moustest: backspace key support in prompts

1 files changed, 19 insertions, 0 deletions

diff --git a/moustest.c b/moustest.c
index 0d71921..c53dcfd 100644
--- a/moustest.c
+++ b/moustest.c
@@ -280,6 +280,19 @@ void console_leave()
 	_wrapon(_GWRAPOFF);
 }
 
+void console_backspace()
+{
+	_disable();
+	console_enter();
+	if (ctextpos.col > 0) {
+		_settextposition(ctextpos.row, ctextpos.col - 1);
+		_outtext(" ");
+		_settextposition(ctextpos.row, ctextpos.col - 1);
+	}
+	console_leave();
+	_enable();
+}
+
 void console_print(char __far *str)
 {
 	_disable();
@@ -313,6 +326,12 @@ int console_getline(char *buffer, int maxlen)
 		case 0: // Extended: consume and ignore
 			c = getch();
 			break;
+		case 8: // Backspace
+			if (bufpos > 0) {
+				bufpos--;
+				console_backspace();
+			}
+			break;
 		case 27: // ESC
 			console_print("\n");
 			return -1;