test.lua

local example = require("gameconf/example")

function print_r(t, name, indent)
    local tableList = {}
    local function table_r(t, name, indent, full)
        local id = not full and name or type(name) ~= "number" and tostring(name) or "[" .. name .. "]"
        local tag = indent .. id .. " = "
        local out = {} -- result
        if type(t) == "table" then
            if tableList[t] ~= nil then
                table.insert(out, tag .. "{} -- " .. tableList[t] .. " (self reference)")
            else
                tableList[t] = full and (full .. "." .. id) or id
                if next(t) then -- Table not empty
                    table.insert(out, tag .. "{")
                    for key, value in pairs(t) do
                        table.insert(out, table_r(value, key, indent .. "|  ", tableList[t]))
                    end
                    table.insert(out, indent .. "}")
                else
                    table.insert(out, tag .. "{}")
                end
            end
        else
            local val = type(t) ~= "number" and type(t) ~= "boolean" and '"' .. tostring(t) .. '"' or tostring(t)
            table.insert(out, tag .. val)
        end
        return table.concat(out, "\n")
    end
    return table_r(t, name or "Value", indent or "")
end

function pr(t, name)
    print(print_r(t, name))
end

pr(example)