From e1e55d346a2f648f05d36bed7edcd3910f516f1d Mon Sep 17 00:00:00 2001
From: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Date: Thu, 13 Jun 2024 11:06:13 +0300
Subject: [PATCH] util/readline: Add C-u shortcut
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Add support for the unix-line-discard readline action, which erases from
the cursor position up to the beginning of the line. The default
binding, C-u, was chosen.
This is useful to quickly erase command input while working on the
monitor interface.
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <6772067e1c0d4b1c5310e5446e9e3e1c6b3b5bc0.1718265822.git.manos.pitsidianakis@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
util/readline.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/util/readline.c b/util/readline.c
index 0b627d62ad..0f19674f52 100644
--- a/util/readline.c
+++ b/util/readline.c
@@ -271,6 +271,14 @@ static void readline_hist_add(ReadLineState *rs, const char *cmdline)
rs->hist_entry = -1;
}
+static void readline_kill_line(ReadLineState *rs)
+{
+ while (rs->cmd_buf_index > 0) {
+ readline_backward_char(rs);
+ readline_delete_char(rs);
+ }
+}
+
/* completion support */
void readline_add_completion(ReadLineState *rs, const char *str)
@@ -426,6 +434,10 @@ void readline_handle_byte(ReadLineState *rs, int ch)
/* ^P Prev line in history */
readline_up_char(rs);
break;
+ case 21:
+ /* ^U Kill backward from point to the beginning of the line. */
+ readline_kill_line(rs);
+ break;
case 23:
/* ^W */
readline_backword(rs);
--
2.30.2