
	text = text:gsub("\n", " ")
	text = text:gsub("%s+", " ")
	text = trim(text)

	if #text > length then
		return mw.ustring.sub(text, 1, length) .. "..."
	else
		return text
	end
end

return p