Projetos/rpi-buildroot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

support/kconfig: handle backspace (^H) key

Browse Source 
This is in the mainline kernel since v5.1-rc3:
9c38f1f04408 ("kconfig/[mn]conf: handle backspace (^H) key")

Quoting the commit's log:

"
Backspace is not working on some terminal emulators which do not send the
key code defined by terminfo. Terminals either send '^H' (8) or '^?' (127).
But currently only '^?' is handled. Let's also handle '^H' for those
terminals.
"

Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit d65c10c20a)
This commit is contained in:
Sébastien Szymanski
2025-03-13 18:44:59 +01:00
committed by Thomas Perale
parent 8c10983c40
commit e5600040ff
5 changed files with 68 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
support/kconfig/lxdialog/inputbox.c
View File

@@ -126,7 +126,8 @@ do_resize:
case KEY_DOWN:
break;
case KEY_BACKSPACE:
case 127:
case 8: /* ^H */
case 127: /* ^? */
if (pos) {
wattrset(dialog, dlg.inputbox.atr);
if (input_x == 0) {

2
support/kconfig/nconf.c
View File

@@ -1048,7 +1048,7 @@ static int do_match(int key, struct match_state *state, int *ans)
state->match_direction = FIND_NEXT_MATCH_UP;
*ans = get_mext_match(state->pattern,
state->match_direction);
} else if (key == KEY_BACKSPACE || key == 127) {
} else if (key == KEY_BACKSPACE || key == 8 || key == 127) {
state->pattern[strlen(state->pattern)-1] = '\0';
adj_match_dir(&state->match_direction);
} else

3
support/kconfig/nconf.gui.c
View File

@@ -440,7 +440,8 @@ int dialog_inputbox(WINDOW *main_window,
case KEY_F(F_EXIT):
case KEY_F(F_BACK):
break;
case 127:
case 8: /* ^H */
case 127: /* ^? */
case KEY_BACKSPACE:
if (cursor_position > 0) {
memmove(&result[cursor_position-1],

62
support/kconfig/patches/23-kconfig-mn-conf-handle-backspace-H-key.patch Normal file
View File

@@ -0,0 +1,62 @@
From 9c38f1f044080392603c497ecca4d7d09876ff99 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Mon, 25 Mar 2019 15:16:47 +0000
Subject: [PATCH 23/23] kconfig/[mn]conf: handle backspace (^H) key
Backspace is not working on some terminal emulators which do not send the
key code defined by terminfo. Terminals either send '^H' (8) or '^?' (127).
But currently only '^?' is handled. Let's also handle '^H' for those
terminals.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
kconfig/lxdialog/inputbox.c | 3 ++-
kconfig/nconf.c | 2 +-
kconfig/nconf.gui.c | 3 ++-
3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/kconfig/lxdialog/inputbox.c b/kconfig/lxdialog/inputbox.c
index 611945611bf8..1dcfb288ee63 100644
--- a/kconfig/lxdialog/inputbox.c
+++ b/kconfig/lxdialog/inputbox.c
@@ -113,7 +113,8 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width
case KEY_DOWN:
break;
case KEY_BACKSPACE:
- case 127:
+ case 8: /* ^H */
+ case 127: /* ^? */
if (pos) {
wattrset(dialog, dlg.inputbox.atr);
if (input_x == 0) {
diff --git a/kconfig/nconf.c b/kconfig/nconf.c
index a4670f4e825a..ac92c0ded6c5 100644
--- a/kconfig/nconf.c
+++ b/kconfig/nconf.c
@@ -1048,7 +1048,7 @@ static int do_match(int key, struct match_state *state, int *ans)
state->match_direction = FIND_NEXT_MATCH_UP;
*ans = get_mext_match(state->pattern,
state->match_direction);
- } else if (key == KEY_BACKSPACE || key == 127) {
+ } else if (key == KEY_BACKSPACE || key == 8 || key == 127) {
state->pattern[strlen(state->pattern)-1] = '\0';
adj_match_dir(&state->match_direction);
} else
diff --git a/kconfig/nconf.gui.c b/kconfig/nconf.gui.c
index 7be620a1fcdb..77f525a8617c 100644
--- a/kconfig/nconf.gui.c
+++ b/kconfig/nconf.gui.c
@@ -439,7 +439,8 @@ int dialog_inputbox(WINDOW *main_window,
case KEY_F(F_EXIT):
case KEY_F(F_BACK):
break;
- case 127:
+ case 8: /* ^H */
+ case 127: /* ^? */
case KEY_BACKSPACE:
if (cursor_position > 0) {
memmove(&result[cursor_position-1],
--
2.48.1

1
support/kconfig/patches/series
View File

@@ -11,3 +11,4 @@
20-merge_config.sh-Allow-to-define-config-prefix.patch
21-Avoid-false-positive-matches-from-comment-lines.patch
22-kconfig-lxdialog-fix-check-with-GCC14.patch
23-kconfig-mn-conf-handle-backspace-H-key.patch