Created
June 2, 2016 21:46
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local filesystem = require("filesystem") | |
local serialization = {} | |
------------------------------------------------- Private methods ----------------------------------------------------------------- | |
local function doSerialize(array, text, prettyLook, indentationSymbol, oldIndentationSymbol, equalsSymbol) | |
text = {"{"} | |
table.insert(text, (prettyLook and "\n" or nil)) | |
for key, value in pairs(array) do | |
local keyType, valueType, stringValue = type(key), type(value), tostring(value) | |
if keyType == "number" or keyType == "string" then | |
table.insert(text, (prettyLook and indentationSymbol or nil)) | |
table.insert(text, "[") | |
table.insert(text, (keyType == "string" and table.concat({"\"", key, "\""}) or key)) | |
table.insert(text, "]") | |
table.insert(text, equalsSymbol) | |
if valueType == "number" or valueType == "boolean" or valueType == "nil" then | |
table.insert(text, stringValue) | |
elseif valueType == "string" or valueType == "function" then | |
table.insert(text, "\"") | |
table.insert(text, stringValue) | |
table.insert(text, "\"") | |
elseif valueType == "table" then | |
table.insert(text, table.concat(doSerialize(value, text, prettyLook, table.concat({indentationSymbol, indentationSymbol}), table.concat({oldIndentationSymbol, indentationSymbol}), equalsSymbol))) | |
else | |
error("Unsupported table value type: " .. valueType) | |
end | |
table.insert(text, ",") | |
table.insert(text, (prettyLook and "\n" or nil)) | |
else | |
error("Unsupported table key type: " .. keyType) | |
end | |
end | |
table.remove(text, (prettyLook and #text - 1 or #text)) | |
table.insert(text, (prettyLook and oldIndentationSymbol or nil)) | |
table.insert(text, "}") | |
return text | |
end | |
------------------------------------------------- Public methods ----------------------------------------------------------------- | |
function serialization.serialize(array, prettyLook, indentationWidth, indentUsingTabs) | |
checkArg(1, array, "table") | |
indentationWidth = indentationWidth or 2 | |
local indentationSymbol = indentUsingTabs and " " or " " | |
indentationSymbol, indentationSymbolHalf = string.rep(indentationSymbol, indentationWidth) | |
return table.concat(doSerialize(array, {}, prettyLook, indentationSymbol, "", prettyLook and " = " or "=")) | |
end | |
function serialization.unserialize(serializedString) | |
checkArg(1, serializedString, "string") | |
local success, result = pcall(load("return " .. serializedString)) | |
if success then return result else return nil, result end | |
end | |
function serialization.serializeToFile(path, array, prettyLook, indentationWidth, indentUsingTabs, appendToFile) | |
checkArg(1, path, "string") | |
checkArg(2, array, "table") | |
filesystem.makeDirectory(filesystem.path(path) or "") | |
local file = io.open(path, appendToFile and "a" or "w") | |
file:write(serialization.serialize(array, prettyLook, indentationWidth, indentUsingTabs)) | |
file:close() | |
end | |
function serialization.unserializeFromFile(path) | |
checkArg(1, path, "string") | |
if filesystem.exists(path) then | |
if filesystem.isDirectory(path) then | |
error("\"" .. path .. "\" is a directory") | |
else | |
local file = io.open(path, "r") | |
local data = serialization.unserialize(file:read("*a")) | |
file:close() | |
return data | |
end | |
else | |
error("\"" .. path .. "\" doesn't exists") | |
end | |
end | |
---------------------------------------------------------------------------------------------------------------------- | |
return serialization | |
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