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From: Du Huanpeng <u74147@gmail.com>
To: barebox@lists.infradead.org
Cc: Du Huanpeng <u74147@gmail.com>
Subject: [PATCH] lib: readline support ctrl-l to clear screen
Date: Sun, 15 Nov 2015 09:01:19 +0800	[thread overview]
Message-ID: <1447549279-11694-1-git-send-email-u74147@gmail.com> (raw)

maybe it is easier to press ctrl-l to clear the screen than type
'clear' command.

Signed-off-by: Du Huanpeng <u74147@gmail.com>
---
 lib/readline.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/readline.c b/lib/readline.c
index 14dd311..170effb 100644
--- a/lib/readline.c
+++ b/lib/readline.c
@@ -262,6 +262,15 @@ int readline(const char *prompt, char *buf, int len)
 				eol_num--;
 			}
 			break;
+		case CTL_CH('l'):
+			printf(ANSI_CLEAR_SCREEN);
+			buf[eol_num] = 0;
+			printf("%s%s", prompt, buf);
+			wlen = eol_num - num;
+			while (wlen--) {
+				getcmd_putch(CTL_BACKSPACE);
+			}
+			break;
 		case BB_KEY_ERASE_TO_EOL:
 			ERASE_TO_EOL();
 			break;
-- 
1.9.1


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             reply	other threads:[~2015-11-15  1:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-15  1:01 Du Huanpeng [this message]
2015-11-15  8:50 ` Antony Pavlov
2015-11-17  8:15 ` Sascha Hauer
  -- strict thread matches above, loose matches on Subject: below --
2015-11-14 11:29 Du Huanpeng

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