bug#45938: [PATCH] Avoid ANSI escape characters (bug#45938)

[Evgenii Klimov via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

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Tags: patch

GNU Readline variables (colored-completion-prefix and colored-stats) set
in .inputrc file by the user to improve GNU Readline output lead to
corrupted completion candidates during native completion setup.

Like this:

^[[01;35m0^[[0m^[[K__dummy_completion__  ^[[01;35m1^[[0m^[[K__dummy_completion__  

However this is expected:

0__dummy_completion__  1__dummy_completion__  



In GNU Emacs 30.0.60 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.41, cairo version 1.18.0)
Windowing system distributor 'The X.Org Foundation', version 11.0.12101011
System Description: Guix System

Configured using:
 'configure
 CONFIG_SHELL=/gnu/store/fl3l5wx8qynjrvx5lilz6c38hb77cf36-bash-minimal-5.1.16/bin/bash
 SHELL=/gnu/store/fl3l5wx8qynjrvx5lilz6c38hb77cf36-bash-minimal-5.1.16/bin/bash
 --prefix=/gnu/store/45nwc8hc8fn1fhvr9qw01ylkfpvzxwsw-emacs-next-30.0.60-1.4e22ef8
 --enable-fast-install --with-cairo --with-modules
 --with-native-compilation=aot --disable-build-details'


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From d5fb353404814afb135ba98effd200c5733bbcc3 Mon Sep 17 00:00:00 2001
From: Evgenii Klimov <eugene.dev@lipklim.org>
Date: Sun, 25 Feb 2024 20:12:38 +0000
Subject: [PATCH] Avoid ANSI escape characters (bug#45938)

* lisp/progmodes/python.el (python-shell-completion-native-setup):
Avoid escape characters in comint output
---
 lisp/progmodes/python.el | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index a00289d6de9..7193cc19425 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -4549,6 +4549,9 @@ (defun python-shell-completion-native-setup ()
             readline.parse_and_bind('tab: complete')
             # Require just one tab to send output.
             readline.parse_and_bind('set show-all-if-ambiguous on')
+            # Avoid ANSI escape characters in the output
+            readline.parse_and_bind('set colored-completion-prefix off')
+            readline.parse_and_bind('set colored-stats off')
             # Avoid replacing common prefix with ellipsis.
             readline.parse_and_bind('set completion-prefix-display-length 0')
 
-- 
2.45.2