From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <ratmice@gmail.com>
Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com
 [IPv6:2a00:1450:4864:20::333])
 by sourceware.org (Postfix) with ESMTPS id 216FD3858D35
 for <gdb@sourceware.org>; Sun, 18 Oct 2020 09:25:06 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 216FD3858D35
Received: by mail-wm1-x333.google.com with SMTP id d3so9753508wma.4
 for <gdb@sourceware.org>; Sun, 18 Oct 2020 02:25:06 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:mime-version:references:in-reply-to:from:date
 :message-id:subject:to:cc;
 bh=r6aHQckUHm7ASfn5UHeXm+/dP37CW8HSt/Am2f+W7Uo=;
 b=e/txR+j3Wcr1c0WfDBzHF5J5bw0p2zySke2xKkc0oSGyyoollbRGwSo65gRGqQWyOF
 gY+OULjnyvl2fQPa1bdV3juAt05X+JBxNJaKRdYmuDs9CoEJ37D5XS5ad22C5FQeVBKk
 dQNx3CelLy0Ccs+kRJxQsJtgJeAAbsNq4CN5lFAnBAE6SzUG6LH2s+Xw0yDkhR+minIE
 CTu+YIIxnMwGXeeF9TnaVSciVSpj7hV4lEjavZgZxXIZgFN7Ph4pjLnXObTp6E9f6h36
 FRiFGvqbdDJY+BNnOErE6uuVLnf4Oo0mmL3GmDzY/q8GmLkVqEpsv5WRzqAtsh4OQTx2
 Pliw==
X-Gm-Message-State: AOAM532j2R/Rj76Bc1K0Ljnr5tOgBlpGcYAijSjGiOBwmW6LGoUWG5dj
 dbHzANhaWpX/6Xw49weNxLIbpqlKyjMXUwbbA8ctUALF6eJTTA==
X-Google-Smtp-Source: ABdhPJwKBso6NUHB6ixIv+stKh/uZkLTBRif7RGNExFidTtn9/5Lq4LZfPNn7MAFEuvVGt6QETntF/hSiARRCjo0BRA=
X-Received: by 2002:a7b:cb8d:: with SMTP id m13mr11977253wmi.59.1603013105195; 
 Sun, 18 Oct 2020 02:25:05 -0700 (PDT)
MIME-Version: 1.0
References: <46a8f2123a154c4b86b8f38fff332f059b72fc77.camel@gnu.org>
In-Reply-To: <46a8f2123a154c4b86b8f38fff332f059b72fc77.camel@gnu.org>
From: Matt Rice <ratmice@gmail.com>
Date: Sun, 18 Oct 2020 09:24:53 +0000
Message-ID: <CACTLOFrVPfSMXdn-v3ueUsP+LBLwDtH3=s2GZz7i3pyeadyQuw@mail.gmail.com>
Subject: Re: GDB: Setting the prompt from python
To: Paul Smith <psmith@gnu.org>
Cc: GDB <gdb@sourceware.org>
Content-Type: text/plain; charset="UTF-8"
X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,
 SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: gdb@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gdb mailing list <gdb.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/gdb>,
 <mailto:gdb-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/gdb/>
List-Post: <mailto:gdb@sourceware.org>
List-Help: <mailto:gdb-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/gdb>,
 <mailto:gdb-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Sun, 18 Oct 2020 09:25:07 -0000

On Sun, Oct 18, 2020 at 3:27 AM Paul Smith via Gdb <gdb@sourceware.org> wrote:
>
> Is it possible to change the GDB prompt from within Python, such that
> the prompt contains a trailing space (like the default prompt)?
>
> I cannot figure it out.
>
> If I run set prompt from the normal command interpreter I can easily
> just put a space at the end and it works:
>
>   (gdb) set prompt XXX\n
>   XXXprint 1
>   1
>
>   (gdb) set prompt XXX \n
>   XXX print 1
>   1
>
> showing \n to indicate where I type ENTER
>
> Fine.  But this doesn't work from Python:
>
>   (gdb) python
>   > gdb.execute('set prompt XXX ', True)
>   > ^D
>   XXXprint 1
>   1
>
> It seems that no matter what I do, the trailing space is stripped off.
> Is there some other way to set the prompt from Python?

Weird, using the python prompt hook does work.

(gdb) python
>gdb.prompt_hook = lambda old_prompt: "XXX "
>end
XXX quit