[kconfig] kconfig: lxdialog: clean string input with whitespace

Commit Message

yuan linyu March 19, 2018, 12:09 p.m. UTC

From: yuan linyu <[e-mail]>

remove leading/trailing whitespace and all whitespace

Signed-off-by: yuan linyu <[e-mail]>
---
 scripts/kconfig/lxdialog/inputbox.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

Patch

diff --git a/scripts/kconfig/lxdialog/inputbox.c b/scripts/kconfig/lxdialog/inputbox.c
index d58de1dc5360..647a9dcb8710 100644
--- a/scripts/kconfig/lxdialog/inputbox.c
+++ b/scripts/kconfig/lxdialog/inputbox.c
@@ -38,6 +38,31 @@  static void print_buttons(WINDOW * dialog, int height, int width, int selected)
 	wrefresh(dialog);
 }
 
+static void dialog_input_clean(void)
+{
+	char *instr = dialog_input_result;
+	int l, s, e;
+
+	l = strlen(instr);
+	if (l == 0)
+		return;
+	for (s = 0; s < l; s++) {
+		if (instr[s] != ' ')
+			break;
+		instr[s] = '\0';
+	}
+	if (s == l)
+		return;
+	for (e = l - 1; e > 0; e--) {
+		if (instr[e] != ' ')
+			break;
+		instr[e] = '\0';
+	}
+	if (s == 0)
+		return;
+	memmove(instr, instr + s, e - s + 2);
+}
+
 /*
  * Display a dialog box for inputing a string
  */
@@ -234,6 +259,7 @@  int dialog_inputbox(const char *title, const char *prompt, int height, int width
 		case 'O':
 		case 'o':
 			delwin(dialog);
+			dialog_input_clean();
 			return 0;
 		case 'H':
 		case 'h':
@@ -281,6 +307,7 @@  int dialog_inputbox(const char *title, const char *prompt, int height, int width
 		case ' ':
 		case '\n':
 			delwin(dialog);
+			dialog_input_clean();
 			return (button == -1 ? 0 : button);
 		case 'X':
 		case 'x':