Open-Terrarium/tserial.lua
2017-06-22 02:27:43 -04:00

35 lines
1.2 KiB
Lua

-- TSerial v1.23, a simple table serializer which turns tables into Lua script
-- by Taehl (SelfMadeSpirit@gmail.com)
-- Usage: table = TSerial.unpack( TSerial.pack(table) )
TSerial = {}
function TSerial.pack(t)
assert(type(t) == "table", "Can only TSerial.pack tables.")
local s = "{"
for k, v in pairs(t) do
local tk, tv = type(k), type(v)
if tk == "boolean" then k = k and "[true]" or "[false]"
elseif tk == "string" then if string.find(k, "[%c%p%s]") then k = '["'..k..'"]' end
elseif tk == "number" then k = "["..k.."]"
elseif tk == "table" then k = "["..TSerial.pack(k).."]"
else error("Attempted to Tserialize a table with an invalid key: "..tostring(k))
end
if tv == "boolean" then v = v and "true" or "false"
elseif tv == "string" then v = string.format("%q", v)
elseif tv == "number" then -- no change needed
elseif tv == "table" then v = TSerial.pack(v)
else error("Attempted to Tserialize a table with an invalid value: "..tostring(v))
end
s = s..k.."="..v..","
end
return s.."}"
end
function TSerial.unpack(s)
assert(type(s) == "string", "Can only TSerial.unpack strings.")
assert(loadstring("TSerial.table="..s))()
local t = TSerial.table
TSerial.table = nil
return t
end