kconfig: factor out common code shared by mconf and nconf

Separate out the duplicated code to mnconf-common.c.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/scripts/kconfig/mnconf-common.c b/scripts/kconfig/mnconf-common.c
new file mode 100644
index 000000000000..18cb9a6c5aaa
--- /dev/null
+++ b/scripts/kconfig/mnconf-common.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "expr.h"
+#include "list.h"
+#include "mnconf-common.h"
+
+int jump_key_char;
+
+int next_jump_key(int key)
+{
+	if (key < '1' || key > '9')
+		return '1';
+
+	key++;
+
+	if (key > '9')
+		key = '1';
+
+	return key;
+}
+
+int handle_search_keys(int key, size_t start, size_t end, void *_data)
+{
+	struct search_data *data = _data;
+	struct jump_key *pos;
+	int index = 0;
+
+	if (key < '1' || key > '9')
+		return 0;
+
+	list_for_each_entry(pos, data->head, entries) {
+		index = next_jump_key(index);
+
+		if (pos->offset < start)
+			continue;
+
+		if (pos->offset >= end)
+			break;
+
+		if (key == index) {
+			data->target = pos->target;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+int get_jump_key_char(void)
+{
+	jump_key_char = next_jump_key(jump_key_char);
+
+	return jump_key_char;
+}