From 1cfeec0ca3fc254e770776765c9e912dc4ab301a Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Mon, 1 Feb 2021 22:59:11 +0900
Subject: [PATCH] Fix segmentation fault on \x1b[0K

Fix #2339
---
 src/ansi.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ansi.go b/src/ansi.go
index 0d716c0d..b4f98f6d 100644
--- a/src/ansi.go
+++ b/src/ansi.go
@@ -201,7 +201,7 @@ func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
 		state = &ansiState{prevState.fg, prevState.bg, prevState.attr, prevState.lbg}
 	}
 	if ansiCode[0] != '\x1b' || ansiCode[1] != '[' || ansiCode[len(ansiCode)-1] != 'm' {
-		if strings.HasSuffix(ansiCode, "0K") {
+		if strings.HasSuffix(ansiCode, "0K") && prevState != nil {
 			state.lbg = prevState.bg
 		}
 		return state