Am 16.10.19 um 09:25 schrieb sendpa...@qq.com:
> From: DU HUANPENG <u74...@gmail.com>
>
> currtly, the ctrl-u discards the whole line, in most linux
> boxes, ctrl-u just erase characters before cursor to the
> begginning of the line. this patch make ctrl-u to do this.
>
> Signed-off-by: DU HUANPENG <u74...@gmail.com>
> ---
> lib/readline.c | 26 ++++++++++++++++++++++++--
> 1 file changed, 24 insertions(+), 2 deletions(-)
>
> diff --git a/lib/readline.c b/lib/readline.c
> index d026af1..3d5fafd 100644
> --- a/lib/readline.c
> +++ b/lib/readline.c
> @@ -188,9 +188,10 @@ int readline(const char *prompt, char *buf, int len)
> unsigned wlen;
> int ichar;
> int insert = 1;
> + int i;
> #ifdef CONFIG_AUTO_COMPLETE
> char tmp;
> - int reprint, i;
> + int reprint;
> char *completestr;
>
> complete_reset();
> @@ -290,10 +291,31 @@ int readline(const char *prompt, char *buf, int len)
> insert = !insert;
> break;
> case BB_KEY_ERASE_LINE:
> - case CTL_CH('u'):
> BEGINNING_OF_LINE();
> ERASE_TO_EOL();
> break;
> + case CTL_CH('u'):
> + if (num <= eol_num) {
i doubt num can be ever bigger then eol_num. or do i missing some thing?
> + for (i = num; i < eol_num; i++)
> + buf[i-num] = buf[i];
> + buf[i] = '\0';
> +
> + for (i = 0; i < num; i++)
> + getcmd_putch(CTL_BACKSPACE);
> + for (i = 0; i < eol_num; i++)
> + getcmd_putch(' ');
> + for (i = 0; i < eol_num; i++)
> + getcmd_putch(CTL_BACKSPACE);
> +
> + eol_num -= num;
> + num = 0;
> +
> + for (i = 0 ; i < eol_num; i++)
> + getcmd_putch(buf[i]);
> + for (i = 0; i < eol_num; i++)
> + getcmd_putch(CTL_BACKSPACE);
> + }
> + break;
> case DEL:
> case BB_KEY_DEL7:
> case 8:
>
--
Regards,
Oleksij
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