Hi, Am 16.10.19 um 07:34 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.
Cool, didnÄt know i can use ctrl-u like this :)
>
> Signed-off-by: DU HUANPENG <u74...@gmail.com>
> ---
> lib/readline.c | 34 +++++++++++++++++++++++++++++++---
> 1 file changed, 31 insertions(+), 3 deletions(-)
>
> diff --git a/lib/readline.c b/lib/readline.c
> index d026af1..c0b194c 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();
> @@ -291,8 +292,35 @@ int readline(const char *prompt, char *buf, int len)
> break;
> case BB_KEY_ERASE_LINE:
> case CTL_CH('u'):
> - BEGINNING_OF_LINE();
> - ERASE_TO_EOL();
> + if(num >= eol_num) {
> + BEGINNING_OF_LINE();
> + ERASE_TO_EOL();
Please use kernel/barebox coding style.
./scripts/checkpatch.pl in barebox repository can help you.
> + } else {
> + 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:
>
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