--- lam.pp

local pp = {}
local type = require "type"
local unpack = table.unpack or unpack

function pp.dump (x, lvl)
	lvl = lvl or 0
	local space = string.rep(" ", lvl)
	local output = ""
	--[[if getmetatable(x) and getmetatable(x).__tostring then
		output = output .. tostring(x)
		else]]if type.luatype(x) == "table" then
		local subo = ""
		for k,v in pairs(x) do
			if v == x then
				v = "self"
			else
				v = pp.dump(v, lvl+2)
			end
			subo = subo .. string.format("\n%s[%s] = %s,",
				(space.."  "), k, v)
		end
		output = output .. string.format("\n%s{%s\n%s}",
			space, subo, space)
	else
		output = output .. tostring(x)
	end
	return output
end

function pp.pp (x)
	print(pp.dump(x))
end

---
return pp