Module:Acrostic

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Logic for {{acrostic}}.

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local p = {}
local getArgs = require("Module:Arguments").getArgs

function p._main(arg) 
	s = arg[1]
	s = mw.text.split(s, "\n", true)
	i = 0
	for k, v in pairs(s) do
		if #v > 1 then
			if arg[2] then
				if i % tonumber(arg[2]) == 0 then 
					s[k] = "'''" .. mw.ustring.sub(v, 1, 1) .. "'''" .. mw.ustring.sub(v, 2)
				end
			end
			i = i + 1
		end
	end
	return table.concat(s, "\n")
end

function p.main(frame)
	local args = getArgs(frame)
	return p._main(args)
end

return p