This crate provides json5 deserialization for luajit.
Inspired and adapted from json5-rs
Also, if you haven't already, add ';?.dylib' to your package.cpath so it will be recognized by the interpreter.
You can simply require the module in your scripts and parse a string using the parse method:
local parse = require'json5'.parse local data = [[ { /* This is a comment */ ecma_identifier: 'works like a charm', "string keys": [1,2,3], // trailing comma } ]] local parsed_data = parse(data)You must have cargo installed and in your $PATH
Using packer.nvim:
use { 'Joakker/lua-json5', -- if you're on windows -- run = 'powershell ./install.ps1' run = './install.sh' }Using lazy.nvim
{ 'Joakker/lua-json5', build = './install.sh', }You can also build the library for lua 5.4 using the following command:
cargo build --no-default-features --features lua54 --releaseTested on neovim using the following script:
local data = [[ {"hello":"world"} ]] local json5 = require('json5').parse local json_decode = vim.fn.json_decode local time_json5, time_json_decode = 0, 0 local aux for _ = 1, 1000 do aux = os.clock() json5(data) time_json5 = time_json5 + (os.clock() - aux) end for _ = 1, 1000 do aux = os.clock() json_decode(data) time_json_decode = time_json_decode + (os.clock() - aux) end print(('json5: %.3fms'):format(time_json5)) print(('json_decode: %.3fms'):format(time_json_decode))On average:
json5: 0.023ms json_decode: 0.010ms If performance is your concern, I think you're better off using the builtin function json_decode. The advantage this package has over regular json, however, is that you get json5 features, such as comments, trailing commas and more flexible string literals.