From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Jakub Jankiewicz Newsgroups: gmane.emacs.help Subject: Comint mode with REPL in Node.js and Readline Date: Thu, 2 Apr 2020 13:18:06 +0200 Message-ID: <20200402131806.40916cb2@jcubic> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="100619"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Apr 02 13:28:15 2020 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jJy19-000Q43-0R for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 02 Apr 2020 13:28:15 +0200 Original-Received: from localhost ([::1]:37126 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jJy18-0004jM-2U for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 02 Apr 2020 07:28:14 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:50210) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jJy0n-0004j4-Rg for help-gnu-emacs@gnu.org; Thu, 02 Apr 2020 07:27:55 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jJy0m-0007tK-IQ for help-gnu-emacs@gnu.org; Thu, 02 Apr 2020 07:27:53 -0400 Original-Received: from smtpo82.poczta.onet.pl ([213.180.149.135]:51666) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jJy0m-0007sc-0E for help-gnu-emacs@gnu.org; Thu, 02 Apr 2020 07:27:52 -0400 Original-Received: from jcubic (unknown [185.129.113.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: jcubic@onet.pl) by smtp.poczta.onet.pl (Onet) with ESMTPSA id 48tLCR2tZLz1bQNc6 for ; Thu, 2 Apr 2020 13:18:10 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onet.pl; s=2011; t=1585826291; bh=5nMNN+94/ni/4Sa0/DFxGqaK9j6X+kXbkOahLTdmAvg=; h=Date:From:To:Subject:From; b=RL0ECM7EWVid9se4ZQTumF5oXqc7R9GBqcoILC6ffPtJa5srFfH4MOH6i6rgq2Zw+ jEWvfhQ2T5TlBeqTeggFTr7m1I9h1YMi7i7zRyd6q3p05vYsvG/Pmw0BJfV+L0Swtr c7T7cFmfnfBlgNHM9GSoe9yVu8IzL5fjqqVnCN5Y= X-Mailer: Claws Mail 3.17.3git196 (GTK+ 2.24.32; x86_64-pc-linux-gnu) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 213.180.149.135 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:122735 Archived-At: Hi, I have issue with comint mode: I reproduced the issue with simple Node.js code: shell.js file: #!/usr/bin/env node const readline = require('readline'); var prompt = 'lips> '; var continuePrompt = '... '; const rl = readline.createInterface({ input: process.stdin, output: process.stdout, prompt: prompt, terminal: !!process.stdin.isTTY }); if (process.stdin.isTTY) { rl.prompt(); } rl.on('line', function(line) { if (process.stdin.isTTY) { rl.prompt(); } }); If I run this as scheme in GNU Emacs: (run-scheme "/path/.../shell.js") ;; this is needed otherwise I get duplicated input (setq comint-process-echoes t) And the issue I have is that when I resize the window I've got duplicated: lips> lips> lips> lips> What I did wrong with my REPL in Node.js anybody have idea if I need to setup something in Emacs. REPL works fine in terminal emulator and ansi-term. I've asked the same question on StackOverflow in hope I'll get some answers how to fix this: https://stackoverflow.com/q/60987722/387194 I have no idea if it's issue with Node.js Readline or with GNU Emacs comint mode. -- Jakub Jankiewicz, Web Developer https://jcubic.pl/me