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Commit 13103fc1 authored Mar 25, 2019 by Changbin Du Committed by Greg Kroah-Hartman May 04, 2019

kconfig/[mn]conf: handle backspace (^H) key



[ Upstream commit 9c38f1f044080392603c497ecca4d7d09876ff99 ]

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>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>

parent 9b972025

scripts/kconfig/lxdialog/inputbox.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -126,7 +126,8 @@ 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) {

scripts/kconfig/nconf.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1046,7 +1046,7 @@ 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

scripts/kconfig/nconf.gui.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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],