From 837b4d765a259bbdcb4b9c28bc6b1c5eb1548292 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Haoran=20S=2E=20Diao=20=28=E5=88=81=E6=B5=A9=E7=84=B6=29?=
 <0@hairydiode.xyz>
Date: Sat, 13 Sep 2025 01:13:25 -0700
Subject: Added safe state function

---
 escape.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

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
-- 
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