* [PATCH] readline: make ctrl-u to work like linux console
@ 2019-10-15 21:02 sendpatch
0 siblings, 0 replies; 6+ messages in thread
From: sendpatch @ 2019-10-15 21:02 UTC (permalink / raw)
To: barebox; +Cc: DU HUANPENG
From: DU HUANPENG <u74147@gmail.com>
currtly, the ctrl-u discards the whole line, in most linux
boxes, ctrl-u just remove character before cursor.
this patch make ctrl-u to do this.
Signed-off-by: DU HUANPENG <u74147@gmail.com>
---
lib/readline.c | 31 +++++++++++++++++++++++++++++--
1 file changed, 29 insertions(+), 2 deletions(-)
diff --git a/lib/readline.c b/lib/readline.c
index d026af1..eba3da4 100644
--- a/lib/readline.c
+++ b/lib/readline.c
@@ -291,8 +291,35 @@ 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();
+ } else {
+ for(i=num; i<eol_num; i++) {
+ buf[i-num] = buf[i];
+ }
+ buf[i] = '\0';
+
+ for(i=0; i<num; i++) {
+ putchar(CTL_BACKSPACE);
+ }
+ for(i=0; i<eol_num; i++) {
+ putchar(' ');
+ }
+ for(i=0; i<eol_num; i++) {
+ putchar(CTL_BACKSPACE);
+ }
+
+ eol_num -= num;
+ num = 0;
+
+ for(i=0; i<eol_num; i++) {
+ putchar(buf[i]);
+ }
+ for(i=0; i<eol_num; i++) {
+ putchar(CTL_BACKSPACE);
+ }
+ }
break;
case DEL:
case BB_KEY_DEL7:
--
2.7.4
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^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH] readline: make ctrl-u to work like linux console
@ 2019-10-15 21:29 sendpatch
0 siblings, 0 replies; 6+ messages in thread
From: sendpatch @ 2019-10-15 21:29 UTC (permalink / raw)
To: barebox; +Cc: DU HUANPENG
From: DU HUANPENG <u74147@gmail.com>
currtly, the ctrl-u discards the whole line, in most linux
boxes, ctrl-u just remove character before cursor.
this patch make ctrl-u to do this.
Signed-off-by: DU HUANPENG <u74147@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();
+ } 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:
--
2.7.4
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^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH] readline: make ctrl-u to work like linux console
@ 2019-10-15 21:54 sendpatch
2019-10-16 5:29 ` duhuanpeng
0 siblings, 1 reply; 6+ messages in thread
From: sendpatch @ 2019-10-15 21:54 UTC (permalink / raw)
To: barebox; +Cc: DU HUANPENG
From: DU HUANPENG <u74147@gmail.com>
currtly, the ctrl-u discards the whole line, in most linux
boxes, ctrl-u just remove character before cursor.
this patch make ctrl-u to do this.
Signed-off-by: DU HUANPENG <u74147@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();
+ } 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:
--
2.7.4
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^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH] readline: make ctrl-u to work like linux console
@ 2019-10-16 5:34 sendpatch
2019-10-16 5:59 ` Oleksij Rempel
0 siblings, 1 reply; 6+ messages in thread
From: sendpatch @ 2019-10-16 5:34 UTC (permalink / raw)
To: barebox; +Cc: DU HUANPENG
From: DU HUANPENG <u74147@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 <u74147@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();
+ } 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:
--
2.7.4
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH] readline: make ctrl-u to work like linux console
2019-10-16 5:34 sendpatch
@ 2019-10-16 5:59 ` Oleksij Rempel
0 siblings, 0 replies; 6+ messages in thread
From: Oleksij Rempel @ 2019-10-16 5:59 UTC (permalink / raw)
To: sendpatch, barebox; +Cc: DU HUANPENG
[-- Attachment #1.1.1: Type: text/plain, Size: 1948 bytes --]
Hi,
Am 16.10.19 um 07:34 schrieb sendpatch@qq.com:
> From: DU HUANPENG <u74147@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 <u74147@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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^ permalink raw reply [flat|nested] 6+ messages in thread
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Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2019-10-15 21:02 [PATCH] readline: make ctrl-u to work like linux console sendpatch
2019-10-15 21:29 sendpatch
2019-10-15 21:54 sendpatch
2019-10-16 5:29 ` duhuanpeng
2019-10-16 5:34 sendpatch
2019-10-16 5:59 ` Oleksij Rempel
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