Wolfram Langauge Server with GNU Emacs on Windows

lsp-wl-stdio-bridge.js

const net = require('node:net');
const child_process = require('node:child_process');
const serverPort = 6536;
const host = "127.0.0.1"

let connected = false;
let cachedData = [];
let client = null;
let serverProcess = null;

process.stdin.on("data", data => {
    if(!connected) {
        cachedData += data;
        return;
    }
    client.write(data);
})

function startServer(port) {
    serverProcess = child_process.execFile("wolframscript", [
        "D:/Projects/lsp-wl-develop/init.wls",
        "--socket=".concat(port.toString())
    ]);
    serverProcess.stdout.on('data', (data) => {
        process.stderr.write(data);
    });
    serverProcess.stderr.on('data', (data) => {
        process.stderr.write(data);
    });
}

function startCommunication () {
    process.stderr.write("Sending cached data\n");
    for(const data of cachedData) {
        client.write(data);
    }
    connected = true;
    client.on('data', function(chunk) {
        process.stdout.write(chunk);
    });
}

const server = net.createServer((connection) => {
    process.stderr.write("Language server connected\n");
    client = connection;
    client.on('end', () => {
        process.exit(0);
    });
    startCommunication();
});

server.on('error', (err) => {
    throw err;
});

server.listen(serverPort, () => {
    startServer(serverPort);
});

See https://github.com/kenkangxgwe/lsp-wl/wiki#windows