luadata

luadata

This is a npm package that can serialize array and object to Lua table, or unserialize Lua table to array and object.

Install

$ npm install

$ npm run dev
$ npm run build

Usage

serialize

Serialize javascript variable to lua data string.

import * as luadata from 'luadata';

const v = {
  some: 'luadata',
};
luadata.serializer.serialize(v); // '{some="luadata"}'

serialize.indent

Control if stringified data should be human-read formatted.

import * as luadata from 'luadata';

const v = {
  some: 'luadata',
};
luadata.serializer.serialize(v, { indent: "    " });

Output

{
    some = "luadata",
}

serialize.indentLevel

Control stringified data should be human-read formatted at which level, notice that first line will not be automatic indented.

import * as luadata from 'luadata';

const v = {
  some: 'luadata',
};
luadata.serializer.serialize(v, { indent: "    ", indentLevel: 1 });

Output

{
        some = "luadata",
    }

serialize.tuple

Control if the stringified data is a multi-value luadata.

import * as luadata from 'luadata';

const v = [
  'This is a tuple',
  { a: 1 },
];
luadata.serializer.serialize(v, { tuple: true }); // 'This is a tuple',{a=1}

unserialize

Unserialize lua data string to javascript variable.

import * as luadata from 'luadata';

const luadata_str = "{a=1,b=2,3}";

luadata.serializer.unserialize(luadata_str); // new Map([["a", 1], ["b", 2], [1, 3]])
luadata.serializer.unserialize(luadata_str, { dictType: 'object' }); // { a: 1, b: 2, 3: 3 }

unserialize.tuple

Control if the lua data string is a tuple variable.

import * as luadata from 'luadata';

const luadata_str = "'This is a tuple',1,false";

luadata.serializer.unserialize(luadata_str, { tuple: true }); // ['This is a tuple', 1, false]

unserialize.dictType

Control how will the luadata table will be transformed into javascript variable. Due to javascript limitation that javascript object key must be string or symbol, object mode will cause data/typing loss.

import * as luadata from 'luadata';

const luadata_str = "{a=1,b=2,['3']='three',[3]=3}";

luadata.serializer.unserialize(luadata_str, { dictType: 'map' }); // new Map([["a", 1], ["b", 2], ["3", "three"], [3, 3]])
luadata.serializer.unserialize(luadata_str, { dictType: 'object' }); // { a: 1, b: 2, 3: 3 }

unserialize.global

Provide luadata _G environment, supports both object like or map like. Due to javascript limitation that javascript object key must be string or symbol, object mode will cause data/typing loss.

import * as luadata from 'luadata';

luadata.serializer.unserialize("a", { global: { a: 1 } }); // 1
luadata.serializer.unserialize("a['b'].c", { global: { a: { b: { c: 1 } } } }); // 1
luadata.serializer.unserialize("a.b", { global: { a: { b: { c: 1 } } } }); // new Map([["c": 1]])
luadata.serializer.unserialize("a.b", { global: { a: { b: { c: [1] } } } }); // new Map([["c": [1]]])
luadata.serializer.unserialize("a.b", { global: { a: { b: { c: 1 } } }, dictType: 'object' }); // { c: 1 }
luadata.serializer.unserialize("a.b", { global: { a: { b: { c: [1] } } }, dictType: 'object' }); // { c: [1] }

unserialize.strictGlobal

Control if non-exists global variable is allowed, default value is true.

import * as luadata from 'luadata';

luadata.serializer.unserialize("b", { global: { a: 1 } }); // Error: attempt to refer a non-exists global variable.
luadata.serializer.unserialize("b", { global: { a: 1 }, strictGlobal: false }); // undefined

LICENSE

BSD