From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: Emacs can't capture fzf output in Windows 10 Date: Mon, 02 Mar 2020 10:42:54 +0200 Message-ID: <83d09vywoh.fsf@gnu.org> References: Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="109952"; 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 Mon Mar 02 09:43:22 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 1j8gfZ-000SWf-Jr for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 02 Mar 2020 09:43:21 +0100 Original-Received: from localhost ([::1]:56810 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j8gfY-0005Wj-Mw for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 02 Mar 2020 03:43:20 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40094) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j8gfF-0005WZ-04 for help-gnu-emacs@gnu.org; Mon, 02 Mar 2020 03:43:04 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:35222) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1j8gfE-0002fQ-Sv for help-gnu-emacs@gnu.org; Mon, 02 Mar 2020 03:43:00 -0500 Original-Received: from [176.228.60.248] (port=3524 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1j8gfE-0000bp-BX for help-gnu-emacs@gnu.org; Mon, 02 Mar 2020 03:43:00 -0500 In-Reply-To: (shuguang79@qq.com) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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:122507 Archived-At: > From: "Shuguang Sun" > Date: Mon, 2 Mar 2020 12:25:48 +0800 > > I'm trying to use fzf (junegunn/fzf) in windows, however it seems emacs can't capture the output of fzf. > > > Example:  fzf with -filter will be in filter mode and do not start interactive finder. > > - In shell (cmd): "fzf.exe --filter=tmp" will not exit > - In shell (cmd): "fzf.exe --filter=tmp > aa.txt"  will not exit > > - (call-process "cmd.exe" nil t nil "/C" "start" "fzf" "--filter=tmp") will give a flash window (with list of findings) and print 0 in emacs. > > - (shell-command "fzf --filter=tmp") will lead to a message (Shell command failed with code 1 and no output) > - (shell-command-to-string "fzf --filter=tmp") give a empty string > > > However if I run "fzf --filter=tmp" in the CMD box it will provide a list of finding, and "fzf --filter=tmp > aa.txt" will print the findings to file aa.txt. > > > It can't run fzf in interactive mode as I understand there is no true term for emacs in windows but why it can't be run in filter mode? It looks like fzf uses direct screen I/O? If so, this won't work on Windows when stdout is a pipe, which is what happens when Emacs on Windows runs a subprocess. I suggest to open an issue with fzf, and ask there whether it can run with pipes as stdin/stdout.