Added safe state function

1 files changed, 21 insertions, 0 deletions

diff --git a/escape.h b/escape.h
index d7c54a4..a9fe743 100644
--- a/escape.h
+++ b/escape.h
@@ -34,6 +34,27 @@ enum esc_state {
 	//escape followed by an escape, has to be user generated
 	DOUBLE_ESC,
 };
+
+//returns 1 if the current state is safe to insert characters after, 0 if not
+int safe_state(enum esc_state state) {
+	swtich (state) {
+		case CSI_END:
+		case ST:
+		case nF_END:
+		case C0:
+		case C1:
+		case DECSC:
+		case DECRC:
+		case DOUBLE_ESC:
+		case NORMAL:
+			return 1;
+		break;
+		default:
+			return 0;
+		break;
+	}
+}
+
 //global stdin -> pty ESC state
 enum esc_state in_state = NORMAL;
 //global pty -> stdout ESC state